| L | Laufende Behandlung|| | Ongoing treatment | Laufende Behandlung | Traitement en cours | Details |
| L | Length | | | | Details |
| L | Laterolog | | | | Details |
| L | lower {as qualifier) | | | | Details |
| l | lower | | | | Details |
| L | Focused | | | | Details |
| L | Guard | | | | Details |
| L | Lateral | | | | Details |
| l | liter | | | | Details |
| L | Sonolog | | | | Details |
| L | Steel pads with tungsten carbide inserts | | | | Details |
| L | L Unwirtschaftlich, fördert aus Lagerstättengründen | | | | Details |
| L | Liquidiert | Plug & Abandoned | | | Details |
| L | Laufende Behandlung | Well Intervention | | | Details |
| L | Legal | | | | Details |
| L | Liquid | | | | Details |
| L | Liquid i.e. volume at surface conditions | | | | Details |
| L | liter | | | | Details |
| L | liter | | | | Details |
| L | Kondensatinhalt Angegeben (Tonne) | Given oil content | | | Details |
| L & P | ladder & platform | | | | Details |
| L U | lease use(gas) | | | | Details |
| L x R | links rechts Übergang | | | | Details |
| L&T | Larsen and Toubro | | | | Details |
| L-DK | loading dock | | | | Details |
| L-VOLT | low voltage | | | | Details |
| L.P. | line pipe | | | | Details |
| L.S. | LumpSum. | | | | Details |
| L.T. | Liner Terms | | | | Details |
| L/ | Lower, i.e., L/Gallup | | | | Details |
| L/Alb | Lower Albany | | | | Details |
| L/bar | liter per bar | | | | Details |
| L/BR | liter per bar | | | | Details |
| L/Cret | Lower Cretaceous | | | | Details |
| L/D | Laydown (at rigsite) | | | | Details |
| L/D | Lay Down (ablegen) | | | | Details |
| L/D | Lay down | | | | Details |
| L/F2 | pound per square foot | | | | Details |
| L/F3 | pound per cubic foot | | | | Details |
| L/h | liter per hour | | | | Details |
| L/kg | liter per kilogram | | | | Details |
| L/KG | liter per kilogram | | | | Details |
| L/m3 | liter per cubic meter | | | | Details |
| L/M3 | liter per cubic meter | | | | Details |
| L/min | liter per minute | | | | Details |
| L/O | Lay out | | | | Details |
| L/S | liter per stroke | | | | Details |
| L/Tus | Lower Tuscaloosa | | | | Details |
| L004 | Resistivity 2.5x2.5cm BKS/MLW | | | | Details |
| L004_DS | Resistivity Depth shifted 2.5x2.5 cm BKS/MLW | | | | Details |
| L006 | Resistivity 2.5x5cm BKS/MLW | | | | Details |
| L008 | Resistivity 2x7cm BKS | | | | Details |
| L009 | Resistivity 2.5x7.5cm BKS/MLW | | | | Details |
| L009_DS | Resistivity Depth shifted 2.5x7.5 cm BKS/MLW | | | | Details |
| L010 | Resistivity 7x7cm BKS | | | | Details |
| L015 | Resistivity 4x13cm BKS | | | | Details |
| L016 | Resistivity 2x15cm BKS | | | | Details |
| L025 | Resistivity BKS M0.2A0.1B | | | | Details |
| L027 | Resistivity 7x23cm BKS | | | | Details |
| L035 | Resistivity BKS M0.3A0.1B | | | | Details |
| L065 | Resistivity BKS M0.6A0.1B | | | | Details |
| L067 | Resistivity BKS A0.6M0.125N | | | | Details |
| L070 | Resistivity BKS M0.65A0.1B | | | | Details |
| L095 | Resistivity BKS M0.9A0.1B | | | | Details |
| L1 | Processed VSP signal 1 (level 1 data) | | | | Details |
| L122 | Resistivity BKS M1.1A0.25B | | | | Details |
| L155 | Resistivity BKS M1.5A0.1B | | | | Details |
| L156 | Resistivity BKS A1.5M0.125N | | | | Details |
| L162 | Resistivity BKS M1.5A0.25B | | | | Details |
| L1VF | Low Calibration VFC Channel 1 Grad | | | | Details |
| L1VF_TL | Low Calibration VFC Channel 1 Gradio | | | | Details |
| L2 | Processed VSP signal 2 | | | | Details |
| L212 | Resistivity BKS M2A0.25B | | | | Details |
| L2VF | Low Calibration VFC Channel 2 Manometer | | | | Details |
| L2VF_TL | Low Calibration VFC Channel 2 Manometer | | | | Details |
| L3 | Processed VSP signal 3 | | | | Details |
| L312 | Resistivity BKS A3.0M0.250N | | | | Details |
| L315 | Resistivity BKS M3A0.3B | | | | Details |
| L3VF | Low Calibration VFC Channel 3 Manometer | | | | Details |
| L3VF_TL | Low Calibration VFC Channel 3 Manometer | | | | Details |
| L4 | Processed VSP signal 4 | | | | Details |
| L412 | Resistivity BKS M4A0.25B | | | | Details |
| L425 | Resistivity BKS M4A0.25B | | | | Details |
| L4VF | Low Calibration VFC Channel 4 Well | | | | Details |
| L4VF_TL | Low Calibration VFC Channel 4 Well | | | | Details |
| L5 | Processed VSP signal 5 | | | | Details |
| L5VF | Low Calibration VFC Channel 5 Gradio | | | | Details |
| L5VF_TL | Low Calibration VFC Channel 5 Gradio | | | | Details |
| L6 | Processed VSP signal 6 | | | | Details |
| L625 | Resistivity BKS M6A0.5B | | | | Details |
| L635 | Resistivity BKS M6A0.7B | | | | Details |
| L650 | Resistivity BKS M6A1.0B | | | | Details |
| L7 | Processed VSP signal 7 | | | | Details |
| L8 | Processed VSP signal 8 | | | | Details |
| L825 | Resistivity BKS M8A0.5B | | | | Details |
| L850 | Resistivity BKS M8A1B | | | | Details |
| L9 | Processed VSP signal 9 | | | | Details |
| LA | Laufende|| | Ongoing | laufend | En cours | Details |
| LA | Laufende Behandlungen|| | Ongoing treatments | Laufende Behandlungen | traitements en cours | Details |
| LA | LAOS | | | | Details |
| lA | Iowa | | | | Details |
| LA | Louisiana | | | | Details |
| LA | level alarm | | | | Details |
| LA | lightning arrester | | | | Details |
| LA | load acid | | | | Details |
| La | Mte La Motte | | | | Details |
| LA | Laufende | ongoing operation or may refer to well intervention | | | Details |
| LA | Laufende Behandlungen | Well Intervention | | | Details |
| LA | Lagerstätteart | Reservoir Type (oil / gas) | | | Details |
| LA | Large Arm Caliper | | | | Details |
| LA | Light and special Alloy (e.g. Cupronickel) | | | | Details |
| LA1D | Low Pressure Additive #1 Density | | | | Details |
| LA2D | Low Pressure Additive #2 Density | | | | Details |
| LA32 | Lateral Resistivity (32 inch spacing) | | | | Details |
| LA37 | Lateral Resistivity (37 inch spacing) | | | | Details |
| LA3D | Low Pressure Additive #3 Density | | | | Details |
| LA4D | Low Pressure Additive #4 Density | | | | Details |
| lab | labor | | | | Details |
| lab | laboratory | | | | Details |
| LACK | Percentage of Lacking Metal | | | | Details |
| LACT | Lease Automatic Custody Transfer | | | | Details |
| LACT | lease automatic custody transfer unit A calibrated measurement device used as an official sales point for crude oil transfer into a second party pipeline | | | | Details |
| LAD | Logging After Drilling | | | | Details |
| lad | ladder | | | | Details |
| LAE | Laufende Behandlungen Energize|| | Ongoing treatments Energize | Laufende Behandlungen Energize | traitements en cours Energize | Details |
| LAE | Laufende Behandlungen Energize | Well Intervention - specifically looked for other potentials | | | Details |
| LAER | Lowest Achievable Emission Rate | | | | Details |
| LAFB | Libyan Arab Foreign Bank | | | | Details |
| LAG | lagging | | | | Details |
| LAH | Lookahead | | | | Details |
| LAH | Logging Adapter Head | | | | Details |
| LAH | Logging Adapter Head | | | | Details |
| LAIC | Libyan Arab Investment Company | | | | Details |
| Lak | Lakota | | | | Details |
| LAK | Lao Kip | | | | Details |
| LAK | Lao kip | | | | Details |
| lam | laminated. laminations | | | | Details |
| lam | laminated, lamination(s) | | | | Details |
| lam | laminated | | | | Details |
| LAMB | Interporosity Flow Coefficient (Lambda) | | | | Details |
| lams | laminations | | | | Details |
| LAN | local area network | | | | Details |
| Land | Landulina | | | | Details |
| Lans | Lansing | | | | Details |
| LAO | LAOS | | | | Details |
| LAOT | Linear Activation Override Tool | | | | Details |
| Lapco | Lavan Petroleum Company | | | | Details |
| Lar | Laramie | | | | Details |
| LARS | Launch & Recovery System | | | | Details |
| LAS | lower anhydrite stringer | | | | Details |
| LAS | Log ASCII Standard (a kind of ascii file used in petroleum industry) | | | | Details |
| las | LAS Log Format | | | | Details |
| LAS | Low Alloy Steel | | | | Details |
| LASH | Light Aboard SHip | | | | Details |
| LASMO | LASMO plc (London & Scottish Marine Oil Co.) UK | | | | Details |
| LASR | Laser Log | | | | Details |
| LAT | Lowest Astronomical Tide | | | | Details |
| LAT | LATitude | | | | Details |
| LAT | Resistivity 18ft 8in Lateral | | | | Details |
| LAT | laterolog | | | | Details |
| LAT | Lateral Resistivity (18-ft 8-in spacing) | | | | Details |
| LAT1 | Logarithm of Amplitude For Transducer 1 | | | | Details |
| LAT2 | Logarithm of Amplitude For Transducer 2 | | | | Details |
| LAT3 | Logarithm of Amplitude For Transducer 3 | | | | Details |
| LAT4 | Logarithm of Amplitude For Transducer 4 | | | | Details |
| LAT5 | Logarithm of Amplitude For Transducer 5 | | | | Details |
| LAT6 | Logarithm of Amplitude For Transducer 6 | | | | Details |
| LAT7 | Logarithm of Amplitude For Transducer 7 | | | | Details |
| LAT8 | Logarithm of Amplitude For Transducer 8 | | | | Details |
| LAT9 | Logarithm of Amplitude For Transducer 9 | | | | Details |
| latc | lateritic | | | | Details |
| LATI | North displacement(- = South) (Directional UNKNOWN | | | | Details |
| LATL | Lateral | | | | Details |
| LATM | Lower Attenuation from Module | | | | Details |
| LATT | Lower Attenuation from Tool | | | | Details |
| Laud | Lauders | | | | Details |
| LAUF | lost and unaccounted for gas | | | | Details |
| lav | lavender | | | | Details |
| LAV0 | Average Amplitude of LIFT Signal | | | | Details |
| LAV0_DL | Average Amplitude of LIFT Signal | | | | Details |
| LAV1 | Average Amplitude of LIFT Signal | | | | Details |
| LAV1_DL | Average Amplitude of LIFT Signal | | | | Details |
| LAV2 | Average Amplitude of LIFT Signal | | | | Details |
| LAV2_DL | Average Amplitude of LIFT Signal | | | | Details |
| LAV3 | Average Amplitude of LIFT Signal | | | | Details |
| LAV3_DL | Average Amplitude of LIFT Signal | | | | Details |
| LAV4 | Average Amplitude of LIFT Signal | | | | Details |
| LAV4_DL | Average Amplitude of LIFT Signal | | | | Details |
| LAV5 | Average Amplitude of LIFT Signal | | | | Details |
| LAV5_DL | Average Amplitude of LIFT Signal | | | | Details |
| LAY | Layers of Curves (Synthetic Log from | | | | Details |
| LAYCAN | LAYday CANcelling date | | | | Details |
| LAYR | Multi-Layer Testing | | | | Details |
| Layt | Layton | | | | Details |
| LB | LEBANON | | | | Details |
| lb | pounds | | | | Details |
| LB | light barrel | | | | Details |
| lb | pound | | | | Details |
| LB | LaBomba 1060 | | | | Details |
| LB | pound mass (avoirdupois) | | | | Details |
| LB-1 | inverse pound | | | | Details |
| lb-in. | pound-inch | | | | Details |
| LB/D | pound mass per day | | | | Details |
| LB/F | pound mass per foot | | | | Details |
| lb/ft | pounds per foot | | | | Details |
| lb/ft | pound mass per foot (GeoFrame legacy unit) | | | | Details |
| lb/ft3 | pounds per cubic foot | | | | Details |
| lb/ft3 | GeoFrame legacy unit | | | | Details |
| LB/G | pound per gallon | | | | Details |
| lb/hr | pounds per hour | | | | Details |
| LB/M | pound per minute | | | | Details |
| lb/sq | ft pounds per square foot | | | | Details |
| lb/ton | coke burn-off | | | | Details |
| lb/U.S.gal | GeoFrame legacy unit | | | | Details |
| lb/yr | pounds per year | | | | Details |
| LB10 | LaBomba 1370 | | | | Details |
| LB11 | LaBomba 1375 | | | | Details |
| LB13 | LaBomba 1459 | | | | Details |
| LB2 | LaBomba 1062 | | | | Details |
| LB3 | LaBomba 1081 | | | | Details |
| LB4 | LaBomba 1082 | | | | Details |
| LB5 | LaBomba 1083 | | | | Details |
| LB6 | LaBomba 1184 | | | | Details |
| LB7 | LaBomba 1365 | | | | Details |
| LB8 | LaBomba 1447 | | | | Details |
| LB9 | LaBomba 1369 | | | | Details |
| LBC | Lohrenz-Bray-Clark | | | | Details |
| LBC0 | Bubble Count Holdup | | | | Details |
| LBC0_DL | Bubble Count Holdup | | | | Details |
| LBC1 | Bubble Count Holdup | | | | Details |
| LBC1_DL | Bubble Count Holdup | | | | Details |
| LBC2 | Bubble Count Holdup | | | | Details |
| LBC2_DL | Bubble Count Holdup | | | | Details |
| LBC3 | Bubble Count Holdup | | | | Details |
| LBC3_DL | Bubble Count Holdup | | | | Details |
| LBC4 | Bubble Count Holdup | | | | Details |
| LBC4_DL | Bubble Count Holdup | | | | Details |
| LBC5 | Bubble Count Holdup | | | | Details |
| LBC5_DL | Bubble Count Holdup | | | | Details |
| LBF | pound force | | | | Details |
| lbf | pound force | | | | Details |
| lbf-1 | GeoFrame legacy unit | | | | Details |
| lbf.ft | GeoFrame legacy unit | | | | Details |
| lbf.s/ft2 | pound-second per square foot | | | | Details |
| lbf/100ft2 | pound per hundred square feet | | | | Details |
| lbf/ft2 | pound per hundred square feet | | | | Details |
| lbf/lbf | pound force per pound force | | | | Details |
| LBLB | pound force per pound force | | | | Details |
| lbm | pound mass (avoirdupois) | | | | Details |
| lbm-1 | GeoFrame legacy unit | | | | Details |
| lbm.ft | GeoFrame legacy unit | | | | Details |
| lbm/(ft.a) | pound mass per foot per year | | | | Details |
| lbm/(ft.s) | pound mass per foot per second | | | | Details |
| lbm/(ft2.a) | pound mass per square foot per year | | | | Details |
| lbm/(ft2.s) | pound mass per square foot per second | | | | Details |
| lbm/bbl | pound per barrel | | | | Details |
| lbm/d | pound mass per day | | | | Details |
| LBM/FT | pound mass per foot | | | | Details |
| lbm/ft | pound mass per foot | | | | Details |
| lbm/ft2 | pound per hundred square feet | | | | Details |
| lbm/ft2 | pound per square foot | | | | Details |
| lbm/ft3 | pound per cubic foot | | | | Details |
| lbm/gal | pound per thousand gallons | | | | Details |
| lbm/gal | pound per gallon | | | | Details |
| lbm/min | pound per minute | | | | Details |
| LBN | LEBANON | | | | Details |
| LBO | Leveraged Buyout | | | | Details |
| LBOS | light brown oil stain | | | | Details |
| LBP | Lebanese Pound | | | | Details |
| LBPM | pound mass per meter | | | | Details |
| LBR | LIBERIA | | | | Details |
| lbr | lumber | | | | Details |
| lbs | pounds | | | | Details |
| LBY | LIBYA | | | | Details |
| LC | Low Case | | | | Details |
| LC | Lower Completion | | | | Details |
| LC | Level Controller | | | | Details |
| LC | Loading Capacity | | | | Details |
| LC | LostCone | | | | Details |
| LC | Letter of Credit | | | | Details |
| LC | SAINT LUCIA | | | | Details |
| LC | lease crude | | | | Details |
| LC | long coupling | | | | Details |
| LC | lost circulation | | | | Details |
| LC | lower casing | | | | Details |
| LC | lug cover type(5-gallon can) | | | | Details |
| LC01 | Local Computation 1 | | | | Details |
| LC02 | Local Computation 2 | | | | Details |
| LC03 | Local Computation 3 | | | | Details |
| LC04 | Local Computation 4 | | | | Details |
| LC05 | Local Computation 5 | | | | Details |
| LC06 | Local Computation 6 | | | | Details |
| LC07 | Local Computation 7 | | | | Details |
| LC08 | Local Computation 8 | | | | Details |
| LC09 | Local Computation 9 | | | | Details |
| LC10 | Local Computation 10 | | | | Details |
| LC11 | Local Computation 11 | | | | Details |
| LC12 | Local Computation 12 | | | | Details |
| LC13 | Local Computation 13 | | | | Details |
| LC14 | Local Computation 14 | | | | Details |
| LC15 | Local Computation 15 | | | | Details |
| LC16 | Local Computation 16 | | | | Details |
| LC17 | Local Computation 17 | | | | Details |
| LC18 | Local Computation 18 | | | | Details |
| LC19 | Local Computation 19 | | | | Details |
| LC20 | Local Computation 20 | | | | Details |
| LC21 | Local Computation 21 | | | | Details |
| LC22 | Local Computation 22 | | | | Details |
| LC23 | Local Computation 23 | | | | Details |
| LC24 | Local Computation 24 | | | | Details |
| LC25 | Local Computation 25 | | | | Details |
| LC26 | Local Computation 26 | | | | Details |
| LC27 | Local Computation 27 | | | | Details |
| LC28 | Local Computation 28 | | | | Details |
| LC29 | Local Computation 29 | | | | Details |
| LC30 | Local Computation 30 | | | | Details |
| LC31 | Local Computation 31 | | | | Details |
| LC32 | Local Computation 32 | | | | Details |
| LC33 | Local Computation 33 | | | | Details |
| LC34 | Local Computation 34 | | | | Details |
| LC35 | Local Computation 35 | | | | Details |
| LC36 | Local Computation 36 | | | | Details |
| LC37 | Local Computation 37 | | | | Details |
| LC38 | Local Computation 38 | | | | Details |
| LC39 | Local Computation 39 | | | | Details |
| LC40 | Local Computation 40 | | | | Details |
| LCA | SAINT LUCIA | | | | Details |
| LCA | leakoff control acid | | | | Details |
| LCA | life-cycle assessment | | | | Details |
| LCAL | LDS Caliper | | | | Details |
| LCB | Low Carbon Business | | | | Details |
| LCC | Lowest Closed Contour (it is a contour line which is just above the spill point) | | | | Details |
| LCC | Life Cycle Cost | | | | Details |
| LCC | Lambert Conformal Conic | | | | Details |
| LCC | Logging Company Code | | | | Details |
| LCCD | SPST Lower Chamber Current Depth | | | | Details |
| LCCL | Low CCL | | | | Details |
| LCF | low cycle fatigue|| | low cycle fatigue | LCF | fatigue oligocyclique | Details |
| LCF | Latest Cost Factor | | | | Details |
| LCF | low cycle fatigue | | | | Details |
| LCF | Lump Cutoff Flag | | | | Details |
| LCF2 | pound per hundred square feet | | | | Details |
| LCGF | Seismic Low Cut Geophone Filter | | | | Details |
| LCGO | light coker gas oil | | | | Details |
| lchd | leached | | | | Details |
| LCI | SPST Lower Chamber Indicator | | | | Details |
| LCIX | Localized Corrosion Index X | | | | Details |
| LCIY | Localized Corrosion Index Y | | | | Details |
| LCIZ | Localized Corrosion Index Z | | | | Details |
| LCL | less-than carload lot | | | | Details |
| LCL | local | | | | Details |
| LCM | Lost Circulation Material | | | | Details |
| LCM | lost circulation materials | | | | Details |
| LCNLG | LDT CNL Gamma Ray Log | | | | Details |
| LCO | Light Crude Oil | | | | Details |
| LCOc1 | Light Crude Oil contract (future contract) | | | | Details |
| LCOE | levelized cost of electricity | | | | Details |
| LCP | leakage in closed position | | | | Details |
| LCP | local control panel | | | | Details |
| LCP | lug cover with pour spout | | | | Details |
| LCP | SPST Lower Chamber Pressure | | | | Details |
| LCPF | Continuous Phase Flag | | | | Details |
| LCPF_DL | Continuous Phase Flag | | | | Details |
| LCQR | HRDD Crystal Quality resolution from Long | | | | Details |
| LCR | Lowest Current Rate | | | | Details |
| LCR | Lowest Conductivity Reading Per 1/2 FT | | | | Details |
| LCRA | Centralizer Radius | | | | Details |
| LCRA_DL | Centralizer Radius | | | | Details |
| LCRX | RX Raw | | | | Details |
| LCRY | RY Raw | | | | Details |
| LCRZ | RZ Raw | | | | Details |
| LCSW_SLDT | SLDT Long Spacing Composite Status Word | | | | Details |
| LCTD | last crystal to dissolve | | | | Details |
| LCUT | Cutoff Flag for Output SDF (LUMP) | | | | Details |
| LCV | Liquid Control Valve | | | | Details |
| LCV | Level Control Valve (like the actuator on the separator) | | | | Details |
| LCV | level control valve | | | | Details |
| LD | Layer Depth | | | | Details |
| LD | Lay Down (tubing, rods, etc.) | | | | Details |
| LD | Liquidated Damages | | | | Details |
| LD | lay down | | | | Details |
| LD | laid down | | | | Details |
| ld | load | | | | Details |
| LD | Lower Drain | | | | Details |
| LD | Line Drive (injection pattern of wells) | | | | Details |
| ld(s) | land(s) | | | | Details |
| LDAR | Leak Detection and Repair | | | | Details |
| LDAT | Lumped Data for Output SDF (LUMP) | | | | Details |
| LDC | local distribution companies | | | | Details |
| LDC | laid-down cost | | | | Details |
| LDC | local distribution company | | | | Details |
| LDCA | LINC Downhole Coupler Assembly | | | | Details |
| LDCG | Casing Groningen Corrected Deep | | | | Details |
| LDCL | LDS Long-Spaced Control Loop Controller | | | | Details |
| LDCS | LDS Short-Spaced Control Loop Controller | | | | Details |
| LDCX | lead drill collar | | | | Details |
| LDDCs | laid(laying) down drill collars | | | | Details |
| LDDP | laid(laying) down drillpipe | | | | Details |
| LDE | Local Displacement Efficiency | | | | Details |
| LDFF | LDS Long-Spaced Downhole Form Factor | | | | Details |
| LDFL | large-diameter flow line | | | | Details |
| LDFN | lay down for night | | | | Details |
| LDG | landing | | | | Details |
| LDG | loading | | | | Details |
| LDHI | Low dose hydrate inhibitors | | | | Details |
| LDHI | Low Dosage Hydrate Inhibitor | | | | Details |
| LDIA | Long Axis Ultrasonic Caliper | | | | Details |
| LDIR | Largest pipe defect indicator from radii | | | | Details |
| LDIT | Largest pipe defect indicator from | | | | Details |
| LDL | Litho Density Log | | | | Details |
| LDL | Lithology Density Log | | | | Details |
| LDMM | Depth Drive Minus Measurement | | | | Details |
| LDMT | depth drive minus meas. time output table | | | | Details |
| LDN | LaDeN | | | | Details |
| LDP | Large Diameter Probe | | | | Details |
| LDPE | Low Density Polyethylene | | | | Details |
| LDPM | Depth Drive Plus Measurement | | | | Details |
| LDPT | depth drive plus meas. time output table | | | | Details |
| LDQC | LDS Density Quality Indicator | | | | Details |
| LDR | loader | | | | Details |
| LDS | Lock Down Sleeve (drilling riser) | | | | Details |
| LDS | Litho Density Sonde | | | | Details |
| LDs | Liquidated Damages | | | | Details |
| LDS | Litho Density Sonde (for IPLT) | | | | Details |
| LDSS | LDS Acquisition Status Word | | | | Details |
| LDSW_SLDT | SLDT Long Spacing Detector Status | | | | Details |
| LDT | Litho Density | | | | Details |
| LDT | Litho-Density | | | | Details |
| LDT | Litho Density Tool | | | | Details |
| LDTEP | LDT EPT Gamma Ray Log | | | | Details |
| LDTL | Long Spacing Delta-T Long | | | | Details |
| LDTS | LDS Tool State | | | | Details |
| LDV | light duty vehicles | | | | Details |
| LE | LEBANON | | | | Details |
| LE | Latest Estimates | | | | Details |
| Le C | Le Comptom | | | | Details |
| Leadv | Leadville | | | | Details |
| LEAKL | Leak Detection Log | | | | Details |
| LED | FA Gas Detector IRED Monitor | | | | Details |
| LEDN | Lower cutoff on EDN | | | | Details |
| LEF1 | Sketch String #1 Left Side | | | | Details |
| LEF2 | Sketch String #2 Left Side | | | | Details |
| LEF3 | Sketch String #3 Left Side | | | | Details |
| LEF4 | Sketch String #4 Left Side | | | | Details |
| LEF5 | Sketch String #5 Left Side | | | | Details |
| LEH-MT | Logging Equipment Head with Tension and Mud Temperature | | | | Details |
| LEH-T | Logging Equipment Head with Tension | | | | Details |
| LEI | Lower Ejector Indicator | | | | Details |
| LeistArt | Leistungsart | | | | Details |
| LEL | Lowest Explosive Limit (lowest concentration of gas in air which will explode upon ignition. Below the LEL, the mixture is too lean) | | | | Details |
| LEL | lower explosive limit | | | | Details |
| LEL | Limited Entry Liner | | | | Details |
| Len | Lennep | | | | Details |
| len | lenticular | | | | Details |
| Lens | a permeable, often small sedimentary deposit bordered by impermeable rock | | | | Details |
| LEP | Laboratory for Exploration and Production | | | | Details |
| LEPRE | Litho-Elastic Property Report | | | | Details |
| LET | Liquid Evaluations Tests | | | | Details |
| LETs | Liquid Evaluations Tests | | | | Details |
| LF | Low Frequency | | | | Details |
| LF2Y | pound mass per square foot per year | | | | Details |
| LFA | Laufende|| | Ongoing | laufend | En cours | Details |
| LFA | Live Fluid Analyzer | | | | Details |
| LFA | Laufende | ongoing operation or may refer to well intervention | | | Details |
| LFAZ | Lost Fast Acceleration on Z Axis | | | | Details |
| LFI | Learning from Incidents | | | | Details |
| LFL | Lower Flammability Limit | | | | Details |
| LfL | Like for Like | | | | Details |
| LfL | Like for Like (the same item with the same properties) | | | | Details |
| LFO | light fuel oil | | | | Details |
| LFOF | Low Frequency Spectrum Offset | | | | Details |
| LFPX | Low Frequency Phase Before Wrap | | | | Details |
| LFR0 | Label Flag, Receiver Array - SDT Stoneley | | | | Details |
| LFR1 | Label Flag, Receiver Array - Lower Dipole | | | | Details |
| LFR2 | Label Flag, Receiver Array - Upper Dipole | | | | Details |
| LFR3 | Label Flag, Receiver Array - Monopole | | | | Details |
| LFRE | Larmor Frequency | | | | Details |
| LFREX | LABEL Flag, Receiver Array - Expert Mode | | | | Details |
| LFRP | Label Flag, Receiver Array, Compressional | | | | Details |
| LFRS | Label Flag, Receiver Array, Shear - | | | | Details |
| LFT0 | Label Flag, Transmitter Array - SDT | | | | Details |
| LFT1 | Label Flag, Transmitter Array - Lower | | | | Details |
| LFT2 | Label Flag, Transmitter Array - Upper | | | | Details |
| LFT3 | Label Flag, Transmitter Array - Monopole | | | | Details |
| LFTEX | LABEL Flag, Transmitter Array - Expert | | | | Details |
| LFTP | Label Flag, Transmitter Array, | | | | Details |
| LFTS | Label Flag, Transmitter Array, Shear - | | | | Details |
| LFV1 | Logging Fluid Voltage 1 (RA1 - RB1) | | | | Details |
| LFV2 | Logging Fluid Voltage 2 (RB1 - RC) | | | | Details |
| LFV3 | Logging Fluid Voltage 3 (RC - RD) | | | | Details |
| LFV4 | Logging Fluid Voltage 4 (RA1 - RA2) | | | | Details |
| LFV5 | Logging Fluid Voltage 5 (RB1 - RB2) | | | | Details |
| LFY | Last Fiscal Year | | | | Details |
| LFY | pound mass per foot per year | | | | Details |
| LG | Lift Gas|| | Lift gas | Liftgas | gaz Ascenseur | Details |
| LG | LATVIA | | | | Details |
| lg | large | | | | Details |
| lg | length | | | | Details |
| lg | level glass | | | | Details |
| lg | long | | | | Details |
| Lg | Disc Large Discorbis | | | | Details |
| LG | Lift Gas | Lifting Gas | | | Details |
| lg | Liebe Grüße | | | | Details |
| LGA | Liberated Gas Average (equal to the background gas) | | | | Details |
| LGA | Laboratoire de Geophysique Applique Algeria | | | | Details |
| LGA0 | Gain | | | | Details |
| LGA0_DL | Gain | | | | Details |
| LGA1 | Gain | | | | Details |
| LGA1_DL | Gain | | | | Details |
| LGA2 | Gain | | | | Details |
| LGA2_DL | Gain | | | | Details |
| LGA3 | Gain | | | | Details |
| LGA3_DL | Gain | | | | Details |
| LGA4 | Gain | | | | Details |
| LGA4_DL | Gain | | | | Details |
| LGA5 | Gain | | | | Details |
| LGA5_DL | Gain | | | | Details |
| LGD | Lower Glen Dean | | | | Details |
| Lge | league | | | | Details |
| LGM | Lead Group Member | | | | Details |
| LGO | Light Gas Oil | | | | Details |
| LGP | Liberated Gas Produced | | | | Details |
| LGR | Liquid Gas Ratio | | | | Details |
| LGR | Local Grid Refinement | | | | Details |
| LGR | Liquid Gas Recovery | | | | Details |
| LGR | Local Grid Refinement | | | | Details |
| LGR | Liquids to Gas Ratio | | | | Details |
| LGR | Gamma Ray Lower Detector | | | | Details |
| LGS | Low (specific)Gravity Solids | | | | Details |
| LGS | Low Gravity Solids in mud | | | | Details |
| LGSC | Liquified Gas Shipping Co. Abu Dhabi | | | | Details |
| LGT | LenGThened | | | | Details |
| lgv | Log File | | | | Details |
| LH | Left Hand | | | | Details |
| LH | Liner Hanger | | | | Details |
| LH | LITHUANIA | | | | Details |
| LH/RP | long handle/round point | | | | Details |
| LHCG | Casing Groningen Corrected High | | | | Details |
| LHCIP | Liquid Hydrocarbon In Place | | | | Details |
| LHCOIP | Liquid Hydrocarbon Originally In Place | | | | Details |
| LHD | Low Head Drilling (a type of MPD that formation fluid is not produced to surface) | | | | Details |
| LHDD_SLDT | SLDT Long Spacing HV DAC Diagnostic | | | | Details |
| LHFF_SLDT | SLDT Long Spacing HV Form Factor | | | | Details |
| LHLS_SLDT | SLDT Long Spacing HV Loop Status | | | | Details |
| LHMO_SLDT | SLDT Long Spacing HV Monitor | | | | Details |
| LHRC_SLDT | SLDT Long Spacing HV Reference Channel | | | | Details |
| LHS | Left Hand Side | | | | Details |
| LHS | Lower Hand Side | | | | Details |
| LHSP_SLDT | SLDT Long Spacing HV Set Point | | | | Details |
| LHT | Left Hand Turn | | | | Details |
| LHTE | Horizontal Tool Eccentralization | | | | Details |
| LHTE_DL | Horizontal Tool Eccentralization | | | | Details |
| LHVD | Long Spacing Downhole High Voltage CCS | | | | Details |
| LHVL | LDS Long-Spaced High Voltage Setting | | | | Details |
| LHVS | LDS Short-Spaced High Voltage Setting | | | | Details |
| LHW0 | Water Holdup | | | | Details |
| LHW0_DL | Water Holdup | | | | Details |
| LHW1 | Water Holdup | | | | Details |
| LHW1_DL | Water Holdup | | | | Details |
| LHW2 | Water Holdup | | | | Details |
| LHW2_DL | Water Holdup | | | | Details |
| LHW3 | Water Holdup | | | | Details |
| LHW3_DL | Water Holdup | | | | Details |
| LHW4 | Water Holdup | | | | Details |
| LHW4_DL | Water Holdup | | | | Details |
| LHW5 | Water Holdup | | | | Details |
| LHW5_DL | Water Holdup | | | | Details |
| LI | Liquidationen|| | liquidations | Liquidationen | liquidations | Details |
| LI | LIBERIA | | | | Details |
| LI | LIECHTENSTEIN | | | | Details |
| LI | level indicator | | | | Details |
| LI | Limestone Device | | | | Details |
| LI | Liquidationen | Plug & Abandon the well | | | Details |
| LI | Lithology Index | | | | Details |
| LI | Log Interpretation | | | | Details |
| LIAX | Axial Current L | | | | Details |
| LIB | Lead Impression Block (see comment) | | | | Details |
| LIB | lead impression block | | | | Details |
| LIB | light iron barrel | | | | Details |
| LIB | Impression tool (Lead Impression Block) | | | | Details |
| LIBOR | London Interbank Offered Rate | | | | Details |
| LIC | level indicator controller | | | | Details |
| lic | license | | | | Details |
| LICD | Lybyrinth ICD | | | | Details |
| LIE | LIECHTENSTEIN | | | | Details |
| Lieb | Liebuscella | | | | Details |
| LIER | DIT-E Length of Invasion (from ER Phasor) | | | | Details |
| LIF | Land of Israel Front | | | | Details |
| LIFFE | London International Financial Futures and Options Exchange | | | | Details |
| LIFO | Last In, First Out | | | | Details |
| lig | lignite , lignite | | | | Details |
| lig | lignite, lignitic | | | | Details |
| LIGB | light iron grease barrel | | | | Details |
| LIH | Lost In Hole | | | | Details |
| LIH | Left in Hole | | | | Details |
| LII | Liquid Isotope Injector | | | | Details |
| LIK1 | Likeness Curve Quadrant 1 Frame-to-Frame | | | | Details |
| LIK2 | Likeness Curve Quadrant 2 Frame-to-Frame | | | | Details |
| LIK3 | Likeness Curve Quadrant 3 Frame-to-Frame | | | | Details |
| LIK4 | Likeness Curve Quadrant 4 Frame-to-Frame | | | | Details |
| LIL | Log-Inject-Log | | | | Details |
| LILD | Induction Resistivity (LOGA.) | | | | Details |
| lim | limit, limonite | | | | Details |
| LIM | Limestone | | | | Details |
| LIMS | Laboratory Information Management System | | | | Details |
| lin | linear | | | | Details |
| lin | liner | | | | Details |
| lin | ft linear foot | | | | Details |
| LINC | Latched Inductive Coupling (SLB data Acquisition) | | | | Details |
| LINCO | Liner and Completion Progress Report | | | | Details |
| linkClarke | Link (Clarke) | | | | Details |
| LINUX | Linus torvalds UniX | | | | Details |
| LINV | Length Of Invasion | | | | Details |
| LIOG | Lithography Log | | | | Details |
| LIOGA | Louisiana Independent Oil & Gas Association | | | | Details |
| LIOM | HRDD IO Monitor Lamps from Long Spacing | | | | Details |
| LIP | local injections plants | | | | Details |
| LIP | Locked In Potential | | | | Details |
| LIPH | DIT-E Length of Invasion | | | | Details |
| liq | liquid | | | | Details |
| LIQ | Liquid Fraction | | | | Details |
| LIQF | Liquid Fraction | | | | Details |
| liqftn | liquefaction | | | | Details |
| LIRA | Logistic and Infrastructure Resource Assessment | | | | Details |
| LIS | Log Information Standard | | | | Details |
| LISA | Volume of Anhydrite, Salt, Sand, Limestone Volume_Fraction | | | | Details |
| LIT | Lead Impression Tool | | | | Details |
| LITDE | Litho Density Quicklook Log | | | | Details |
| LITER | liter | | | | Details |
| LITERS | liter | | | | Details |
| LITH | Li tho logy | | | | Details |
| LITH | Lithology | | | | Details |
| LITH | Litholog Window Count Rate | | | | Details |
| lithic | lithographic | | | | Details |
| litho | lithologic | | | | Details |
| litho | lithographic | | | | Details |
| LITHOF1_DPPV | Distance from previous lithofacies | | | | Details |
| LITHOF1_PROBA | Probability associated to the most likely | | | | Details |
| LITHOF2_PROBA | Probability computed for the second | | | | Details |
| LITHOSET_NAME | Set name: top level container of the | | | | Details |
| LITHOT1_PROBA | Probability associated with the most | | | | Details |
| LITHOT1_TYPE | Name of the likely lithotype | | | | Details |
| LITHR | Lithological Description Report | | | | Details |
| LITRE | Lithostratigraphy Report | | | | Details |
| LITRE | liter | | | | Details |
| LITST | Lithostratigraphic Log | | | | Details |
| LIVR | DIT-E Length of Invasion (from VR Phasor) | | | | Details |
| LJ | lap joint | | | | Details |
| LK | Linerkopf | | | | Details |
| LK | SRI LANKA | | | | Details |
| lk | leak | | | | Details |
| lk | lock | | | | Details |
| LK | Lithofacies Permeability | | | | Details |
| LK12 | Likeness Curve Comparing Quadrants 1 and 2 None | | | | Details |
| LK23 | Likeness Curve Comparing Quadrants 2 and 3 None | | | | Details |
| LK34 | Likeness Curve Comparing Quadrants 3 and 4 None | | | | Details |
| LK41 | Likeness Curve Comparing Quadrants 4 and 1 None | | | | Details |
| LKA | SRI LANKA | | | | Details |
| LKG | leakage | | | | Details |
| LKG | Lowest Known Gas | | | | Details |
| LKGL | pound per thousand gallons | | | | Details |
| LKH | Lowest Known Hydrocarbons (for determining SEC GIIP or *STOIIP) | | | | Details |
| LKH | Lowest Known Hydrocarbons | | | | Details |
| LKHC | Lowest-Known Hydrocarbons | | | | Details |
| LKK | linearer Korrelationskoeffizient (als Maß für die Exaktheit des lineraren Zusammenhanges). | | | | Details |
| LKM | Line Kilo Metre | | | | Details |
| LKMX | Maximum Likeness | | | | Details |
| LKO | Lowest Known Oil | | | | Details |
| LKO | Lowest Known Oil | | | | Details |
| LKP | Langwellenkreisel-Pumpen | | | | Details |
| LKPI | Local Key Performance Indicator | | | | Details |
| LKPI | Logistics Key Performance Indicator | | | | Details |
| LKR | locker | | | | Details |
| LKR | Sri Lanka Rupee | | | | Details |
| LKR | Sri Lanka rupee | | | | Details |
| lku | Lookup Data | | | | Details |
| LKV | Lower Kelly Valve | | | | Details |
| LKW | Lastkraftwagen | | | | Details |
| LL | Lessons Learnt | | | | Details |
| LL | Laterolog | | | | Details |
| LL | Long Lead | | | | Details |
| LL | Liquid Level | | | | Details |
| LL | Lifetime Log | | | | Details |
| Ll | Limestone Device | | | | Details |
| LL | Resistivity Laterolog | | | | Details |
| LL | Lessons Learned | | | | Details |
| LL | Long Lower Window Count Rate | | | | Details |
| LL GR-N | Laterlog-Gamma Ray-Neutron Log | | | | Details |
| LL&E | Louisiana Land & Exploration Co. | | | | Details |
| LL/GR | Laterolog-Gamma Ray | | | | Details |
| LL/GR/NEU | Laterolog-Gamma Ray-Neutron | | | | Details |
| LL/NEU | Laterolog-Neutron | | | | Details |
| LL3 | Laterolog 3 | | | | Details |
| LL3 | Laterolog | | | | Details |
| LL3 | Resistivity Laterolog 3 | | | | Details |
| LL3 | Laterolog 3 | | | | Details |
| LL7 | Resistivity Laterolog 7 | | | | Details |
| LL7 | Laterolog 7 | | | | Details |
| LL7N | Measure of LL7 Minus Sqrt(Sigma**2+Tau**2) Deep_Lateral_Resistivity | | | | Details |
| LL7P | Measure of LL7 Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| LL7T | Value of LL7 Which Would Have Been Read if Deep_Lateral_Resistivity | | | | Details |
| LL8 | Laterolog 8 | | | | Details |
| LL8A | Laterolog 8 Resistivity Averaged over 2.5 | | | | Details |
| LL8E | LL8 Error Correction | | | | Details |
| LL8N | Measure of LL8 Minus Sqrt(Sigma**2+Tau**2) Medium_Lateral_Resistivity | | | | Details |
| LL8P | Measure of LL8 Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| LL8R | LL8 Rectangular Log | | | | Details |
| LL8T | Value of LL8 Which Would Have Been Read if Medium_Lateral_Resistivity | | | | Details |
| LL8U | Laterolog 8 Resistivity Unaveraged | | | | Details |
| LLC | Limited Liability Company | | | | Details |
| LLC | liquid level controller | | | | Details |
| LLCH | Corrected High Resolution Resistivity | | | | Details |
| LLCL | Lower Limit of Clay | | | | Details |
| LLCU | APS Measured Load Leveler Voltage | | | | Details |
| LLD | Laterolog Deep | | | | Details |
| LLD | Resistivity Laterolog Deep | | | | Details |
| LLD | Laterolog Deep Resistivity | | | | Details |
| LLDC | Corrected Laterolog Deep Resistivity | | | | Details |
| LLDG | Groningen Phase Corrected Deep Resistivity Resistivity | | | | Details |
| LLDN | Measure of LLD Minus Sqrt(Sigma**2+Tau**2) Deep_Lateral_Resistivity | | | | Details |
| LLDP | Measure of LLD Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| LLDPE | Linear Low-Density Polyethylene | | | | Details |
| LLDR | LLD Rectangular Log | | | | Details |
| LLDT | Value of LLD Which Would Have Been Read if Deep_Lateral_Resistivity | | | | Details |
| LLdyn | Liquid Level dynamic | | | | Details |
| LLG | liquid level gauge | | | | Details |
| LLG | Laterolog Groningen Resistivity | | | | Details |
| LLHC | High Resolution Conductivity | | | | Details |
| LLHD | High Resolution Laterolog Deep Resistivity Deep_Lateral_Resistivity | | | | Details |
| LLHG | Groningen Phase Corrected High Resolution | | | | Details |
| LLHR | High Resolution Resistivity | | | | Details |
| LLHS | High Resolution Laterolog Shallow | | | | Details |
| LLI | Long Lead Items (such as casing, Xmas tree, …) | | | | Details |
| LLI | Long Lead Item | | | | Details |
| LLL1 | LDS Long-Spaced Raw Loop Window 1 Count | | | | Details |
| LLL2 | LDS Long-Spaced Raw Loop Window 2 Count | | | | Details |
| LLL3 | LDS Long-Spaced Raw Loop Window 3 Count | | | | Details |
| LLL4 | LDS Long-Spaced Raw Loop Window 4 Count | | | | Details |
| LLLL | LDS Long-Spaced LL Raw Window Count Rate | | | | Details |
| LLLS | LDS Long-Spaced LS Raw Window Count Rate | | | | Details |
| LLLU | LDS Long-Spaced LU Raw Window Count Rate | | | | Details |
| LLOD | Lowest Limit Of Detection | | | | Details |
| LLOS | APS Load Leveler Operating Set Point | | | | Details |
| LLP | Low-low Pressure | | | | Details |
| LLP | Low-low Pressure | | | | Details |
| LLP's | Long Lead Procurement? | | | | Details |
| LLRT | liquid level leak test | | | | Details |
| LLS | Resistivity Laterolog Shallow | | | | Details |
| LLS | Laterolog Shallow Resistivity | | | | Details |
| LLS1 | LDS Short-Spaced SS1 Raw Window Count Rate Count_Rate | | | | Details |
| LLS2 | LDS Short-Spaced SS2 Raw Window Count Rate Count_Rate | | | | Details |
| LLSC | Corrected Laterolog Shallow Resistivity | | | | Details |
| LLSP | Measure of LLS Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| LLSR | LLS Rectangular Log | | | | Details |
| LLST | Value of LLS Which Would Have Been Read if Shallow_Lateral_Resistivity | | | | Details |
| LLstat | Liquid Level Static | | | | Details |
| LLSW | APS Load Leveler Status Word | | | | Details |
| LLT | Low-low Temperature | | | | Details |
| LLT | Low-low Temperature | | | | Details |
| LLTH | LDS Long-Spaced LITH Raw Window Count Rate Count_Rate | | | | Details |
| LM | Line Manager | | | | Details |
| lm | limestone | | | | Details |
| lm | lime, limestone | | | | Details |
| LM | lumen | | | | Details |
| lm | lumen | | | | Details |
| LM1 | Short Line DC 0264 | | | | Details |
| LM2 | Short Line DC 0265 | | | | Details |
| LM3 | Leutert MG 3000 (ausgesch.) | | | | Details |
| LM4 | Leutert MG 4000 (ausgesch.) | | | | Details |
| LM5 | Short Line DC 1096 | | | | Details |
| LM6 | Short Line DC 1097 | | | | Details |
| LM7 | Short Line DC 1592 | | | | Details |
| LMAP | Location Map | | | | Details |
| LMAP | Maximum Aperture | | | | Details |
| LMAP_DL | Maximum Aperture | | | | Details |
| LMDM_SLDT | SLDT Long Spacing Detector Minus 6 V | | | | Details |
| LMDP_SLDT | SLDT Long Spacing Detector Plus 5 V | | | | Details |
| LME | London Metal Exchange | | | | Details |
| LMF | lowermost flange | | | | Details |
| LMF | Logging Measured From | | | | Details |
| LMG | Leutert Memory Gauge | Leutert comapny name | | | Details |
| LMGV | Lower Master Gate Valve | | | | Details |
| LMn | Lower Menard | | | | Details |
| lmn | limonitic | | | | Details |
| LMN0 | Min Level Signal | | | | Details |
| LMN0_DL | Min Level Signal | | | | Details |
| LMN1 | Min Level Signal | | | | Details |
| LMN1_DL | Min Level Signal | | | | Details |
| LMN2 | Min Level Signal | | | | Details |
| LMN2_DL | Min Level Signal | | | | Details |
| LMN3 | Min Level Signal | | | | Details |
| LMN3_DL | Min Level Signal | | | | Details |
| LMN4 | Min Level Signal | | | | Details |
| LMN4_DL | Min Level Signal | | | | Details |
| LMN5 | Min Level Signal | | | | Details |
| LMN5_DL | Min Level Signal | | | | Details |
| LMP | Liquid Mud Plant | | | | Details |
| LMP | last measured pressure | | | | Details |
| LMP5_SLDT | SLDT Long Spacing Plus 5 V PS Monitor | | | | Details |
| Lmpy | lumpy | | | | Details |
| LMR | Lower Marine Riser | | | | Details |
| LMRP | Lower Marine Riser Package | | | | Details |
| LMS | Limestone | | | | Details |
| LMS | Learning Management System | | | | Details |
| Lmst | Limestone | | | | Details |
| LMT1_SLDT | SLDT Long Spacing Test Point 1 Monitor | | | | Details |
| LMT2_SLDT | SLDT Long Spacing Test Point 2 Monitor | | | | Details |
| LMT3_SLDT | SLDT Long Spacing Test Point 3 Monitor | | | | Details |
| LMT4_SLDT | SLDT Long Spacing Test Point 4 Monitor | | | | Details |
| LMT5_SLDT | SLDT Long Spacing Test Point 5 Monitor | | | | Details |
| LMTD | log mean temperature difference | | | | Details |
| LMTP | Lamp Temperature | | | | Details |
| LMTP_SLDT | SLDT Long Spacing Tail Pulse Gen Monitor | | | | Details |
| LMV | Lower Master Valve (on an Xmas tree) | | | | Details |
| LMV | Lower Master Valve | | | | Details |
| LMVL | Lower Motor Voltage Limit | | | | Details |
| LMVL_DL | Lower Motor Voltage Limit | | | | Details |
| LMWL | Local Meteoric Water Line | | | | Details |
| LMX0 | Max Level Signal | | | | Details |
| LMX0_DL | Max Level Signal | | | | Details |
| LMX1 | Max Level Signal | | | | Details |
| LMX1_DL | Max Level Signal | | | | Details |
| LMX2 | Max Level Signal | | | | Details |
| LMX2_DL | Max Level Signal | | | | Details |
| LMX3 | Max Level Signal | | | | Details |
| LMX3_DL | Max Level Signal | | | | Details |
| LMX4 | Max Level Signal | | | | Details |
| LMX4_DL | Max Level Signal | | | | Details |
| LMX5 | Max Level Signal | | | | Details |
| LMX5_DL | Max Level Signal | | | | Details |
| lmy | limy | | | | Details |
| Lmy | sh limy shale | | | | Details |
| LN | Landenippel | | | | Details |
| LN | Lost Nozzle | | | | Details |
| LN | line | | | | Details |
| ln | logarithm(natural) | | | | Details |
| LN | Resistivity 64 in Normal | | | | Details |
| LN | Long Normal (64 inch spacing) | | | | Details |
| LNCR | Normalized Casing Resistance L | | | | Details |
| LND | Learning & Development | | | | Details |
| LNE | Laboratoire National d'Essais | | | | Details |
| LNERRD | Linear Least Square Fit Error - Downgoing | | | | Details |
| LNERRU | Linear Least Square Fit Error - Upgoing | | | | Details |
| LNFG | Output Line to Film Indicator | | | | Details |
| lnfo | information | | | | Details |
| LNFT-IA | liquid, no flow test, inside annulus | | | | Details |
| LNG | Liquified Natural Gas | | | | Details |
| LNG | Liquefied Natural Gas | | | | Details |
| LNG | see liquefied natural gas | | | | Details |
| LNGC | LNG Carrier | | | | Details |
| lngl | linguloid | | | | Details |
| LNINTD | Linear least square fit intercept of the | | | | Details |
| LNINTU | Linear least square fit intercept of the | | | | Details |
| Lnr | liner | | | | Details |
| lns | lense | | | | Details |
| LNSLPD | Linear least square fit slope of the peak | | | | Details |
| LNSLPU | Linear least square fit slope of the peak | | | | Details |
| LNUM | Lithofacies Number | | | | Details |
| LNV | Normalized Potential Difference L | | | | Details |
| LNVO | Normalized Potential Difference L | | | | Details |
| LO | SLOVAKIA (SLOVAK REPUBLIC) | | | | Details |
| LO | Load Oil | | | | Details |
| LO | lube oil | | | | Details |
| Lo Ho | Lower Hold | | | | Details |
| Lo/Hi-vis | Low and High Viscous mud used in conjunction with sea water in order to lift cuttings up to surface | | | | Details |
| LOA | Letter Of Approval, Letter Of Acceptance | | | | Details |
| LOA | Letter Of Application | | | | Details |
| LOA | Letter Of Award | | | | Details |
| LOA | Lenght Over All | | | | Details |
| LOA | Letter of Authorisation/Agreement/Authority | | | | Details |
| LOA | Letter of Acceptance | | | | Details |
| LOA | length overall | | | | Details |
| LOA | Letter of Authorisation | | | | Details |
| LOAM | Lowest Amplitude | | | | Details |
| LOC | Limiting oxygen concentration (see comment) | | | | Details |
| loc | location | | | | Details |
| loc | located, location | | | | Details |
| loc | abnd location abandoned | | | | Details |
| loc | gr location graded | | | | Details |
| loc | Location | | | | Details |
| Lock | a mechanism to hold a plug in a profile | | | | Details |
| LOD | Limit Of Detection | | | | Details |
| LOE | Lease Operating Expenses | | | | Details |
| LOEMST | Lebenölmessstation | Oil measuring station | | | Details |
| Loess | deposits of windborne dust | | | | Details |
| LOESST | Lebenölsammelstation | Oil gathering station | | | Details |
| LOF | Lloyd’s Open Form | | | | Details |
| LOF | List Of Field | | | | Details |
| LOF | Life of Field | | | | Details |
| LOF0 | Offset | | | | Details |
| LOF0_DL | Offset | | | | Details |
| LOF1 | Offset | | | | Details |
| LOF1_DL | Offset | | | | Details |
| LOF2 | Offset | | | | Details |
| LOF2_DL | Offset | | | | Details |
| LOF3 | Offset | | | | Details |
| LOF3_DL | Offset | | | | Details |
| LOF4 | Offset | | | | Details |
| LOF4_DL | Offset | | | | Details |
| LOF5 | Offset | | | | Details |
| LOF5_DL | Offset | | | | Details |
| LOFN | Noise in Low Frequency Spectrum | | | | Details |
| LOG | Logging Run | | | | Details |
| Log | a systematic recording of data from a well | | | | Details |
| log | logarithm(common) | | | | Details |
| log | Trace data | | | | Details |
| LOGDIR | Logging Direction Up or Down | | | | Details |
| LOGGN | Logging Whilst Drilling | | | | Details |
| LOGRS | Log Restoration Report | | | | Details |
| LOGSM | Log Sample | | | | Details |
| LOI | Letter Of Intend | | | | Details |
| LOI | Letter Of Indemnity. | | | | Details |
| LOI | Letter of Intent | | | | Details |
| LOK | Liner Oberkante | | | | Details |
| LOL | Laugh out loud | | | | Details |
| LOLER | Lifting Operations and Lifting Equipment Regulations | | | | Details |
| LOLO | Lift On Lift Off ship | | | | Details |
| LÖMST | Lebenölmessstation | Oil measuring station | | | Details |
| LÖMST | Lebendölmessstation | Metering Station | | | Details |
| long | longitude | | | | Details |
| long | longitude(inal) | | | | Details |
| LOOP | Lock Open | | | | Details |
| LOOP | Calibration Loop Amplitude | | | | Details |
| LOOP_SL | Calibration Loop Amplitude - Station Log | | | | Details |
| LOP | Lock Open Position | | | | Details |
| LOP | Leak Off Pressure | | | | Details |
| LOP | Leak Of Point | | | | Details |
| LOP | Leak-Off Pressure | | | | Details |
| LOPA | Layer of Protection Analysis | | | | Details |
| LOPC | Loss of Primary Containment | | | | Details |
| LOR | Letter Of Recommendation | | | | Details |
| LOR | Land Owner Royalty | | | | Details |
| LOR | Lindsey Oil Refinery Ltd. UK | | | | Details |
| LORA | Long Range, digital wireless data communication technology | | | | Details |
| LOS | lease operations | | | | Details |
| LOS | Latest on Site | | | | Details |
| Losal | low salt or fresher water | | | | Details |
| LÖSST | Lebenölsammelstation | Oil gathering station | | | Details |
| LÖSST | Lebendölsammelstelle | Oil gathering station | | | Details |
| LOT | Leak off test | | | | Details |
| LOT | Linear Override Tool | | | | Details |
| LOT | Lock Open Tool | | | | Details |
| LOT | Leak-Off Test | | | | Details |
| LOT | Load On Top | | | | Details |
| LOT | Leak off test. To determine formation strength. | | | | Details |
| LOTO | Lock Out / Tag Out | | | | Details |
| LOTT | Lowest Transit Time | | | | Details |
| Lov | Lovell | | | | Details |
| Lov | Lovington | | | | Details |
| LOW | Last Open Water | | | | Details |
| low | lower | | | | Details |
| LOWIS | Life Of Well Information Software | | | | Details |
| LOX | liquid oxygen | | | | Details |
| LP | Low Pressure | | | | Details |
| LP | Lokset-Packer | | | | Details |
| LP | Landing Point | | | | Details |
| LP | line pressure | | | | Details |
| LP | lodge pole | | | | Details |
| lp | loop | | | | Details |
| LP | sep low-pressure separator | | | | Details |
| LP | Linear Planning | | | | Details |
| LP | Loading Point | | | | Details |
| LP | Last Production | | | | Details |
| LP | Listprice | | | | Details |
| LP | Lineare Optimierung | | | | Details |
| LP | Linear Programming | | | | Details |
| LP | Low Pressure | | | | Details |
| LP | Low Pressure | | | | Details |
| LP-Gas | liquefied petroleum gas | | | | Details |
| LPA0 | Probe Azimuthal Position | | | | Details |
| LPA0_DL | Probe Azimuthal Position | | | | Details |
| LPA1 | Probe Azimuthal Position | | | | Details |
| LPA1_DL | Probe Azimuthal Position | | | | Details |
| LPA2 | Probe Azimuthal Position | | | | Details |
| LPA2_DL | Probe Azimuthal Position | | | | Details |
| LPA3 | Probe Azimuthal Position | | | | Details |
| LPA3_DL | Probe Azimuthal Position | | | | Details |
| LPA4 | Probe Azimuthal Position | | | | Details |
| LPA4_DL | Probe Azimuthal Position | | | | Details |
| LPA5 | Probe Azimuthal Position | | | | Details |
| LPA5_DL | Probe Azimuthal Position | | | | Details |
| LPC | Liquid Production Cumulative | | | | Details |
| LPDD_SLDT | SLDT Long Spacing PSC DAC Diagnostic | | | | Details |
| LPE | HLDS Weighted Average Photoelectric Factor Photoelectric_Factor | | | | Details |
| LPE | Litho-Petro Elastic inversion | | | | Details |
| LPFF_SLDT | SLDT Long Spacing PSC Form Factor | | | | Details |
| LPG | Liquefied Petroleum Gas | | | | Details |
| lPG | initial potential gas lift | | | | Details |
| LPG | propane | | | | Details |
| LPG | Liquified Petroleum Gas | | | | Details |
| LPG | Liquified Petroleum Gas | | | | Details |
| LPG | Flüssiggas | | | | Details |
| LPH | Litres Per Hour | | | | Details |
| LPHI | Lithofacies Porosity | | | | Details |
| LPLS_SLDT | SLDT Long Spacing PSC Loop Status | | | | Details |
| lpm | Liter Per Minute | | | | Details |
| LPO | local purchase order | | | | Details |
| LPP | Low Pressure Pilot | | | | Details |
| LPR | Lower Pipe Rams | | | | Details |
| LPR | Tester valves (Halliburton) | | | | Details |
| LPR | Low Permeability Reservoir | | | | Details |
| LPR0 | Probe Radial Position | | | | Details |
| LPR0_DL | Probe Radial Position | | | | Details |
| LPR1 | Probe Radial Position | | | | Details |
| LPR1_DL | Probe Radial Position | | | | Details |
| LPR2 | Probe Radial Position | | | | Details |
| LPR2_DL | Probe Radial Position | | | | Details |
| LPR3 | Probe Radial Position | | | | Details |
| LPR3_DL | Probe Radial Position | | | | Details |
| LPR4 | Probe Radial Position | | | | Details |
| LPR4_DL | Probe Radial Position | | | | Details |
| LPR5 | Probe Radial Position | | | | Details |
| LPR5_DL | Probe Radial Position | | | | Details |
| LPRA | Probe Radius | | | | Details |
| LPRA_DL | Probe Radius | | | | Details |
| LPRN | Tester valves (Halliburton) | | | | Details |
| LPS | LumPSum | | | | Details |
| LPS | low pressure separator | | | | Details |
| LPS | low-pressure separation | | | | Details |
| LPSA | laser particle size analysis | | | | Details |
| LPSD | laser particle size distribution | | | | Details |
| LPSG | Low Pressure Slick Gun | | | | Details |
| LPSP_SLDT | SLDT Long Spacing PSC Set Point | | | | Details |
| LPT | Low Pressure Test | | | | Details |
| LPWHH | Low Pressure Well Head Housing | | | | Details |
| LQ | PALMYRA ATOLL | | | | Details |
| LQ | Living Quarter | | | | Details |
| LQCL | Log Quality Control in Americium Lower | | | | Details |
| LQCRM | Log Quality Control Reference Manual | | | | Details |
| LQCU | Log Quality Control in Americium Upper | | | | Details |
| LQH0 | Quality Holdup | | | | Details |
| LQH0_DL | Quality Holdup | | | | Details |
| LQH1 | Quality Holdup | | | | Details |
| LQH1_DL | Quality Holdup | | | | Details |
| LQH2 | Quality Holdup | | | | Details |
| LQH2_DL | Quality Holdup | | | | Details |
| LQH3 | Quality Holdup | | | | Details |
| LQH3_DL | Quality Holdup | | | | Details |
| LQH4 | Quality Holdup | | | | Details |
| LQH4_DL | Quality Holdup | | | | Details |
| LQH5 | Quality Holdup | | | | Details |
| LQH5_DL | Quality Holdup | | | | Details |
| LQHC | Low quality hydrocarbons (i.e., tar sands and oil shale) | | | | Details |
| LQLS | LDS Long-Spaced Quality Indicator | | | | Details |
| LQQ | PALMYRA ATOLL | | | | Details |
| LQR | Low Quality Reservoir | | | | Details |
| LQSS | LDS Short-Spaced Quality Indicator | | | | Details |
| LQST | Log Quality Streamer | | | | Details |
| LQT | Liquid Fraction | | | | Details |
| LR | Lloyds Register of Shipping | | | | Details |
| LR | Large Range | | | | Details |
| LR | LIBERIA | | | | Details |
| LR | Legacy Rehost | | | | Details |
| LR | level recorder | | | | Details |
| LR | long radius | | | | Details |
| LR | LifeRaft | | | | Details |
| LRAP | long-range automation plan | | | | Details |
| LRAT | Low Frequency Amplitude Output | | | | Details |
| LRC | level recorder controller | | | | Details |
| LRCO | Contact Resistance L | | | | Details |
| LRD | Liberian Dollar | | | | Details |
| lrg | large | | | | Details |
| LRK | linearer Regression koeffizient (same as LKK) | | | | Details |
| LRMC | Long Run Marginal Cost|| | Long Run Marginal Cost | Long Run Marginal Cost | Long Run coût marginal | Details |
| LRMC | Long Run Marginal Cost | | | | Details |
| LROP | Inverse drilling strength indicator, a | | | | Details |
| LRP | Lower Riser Package | | | | Details |
| LRP | Low Resistivity Pay | | | | Details |
| LRP | long-range plan | | | | Details |
| LRP | Linear Rod Pump | | | | Details |
| LRRA | Lower Reference Receiver Amplitude | | | | Details |
| LRRP | Lower Reference Receiver Phase | | | | Details |
| LRT | LINC Running Tool (SLB data Acquisition) | | | | Details |
| LRTAP | Long-Range Transboundary Air Pollution | | | | Details |
| LRTC | LINC Running Tool Cartridge (SLB data Acquisition) | | | | Details |
| LRTL | LINC Running Tool Latch (SLB data Acquisition) | | | | Details |
| LS | Landing String (subsea completions) | | | | Details |
| LS | Long String (dual tubing) | | | | Details |
| LS | Lost Seal ( in an WFT job) | | | | Details |
| LS | Liner Shoe | | | | Details |
| LS | Least Squares | | | | Details |
| LS | Long String | | | | Details |
| LS | LIECHTENSTEIN | | | | Details |
| LS | LESOTHO | | | | Details |
| LS | low sulfur | | | | Details |
| ls | limestone | | | | Details |
| LS | Lost Circulation | | | | Details |
| LS | Lock Set | | | | Details |
| ls | limestone | | | | Details |
| LS | LagerStätte | Reservoir | | | Details |
| LS | LIMESTONE | | | | Details |
| LS | Linear Solver | | | | Details |
| LS | Long Spacing Computed Count Rate | | | | Details |
| LS01 | List Channel 1 For Completion, Options 1, | | | | Details |
| LS02 | List Channel 2 For Completion, Options 1, | | | | Details |
| LS03 | List Channel 3 For Completion, Options 1, | | | | Details |
| LS04 | List Channel 4 For Completion, Options 1, | | | | Details |
| LS05 | List Channel 5 For Completion, Options 1, | | | | Details |
| LS06 | List Channel 6 For Completion, Options 1, | | | | Details |
| LS07 | List Channel 7 For Completion, Options 1, | | | | Details |
| LS08 | List Channel 8 For Completion, Options 1, | | | | Details |
| LS09 | List Channel 9 For Completion, Options 1, | | | | Details |
| LS10 | List Channel 10 For Completion, Options 1, None | | | | Details |
| LS11 | List Channel 11 For Completion, Options 1, None | | | | Details |
| LSA | Low Specific Activity scale | | | | Details |
| LSA1 | Long Spacing Sonic Amplitude 1 | | | | Details |
| LSA2 | Long Spacing Sonic Amplitude 2 | | | | Details |
| LSA3 | Long Spacing Sonic Amplitude 3 | | | | Details |
| LSA4 | Long Spacing Sonic Amplitude 4 | | | | Details |
| LSAM | Lower Sample Open Valve Signal | | | | Details |
| LSAT_SLDT | SLDT Long Spacing Acquisition Time | | | | Details |
| LSBGR | Long Spacing BHC GR Log | | | | Details |
| LSBW | HRDD Calibrated and Borehole Corrected | | | | Details |
| LSC | Low Shear Coil | | | | Details |
| LSCC | LDS Long-Spaced Channel Control Word | | | | Details |
| LSCI | LINC Surface Computer Interface (SLB data Acquisition) | | | | Details |
| LSCP | LDS Long-Spaced Cesium Peak Location | | | | Details |
| LSCP_SLDT | Long Spacing Compensated Pulses | | | | Details |
| LSCS | LDS Long-Spaced Board Counter SLM Status | | | | Details |
| LSD | Lashed Secured Dunnage | | | | Details |
| LSD | Land Surface Datum | | | | Details |
| LSD | legal subdivision(Canada) | | | | Details |
| LSD | light steel drum | | | | Details |
| LSDC | Long Spacing Dead Time Clock | | | | Details |
| LSDP | Long Spacing Dead Time Pulse | | | | Details |
| LSDR | Long Spacing DeadTime Ratio | | | | Details |
| LSDS | LDS Long-Spaced Board DAC SLM Status | | | | Details |
| LSDT | Long Spacing Delta-T | | | | Details |
| lse | lease | | | | Details |
| lse | loose | | | | Details |
| LSF2 | pound-second per square foot | | | | Details |
| LSFB | LDS Long-Spaced Fast Channel Total Count | | | | Details |
| LSFF | LDS Long-Spaced Form Factor | | | | Details |
| LSFO | low sulfur fuel oil | | | | Details |
| LSFR | Long Spacing Sigma of Fast (10HZ) Sample | | | | Details |
| LSH | Level Sensor High | | | | Details |
| LSHV | High Voltage for Long Spacing Loop | | | | Details |
| LSHX | High Voltage On The Far Detector For | | | | Details |
| LSI | Low Structural Integrity (lowest level of pressure or Temperature) | | | | Details |
| LSI | Low Structural Integrity | | | | Details |
| LSIB | LDS Long-Spaced Digital Integrator Bad | | | | Details |
| LSIR | Location-Specific Individual Risk (HSEQ) | | | | Details |
| LSL | Limestone | | | | Details |
| LSL | Limestone Log | | | | Details |
| LSL | Lesotho Loti | | | | Details |
| LSL | Lesothoan loti | | | | Details |
| LSL | Level Sensor Low | | | | Details |
| LSL1 | Long Spacing Loop Window 1 | | | | Details |
| LSL2 | Long Spacing Loop Window 2 | | | | Details |
| LSL3 | Long Spacing Loop Window 3 | | | | Details |
| LSL4 | Long Spacing Loop Window 4 | | | | Details |
| LSLN | LDS Long-Spaced Low Level Discriminator | | | | Details |
| LSLP | LDS Long-Spaced Low Level Discriminator | | | | Details |
| LSLS | LDS Long-Spaced Board Latch SLM Status | | | | Details |
| LSLV | LDS Long-Spaced Low Level Discriminator | | | | Details |
| LSN | long- and short-normal resistivity | | | | Details |
| LSN | long-spaced gamma-ray detector | | | | Details |
| LSN | Long-Space Neutron Counts | | | | Details |
| LSN | Short Normal Resistivity(Logarithm) | | | | Details |
| LSO | LESOTHO | | | | Details |
| LSO | Low Sulphur Oil | | | | Details |
| LSOBM | low solids oil base mud | | | | Details |
| LSP | Lockset Packer | | | | Details |
| LSP | Lockset-Packer | | | | Details |
| LSPD | Line Speed (wireline) | | | | Details |
| LSPN | LDS Long-Spaced Pulse Shape Compensation | | | | Details |
| LSPP | LDS Long-Spaced Pulse Shape Compensation | | | | Details |
| LSPR | Long Spacing Pileup Ratio | | | | Details |
| LSPU | Long Spacing Pile-up | | | | Details |
| LSPV | LDS Long-Spaced Pulse Shape Compensation | | | | Details |
| LSR | Long and Short Axis Ratio | | | | Details |
| LSRB | Tool Relative Bearing | | | | Details |
| LSRB_DL | Tool Relative Bearing | | | | Details |
| LSRH | Long Spacing Density (Uncorrected) | | | | Details |
| LSRR | Long Spacing Resolution Ratio | | | | Details |
| LSS | Long Spaced Sonic | | | | Details |
| LSS | Long Spaced Sonic | | | | Details |
| LSS | Long-Spacing Sonic Log | | | | Details |
| LSS | Long-Spaced Sonic | | | | Details |
| LSSON | Long Spacing Sonic Log | | | | Details |
| LSSP | LDS Long-Spaced Spectrum | | | | Details |
| LSSP_SLDT | SLDT Long Spacing Spectrum | | | | Details |
| LSSP_SLDT_HR | SLDT High Resolution Long Spacing Spectrum None | | | | Details |
| LSSR | Long Spacing Sigma of Slow (5HZ) Sample | | | | Details |
| LST | Low Stand (Geologic deposition) | | | | Details |
| Lst | Limestone | | | | Details |
| LST | Low Stand System Track | | | | Details |
| LST | Life Support Technician (in diving operations) | | | | Details |
| LSTK | Lump Sum Turnkey | | | | Details |
| lstr | lustre | | | | Details |
| LSV | Low Shear Value | | | | Details |
| LSW1 | Long Spacing Window 1 | | | | Details |
| LSW2 | Long Spacing Window 2 | | | | Details |
| LSW3 | Long Spacing Window 3 | | | | Details |
| LSW4 | Long Spacing Window 4 | | | | Details |
| LSW5 | Long Spacing Window 5 | | | | Details |
| LSWF | Low Salinity Water Flooding | | | | Details |
| LSWI | Limit Switch | | | | Details |
| LSWI_DL | Limit Switch | | | | Details |
| LSYP | Low Shear Yield Point | | | | Details |
| LT | Low Temperature | | | | Details |
| LT | Low Torque valve | | | | Details |
| LT | Linear Time or Lag Time | | | | Details |
| LT | Long Term | | | | Details |
| LT | Level Transmitter (in a separator) | | | | Details |
| LT | LESOTHO | | | | Details |
| LT | LITHUANIA | | | | Details |
| lt | light | | | | Details |
| LT | Lost Teeth/Cutters | | | | Details |
| lt | Laut (according to…) | | | | Details |
| lt | light | | | | Details |
| LT | lower tubing | | | | Details |
| LT | Limit Test | Same as FIT | | | Details |
| lt | light | | | | Details |
| LT | Leadership Team | | | | Details |
| LT | Low Temperature | | | | Details |
| LT | Low Temperature | | | | Details |
| LT (LTONS) | Long TONS. | | | | Details |
| LT valve | Low Torque valve | | | | Details |
| LT&C | long thread and coupled, a connection description | | | | Details |
| LT&C | long threads and coupling | | | | Details |
| LT-OBM | Low Toxicity - Oil Based Mud | | | | Details |
| LT/cd | long tons of sulfur per calendar day | | | | Details |
| LTA | lost time accident | | | | Details |
| LTBS | liner tie back sleeve | | | | Details |
| LTC | Lost Time Case | | | | Details |
| LTC | Long Thread Coupling | | | | Details |
| LTCS | Low Temperature Carbon Steel | | | | Details |
| LTCS | Low temperature Carbon Steel | | | | Details |
| LTCW | Long Term Capacity Workshop | | | | Details |
| LTD | light | | | | Details |
| LTD | log total depth | | | | Details |
| ltd | limited | | | | Details |
| LTD | Logger’s Total Depth | | | | Details |
| Ltd | Limited Company | | | | Details |
| LTD | Long Term Development | | | | Details |
| LTDP | Long Term Development Plan | | | | Details |
| LTDS | Long Term Drilling Sequence | | | | Details |
| LTEN | Wireline Tension | | | | Details |
| LTF | Superposition Log Time Factor | | | | Details |
| ltg | lighting | | | | Details |
| Ltg | Gasleitung | pipeline | | | Details |
| LTG | Low tension gas flooding | | | | Details |
| LTHK | Lumped Thickness for Output SDF (LUMP) | | | | Details |
| LTI | Lost Time Incident (see comment) | | | | Details |
| LTI | Lost Time Injury | | | | Details |
| LTI | Lost Time Injury (HSEQ) | | | | Details |
| LTI | Lost Time Index | | | | Details |
| LTI(FR) | Lost Time Incident (Frequency Rate) | | | | Details |
| LTIF | Lost Time Incident Frequency | | | | Details |
| LTIF | Lost Time Injury Frequency | | | | Details |
| LTIFR | lost time injury frequency rate | | | | Details |
| LTIP | Long Term Incentive Plan | | | | Details |
| LTIR | Lost Time Injury Rate | | | | Details |
| LTIR | Lost Time Incident Rate | | | | Details |
| LTIR | Long-Term Injured Reserve (professional sports) | | | | Details |
| LTIR | Longer Term Investment Return | | | | Details |
| LTIS | Lost Time Injury Severity | | | | Details |
| LTL | less than truckload | | | | Details |
| ltl | little | | | | Details |
| LTL | Lithuanian Litas | | | | Details |
| LTM | Leadership Team Meeting | | | | Details |
| LtO | License to Operate | | | | Details |
| LTO | Light Tight Oil | | | | Details |
| LTOBM | low toxicity oil based mud | | | | Details |
| LTON | U.K. long ton | | | | Details |
| LTPF | Long Term Production Forecast | | | | Details |
| LTPF | Low Tension Polymer Flooding | | | | Details |
| LTPS | Long Term Power Supply project | | | | Details |
| ltr | letter | | | | Details |
| LTR | Long Term Rating | | | | Details |
| LTR | lateral | | | | Details |
| LTRM | long term reservoir management | | | | Details |
| LTS | low temperature separation | | | | Details |
| LTS | Unit low-temperature separation unit | | | | Details |
| LTS | Long-Term Strategy | | | | Details |
| LTSA | Long Term Service Agreement | | | | Details |
| LTSA | Locator Tubing Seal Assembly | | | | Details |
| LTSD | low-temperature shutdown | | | | Details |
| LTSI | long term shut-in | | | | Details |
| LTT | long-term tubing test | | | | Details |
| LTT1 | Long Spacing Transit Time 1 | | | | Details |
| LTT2 | Long Spacing Transit Time 2 | | | | Details |
| LTT3 | Long Spacing Transit Time 3 | | | | Details |
| LTT4 | Long Spacing Transit Time 4 | | | | Details |
| LTU | LITHUANIA | | | | Details |
| LTV | Low Torque valve | | | | Details |
| LTV | Low Temperature Valve | | | | Details |
| LTVO | Lower Transmitter Voltage | | | | Details |
| LTX | unit low-temperature extraction unit | | | | Details |
| LU | LUXEMBOURG | | | | Details |
| LU | Long Upper Computed Window Count Rate | | | | Details |
| LU1 | Long Upper 1 Window Count Rate | | | | Details |
| LU12 | Long Upper 1-2 Window Count Rate (LU1+LU2 | | | | Details |
| LU2 | Long Upper 2 Window Count Rate | | | | Details |
| LUB | lubricator | | | | Details |
| lub | lubricate(ed)(ing)(tion) | | | | Details |
| LUBRIESUR | Lubricantes del Sur S.A. Spain | | | | Details |
| LUBRINER | Lubricantes Nervion S.A. Spain | | | | Details |
| LUBRITURIA | Lubricantes Turia S.A. Spain | | | | Details |
| LUBV | Lubricator Valve | | | | Details |
| Lued | Lueders | | | | Details |
| LUF | Luxembourg franc | | | | Details |
| LUG | Ise use gas | | | | Details |
| LUK | Liner Unterkante | | | | Details |
| LUK | Lukoil Russia | | | | Details |
| LUL | Equiptment Location | | | | Details |
| LUMI | Luminescence Log | | | | Details |
| LUMP_FLAG | Channel created during lump processing to | | | | Details |
| LUN | Logical Unit Number | | | | Details |
| LUP | Land Using Planning | | | | Details |
| LURH | Long Upper Bulk Density | | | | Details |
| LUST | Leaking Underground Storage Tanks | | | | Details |
| LUX | LUXEMBOURG | | | | Details |
| LUX | light hytrocrackate | | | | Details |
| LV | LATVIA | | | | Details |
| LV | liquid volume | | | | Details |
| LV | Lebensversicherung | | | | Details |
| LV | Kondensatinhalt Errechnet (Tonne) | Calculated oil content | | | Details |
| LVA | LATVIA | | | | Details |
| LVBR | Low Value Budget Request | | | | Details |
| LVE | Low Volumetric Expansion | | | | Details |
| LVEL | Linear Velocity Log | | | | Details |
| LVI | low viscosity index | | | | Details |
| LVIS | Liquid Viscosity | | | | Details |
| lvl | level | | | | Details |
| LVL | Latvian Lats | | | | Details |
| Lvnwth | Leavenworth | | | | Details |
| LVOT | Linear Valve Override Tool | | | | Details |
| LVPO | Low Value Purchase Order | | | | Details |
| LVTE | Vertical Tool Eccentralization | | | | Details |
| LVTE_DL | Vertical Tool Eccentralization | | | | Details |
| LW | Low Water | | | | Details |
| LW | load water | | | | Details |
| LW | Lagerstätte Wasser | | | | Details |
| LW | lapweld | | | | Details |
| LWC | Lost Work Day (HSE KPI, see comment) | | | | Details |
| LWC | Lost Workday Case | | | | Details |
| LWC | Loss of Well Control | | | | Details |
| LWD | Logging While Drilling | | | | Details |
| LWD | Lost Workdays (see comment) | | | | Details |
| LWD | see Logging While Drilling | | | | Details |
| LWDC | Lost Work Day Case | | | | Details |
| LWDI | Lost Work Day Incident | | | | Details |
| LWDI | Lost Work-day Injury | | | | Details |
| LWDI | Lost Workday Injury | | | | Details |
| LWF | Logging While Fishing | | | | Details |
| LWL | low water loss | | | | Details |
| LWOP | Logging Well on Paper | | | | Details |
| lwr | lower | | | | Details |
| LWRP | lower workover riser package | | | | Details |
| LWTO | HRDD Window Total from Long Spacing | | | | Details |
| LX | LUXEMBOURG | | | | Details |
| LX | lux | | | | Details |
| lx | lux | | | | Details |
| LxR | links rechts Übergang | | | | Details |
| LY | LIBYA | | | | Details |
| LYD | Libyan Dinar | | | | Details |
| LZ | Lower Zakum | | | | Details |
| $/gal | U.S. dollars per gallon | | | | Details |
| $/gal | U.S. dollars per gallon | U.S. dollars per gallon | Dollar pro Gallone | dollars US par gallon | Details |
| $/lb | U.S. dollars per pound | | | | Details |
| $/lb | U.S. dollars per pound | U.S. dollars per pound | Dollar pro Pfund | dollars US par livre | Details |
| (bbl/d)/(c/s) | (barrel per day) per (cycle per second) | | | | Details |
| (bbl/d)/(rev/s) | GeoFrame legacy unit | | | | Details |
| *IL | IO+IL: Bei Kondensatlagersttäte im retrogeraden Bereich (Tonne) | Initial oil & condensate reserves in retrograde section | | | Details |
| 065L | Resistivity BKS B0.1A0.6M | | | | Details |
| 1/lbf | inverse pound force | | | | Details |
| 1/lbm | inverse pound | | | | Details |
| 105L | Resistivity BKS B0.1A1M | | | | Details |
| 155L | Resistivity BKS B0.1A1.5M | | | | Details |
| 15V_DL | 15 V Supply | | | | Details |
| 212L | CE Resistivity (B0.25A2M) | | | | Details |
| 212L1000 | CE Resistivity (B0.25A2M) 1/1000 spliced | | | | Details |
| 2CAL | 2-Arm Caliper Log | | | | Details |
| 2CAL | 2-Arm Caliper Log | 2-Arm Caliper Log | 2-Arm-Schieber-Log | 2-Arm Caliper Log | Details |
| 2LoT | 2nd Law of Thermodynamics | | | | Details |
| 2LoT | 2nd Law of Thermodynamics | 2nd Law of Thermodynamics | 2. Hauptsatz der Thermodynamik | 2ème loi de la thermodynamique | Details |
| 312L | Resistivity BKS B0.25A3M | | | | Details |
| 315L | Resistivity BKS B0.3A3M | | | | Details |
| 3CAL | 3-Arm Caliper Log | | | | Details |
| 3CAL | 3-Arm Caliper Log | 3-arm Caliper Log | 3-Arm Caliper Log | 3-bras Caliper Connexion | Details |
| 3DSL | 3 Dimentional Stream Line|| | 3 Dimentional Streamline | 3 Dimentional Stream | 3 Dimentional Streamline | Details |
| 3DSL | 3 Dimentional Stream Line | | | | Details |
| 3LPE | 3-Layer Polyethylene | | | | Details |
| 3LPP | 3-Layer Polypropylene | | | | Details |
| 425L | Resistivity BKS B0.5A4M | | | | Details |
| 4CAL | 4-Arm Caliper Log | | | | Details |
| 4CAL | 4-Arm Caliper Log | 4-Arm Caliper Log | 4-Arm Caliper Log | 4-Arm Caliper Log | Details |
| 50V_DL | 50 V Supply | | | | Details |
| 525L | Resistivity BKS B0.5A5M | | | | Details |
| 550L | Resistivity BKS M1N5A | | | | Details |
| 5V_DL | 5 V Supply | | | | Details |
| 625L | Resistivity BKS B0.5A6M | | | | Details |
| 800L | Resistivity BKS B1A7.5M | | | | Details |
| 825L | Resistivity BKS B0.5A8M | | | | Details |
| 850L | Resistivity BKS B1A8M | | | | Details |
| A CHL | Atlantic Chlorinlog | | | | Details |
| A CHL | Atlantic Chlorinlog | Atlantic Chlorinlog | Atlantic Chlorinlog | Chlorinlog Atlantique | Details |
| A Oil | Asphaltic Oil | | | | Details |
| A Öl | Asphaltierte Öl | Asphaltinic Oil | | | Details |
| A-Oil | Asphaltic Oil | | | | Details |
| A-Öl | Asphaltierte Öl | Asphaltinic Oil | | | Details |
| A/CLD | air cooled | | | | Details |
| A/CLD | air cooled | air cooled | luftgekühlt | air conditionné | Details |
| A/CLR | air cooler | | | | Details |
| A/CLR | air cooler | air cooler | Klimaanlage | refroidisseur d'air | Details |
| A8SL | APS ADC Subsystem 8031 Serial Link Master | | | | Details |
| AAL | Acoustic Amplitude | | | | Details |
| AAL | Acoustic Amplitude | Acoustic amplitude | Akustische Amplitude | amplitude acoustique | Details |
| AAPL | American Association of Petroleum Landmen | | | | Details |
| AAPL | American Association of Professional Landmen | | | | Details |
| AAPL | American Association of Petroleum Landmen | American Association of Petroleum landmen | American Association of Petroleum landmen | American Association of Petroleum agents fonciers | Details |
| AAPL | American Association of Professional Landmen | American Association of Professional landmen | American Association of Professional landmen | American Association of Professional agents fonciers | Details |
| AASL | APS Accelerator Controller DAC Serial Link Tool_Status | | | | Details |
| abd loc | abandoned location | | | | Details |
| abd loc | abandoned location | abandoned location | verlassenen Standort | emplacement abandonné | Details |
| ABFD_SL | Amplitude of Borehole Signal - Far | | | | Details |
| ABHL | absolute bottom hole location | | | | Details |
| ABHL | absolute bottom-hole location | | | | Details |
| ABHL | absolute bottom hole location | absolute bottom hole location | absolute untere Loch Lage | emplacement absolu de fond de trou | Details |
| ABHL | absolute bottom-hole location | absolute bottom-hole location | absolute Lochboden- Lage | emplacement absolu du fond de puits | Details |
| ABL | Alternate Borehole Liner | | | | Details |
| ABND_SL | Amplitude of Borehole Signal - Near | | | | Details |
| Abwältigung | In a well when it is needed to change the producing interval back to a deeper interval; needs isolation of upper perfs etc. | | | | Details |
| AC PAR L | Acoustic Parameter-Logging | | | | Details |
| AC/CAL | Acoustilog Caliper Gamma Ray Neutron | | | | Details |
| AC/CAL | BHC Acoustilog Caliper | | | | Details |
| AC/CAL | BHC Acoustilog Caliper (Thru Casing) | | | | Details |
| AC/CAL GR | Acoustilog Caliper Gamma Ray | | | | Details |
| AC/CAL NEU | Acoustilog Caliper Neutron | | | | Details |
| AC/CAL/ | BHC Acoustilog Caliper G/R Neutron | | | | Details |
| AC/CAL/GR | BHC Acoustilog Caliper Gamma Ray | | | | Details |
| ACAL | AcoustiCaliper | | | | Details |
| ACAL | Average Caliper | | | | Details |
| ACCEL | accelerometers | | | | Details |
| ACCEL | Acceleration | | | | Details |
| ACCL | Averaged Casing Collar Locator | | | | Details |
| ACL | Access Control List | | | | Details |
| ACL | Long-Spaced BHC Acoustilog | | | | Details |
| ACLO | NPLC ADC Low Calibration Reference | | | | Details |
| ACLR | air cooler | | | | Details |
| ACLZ | ECSC ADC Low Calibration Reference | | | | Details |
| ACQ_TIME_SL | Acquisition Cycle Time - Station Log | | | | Details |
| ACSL | Acoustic | | | | Details |
| ACTL | LDS Long-Spaced Acquisition Time | | | | Details |
| AC_REL_STATE | AC AUX Isolation Relay State | | | | Details |
| ADCL | APS ADC Calibration Low Reference | | | | Details |
| addl | additional | | | | Details |
| ADKL | Aderklaa (Geological formation in Austria) | | | | Details |
| ADKL.KG | Aderklaa konglomerat (Geological formation in Austria) | Aderklaa Conglomerate | | | Details |
| ADKL.S | Aderklaa Schichten (Geological formation in Austria) | Aderklaa bedding | | | Details |
| ADKLKG | Aderklaa konglomerat (Geological formation in Austria) | Aderklaa Conglomerate | | | Details |
| ADKLS | Aderklaa Schichten (Geological formation in Austria) | Aderklaa bedding | | | Details |
| ADL | above detection level | | | | Details |
| ADSL | Asymmetrical Digital Subscriber Line | | | | Details |
| ADSL | APS Detector Discriminator Counter 1 | | | | Details |
| ADVL | Additive Volume | | | | Details |
| AEGPL | Assn. Europeenne des Gaz de Petrole Liquifies France | | | | Details |
| AELB | Atomic Energy Licensing Act | | | | Details |
| AEPL | Albario Engineering (Pvt) Ltd | | | | Details |
| AF/CLR | after cooler | | | | Details |
| AFFD_SL | Amplitude of Formation Signal - Far | | | | Details |
| AFLASTM | a high temperature seal elastomer | | | | Details |
| AFLD | Annular Fluid Loss Device (ie Halliburton's Twin Flow tool) | | | | Details |
| AFND_SL | Amplitude of Formation Signal - Near | | | | Details |
| Ag/AgCl | Silver/Silver Chloride | | | | Details |
| AGL | Above Ground Level | | | | Details |
| AGTL | Alberta Gas Trunkline Co., LTD. | | | | Details |
| AHL | Amerada Hess Ltd. UK | | | | Details |
| AHSL | APS Detector High Voltage DAC Serial Link | | | | Details |
| AIBL | Minimum theoretical Acoustic Impedance of | | | | Details |
| AIQL | Acoustic Impedance Quicklook | | | | Details |
| AL | Appraisal Licence (United Kingdom), a type of onshore licence issued before 1996 | | | | Details |
| AL | Air Line (in air driling or UBD/MPD drilling) | | | | Details |
| AL | Artificial Lift | | | | Details |
| AL | ALBANIA | | | | Details |
| Al | Alabama | | | | Details |
| AL | aluminum | | | | Details |
| AL | Klasse-A-Vorrat Kondensat (Tonne-%) | Class A oil reserves | | | Details |
| AL | Asset Lead | | | | Details |
| ALA | ALAND ISLANDS | | | | Details |
| alab | alabastrine | | | | Details |
| ALAIN | OMV East Abu Dhabi Exploration GmbH | | | | Details |
| ALARA | as low as reasonably achievable | | | | Details |
| ALARP | As Low As Reasonably Practicable | | | | Details |
| ALARP | As Low As Reasonably Practical | | | | Details |
| ALARP | As Low As Reasonable Practicable | | | | Details |
| ALAT | Azimuthal Laterolog | | | | Details |
| ALAT | Azimuthal Laterolog | | | | Details |
| ALB | ALBANIA | | | | Details |
| Alb | Albany | | | | Details |
| ALB | Albite | | | | Details |
| Alba | Aluminium Bahrain BSC | | | | Details |
| ALBPETROL | Albanian Petroleum Corporation Albania | | | | Details |
| ALC | Vertical Seismic Profile Acoustic Log Calibration Report | | | | Details |
| ALC | Agricultural Land Commission (see comment) | | | | Details |
| alc | alcoholic | | | | Details |
| ALC | Acoustilog | | | | Details |
| ALC-GR | Acoustilog Caliper-Gamma Ray | | | | Details |
| ALC-GRN | Acoustilog Caliper-Gamma Ray-Neutron | | | | Details |
| ALC-N | Acoustilog Caliper-Neutron | | | | Details |
| ALCOA | Aluminum Company of America | | | | Details |
| ALD | Azimuthal Litho Density (logging control) | | | | Details |
| ALD | Azimuthal Litho Density | | | | Details |
| ALEPCO | Ste. Algero-Arab-Libyenne d’Exploitation et de Production des Produits Petroliers Algeria | | | | Details |
| ALFA | LDS Enhanced Resolution Alpha Factor | | | | Details |
| ALG | Algerian | | | | Details |
| alg | along | | | | Details |
| alg | algae | | | | Details |
| alg | algal | | | | Details |
| ALICO | American Life Insurance Company | | | | Details |
| ALIGN | alignment(ing) | | | | Details |
| alk | alkaline, alkalinity | | | | Details |
| Alkyd | a resin formed by reaction of polyhydric alcohols and polybasic salts Saturated or unsaturated oils or fats are involved | | | | Details |
| alkyl | alkylate, alkylation | | | | Details |
| ALL | Albanian Lek | | | | Details |
| ALLD | APS Load Leveler DAC Value | | | | Details |
| ALLOW | allowable, allowance | | | | Details |
| alm | alarm | | | | Details |
| ALOC | allocation | | | | Details |
| ALPC | Asset Lead Production Contract | | | | Details |
| ALPH | Alpha (Coefficient in Fracture Pressure | | | | Details |
| ALPH_CP | Biot Alpha vs. Confining Pressure | | | | Details |
| ALPI | Alpha Boost Factor | | | | Details |
| ALQL | Americium Log Quality Control In Upper | | | | Details |
| ALQU | Americium Log Quality Control In Upper | | | | Details |
| ALR | Acoustic Log Report | | | | Details |
| ALR | Agricultural Land Reserve (see comment) | | | | Details |
| ALS | Artificial Lift System | | | | Details |
| ALSL | APS Detector High Voltage Latch SLM Status Tool_Status | | | | Details |
| alt | alternate | | | | Details |
| ALT | altitude | | | | Details |
| ALT | Average Layer Thickness (Synthetic Log | | | | Details |
| ALU | ALUminium | | | | Details |
| ALU | Arithmetic Logic Unit | | | | Details |
| Alum | aluminum and potassium sulfate compound Used was water clairfying | | | | Details |
| ALUM | Weight Percent Aluminum | | | | Details |
| ALY | alloy | | | | Details |
| Aminoil | American Independent Oil Company | | | | Details |
| AML | Activity Management Loop | | | | Details |
| AML | Advanced Mud Logging | | | | Details |
| AMLD | APS Measured Load Leveler DAC Output | | | | Details |
| AMPBF_SL | Amplitude Bound Fluid - Station Log | | | | Details |
| AMPFF_SL | Amplitude Free Fluid - Station Log | | | | Details |
| AMPL | E2 Amplitude | | | | Details |
| AMPOL | Australian Petroleum Pty. Ltd. Australia | | | | Details |
| AMPSUM_SL | Amplitude Sum - Station Log | | | | Details |
| AMP_DIST_SL | Amplitude Distribution - Station Log | | | | Details |
| AMSL | above mean sea level | | | | Details |
| anal | analysis, analytical | | | | Details |
| ANGL | angle | | | | Details |
| Angul | Angulogerina | | | | Details |
| ANNULUS_PRES | Downhole annulus pressure | | | | Details |
| AOPL | Association of Oil Pipe Lines | | | | Details |
| APL | Annular Pressure Loss | | | | Details |
| APLC | APS Near/Array Corrected Limestone | | | | Details |
| APLU | APS Near/Array Uncorrected Limestone | | | | Details |
| APLW | Americium Peak Lower Window Output | | | | Details |
| appl | appliance | | | | Details |
| appl | applied | | | | Details |
| applic | application | | | | Details |
| AQL | acceptance quality level | | | | Details |
| ARACL | Array Acoustic Log | | | | Details |
| ArbPl | Arbeitsplatz | | | | Details |
| ARKLA | Arkansas Louisiana Gas Co. | | | | Details |
| ARLL | Array Laterolog Resistivity | | | | Details |
| ARPEL | Assistencia Reciproca Petrolera Empresarial Latinoamerica Regional Assn. of Oil & Natural Gas Cos. in Latin America and the Caribbean)(—) | | | | Details |
| ASAL | Apparent Salinity | | | | Details |
| ASCL | Acoustic Super Combo Log | | | | Details |
| ASL | Arab Super Light | | | | Details |
| ASL | Amplitude Sonic | | | | Details |
| ASL | Acoustic Scope Picture | | | | Details |
| ASL | Fracture Finder | | | | Details |
| ASL | Above Sea Level | | | | Details |
| ASLD | Azimuthal Stabilized Litho Density | | | | Details |
| ASLE | American Society of Lubricating Engineers | | | | Details |
| ASRL | Alberta Sulfur Research Ltd | | | | Details |
| ASSL | APS ADC Subsystem Latch Serial Link Master Tool_Status | | | | Details |
| ATEP_TL | Accelerometer Temperature | | | | Details |
| ATLANTICO | Compania Espanola de Petroleos Atlantico S.A. Spain | | | | Details |
| Aufwältigung | In a well when it is needed to change the producing interval to a shallower interval | | | | Details |
| AULA | LDS AUX Board Latch SLM Status | | | | Details |
| avail | available | | | | Details |
| AVDL | Amplitude Variable Density Log | | | | Details |
| AVEL | ACT Cable Speed on level by level basis | | | | Details |
| AVL | Acoustic Velocity | | | | Details |
| AVLS | Average Metal Loss | | | | Details |
| AVLT | Averaged VALT computed from TRPM | | | | Details |
| AWL | Above Water Level | | | | Details |
| AZSL | Displacement Axis | | | | Details |
| AZU_TL | Acceleration - Uncorrected | | | | Details |
| AZ_TL | Acceleration On Z Axis | | | | Details |
| B.Bl | Base Blane | | | | Details |
| B.Ls | Big Lime | | | | Details |
| B/L | bill of lading | | | | Details |
| B/Vlv | ball valve | | | | Details |
| B0_MC_SL | B0 for Master Calibration - Station Log | | | | Details |
| B1G1_DL | MRPS 1 Gain for Multiplexer Channel 0 to 3 None | | | | Details |
| B1G2_DL | MRPS 1 Gain for Multiplexer Channel 4 to 7 None | | | | Details |
| B1TF_DL | MRPS 1 Temperature Frequency Offset | | | | Details |
| B1TR_DL | MRPS 1 Fluid Resistivity in Temperature | | | | Details |
| B1TV_DL | MRPS 1 Vertical Strain Gauge Temperature | | | | Details |
| B2G1_DL | MRPS 2 Gain for Multiplexer Channel 0 to 3 None | | | | Details |
| B2G2_DL | MRPS 2 Gain for Multiplexer Channel 4 to 7 None | | | | Details |
| B2TF_DL | MRPS 2 Temperature Frequency Offset | | | | Details |
| B2TR_DL | MRPS 2 Fluid Resistivity in Temperature | | | | Details |
| B2TV_DL | MRPS 2 Vertical Strain Gauge Temperature | | | | Details |
| B3G1_DL | MRPS 3 Gain for Multiplexer Channel 0 to 3 None | | | | Details |
| B3G2_DL | MRPS 3 Gain for Multiplexer Channel 4 to 7 None | | | | Details |
| B3TF_DL | MRPS 3 Temperature Frequency Offset | | | | Details |
| B3TR_DL | MRPS 3 Fluid Resistivity in Temperature | | | | Details |
| B3TV_DL | MRPS 3 Vertical Strain Gauge Temperature | | | | Details |
| BAC1_DL | MRPS 1 Acquisition Command Echo | | | | Details |
| BAC2_DL | MRPS 2 Acquisition Command Echo | | | | Details |
| BAC3_DL | MRPS 3 Acquisition Command Echo | | | | Details |
| BACK_SL | Background - Near Gates | | | | Details |
| BADL | RST Bad Level Flag, Sigma Phase 1 | | | | Details |
| BADL_DIAG | RST Bad Level Diagnostic | | | | Details |
| bail | bail, bailed | | | | Details |
| bail | bail(ed) | | | | Details |
| BAL | Bond Attenuation Log | | | | Details |
| BAL | balance | | | | Details |
| BAL | Bound Attenuation Log | | | | Details |
| BAL | Balance of Peaks-Elements to | | | | Details |
| BAL | Block and Lock (Close nose and lock hands) | | | | Details |
| Ball | Balltown sand | | | | Details |
| BALS | Baker Atlas Logging Services | | | | Details |
| Batelco | Bahrain Telecommunications Co. | | | | Details |
| BAWUL | barrels acid water under load | | | | Details |
| bbl | barrel | | | | Details |
| Bbl | a Standard Oil measure of 42 gallons, originally known as a blue barrel and abbreviated bbl 016 m3 | | | | Details |
| bbl | barrels | | | | Details |
| bbl | Barrels (of oil) | | | | Details |
| bbl | Barrel of oil | | | | Details |
| bbl.s/(d.c) | (barrel per day) per (cycle per second) | | | | Details |
| bbl/(acre.ft) | barrel per acre per foot | | | | Details |
| bbl/(d.ft) | barrel per day per foot | | | | Details |
| bbl/(d.ft.psi) | barrel per day per foot per (pound per square inch) | | | | Details |
| bbl/(d.kPa) | barrel per day per kilopascal | | | | Details |
| bbl/(d.psi) | barrel per day per (pound per square inch) | | | | Details |
| bbl/acre | barrel per acre | | | | Details |
| bbl/acre.ft | GeoFrame legacy unit | | | | Details |
| BBL/BBL | barrel per barrel | | | | Details |
| bbl/bbl | barrel per barrel | | | | Details |
| bbl/cd | barrels per calendar day | | | | Details |
| BBL/D | barrel per day | | | | Details |
| bbl/d | barrel per day | | | | Details |
| bbl/d.ft | GeoFrame legacy unit | | | | Details |
| bbl/d.ft.psi | GeoFrame legacy unit | | | | Details |
| bbl/d.kPa | GeoFrame legacy unit | | | | Details |
| bbl/d.psi | GeoFrame legacy unit | | | | Details |
| bbl/ft3 | barrel per thousand cubic feet | | | | Details |
| bbl/ft3 | barrel per cubic foot | | | | Details |
| bbl/h | barrel per hour | | | | Details |
| BBL/HR | barrel per hour | | | | Details |
| bbl/kPa | barrel per kilopascal | | | | Details |
| bbl/Mft3 | GeoFrame legacy unit | | | | Details |
| bbl/min | barrel per minute | | | | Details |
| BBL/PSI | barrel per (pound per square inch) | | | | Details |
| bbl/psi | barrel per (pound per square inch) | | | | Details |
| bbl/SCF | barrel per standard cubic foot | | | | Details |
| bbl/sd | barrels per stream day | | | | Details |
| bbl/STB | barrel per standard barrel | | | | Details |
| bbl/yr | barrels per year | | | | Details |
| BBLM | barrel per minute | | | | Details |
| BBLs | barrels of oil | | | | Details |
| BCHL | Borehole Chlorine Yield (Capture) | | | | Details |
| BD-MLW | barge deck to mean low water | | | | Details |
| BDL | Bit Data Log | | | | Details |
| BDL | below detection level | | | | Details |
| BDL | bundle | | | | Details |
| BDM1_CAL_D | Calibrated deep button average Transmitter Profile_Conductance | | | | Details |
| BDM2_CAL_D | Calibrated deep button average Transmitter Profile_Conductance | | | | Details |
| BEL | BELGIUM | | | | Details |
| Bel | Beldon | | | | Details |
| Bel-C | Belle City | | | | Details |
| Bel-F | Belle Fourche | | | | Details |
| belem | belemnites | | | | Details |
| Belm | belemnites | | | | Details |
| BERL | Boral Energy Resources Ltd. Australia | | | | Details |
| BFL | baffle | | | | Details |
| BFLA | Flag identifying when bit overpressure | | | | Details |
| BFLAG | Boolean True False Flag | | | | Details |
| bflst | bafflestone | | | | Details |
| BFR1_DL | MRPS 1 Fluid Resistivity at Flow Line | | | | Details |
| BFR2_DL | MRPS 2 Fluid Resistivity at Flow Line | | | | Details |
| BFR3_DL | MRPS 3 Fluid Resistivity at Flow Line | | | | Details |
| BFV_MW_SIG_SL | Standard Deviation of Bound Fluid Volume - Standard_Deviation | | | | Details |
| BFV_MW_SL | Bound Fluid Volume - Multi Wait - Station | | | | Details |
| BFV_SIG_SL | Standard Deviation of Bound Fluid Volume - Standard_Deviation | | | | Details |
| BFV_SL | Bound Fluid Volume - Station Log | | | | Details |
| BGEPIL | British Gas Exploration and Production (India) Limited | | | | Details |
| BGL | Below ground level (used as a datum for depths in a well) | | | | Details |
| BGL | Borehole Geometry Log | | | | Details |
| BGL | Bulgarian lev | | | | Details |
| BHC AL TC | BHC Acoustilog Caliper (Thru Casing) | | | | Details |
| BHC ALC | BHC Acoustilog Caliper | | | | Details |
| BHC ALC GR | BHC Acoustilog Caliper Gamma Ray | | | | Details |
| BHC ALC GRN | BHC Acoustilog Caliper G/R Neutron | | | | Details |
| BHC ALC N | BHC Acoustilog Caliper Neutron | | | | Details |
| BHC ALGRNTC | BHC Acoustilog Caliper G/R Neutron (Thru Casing) | | | | Details |
| BHC-WFL | Wave Form Logging | | | | Details |
| BHL | Borehole Log | | | | Details |
| BHL | bottom hole location | | | | Details |
| BHL | bottom-hole location | | | | Details |
| BHOLAT | Susana Beteiligungsverwaltungs GmbH | | | | Details |
| BHP1_DL | MRPS 1 Hydraulic Pressure | | | | Details |
| BHP2_DL | MRPS 2 Hydraulic Pressure | | | | Details |
| BHP3_DL | MRPS 3 Hydraulic Pressure | | | | Details |
| BILI | Bond Index Level for Isolation | | | | Details |
| BIVDL | BI/DK/WF/Casing Collar Locator/Gamma Ray Log | | | | Details |
| BKALBE | Borealis Kallo N.V. | | | | Details |
| BKFLSH | back flush | | | | Details |
| Bl | Bohrloch (borehole…, the hole…) | | | | Details |
| BL | BaLe | | | | Details |
| BL | BOLIVIA | | | | Details |
| BL | SAINT BARTHELEMY | | | | Details |
| BL | balance line | | | | Details |
| BL | barrels load | | | | Details |
| bl | blue | | | | Details |
| BL | Klasse-B-Vorrat Kondensat (Tonne-%) | Class B oil reserves | | | Details |
| BL | Block and Lock (Close nose and lock hands) | | | | Details |
| BL&AW | barrels load & acid water | | | | Details |
| Bl/Cb | blast cabinet | | | | Details |
| BL/JT | blast joint | | | | Details |
| BLASRB | Borealis L.A.T d.o.o. Beograd | | | | Details |
| BLATAT | Borealis L.A.T GmbH | | | | Details |
| BLATFR | Borealis L.A.T France S.A.S. | | | | Details |
| BLC | Big Lever Club (Contracting) | | | | Details |
| BLC | barrels load condensate | | | | Details |
| BLC | Big Lever Club | | | | Details |
| BLCPD | barrels load condensate per day | | | | Details |
| BLCPH | barrels load condensate per hour | | | | Details |
| bld | bailed | | | | Details |
| bld | bleeding | | | | Details |
| BLD-FLG | BF blind flange | | | | Details |
| bld-gas | bleeding gas | | | | Details |
| bldg | building | | | | Details |
| bldg-drk | building derrick | | | | Details |
| bldg-rds | building roads | | | | Details |
| bldo | bleeding oil | | | | Details |
| bldrs | boulders | | | | Details |
| BLE | bevel large end | | | | Details |
| bledg | bleeding | | | | Details |
| Bleiabdruck | Impression Block|| | impression block | Eindruck Block | bloc d'impression | Details |
| Bleiabdruck | Impression Block | Impression Block | | | Details |
| BLEVE | Boiling liquid expanding vapor explosion | | | | Details |
| BLF | Banque Libano-Française | | | | Details |
| blg | bailing | | | | Details |
| BLI | Bottom of Logging Interval | | | | Details |
| BLI | Bottom Logged Interval | | | | Details |
| Blin | Blinebry | | | | Details |
| blK | black | | | | Details |
| BLK | Block | | | | Details |
| Blk-Lf | Black Leaf | | | | Details |
| Blk-Li | Black Lime | | | | Details |
| blk-lnr | blank liner | | | | Details |
| BLKD | Bulk Density | | | | Details |
| BLKP | Height of block above rig floor | | | | Details |
| blky | blocky | | | | Details |
| BLM | SAINT BARTHELEMY | | | | Details |
| BLM | US Bureau of Land Management | | | | Details |
| BLM | Bureau of Land Management | | | | Details |
| BLM | Bohrlochmessungen | wellbore measurements (logging) | | | Details |
| blmg | blooming | | | | Details |
| BLND | blend(ed)(er)(ing) | | | | Details |
| BLO | barrels of load oil | | | | Details |
| BLO | barrels load oil | | | | Details |
| blo | blow | | | | Details |
| BLOM | Banque du Liban et d’Outre-Mer | | | | Details |
| BLOPD | barrels of load oil per day | | | | Details |
| BLOPD | barrels load oil per day | | | | Details |
| BLOPH | barrels of load oil per hour | | | | Details |
| BLOPH | barrels load oil per hour | | | | Details |
| BLOR | barrels load oil recovered | | | | Details |
| Blos | blossom | | | | Details |
| BLOTBR | barrels load oil to be recovered | | | | Details |
| BLOYTR | barrels load oil yet to recover | | | | Details |
| BLPD | Barrel Liquid Per Day | | | | Details |
| BLPD | barrels of liquid per day | | | | Details |
| BLPR | Black percentage | | | | Details |
| BLR | BELARUS | | | | Details |
| blr | bailer | | | | Details |
| BLR | boiler | | | | Details |
| BLS | Basic Life Support | | | | Details |
| BLS | Bureau of Labor Statistics | | | | Details |
| BLSH | Block Shift between Shots or Knee | | | | Details |
| BLTR | barrels of load to recover | | | | Details |
| blts | bullets | | | | Details |
| blu | blue | | | | Details |
| BLUE | Best Linear Unbiased Estimator | | | | Details |
| BLW | barrels of load water | | | | Details |
| BLW | barrels load water | | | | Details |
| BLWPD | barrels of load water per day | | | | Details |
| BLWPD | barrels load water per day | | | | Details |
| BLWPH | barrels of load water per hour | | | | Details |
| BLWPH | barrels load water per hour | | | | Details |
| BLWR | blower | | | | Details |
| BLWTR | barrels load water to recover | | | | Details |
| BLZ | BELIZE | | | | Details |
| BMF1_DL | MRPS 1 Frequency in Multiplexer Channels | | | | Details |
| BMF2_DL | MRPS 2 Frequency in Multiplexer Channels | | | | Details |
| BMF3_DL | MRPS 3 Frequency in Multiplexer Channels | | | | Details |
| BML | Below Mud Line (Subsea measurement) | | | | Details |
| BMM1_CAL_D | Calibrated medium button average | | | | Details |
| BMM2_CAL_D | Calibrated medium button average | | | | Details |
| BMSL | Below Mean Sea Level | | | | Details |
| BNC1_DL | MRPS 1 Difference Frequency in Clock | | | | Details |
| BNC2_DL | MRPS 2 Difference Frequency in Clock | | | | Details |
| BNC3_DL | MRPS 3 Difference Frequency in Clock | | | | Details |
| BNGL | Barrels of natural gas liquids | | | | Details |
| BNM1_DL | MRPS 1 Difference Frequency in Clock | | | | Details |
| BNM2_DL | MRPS 2 Difference Frequency in Clock | | | | Details |
| BNM3_DL | MRPS 3 Difference Frequency in Clock | | | | Details |
| BNOCL | Barbados National Oil Company Ltd. Barbados | | | | Details |
| BNS1_DL | MRPS 1 MRDP 1 Difference Frequency in | | | | Details |
| BNS2_DL | MRPS 2 Difference Frequency in Quartz | | | | Details |
| BNS3_DL | MRPS 3 Difference Frequency in Quartz | | | | Details |
| BOCL | a kind of a weight set packer | | | | Details |
| BOIL | Formation Volume Factor of Oil | | | | Details |
| BOL | Back On Line | | | | Details |
| BOL | BOLIVIA | | | | Details |
| Bol. | Bolivarensis | | | | Details |
| Bol.a. | Bolivina a. | | | | Details |
| Bol.flor. | Bolivina floridana | | | | Details |
| Bol.p. | Bolivina perca | | | | Details |
| BOMINFLOT | KG Bominflot Bunkergas fuer Mineraloele mbH & Co. Germany | | | | Details |
| BOTHL | Bottom Hole Locator Log | | | | Details |
| BP/CLR | bypass cooler | | | | Details |
| BPC1_DL | MRPS 1 Quartz Pressure Compensation | | | | Details |
| BPC2_DL | MRPS 2 Quartz Pressure Compensation | | | | Details |
| BPC3_DL | MRPS 3 Quartz Pressure Compensation | | | | Details |
| BPCL | Bharat Petroleum Corporation Limited | | | | Details |
| BPFL | Borehole Profile Log | | | | Details |
| BPLNLD | Borealis Plastomers B.V. | | | | Details |
| BPLO | barrels of pipeline oil | | | | Details |
| BPLOPD | barrels of pipeline oil per day | | | | Details |
| BPLUG | Baker Plug | | | | Details |
| BQL | B/QL Log | | | | Details |
| BQP1_DL | MRPS 1 Quartz Pressure | | | | Details |
| BQP2_DL | MRPS 2 Quartz Pressure | | | | Details |
| BQP3_DL | MRPS 3 Quartz Pressure | | | | Details |
| BQS1_DL | MRPS 1 Quartz Gauge Status | | | | Details |
| BQS2_DL | MRPS 2 Quartz Gauge Status | | | | Details |
| BQS3_DL | MRPS 3 Quartz Gauge Status | | | | Details |
| BQT1_DL | MRPS 1 Quartz Temperature | | | | Details |
| BQT2_DL | MRPS 2 Quartz Temperature | | | | Details |
| BQT3_DL | MRPS 3 Quartz Temperature | | | | Details |
| Br.ld. | Break load | | | | Details |
| BRA1_DL | MRPS 1 Resistivity Automatic Compensation | | | | Details |
| BRA2_DL | MRPS 2 Resistivity Automatic Compensation | | | | Details |
| BRA3_DL | MRPS 3 Resistivity Automatic Compensation | | | | Details |
| BRF1_DL | MRPS 1 Resistivity Frequency | | | | Details |
| BRF2_DL | MRPS 2 Frequency for Fluid Resistivity | | | | Details |
| BRF3_DL | MRPS 3 Frequency for Fluid Resistivity | | | | Details |
| BRFL/V | butterfly valve | | | | Details |
| BRH1_DL | MRPS 1 Raw Hydraulic Pressure | | | | Details |
| BRH2_DL | MRPS 2 Raw Hydraulic Pressure | | | | Details |
| BRH3_DL | MRPS 3 Raw Hydraulic Pressure | | | | Details |
| BRL | Brazilian Real | | | | Details |
| Brn Li | brown lime | | | | Details |
| BRONLD | Rosier Nederland B.V | | | | Details |
| BRPLG | Bridge Plug Log | | | | Details |
| BRQ1_DL | MRPS 1 Raw Quartz Pressure | | | | Details |
| BRQ2_DL | MRPS 2 Raw Quartz Pressure | | | | Details |
| BRQ3_DL | MRPS 3 Raw Quartz Pressure | | | | Details |
| BRR1_DL | MRPS 1 Raw Resistivity of Fluid | | | | Details |
| BRR2_DL | MRPS 2 Raw Resistivity of Fluid | | | | Details |
| BRR3_DL | MRPS 3 Raw Resistivity of Fluid | | | | Details |
| BRS1_DL | MRPS 1 Raw Vertical Strain Gauge Pressure | | | | Details |
| BRS2_DL | MRPS 2 Raw Vertical Strain Gauge Pressure | | | | Details |
| BRS3_DL | MRPS 3 Raw Vertical Strain Gauge Pressure | | | | Details |
| brtl | brittle | | | | Details |
| BSAL | Borehole Salinity | | | | Details |
| BSAL_DIAG | RST Borehole Salinity Diagnostic | | | | Details |
| BSAL_SIG | RST Borehole Salinity Uncertainty | | | | Details |
| BSAL_SL | Borehole Salinity | | | | Details |
| BSC1_DL | MRPS 1 Solenoid Command Echo | | | | Details |
| BSC2_DL | MRPS 2 Solenoid Command Echo | | | | Details |
| BSC3_DL | MRPS 3 Solenoid Command Echo | | | | Details |
| BSF1_DL | MRPS 1 Vertical Strain Gauge Frequency | | | | Details |
| BSF2_DL | MRPS 2 Vertical Strain Gauge Frequency | | | | Details |
| BSF3_DL | MRPS 3 Vertical Strain Gauge Frequency | | | | Details |
| BSFL_DIAG | RST BSAL Filter Level Diagnostic | | | | Details |
| BSG1_DL | MRPS 1 Vertical Strain Gauge Pressure | | | | Details |
| BSG2_DL | MRPS 2 Vertical Strain Gauge Pressure | | | | Details |
| BSG3_DL | MRPS 3 Vertical Strain Gauge Pressure | | | | Details |
| BSL | Below Sea Level | | | | Details |
| Bsl | basal | | | | Details |
| BSL | Borehole Compensated Sonic | | | | Details |
| BSL | Behandlungsstunden Laufend | Well inetvention lost hours | | | Details |
| Bslt | base of the salt | | | | Details |
| BSM1_CAL_D | Calibrated shallow button average | | | | Details |
| BSM2_CAL_D | Calibrated shallow button average | | | | Details |
| BSML | below sea mean level | | | | Details |
| BSPL | base plate | | | | Details |
| BSS1_DL | MRPS 1 Solenoid Status | | | | Details |
| BSS2_DL | MRPS 2 Solenoid Status | | | | Details |
| BSS3_DL | MRPS 3 Solenoid Status | | | | Details |
| BSUL | Borehole Sulfur Yield (Capture) | | | | Details |
| BSW1_DL | MRPS 1 Status Word | | | | Details |
| BSW2_DL | MRPS 2 Status Word | | | | Details |
| BSW3_DL | MRPS 3 Status Word | | | | Details |
| BSW_OIL_LINE | Basic sediment and water (decimal ratio) | | | | Details |
| BS_L | Stunden für laufende Behandlung [h] | | | | Details |
| BTFL/V | butterfly valve | | | | Details |
| BTHL | Bottom Hole Log | | | | Details |
| BTL | Biomass-to-liquid | | | | Details |
| BTL | Borehole Televiewer | | | | Details |
| BTL | Bantry Terminals Ltd. Ireland | | | | Details |
| BTL | Bottom-Top Limits | | | | Details |
| Btu/lb | British thermal units per pound | | | | Details |
| BTWLD | butt weld | | | | Details |
| Bt·l | barrels of mud | | | | Details |
| BUL | bottom up lag | | | | Details |
| Bul.text. | Buliminella textularia | | | | Details |
| BULG | OMV BULGARIA OOD | | | | Details |
| BULI | Bulimina (teil von Baden) (Geological formation in Austria) | Part of Baden Fm in Austria | | | Details |
| Bull-W | Bull wagon | | | | Details |
| BV/WLD | beveled for welding | | | | Details |
| BVA1_DL | MRPS 1 Vertical Strain Gauge Automatic | | | | Details |
| BVA2_DL | MRPS 2 Vertical Strain Gauge Automatic | | | | Details |
| BVA3_DL | MRPS 3 Vertical Strain Gauge Automatic | | | | Details |
| BVL | Bulk Volume Liquid | | | | Details |
| BWL | barrel water load | | | | Details |
| BWL | body wall loss | | | | Details |
| BWOL | barrels water over load | | | | Details |
| C limit | or Ceiling limit | | | | Details |
| C-Cal | contact caliper | | | | Details |
| C/L | Control Line (the hydraulic line for controling SSSV and chemical injection in completion) | | | | Details |
| C/L | center line | | | | Details |
| C2IL | Volume of Anhydrite, Salt, Sand, | | | | Details |
| Cable | one of various braided cables, with or without isolated conductance wires, used for well operations | | | | Details |
| CaCl2 | calcium chloride salt | | | | Details |
| CAL | Caliper | | | | Details |
| CAL | Computed Gafillla | | | | Details |
| CAL | Section Gauge | | | | Details |
| CAL | Country Alert Level | | | | Details |
| cal | calcite, calcitic | | | | Details |
| cal | caliche | | | | Details |
| CAL | caliper log | | | | Details |
| cal | caliper survey | | | | Details |
| cal | calorie | | | | Details |
| CAL | Caliper Logging | | | | Details |
| CAL | Computer Analyzed Log | | | | Details |
| CAL | Four-Arm Caliber Log | | | | Details |
| CAL | Perforation Depth Control Log | | | | Details |
| CAL | Caltex Australia Ltd. Australia | | | | Details |
| CAL | calorie (international) | | | | Details |
| cal | calorie (international) | | | | Details |
| CAL | caliper diameter | | | | Details |
| CAL | Caliper | | | | Details |
| CAL1 | 4arm-Caliper1 | | | | Details |
| CAL1 | Caliper 1 | | | | Details |
| CAL2 | 4arm-Caliper2 | | | | Details |
| CAL2 | Caliper 2 | | | | Details |
| CAL3 | Caliper 3 | | | | Details |
| CAL4 | Caliper 4 | | | | Details |
| CAL5 | Caliper 5 | | | | Details |
| CAL6 | Caliper 6 | | | | Details |
| CAL7 | Caliper 7 | | | | Details |
| CAL8 | Caliper 8 | | | | Details |
| CALA | Calipet Analysis | | | | Details |
| CALA | Caliper Analysis | | | | Details |
| calc | calcareous | | | | Details |
| CALC | Caliper Curve | | | | Details |
| Calc | calcareous, calcerenite | | | | Details |
| Calc | calcium | | | | Details |
| Calc | calculate(ed), calculation | | | | Details |
| calc | gr calcium-base grease | | | | Details |
| CALC | Calcite | | | | Details |
| Calct | calcite | | | | Details |
| CALD | Caliper interpreted from Density | | | | Details |
| cale | calceneous | | | | Details |
| CALE | Borehole Diameter from Electrical Caliper | | | | Details |
| CALH | LDS Caliper High Reference | | | | Details |
| CALHI | ADC Cal HI | | | | Details |
| CALHI_DL | ADC Cal HI | | | | Details |
| CALI | Caliper Log | | | | Details |
| CALI | Generalized Caliper | | | | Details |
| CALI | General Caliper | | | | Details |
| CALI | Caliper | | | | Details |
| CALI | Caliper | | | | Details |
| CALI | Caliper | | | | Details |
| CALIBR | calibrate, calibration | | | | Details |
| CALIL | Caliper Log | | | | Details |
| CALI_FSI | Caliper from FSI* tool | | | | Details |
| CALI_TL | Caliper | | | | Details |
| CALL | LDS Caliper Low Reference | | | | Details |
| CALLO | ADC Cal LOW | | | | Details |
| CALLO_DL | ADC Cal LOW | | | | Details |
| CALM | Capture Aluminum | | | | Details |
| CALM | Catenary Anchor Leg Mooring | | | | Details |
| CALOG | Circumferential Acoustic Log | | | | Details |
| CALP | Caliper | | | | Details |
| CALQ | Combinable Shot Seismic Tool Caliper | | | | Details |
| CALR | Diameter from Resistivity Tool | | | | Details |
| CALS | Micro Resistivity Caliper | | | | Details |
| CALTEX | Various affiliates of Texaco Inc, and Chevron Corp. partnership — | | | | Details |
| CALU | Mean Diameter | | | | Details |
| Calv | Calvin | | | | Details |
| CALVE | Calibrated Velocity Log Data | | | | Details |
| CALX | Caliper from X-Axis of X-Y Caliper(s) | | | | Details |
| CALX | Second Caliper | | | | Details |
| CAMEL | Companie Algerienne du Methane Liquide France/Algeria | | | | Details |
| CANL | Computer Analysis | | | | Details |
| CART_TEMP_SL | Cartridge Temperature - Station Log | | | | Details |
| CASL | Computer Acoustic | | | | Details |
| CAVL | Compensated Acoustic Velocity | | | | Details |
| CBIL | CBIL Log | | | | Details |
| CBIL | Circumferential Borehole Imaging Log | | | | Details |
| CBL | Cement Bond Log (measurement of casing cement integrity) | | | | Details |
| CBL | Cement Bond Log | | | | Details |
| CBL | Acoustic Cement Bond | | | | Details |
| CBL | cable(ing) | | | | Details |
| CBL | Cement Bond Logging | | | | Details |
| CBL | Acoustic Cement Bond Log | | | | Details |
| CBL | Casing Bottom Logger | | | | Details |
| Cbl | cobbles | | | | Details |
| CBL | CBL Amplitude | | | | Details |
| CBL GRN | Acoustic Cement Bond G/R Neutron | | | | Details |
| CBL N | Acoustic Cement Bond Neutron | | | | Details |
| CBL-GR | Cement Bond-Gamma Ray Logging | | | | Details |
| CBL-GRN | Cement Bond-Gamma Ray Neutron | | | | Details |
| CBL-N | Cement Bond-Neutron | | | | Details |
| CBL-VD | Variable Density Logging | | | | Details |
| CBL-VD | Cement Bond-Variable Density Logging | | | | Details |
| CBL/GR | Acoustic Cement Bond Gamma Ray | | | | Details |
| CBL/GR/NEU | Acoustic Cement Bond G/R Neutron | | | | Details |
| CBL/NEU | Acoustic Cement Bond Neutron | | | | Details |
| CBL5 | CBL Amplitude (5 f Spacing) | | | | Details |
| CBLF | CBL Amplitude Fluid Compensated | | | | Details |
| CBSL | CBL Amplitude (Sliding Gate) | | | | Details |
| CC1L | Casing Number 1 Collars and Centralizers - None | | | | Details |
| CC2L | Casing Number 2 Collars and Centralizers - None | | | | Details |
| CC3L | Casing Number 3 Collars and Centralizers - None | | | | Details |
| CCCL | CBT Casing Collar Locator Amplitude | | | | Details |
| CCHL | ECS Capture Chlorine Relative Yield | | | | Details |
| CCL | Casing Collar Locator | | | | Details |
| CCL | casing collar locator log | | | | Details |
| CCL | Casing Collar | | | | Details |
| CCL | Perforation Depth Control Log | | | | Details |
| CCL | Casing Collar Locator Amplitude | | | | Details |
| CCL | Casing Collar Locator Amplitude | | | | Details |
| CCL1 | Ultrasonic Casing Collar Locator 1 | | | | Details |
| CCL2 | Ultrasonic Casing Collar Locator 2 | | | | Details |
| CCL3 | Ultrasonic Casing Collar Locator 3 | | | | Details |
| CCL4 | Ultrasonic Casing Collar Locator 4 | | | | Details |
| CCLC | CCL Computed Amplitude | | | | Details |
| CCLD | CCL Discriminated Amplitude | | | | Details |
| CCLGO | cat-cracked light gas oil | | | | Details |
| CCLM | Monitor CCL | | | | Details |
| CCLP | Casing Collar Locator Perforation | | | | Details |
| CCLTP | Casing Collar Locator Through Tubing Plug | | | | Details |
| CCLU | Casing Collar Locator Ultrasonic | | | | Details |
| CCPL | Caliper Casing Properties Measurement | | | | Details |
| CD-PL | cadmium plate | | | | Details |
| CDCL | Compensated Densilog Caliper | | | | Details |
| CDCL | ECS Capture Chlorine Borehole Minus | | | | Details |
| CDCL GR | Compensated Densilog Caliper Gamma Ray | | | | Details |
| CDL | Compensated Density Log | | | | Details |
| CDL | compensated formation density log | | | | Details |
| CDL | Compensat ed Density | | | | Details |
| CDL | Compensated Density | | | | Details |
| CDL | cut drilling line | | | | Details |
| CDL | Compensated Densilog | | | | Details |
| CDL | Compensated Densilog | | | | Details |
| CDL/CAL | Compensated Densilog Caliper | | | | Details |
| CDL/CAL/ | Compensated Densilog Caliper | | | | Details |
| CDL/CAL/GR | Compensated Densilog Caliper | | | | Details |
| CDL/CAL/GR | Densilog Caliber Gamma Ray Log | | | | Details |
| CDL/CAL/ML | Compensated Densilog Caliper Minilog | | | | Details |
| CDLC GRN | Compensated Densilog Caliper G/R Neutron | | | | Details |
| CDLC M | Compensated Densilog Caliper Minilog | | | | Details |
| CDLC N | Compensated Densilog Caliper Neutron | | | | Details |
| CDLR | Deep Induction Test-loop Calibrated Real | | | | Details |
| CDLX | Deep Induction Test-loop Calibrated Quad | | | | Details |
| CDRCL | Compensated Dual Resistivity Cal. Log | | | | Details |
| CEHL | Cain Energy Hydrocarbons Limited | | | | Details |
| CEIL | Cairn Energy India Limited | | | | Details |
| CEL | cement evaluation log | | | | Details |
| CEL | Cement Evaluation | | | | Details |
| cell | cellar | | | | Details |
| cell | cellular | | | | Details |
| CELP | P Celerity (Velocity) | | | | Details |
| CELS | S Celerity (Velocity) | | | | Details |
| CERCLA | a US Law – Comprehensive Environmental Response, Compensation and Liability Act of 1980 | | | | Details |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act (The Superfund Law) | | | | Details |
| CFL8 | Correction Factor on LL8 | | | | Details |
| CFVL | Memorized Fluid Acoustic Slowness | | | | Details |
| CGEL | CG EL Log | | | | Details |
| CGL | Core Gamma Log | | | | Details |
| CGL | CONGLOMERATE | | | | Details |
| Cglc | conglomeratic | | | | Details |
| cglt | conglomerate, conglomeritic | | | | Details |
| CGR2_SL | TSGT Calibrated Gamma Ray - Station Log | | | | Details |
| CGTL | Compact Gas to liquids (production equipment small enough to fit on a ship) | | | | Details |
| chal | chalcedony | | | | Details |
| CHANNEL1 | Generic Unitless 1D Array | | | | Details |
| CHANNEL2 | Generic Unitless 1D Array | | | | Details |
| CHANNEL3 | Generic Unitless 1D Array | | | | Details |
| CHANNEL4 | Generic Unitless 1D Array | | | | Details |
| CHANNEL5 | Generic Unitless 1D Array | | | | Details |
| CHL | CHILE | | | | Details |
| CHL | cased hole log | | | | Details |
| chl | chloride | | | | Details |
| chl | chloride(s) | | | | Details |
| chl | chloritic | | | | Details |
| chl | log chlorine long | | | | Details |
| CHL | Chlorinlog | | | | Details |
| CHL GR | Chlorinlog-Gamma Ray | | | | Details |
| CHL GR | Chlorinlog-Gamma Ray | | | | Details |
| Chlor | chloritic | | | | Details |
| CHLR | chlorinator | | | | Details |
| CHLR | Chlorite | | | | Details |
| CHNL | Channel Survey | | | | Details |
| CHNL | channel | | | | Details |
| CIDL | chemical injection downhole lower | | | | Details |
| CIDL | Caliper Casing Inner Diameter Processed, | | | | Details |
| CIL | Conductivity Induction | | | | Details |
| CILB | Conductivity Induction Backup | | | | Details |
| CILD | Conduction Log | | | | Details |
| CILD | Deep Induction Conductivity | | | | Details |
| CILD | Calibrated Induction Deep Conductivity | | | | Details |
| CILM | Calibrated Induction Medium Conductivity | | | | Details |
| CIRF_FIL | RST Capture to Inelastic Ratio Far | | | | Details |
| CIRN_FIL | RST Capture to Inelastic Ratio Near | | | | Details |
| CL | Core Log | | | | Details |
| CL | Control Line (the hydraulic line for controling SSSV and chemical injection in completion) | | | | Details |
| CL | CORAL SEA ISLANDS | | | | Details |
| CL | CHILE | | | | Details |
| CL | control line | | | | Details |
| CL | Chloride | | | | Details |
| CL | Chlorine or Chlorinilog | | | | Details |
| CL | Salinity | | | | Details |
| CL | carload | | | | Details |
| cl | centiliter | | | | Details |
| CL | class | | | | Details |
| CL | Salinity | | | | Details |
| Cl | Clay | | | | Details |
| CL | Casing Leck | Casing Leak | | | Details |
| CL | US Crude Light | | | | Details |
| CL | Klasse-C-Vorrat Kondensat (Tonne-%) | Class C oil reserves | | | Details |
| CL | Course Length - Horizontal Drift of a | | | | Details |
| CL | Condensate Line | | | | Details |
| CL&F | Continental Land and Fur Co. | | | | Details |
| Cl2 | chlorine gas | | | | Details |
| Cl2 | chlorine | | | | Details |
| CLA | Collective Labor Agreement | | | | Details |
| Clag | Clagget | | | | Details |
| Claib | Claiborne | | | | Details |
| Clarks | Clarksville | | | | Details |
| clas | clastic | | | | Details |
| CLAS | Clay Analysis and Shaly Sand Evaluation (CLASS®) | | | | Details |
| CLASS | classification | | | | Details |
| Clav | Clavalinoides | | | | Details |
| Clay | a fine grain (<000015” or about 4 microns) – finely crystalline silica sheet minerals Usually of silicate composition In oil field terms, the most common clays are Smectite (montmorillinite), illite, kaolinite and chlorite The characteristic for authogenic clay is to have extremely high surface area-to-volume ratio | | | | Details |
| Clay | Clayton | | | | Details |
| Clay | Claytonville | | | | Details |
| CLAY | Clay Description (CLAYS) | | | | Details |
| CLAY | Clay | | | | Details |
| CLAY | Claystone Facies | | | | Details |
| CLC | Civil Liability Convention | | | | Details |
| CLc1 | US Crude Light contract (future contract) | | | | Details |
| CLDL | Chlorije Detection | | | | Details |
| CLDL | Chloride Detection | | | | Details |
| Cleve | Cleveland | | | | Details |
| CLEX | Cluster/Expansion | | | | Details |
| Clfk | Clearfork | | | | Details |
| CLFL | Choke Line Friction Losses | | | | Details |
| CLFP | choke line friction pressureClinker | | | | Details |
| CLFP | Choke and Kill Line Friction Pressures (also used for Choke Line Friction Pressures) | | | | Details |
| CLFR | clarifier | | | | Details |
| CLG | Core Log and Graph | | | | Details |
| CLG | cooling | | | | Details |
| CLG/TWR | cooling tower | | | | Details |
| CLGB | Credit Lyonnais Global Banking | | | | Details |
| CLH | Compania Logistica de Hidrocarburos S.A. Spain | | | | Details |
| Cliff-H | Cliff House | | | | Details |
| CLKG | caulking | | | | Details |
| CLL | Cluster Lead | | | | Details |
| CLL8 | Laterolog 8 Conductivity | | | | Details |
| CLLD | Laterolog Deep Conductivity | | | | Details |
| CLMP | canvas-lined metal petal basket | | | | Details |
| cln(d)(g) | clean(ed)(ing) | | | | Details |
| ClO2 | chlorine dioxide, a powerful biocide that dissolves biomass cell walls It is nearly impossible for bacteria to develop immunity against ClO2 | | | | Details |
| CLOS | Closure: horizontal distance from origin | | | | Details |
| Clov | clovery | | | | Details |
| CLP | Chilean Peso | | | | Details |
| CLP | Cumulative Liquid Production | | | | Details |
| CLP | Classification, Labeling and Packaging | | | | Details |
| CLQ | Central Living Quarters | | | | Details |
| clr | clear | | | | Details |
| clr | clear, clearance | | | | Details |
| CLR | cooler | | | | Details |
| CLR/TWR | cooling tower | | | | Details |
| CLRC | Career Ladder Review Committee | | | | Details |
| clrg | clearing | | | | Details |
| CLRP | Color Plot Continuous | | | | Details |
| CLRP | Corrected Lower Reference Phase | | | | Details |
| CLSA | Closure angle | | | | Details |
| clsd | closed | | | | Details |
| CLSD | The distance in a straight line and | | | | Details |
| CLSSM | Compensated Long Spaced Sonic MultiLink | | | | Details |
| CLST | Clay Stone | | | | Details |
| CLT | Central Limit Theorem | | | | Details |
| CLTR | collector | | | | Details |
| Clu | Sondencluster | well cluster | | | Details |
| CLU1 | Cluster Index from Parsel Pass 1 | | | | Details |
| CLU2 | Cluster Index from Parsel Pass 2 | | | | Details |
| Clut | calcilutite | | | | Details |
| cly | clay | | | | Details |
| Clye | clayey | | | | Details |
| Clyst | Claystone | | | | Details |
| clystn | clavstone | | | | Details |
| CMDV_DL | Coring Motor Downhole Voltage | | | | Details |
| CMFF_MW_SL | CMR Free Fluid - Multi Wait - Station Log | | | | Details |
| CMFF_SIG_SL | Standard Deviation of CMR Free Fluid - | | | | Details |
| CMFF_SL | CMR Free Fluid - Station Log | | | | Details |
| CML | Condition Monitoring Location | | | | Details |
| CML | Channelmaster | | | | Details |
| CML N | Channelmaster-Neutron | | | | Details |
| CMLL | MLL Conductivity | | | | Details |
| CMLP | Coring Motor Linear Position | | | | Details |
| CMLP_DL | Coring Motor Linear Position | | | | Details |
| CMLR | Medium Induction Test-loop Calibrated Real Medium_Induction_Conductivity | | | | Details |
| CMLX | Medium Induction Test-loop Calibrated Quad Medium_Induction_Conductivity | | | | Details |
| CMPL | Completion | | | | Details |
| CMRP_MW_SL | CMR Porosity - Multi Wait - Station Log | | | | Details |
| CMRP_SIG_SL | Standard Deviation of CMR Porosity - | | | | Details |
| CMRP_SL | CMR Porosity - Station Log | | | | Details |
| CMR_GAIN_SL | CMR System Gain - Station Log | | | | Details |
| CMSN_SL | CMR Signal To Noise Ratio - Station Log | | | | Details |
| CNDL | Compensated Neutron Density | | | | Details |
| CNL | Compensated Neutron Log | | | | Details |
| CNl | Compensated Neutron log Messung | | | | Details |
| CNL | Compensated Neutron Log. | | | | Details |
| CNL | compensated neutron log Radioactive neutron source bombards the formation with high energy neutrons, which are slowed and captured by atoms of the formation The low energy neutrons are reflected back to the tool and counted The amount of neutrons returning is inversely proportional to the porosity of the formation | | | | Details |
| cnl | Contour | | | | Details |
| CNLC | China National Logging Company | | | | Details |
| CNLFD | CNL/FDC Log | | | | Details |
| CNLOPB | Canada-Newfoundland and Labrador Offshore Petroleum Board | | | | Details |
| CNLP | Compensated Neutron Log Porosity | | | | Details |
| CNLSC | CN Long Space Counts | | | | Details |
| cntl | control(s) | | | | Details |
| Coal | sedimentary rock, often highly naturally fractured, composed of thermally modified plant remains | | | | Details |
| COAL | Coal | | | | Details |
| COBLDN | Closing Of Business LoDoN | | | | Details |
| COBOL | Common Business Oriented Language | | | | Details |
| COBOL | Common Business-Oriented Language | | | | Details |
| COH(SLO,TIMEINT) | slowness time coherence | | | | Details |
| COIL | Compressibility of Oil | | | | Details |
| COL | Collar Log | | | | Details |
| COL | Cost Of Living | | | | Details |
| COL | COLOMBIA | | | | Details |
| COL | collar | | | | Details |
| COL | colored | | | | Details |
| COL | column | | | | Details |
| Col | ASTM Color American Standard Test Method | | | | Details |
| Col | color | | | | Details |
| COLA | Cost of Living Allowance | | | | Details |
| Cole | Jct Coleman Junction | | | | Details |
| coll | collect(ed)(ing)(ion) | | | | Details |
| Colloq | Colloquial (means informal) | | | | Details |
| COLPET | Colombian Petroleum Co. Colombia | | | | Details |
| colr | collar | | | | Details |
| Com AVL | Compensated Acoustic Velocity Log | | | | Details |
| Com AVL-G | Compensated Acoustic Velocity | | | | Details |
| Com AVL-N | Compensated Acoustic Velocity | | | | Details |
| COML | Compaction Log | | | | Details |
| coml | commercial | | | | Details |
| COMP_BUCKLING | The computed critical buckling load that | | | | Details |
| concl | conclusion | | | | Details |
| confl | conflict | | | | Details |
| congl | conglomerate (itic) | | | | Details |
| congl | conglomerate | | | | Details |
| CONL | Contact | | | | Details |
| consol | consolidated | | | | Details |
| CORAL | Cost Reduction Alliance Malaysia | | | | Details |
| CORL | Correlation | | | | Details |
| CORLG | Correlation Log | | | | Details |
| correl | correlation, correlated | | | | Details |
| correl | correlation | | | | Details |
| CPCL | Chennai Petroleum Corp. Ltd. India | | | | Details |
| CPEL | Corrosion And Protection Evaluation Log | | | | Details |
| CPL | Computed Porosity | | | | Details |
| CPLB | Constant Pressure Lower Boundary | | | | Details |
| cplg | coupling | | | | Details |
| CPLT | CTS Production Logging Tool | | | | Details |
| CPNL | Correction to Limestone Neutron Porosity | | | | Details |
| Crbly | crumbly | | | | Details |
| CRDL | cradle(s) | | | | Details |
| CRL | Cost Recovery Limit | | | | Details |
| CRL | Coloration | | | | Details |
| Crpxl | cryptocrystalline | | | | Details |
| crs-xln | coarse crystalline | | | | Details |
| crypto-xln | cryptocrystalline | | | | Details |
| Crystal | crystals | | | | Details |
| CrystalSeal | See PGS | | | | Details |
| CS - Filter | Con-Slot Filter | | | | Details |
| CSFL | SFL Conductivity | | | | Details |
| CSL | county school lands | | | | Details |
| CSL | center section line | | | | Details |
| CSQL | Compressive Strength Quicklook | | | | Details |
| CSUL | ECS Capture Sulfur Relative Yield | | | | Details |
| CTL | Coal-to-liquid conversion | | | | Details |
| CTL | coiled tubing logging | | | | Details |
| CTL | Cement Top Location | | | | Details |
| CTL | Scattered Gamma Ray | | | | Details |
| CTL | Cemotop | | | | Details |
| CTL | Time Lapse | | | | Details |
| CTLF | Coiled Tubing Lift Frame | | | | Details |
| CTLF | compensated tension lift frame | | | | Details |
| Ctlmn | Cattleman | | | | Details |
| culv | culvert | | | | Details |
| Cut Oil | cutting oil | | | | Details |
| Cut Oil | cutting oil inactive-sulfurize | | | | Details |
| Cut Oil Act | cutting oil active-sulfurized-dark | | | | Details |
| Cut Oil Act | cutting oil active-sulfurized-transparent | | | | Details |
| Cut Oil Sol | cutting oil soluble | | | | Details |
| Cut Oil St Mrl | cutting oil straight mineral | | | | Details |
| Cutl | Cutler | | | | Details |
| CVBL | Cumulative Volume Balance | | | | Details |
| CVEL | Cable Velocity | | | | Details |
| CVO0_DL | Corrected Velocity Oil Bubble | | | | Details |
| CVO1_DL | Corrected Velocity Oil Bubble | | | | Details |
| CVO2_DL | Corrected Velocity Oil Bubble | | | | Details |
| CVO3_DL | Corrected Velocity Oil Bubble | | | | Details |
| CVO4_DL | Corrected Velocity Oil Bubble | | | | Details |
| CVO5_DL | Corrected Velocity Oil Bubble | | | | Details |
| CVPL | Cumulated Volume from Porosity to | | | | Details |
| CVRL | Caliper Corrected Voltage Ratio-Long | | | | Details |
| CVW0_DL | Corrected Velocity Water Bubble | | | | Details |
| CVW1_DL | Corrected Velocity Water Bubble | | | | Details |
| CVW2_DL | Corrected Velocity Water Bubble | | | | Details |
| CVW3_DL | Corrected Velocity Water Bubble | | | | Details |
| CVW4_DL | Corrected Velocity Water Bubble | | | | Details |
| CVW5_DL | Corrected Velocity Water Bubble | | | | Details |
| CW2L | CEQL W2Ri Low Barycenter | | | | Details |
| CW3L | CEQL W3Ri Low Barycenter | | | | Details |
| CWEL | Curvature of the Well | | | | Details |
| CWL | Cyberlook Wellsite Camp | | | | Details |
| CWL | Current Wellhead Slurry Density | | | | Details |
| CWLR | Current Wellhead Slurry Flowrate | | | | Details |
| CWLV | Current Wellhead Slurry Volume | | | | Details |
| Cxln | coarsely crystalline | | | | Details |
| CYBLK | Cyberlook Log | | | | Details |
| Cycl | cyclone | | | | Details |
| Cycl | canc. Cyclamina cancellata | | | | Details |
| cyl | cylinder | | | | Details |
| CYL | Cyberlock | | | | Details |
| CYL | cylindrical | | | | Details |
| CYLDT | Litho-Density Quicklook | | | | Details |
| CYPL | Production Logging Quicklook | | | | Details |
| CZDL | Compensated Z-Densilog | | | | Details |
| CZO0_DL | Corrected Oil Superficial Velocity | | | | Details |
| CZO1_DL | Corrected Oil Superficial Velocity | | | | Details |
| CZO2_DL | Corrected Oil Superficial Velocity | | | | Details |
| CZO3_DL | Corrected Oil Superficial Velocity | | | | Details |
| CZO4_DL | Corrected Oil Superficial Velocity | | | | Details |
| CZO5_DL | Corrected Oil Superficial Velocity | | | | Details |
| CZW0_DL | Corrected Water Superficial Velocity | | | | Details |
| CZW1_DL | Corrected Water Superficial Velocity | | | | Details |
| CZW2_DL | Corrected Water Superficial Velocity | | | | Details |
| CZW3_DL | Corrected Water Superficial Velocity | | | | Details |
| CZW4_DL | Corrected Water Superficial Velocity | | | | Details |
| CZW5_DL | Corrected Water Superficial Velocity | | | | Details |
| d/bbl | day per barrel | | | | Details |
| D/L | density log | | | | Details |
| D1G1_DL | MRDP 1 Gain for Multiplexer Channel 0 to 3 None | | | | Details |
| D1G2_DL | MRDP 1 Gain for Multiplexer Channel 4 to 7 None | | | | Details |
| D1LD | HNGS Detector 1 Low Level Discriminator | | | | Details |
| D1LN | HNGS Detector 1 Low Level Discriminator | | | | Details |
| D1LP | HNGS Detector 1 Low Level Discriminator | | | | Details |
| D1LS | HNGS Detector 1 Board Latch SLM Status | | | | Details |
| D1TF_DL | MRDP 1 Temperature Frequency Offset | | | | Details |
| D1TH_DL | MRDP 1 Horizontal Strain Gauge Temperature Temperature | | | | Details |
| D1TR_DL | MRDP 1 Fluid Resistivity in Temperature | | | | Details |
| D1TS_DL | MRDP 1 Sink Strain Gauge Temperature | | | | Details |
| D2G1_DL | MRDP 2 Gain for Multiplexer Channel 0 to 3 None | | | | Details |
| D2G2_DL | MRDP 2 Gain for Multiplexer Channel 4 to 7 None | | | | Details |
| D2LD | HNGS Detector 2 Low Level Discriminator | | | | Details |
| D2LN | HNGS Detector 2 Low Level Discriminator | | | | Details |
| D2LP | HNGS Detector 2 Low Level Discriminator | | | | Details |
| D2LS | HNGS Detector 2 Board Latch SLM Status | | | | Details |
| D2TF_DL | MRDP 2 Temperature Frequency Offset | | | | Details |
| D2TH_DL | MRDP 2 Horizontal Strain Gauge Temperature Temperature | | | | Details |
| D2TR_DL | MRDP 2 Fluid Resistivity in Temperature | | | | Details |
| D2TS_DL | MRDP 2 Sink Strain Gauge Temperature | | | | Details |
| D3G1_DL | MRDP 3 Gain for Multiplexer Channel 0 to 3 None | | | | Details |
| D3G2_DL | MRDP 3 Gain for Multiplexer Channel 4 to 7 None | | | | Details |
| D3TF_DL | MRDP 3 Temperature Frequency Offset | | | | Details |
| D3TH_DL | MRDP 3 Horizontal Strain Gauge Temperature Temperature | | | | Details |
| D3TR_DL | MRDP 3 Resistivity Temperature | | | | Details |
| D3TS_DL | MRDP 3 Sink Strain Gauge Temperature | | | | Details |
| DAC1_DL | MRDP 1 Acquisition Command Echo | | | | Details |
| DAC2_DL | MRDP 2 Acquisition Command Echo | | | | Details |
| DAC3_DL | MRDP 3 Acquisition Command Echo | | | | Details |
| DAL | Digital Acoustilog | | | | Details |
| DAL | Acoustilog | | | | Details |
| DALP | Alpha Factor for Alpha Processing | | | | Details |
| DALT | Theoretical DWAL Log | | | | Details |
| Dbl | Double | | | | Details |
| DBL SKIN | DouBLe SKINned | | | | Details |
| DBLI | Distance to Barycenter of Lithofacies | | | | Details |
| DCAL | Differential Caliper Log | | | | Details |
| DCAL | dual caliper log | | | | Details |
| DCAL | Diff.Caliper | | | | Details |
| DCAL | Differential Caliper | | | | Details |
| DCALI | Dual Caliper Log | | | | Details |
| DCBL | Synthetic CBL from Discriminated | | | | Details |
| DCCL | Casing Collar Locator Depth | | | | Details |
| DCL | Dielectric Constant Log | | | | Details |
| DCLA | Differential Caliper, Real-Time | | | | Details |
| DCLAY | dry clay | | | | Details |
| DCLSP | digging slush pits | | | | Details |
| DCLV | DC Low Voltage | | | | Details |
| DDFL | Doubtful Data Flag | | | | Details |
| DDL | Daily Drilling Log | | | | Details |
| DDL | Dual Detector Log | | | | Details |
| DDNL | Dual Det. Neutron Life Log | | | | Details |
| decl | decline | | | | Details |
| DECL | DIT-E Command Loopback Word | | | | Details |
| defl | deflection | | | | Details |
| Del R | Del Rio | | | | Details |
| DEL2 | Dielectric Log - 200 Mhz | | | | Details |
| DEL2 | Dielectric Log- 200 MHz | | | | Details |
| DEL2 | Dielectric Log - 200 Mhz | | | | Details |
| DEL4 | Dielectric Log - 47 Mhz | | | | Details |
| DEL4 | Dielectric Log – 47 MHz | | | | Details |
| DEL4 | Dielectric Log - 47 Mhz | | | | Details |
| Dela | Delaware | | | | Details |
| DELEK | Delek the Israel Fuel Corp. Ltd. Israel | | | | Details |
| DELT | Travel Time Interval between Successive | | | | Details |
| DELTA | Delta- Tlog | | | | Details |
| DELTA_B0 | Delta B0 | | | | Details |
| DELTA_B0_SL | Delta B0 - Station Log | | | | Details |
| delv | delivery(ed)(ability) | | | | Details |
| delv | pt delivery point | | | | Details |
| DELY | DELiverY | | | | Details |
| DELZ | Depth Interval between Successive Shots | | | | Details |
| DENL | Density | | | | Details |
| DENL | Density Log | | | | Details |
| depl | depletion | | | | Details |
| DEPL | Depleted | | | | Details |
| desalt | deslater | | | | Details |
| DESFL | Deep Induction SFL Log | | | | Details |
| DESL | Delta String Length | | | | Details |
| desulf | desulfurizer | | | | Details |
| devel | develop (ed) (ment) | | | | Details |
| devel | develop(ed)(ment) | | | | Details |
| DEVI_TL | Hole Deviation | | | | Details |
| DEVLG | Deviation Log | | | | Details |
| DFELAT | Drill Floor Elevation referenced to Lowest Astronominal Tide | | | | Details |
| DFL | Drilling Fluid Loss | | | | Details |
| DFL | Dynamic Fluid Level | | | | Details |
| DFR1_DL | MRDP 1 Fluid Resistivity at Flow Line | | | | Details |
| DFR2_DL | MRDP 2 Fluid Resistivity at Flow Line | | | | Details |
| DFR3_DL | MRDP 3 Fluid Resistivity at Flow Line | | | | Details |
| DFS_DL | Full Scale Data | | | | Details |
| DGL | Vertical Depth Relative to Ground Level | | | | Details |
| DGL | Permanent Production Packer, High Pressure, Utilizes J-Latch seal assy | | | | Details |
| DGLF | Permanent Production Packer, High Pressure, Large ID, Utilizes J-Latch seal assy | | | | Details |
| DGLG | Dog-Leg Severity | | | | Details |
| DGLV | dummy gas lift valve | | | | Details |
| DGTL | digital | | | | Details |
| DGXL | Permanent Production Packer, Medium Pressure, Big Bore, Utilizes J-Latch seal assy | | | | Details |
| DGXL | High Pressure Permanent Production Packer, Big Bore, Utilizes J-Latch seal assy | | | | Details |
| DGXLA | Permanent Production Packer, Medium Pressure, Big Bore, Utilizes Baker style Anchor Latch seal system that snaps in and screws out | | | | Details |
| DHA1_DL | MRDP 1 Horizontal Strain Gauge Automatic | | | | Details |
| DHA2_DL | MRDP 2 Horizontal Strain Gauge Automatic | | | | Details |
| DHA3_DL | MRDP 3 Horizontal Strain Gauge Automatic | | | | Details |
| DHC_ERR_SL | Downhole Controller Error Flags - Station | | | | Details |
| DHF1_DL | MRDP 1 Horizontal Strain Gauge Frequency | | | | Details |
| DHF2_DL | MRDP 2 Horizontal Strain Gauge Frequency | | | | Details |
| DHF3_DL | MRDP 3 Horizontal Strain Gauge Frequency | | | | Details |
| DHL | Permanent Production Packer, High Pressure, Small ID | | | | Details |
| DHP1_DL | MRDP 1 Horizontal Strain Gauge Pressure | | | | Details |
| DHP2_DL | MRDP 2 Horizontal Strain Gauge Pressure | | | | Details |
| DHP3_DL | MRDP 3 Horizontal Strain Gauge Pressure | | | | Details |
| DIAG_DL | Diagnostics | | | | Details |
| DIAL | Differential Absorption Light Detection and Ranging | | | | Details |
| DIAL | Dia-Log | | | | Details |
| dichlor | dichloride | | | | Details |
| DICHTL | Kondensatdichte (Tonne/m3) | gas density | | | Details |
| DICOL | Distribuidora de Combustiveis e Lubrificantes da Guinea Bissau Lda. Portugal | | | | Details |
| DIEL | Dielectric Log | | | | Details |
| DIEL | dielectric | | | | Details |
| DIELC | Dielectric_Constant | | | | Details |
| diethyl | diethylene | | | | Details |
| DIFL | Dual Induction Focused Log | | | | Details |
| DIFL | dual injection focus log | | | | Details |
| DIFL | Dual Induction-Focused Log | | | | Details |
| DIFL | Dual Induction Focused Log | | | | Details |
| DIFL/GR | Dual Induction Focused Log Gamma Ray | | | | Details |
| DIGL | Dual Induction Gamma Log | | | | Details |
| DIL | Dual Induction Log | | | | Details |
| DIL | Dual Induction Laterolog | | | | Details |
| DIL | Dual Induction-Laterologging | | | | Details |
| DIL | Dual Induction SFL Log | | | | Details |
| DIL | Dual Induction Dual Induction Log | | | | Details |
| DILB | Dual Induction BHC Log | | | | Details |
| DILL | Dual Induction Laterolog | | | | Details |
| DILL | Dual Induction Lateral/Dual Induction Focus | | | | Details |
| DILL | Dual Induction Lateral | | | | Details |
| DILLS | Dual Induction Log-LLS | | | | Details |
| DILSL | Dual Induction Log-SLS | | | | Details |
| dilut | diluted | | | | Details |
| DIPLP | Dip Lithology Pressure Log | | | | Details |
| DISFL | DISFL DBHC Gamma Ray Log | | | | Details |
| DISL | LDS Long-Spaced Low Level Discriminator | | | | Details |
| displ | displaced, displacement | | | | Details |
| DL | Development Licence (United Kingdom), a type of onshore licence issued before 1996 | | | | Details |
| DL | Differential Liberation | | | | Details |
| DL | Drillers Log | | | | Details |
| dl | deciliter | | | | Details |
| DL | drilling line | | | | Details |
| DL | Diamond Lug Pads | | | | Details |
| dl | dull | | | | Details |
| DLA | Development Lease Area | | | | Details |
| DLA | Dynamic Load Analysis | | | | Details |
| DLC | dual lower tubing | | | | Details |
| DLC | Direct Line Compensator | | | | Details |
| DLCs | Direct Line Compensators | | | | Details |
| DLCS | DLC Status | | | | Details |
| DLD | Dynamic Limit Diagram | | | | Details |
| DLE | Differential Liberation Equation (see comment - type of PVT analysis) | | | | Details |
| DLIM | Dolomitic Limestone Facies | | | | Details |
| DLIS | Digital Log Information Standard | | | | Details |
| DLIST | Dip List Log | | | | Details |
| DLL | Dual Laterolog | | | | Details |
| DLL | Dynamic Link Library | | | | Details |
| DLL | Dual Laterolog (Simultaneous) | | | | Details |
| DLL | detection level limited | | | | Details |
| DLL | Dual Laterlog | | | | Details |
| DLL | Dual Laterolog Log | | | | Details |
| DLL | Dual Laterolog | | | | Details |
| DLL/MSFL | Dual Laterolog/Microspherically Focused | | | | Details |
| DLLD | Derivative of LLD with respect to depth | | | | Details |
| DLLS | First derivative of LLS with respect to | | | | Details |
| DLLT | Dual Laterolog | | | | Details |
| DLOG | Dot Log | | | | Details |
| DLOSP | Dropping Last Outwards Sea Pilot (Norway) | | | | Details |
| dlr | dealer | | | | Details |
| DLS | Dog-Leg Severity (directional drilling) | | | | Details |
| DLS | Dog Leg Severity | | | | Details |
| DLS | dogleg severity | | | | Details |
| DLS | Dog Leg Severity | | | | Details |
| DLT | Dual Laterolog | | | | Details |
| DLT | A kind of hydraulic set packer from Weatherford | | | | Details |
| DLT | dual lower tubing | | | | Details |
| DLT | Dual Laterolog Tool | | | | Details |
| DLT | Design Life Time | | | | Details |
| DLTA | Caliper Receiver Look-in Error | | | | Details |
| DLTD | TRUE if the survey has been deleted. FALSE Flag | | | | Details |
| dly | Daily Data | | | | Details |
| DMF1_DL | MRDP 1 Frequency in Multiplexer Channels | | | | Details |
| DMF2_DL | MRDP 2 Mux Frequency in Multiplexer | | | | Details |
| DMF3_DL | MRDP 3 Frequency in Multiplexer Channels | | | | Details |
| DMGL | Digital Magneline | | | | Details |
| dml | demolition | | | | Details |
| DMV_DL | Downhole Motor Voltage | | | | Details |
| DNC1_DL | MRDP 1 Difference Frequency in Clock | | | | Details |
| DNC2_DL | MRDP 2 Difference Frequency in Clock | | | | Details |
| DNC3_DL | MRDP 3 Difference Frequency in Clock | | | | Details |
| DNL | dual porosity CNL | | | | Details |
| DNL | Dual-Energy Neutron Log | | | | Details |
| DNL | Dual Porosity Compensated Neutron | | | | Details |
| DNLN | Differential Non Linearity Number of | | | | Details |
| DNLV | Downhole Noise Level on VDL Subcycle | | | | Details |
| DNM1_DL | MRDP 1 Difference Frequency in Clock | | | | Details |
| DNM2_DL | MRDP 2 Difference Frequency in Clock | | | | Details |
| DNM3_DL | MRDP 3 Difference Frequency in Clock | | | | Details |
| DNS1_DL | MRDP 1 Difference Frequency in Quartz | | | | Details |
| DNS2_DL | MRDP 2 Difference Frequency in Quartz | | | | Details |
| DNS3_DL | MRDP 3 Difference Frequency in Quartz | | | | Details |
| DOBLDG | dock operating building | | | | Details |
| DOFL | Navigation Distance Off Line | | | | Details |
| DOL | Dolomite | | | | Details |
| DOL | Dolomite | | | | Details |
| dolc | dolomitic | | | | Details |
| DOLI | Volume of Anhydrite, Salt, Sand, | | | | Details |
| dolo | dolomite | | | | Details |
| dolo | dolomite(ic) | | | | Details |
| DOLSP | Dropping Off Last Sea Pilot ( Norway) | | | | Details |
| dolst | dolstone | | | | Details |
| DPC1_DL | MRDP 1 Quartz Pressure Compensation | | | | Details |
| DPC2_DL | MRDP 2 Quartz Pressure Compensation | | | | Details |
| DPC3_DL | MRDP 3 Quartz Pressure Compensation | | | | Details |
| DPIL | Dual Phase Induction Log | | | | Details |
| DPIL | Dual Phase Induction Log | | | | Details |
| DPL | Dual Propagation Log | | | | Details |
| DPL | Drill Pipe Electric Log | | | | Details |
| DPL | Deep Propagation Log | | | | Details |
| DPL | Density Porosity Limestone | | | | Details |
| DPLD | Differential Pressure Levitated Device (or Vehicle) | | | | Details |
| DPLS | LDS Long-Spaced Deadtime Pulse Countrate | | | | Details |
| DP_L | Density porosity, Left | | | | Details |
| DQLC | Dipmeter Quality Control Log | | | | Details |
| DQP1_DL | MRDP 1 Quartz Pressure | | | | Details |
| DQP2_DL | MRDP 2 Quartz Pressure | | | | Details |
| DQP3_DL | MRDP 3 Quartz Pressure | | | | Details |
| DQS1_DL | MRDP 1 Quartz Gauge Status | | | | Details |
| DQS2_DL | MRDP 2 Quartz Gauge Status | | | | Details |
| DQS3_DL | MRDP 3 Quartz Gauge Status | | | | Details |
| DQT1_DL | MRDP 1 Quartz Temperature | | | | Details |
| DQT2_DL | MRDP 2 Quartz Temperature | | | | Details |
| DQT3_DL | MRDP 3 Quartz Temperature | | | | Details |
| DRA1_DL | MRDP 1 Resistivity Automatic Compensation | | | | Details |
| DRA2_DL | MRDP 2 Resistivity Automatic Compensation | | | | Details |
| DRA3_DL | MRDP 3 Resistivity Automatic Compensation | | | | Details |
| DRF1_DL | MRDP 1 Frequency for Fluid Resistivity | | | | Details |
| DRF2_DL | MRDP 2 Frequency for Fluid Resistivity | | | | Details |
| DRF3_DL | MRDP 3 Frequency for Fluid Resistivity | | | | Details |
| DRGL | drilling | | | | Details |
| DRH1_DL | MRDP 1 Raw Horizontal Strain Gauge | | | | Details |
| DRH2_DL | MRDP 2 Raw Horizontal Strain Gauge | | | | Details |
| DRH3_DL | MRDP 3 Raw Horizontal Strain Gauge | | | | Details |
| DRHL | Bulk Density Correction, Left Quadrant | | | | Details |
| DRILLEX | Drilling Cost | | | | Details |
| DRL | Drilling Run | | | | Details |
| DRL | double random lengths | | | | Details |
| drl | drill | | | | Details |
| DRLCT | Drilling Chart | | | | Details |
| drld | drilled | | | | Details |
| drlg | drilling | | | | Details |
| DRLOG | Drilling Log | | | | Details |
| DRLPR | Drilling Proposal/Prog. Report | | | | Details |
| drlr | driller | | | | Details |
| DRQ1_DL | MRDP 1 Raw Quartz Pressure | | | | Details |
| DRQ2_DL | MRDP 2 Raw Quartz Pressure | | | | Details |
| DRQ3_DL | MRDP 3 Raw Quartz Pressure | | | | Details |
| DRR1_DL | MRDP 1 Raw Resistivity of Fluid | | | | Details |
| DRR2_DL | MRDP 2 Raw Resistivity of Fluid | | | | Details |
| DRR3_DL | MRDP 3 Raw Resistivity of Fluid | | | | Details |
| DRRL | Bulk Density Rotational Correction, Left | | | | Details |
| DRS1_DL | MRDP 1 Raw Sink Strain Gauge Pressure | | | | Details |
| DRS2_DL | MRDP 2 Raw Sink Strain Gauge Pressure | | | | Details |
| DRS3_DL | MRDP 3 Raw Sink Strain Gauge Pressure | | | | Details |
| DSA1_DL | MRDP 1 Sink Strain Gauge Automatic | | | | Details |
| DSA2_DL | MRDP 2 Sink Strain Gauge Automatic | | | | Details |
| DSA3_DL | MRDP 3 Sink Strain Gauge ACOM Coefficients None | | | | Details |
| DSF1_DL | MRDP 1 Sink Strain Gauge Frequency | | | | Details |
| DSF2_DL | MRDP 2 Sink Strain Gauge Frequency | | | | Details |
| DSF3_DL | MRDP 3 Sink Strain Gauge Frequency | | | | Details |
| DSL | Digital Slick Line (new slick line by SLB can be used insteade of W/L) | | | | Details |
| DSL | diesel | | | | Details |
| DSL | Dual Spacing Log | | | | Details |
| dsl | diesel(oil) | | | | Details |
| DSL | Dig ital Spectralog | | | | Details |
| DSL | Drilling Section Leader | | | | Details |
| DSLT | Digitizing Sonic Logging | | | | Details |
| DSLT | Digitizing Sonic Logging Tool | | | | Details |
| DSP1_DL | MRDP 1 Sink Strain Gauge Pressure | | | | Details |
| DSP2_DL | MRDP 2 Sink Strain Gauge Pressure | | | | Details |
| DSP3_DL | MRDP 3 Sink Strain Gauge Pressure | | | | Details |
| DSPPS_SL | DSP Preprocess Status - Station Log | | | | Details |
| DSPPT_SL | Digital Signal Processing Time - Station | | | | Details |
| DSP_ERR_SL | Digital Signal Processor Error Flags - | | | | Details |
| DSTL | Drill Stem Test Log | | | | Details |
| dstl | distillate | | | | Details |
| DTAL | Deutsche Transalpine Oelleitung GmbH | | | | Details |
| DTHL | Delta-T High Resolution Lower Transmitter | | | | Details |
| DtL | Drilling The Limit | | | | Details |
| DTL | Drilling Time Log | | | | Details |
| DTL | Long Space Sonic Transit Time | | | | Details |
| DTL | Delta-T Long Spacing | | | | Details |
| DTLC | Delta-T Long Compressional | | | | Details |
| DTLF | Delta-T Long Spacing Far | | | | Details |
| DTLL | Lower Limit of Sonic Response when | | | | Details |
| DTLM | Delta-T from Lower Transmitter (Module) | | | | Details |
| DTLN | Delta-T Long Spacing Near | | | | Details |
| DTLS | Delta-T Long Shear | | | | Details |
| DTLT | Delta-T from Lower Transmitter (Down Hole) Compressional_Slowness | | | | Details |
| DTPL | Delta TPL (Environmental Corrections) | | | | Details |
| DTZL | Differential Tension Zero Line | | | | Details |
| Dubal | Dubai Aluminium Company | | | | Details |
| dull | dull | | | | Details |
| DVL | develop | | | | Details |
| DVL1 | Digital Vertiline 4-1/2 in. (114mm) | | | | Details |
| DVL2 | Digital Vertiline 5-1/2 in. (140mm) | | | | Details |
| DVL3 | Digital Vertiline 7 in. (178mm) | | | | Details |
| DVL4 | Digital Vertiline 8-5/8 8 on. (219mm) | | | | Details |
| DVP1_DL | MRPS 1 Depth at Vertical Probe | | | | Details |
| DVP2_DL | MRPS 2 Depth at Vertical Probe | | | | Details |
| DVP3_DL | MRPS 3 Depth at Vertical Probe | | | | Details |
| DVTL | Digital Vertiline | | | | Details |
| DWAL | Dry Weight Percent Aluminum | | | | Details |
| DWFD_TL | Deviation-corrected Well Fluid Density | | | | Details |
| DWL1 | Long Spacing Density Window 1 | | | | Details |
| DWL2 | Long Spacing Density Window 2 | | | | Details |
| DWL3 | Long Spacing Density Window 3 | | | | Details |
| DWL4 | Long Spacing Density Window 4 | | | | Details |
| DWL5 | Long Spacing Density Window 5 | | | | Details |
| DWL6 | Long Spacing Density Window 6 | | | | Details |
| DWL7 | Long Spacing Density Window 7 | | | | Details |
| DWLA | DST LINC* WireLine Adapter (* mark of SLB ) - UPP versatility | | | | Details |
| DWLTI | Days Without Lost Time Injury | | | | Details |
| DWQL | Dual Water Quicklook Log | | | | Details |
| DZER_DL | Zero Data | | | | Details |
| E of W/L | east of west line | | | | Details |
| E/BL | east boundary line | | | | Details |
| E/L | east line | | | | Details |
| E1LD | AGS Detector 1 Low Level Discriminator DAC None | | | | Details |
| E1LN | AGS Detector 1 Low Level Discriminator | | | | Details |
| E1LP | AGS Detector 1 Low Level Discriminator | | | | Details |
| E1LS | AGS Detector 1 Board Latch SLM Status | | | | Details |
| E2LD | AGS Detector 2 Low Level Discriminator DAC None | | | | Details |
| E2LN | AGS Detector 2 Low Level Discriminator | | | | Details |
| E2LP | AGS Detector 2 Low Level Discriminator | | | | Details |
| E2LS | AGS Detector 2 Board Latch SLM Status | | | | Details |
| Earls | Earlsboro | | | | Details |
| EB10_DL | MRSC 10 Error Band | | | | Details |
| EB11_DL | MRSC 11 Error Band | | | | Details |
| EB12_DL | MRSC 12 Error Band | | | | Details |
| EB1_DL | MRSC 1 Error Band | | | | Details |
| EB2_DL | MRSC 2 Error Band | | | | Details |
| EB3_DL | MRSC 3 Error Band | | | | Details |
| EB4_DL | MRSC 4 Error Band | | | | Details |
| EB5_DL | MRSC 5 Error Band | | | | Details |
| EB6_DL | MRSC 6 Error Band | | | | Details |
| EB7_DL | MRSC 7 Error Band | | | | Details |
| EB8_DL | MRSC 8 Error Band | | | | Details |
| EB9_DL | MRSC 9 Error Band | | | | Details |
| ECATWW-L | Wireline department in GAE | | | | Details |
| ECCL | ECS Low Level Discriminator Control Loop | | | | Details |
| ECHO_AMP_SL | Echo Amplitudes - Station Log | | | | Details |
| ECHO_BASE_SL | Echo Baseline - Station Log | | | | Details |
| ECL | Eclipse | | | | Details |
| ECL | Exploration Consultants Limited | | | | Details |
| ECLA | Eddy Current, Lower Array | | | | Details |
| ECOPETROL | Empresa Colombiana de Petroleos Colombia | | | | Details |
| Ed lm | Edwards lime | | | | Details |
| EDLD | ECS Low Level Discriminator DAC Value | | | | Details |
| EDLN | ECS Low Level Discriminator Negative Count Count | | | | Details |
| EDLP | ECS Low Level Discriminator Positive Count Count | | | | Details |
| EDLS | ECS Board Latch SLM Status | | | | Details |
| EDSL | ECS AUX Board Latch SLM Status | | | | Details |
| EEPAL | Exxon Exploration and Production Azerbaijan Limited | | | | Details |
| EFCL | Epithermal Far Counts After Limestone | | | | Details |
| effl | effluent | | | | Details |
| EFL | Electrical Flying Lead | | | | Details |
| EFL | End of Field Life | | | | Details |
| Egl | Eagle | | | | Details |
| EGL | Elevation, Ground Level | | | | Details |
| EGLV | Electric Gas Lift Valve | | | | Details |
| Eglwd | Englewood | | | | Details |
| EgyptAlum | Egypt Aluminium | | | | Details |
| EILNZ | Energy Infrastructure Limited | | | | Details |
| EIVAL | Sociedad de Empreendimentos, Investimentos e Armazenagem de Gases S.A. Portugual | | | | Details |
| EL | Electric Log | | | | Details |
| EL | Effluent Line | | | | Details |
| EL | elevation | | | | Details |
| EL | elevation(height) | | | | Details |
| EL | Electrolog | | | | Details |
| EL | Explosive Limit | | | | Details |
| EL | Economical limit | | | | Details |
| el gr | elevation ground | | | | Details |
| EL&P | exploration, land and production | | | | Details |
| EL/T | electronic log tops | | | | Details |
| EL1 | Calibration Eddy Current, Lower Array Pad | | | | Details |
| EL1_HR | Eddy Current Lower Pad-1 HiRes | | | | Details |
| EL1_HRN | Eddy Current Lower Pad-1 HiRes Nor | | | | Details |
| EL1_NO | Eddy Current Lower Pad-1 Nor | | | | Details |
| EL2 | Calibration Eddy Current, Lower Array Pad | | | | Details |
| EL2_HR | Eddy Current Lower Pad-2 HiRes | | | | Details |
| EL2_HRN | Eddy Current Lower Pad-2 HiRes Nor | | | | Details |
| EL2_NO | Eddy Current Lower Pad-2 Nor | | | | Details |
| EL3 | Calibration Eddy Current, Lower Array Pad | | | | Details |
| EL3_HR | Eddy Current Lower Pad-3 HiRes | | | | Details |
| EL3_HRN | Eddy Current Lower Pad-3 HiRes Nor | | | | Details |
| EL3_NO | Eddy Current Lower Pad-3 Nor | | | | Details |
| EL4 | Calibration Eddy Current, Lower Array Pad | | | | Details |
| EL4_HR | Eddy Current Lower Pad-4 HiRes | | | | Details |
| EL4_HRN | Eddy Current Lower Pad-4 HiRes Nor | | | | Details |
| EL4_NO | Eddy Current Lower Pad-4 Nor | | | | Details |
| EL5 | Calibration Eddy Current, Lower Array Pad | | | | Details |
| EL5_HR | Eddy Current Lower Pad-5 HiRes | | | | Details |
| EL5_HRN | Eddy Current Lower Pad-5 HiRes Nor | | | | Details |
| EL5_NO | Eddy Current Lower Pad-5 Nor | | | | Details |
| EL6 | Calibration Eddy Current, Lower Array Pad | | | | Details |
| EL6_HR | Eddy Current Lower Pad-6 HiRes | | | | Details |
| EL6_HRN | Eddy Current Lower Pad-6 HiRes Nor | | | | Details |
| EL6_NO | Eddy Current Lower Pad-6 Nor | | | | Details |
| ELA | Ellipse Long Axis | | | | Details |
| ELAN | Elemental Analysis program (SLB) | | | | Details |
| Elb | Elbert | | | | Details |
| ELB | elbow | | | | Details |
| ELC | Europe Learning Center (Schlumberger's base in France) | | | | Details |
| ELE | Element concentration | | | | Details |
| elec | electric(al) | | | | Details |
| Elec/MAG | electromagnetic | | | | Details |
| elem | element, elementary | | | | Details |
| elev | elevation, elevator | | | | Details |
| ELEV | Elevation Source | | | | Details |
| ELF | Elf Aquitaine (now TotalFinaElf ) France | | | | Details |
| ELF | NORGE Elf Petroleum Norge A/S Norway | | | | Details |
| ELG | effluent limitation guidelines | | | | Details |
| Elg | Elgin | | | | Details |
| ELG | Erdöl-Lagergesellschaft m.b.H. | | | | Details |
| ELGI | Eotvos Lorand Geofizikai Intezet (Geophysical Institute of Hungary) Hungary | | | | Details |
| ELIM | eliminate(tor)(ed) | | | | Details |
| ell(s) | elbow(s) | | | | Details |
| Ellen | Ellenburger | | | | Details |
| Elm | Elmont | | | | Details |
| ELM | Electromagnetic | | | | Details |
| ELMD | electric line measured depth | | | | Details |
| ELMF | Enhanced Liquid Measurement Flowmeter | | | | Details |
| ELMT | Exploration License Management System | | | | Details |
| ELNG | Egypt LNG | | | | Details |
| ELOT | Extended Leak Off Test | Same as XLOT | | | Details |
| ELPS | Channels to produce Ellipses on FracHite | | | | Details |
| ELPT | EPT Lossless Propagation Time | | | | Details |
| ELQR | Extremely Low Quality Reservoir | | | | Details |
| ELS | Überspülrohr mit Upset | | | | Details |
| ELSM | ECS Linear Solver Mode | | | | Details |
| ELT | Economic Limit Test | | | | Details |
| ELT | Electric log tops | | | | Details |
| EMALCO | Empresa Almacenadora de Combustibles Ltda. Chile | | | | Details |
| EMBL | Emirates Merchant Bank Ltd. | | | | Details |
| empl | employee | | | | Details |
| emul | emulsion | | | | Details |
| ENACOL | Empresa Nacionale de Combustiveis, SARL Cape Verde | | | | Details |
| encl | enclosure | | | | Details |
| ENCL | Epithermal Near Counts After Limestone | | | | Details |
| enl | enlarged | | | | Details |
| ENL | Entnahmeleistung | Production performance | | | Details |
| enml | enamel | | | | Details |
| ENTELEC | Energy Telecommunications & Electrical Association | | | | Details |
| EOFL | End of Field Life | | | | Details |
| EOL | end of line | | | | Details |
| EOL | End Of Lifetime | | | | Details |
| EPILNZ | Energy Petroleum Investments Limited | | | | Details |
| EPL | EPL Log | | | | Details |
| EPL | Einpressleistung | Injecting performance | | | Details |
| EPLF | E&P Leadership Forum | | | | Details |
| EPLG | Epilog | | | | Details |
| EPLPC | EPL-PCD-SGR Log | | | | Details |
| EPLT | E&P Leadership Team | | | | Details |
| EPTLNZ | Energy Petroleum Taranaki Limited | | | | Details |
| ES-ULS | Salt Dome Profiling | | | | Details |
| et al | and others | | | | Details |
| etal | et al. (and others) | | | | Details |
| ethyle | ethylene | | | | Details |
| ETIM_SL | Elapsed Logging Time | | | | Details |
| ETL | EMS Telemetry | | | | Details |
| eval | evaluate | | | | Details |
| EVLV | Traveling Block Altitude (Elevator level) | | | | Details |
| EXCL | EXCLusive | | | | Details |
| excl | excellent | | | | Details |
| EXL | or XL, Exploration Licence (United Kingdom), a type of onshore licence issued between the First Onshore Licensing Round (19 6) and the Sixth (1992) | | | | Details |
| expl | exploratory, exploration | | | | Details |
| EXPL | Exploration well | | | | Details |
| explos | explosive | | | | Details |
| EYLS | ECS Sum of Frame-by-Frame Yields | | | | Details |
| E’ly | easterly | | | | Details |
| F & L | fuels & lubricants | | | | Details |
| F2CL | RST Far IC Capture Chlorine Relative Yield Chlorine_Yield | | | | Details |
| F2CL_SIG | RST Far IC Capture Chlorine Relative Yield Uncertainty | | | | Details |
| FACIL | facility(ies) | | | | Details |
| fail | failure | | | | Details |
| FAIL_MODE | Failure Mode | | | | Details |
| FAL | Analysis Formation | | | | Details |
| FAL | Formation Analysis | | | | Details |
| FAL | Rwa Logging | | | | Details |
| Fall | Riv Fall River | | | | Details |
| FAMO_DL | Fluid Analyzer Mode (Depth Logging) | | | | Details |
| FANAL | Formation Analysis Sheet Log | | | | Details |
| FAOD_DL | Fluid Analyzer Optical Density Data (Depth None | | | | Details |
| FAT_DL | Fluid Analyzer Temperature (Depth Logging) Temperature | | | | Details |
| Fault | where rock splits or ruptures with associated movement occurs on either side | | | | Details |
| FBAC_SL | Background - Far Gates | | | | Details |
| FCAL | Single Axis Caliper | | | | Details |
| FCBL | Fluid Compensated CBL Amplitude | | | | Details |
| FCL | facility capacity limits | | | | Details |
| FCLK | Channel 1 N clock | | | | Details |
| FCNL | Far Detector Count Rate | | | | Details |
| FCOL | Fluid Coloration (see comment!) | | | | Details |
| FCOL | Fluid Coloration | | | | Details |
| FCOL_DL | Fluid Coloration (Depth Logging) | | | | Details |
| FCP1_DL | MRFC 1 Coarse Valve Position | | | | Details |
| FCP2_DL | MRFC 2 Coarse Valve Position | | | | Details |
| FCP3_DL | MRFC 3 Coarse Valve Position | | | | Details |
| FCVL | FBCC +5V supply | | | | Details |
| FDCNL | formation density compensated neutron log | | | | Details |
| FDFD_TL | Filtered Deviation-corrected Well Fluid | | | | Details |
| FDL | formation density log | | | | Details |
| FDLS | RST Far Detector Loop Status | | | | Details |
| FE/L | from east line | | | | Details |
| FEB1_DL | MRFC 1 Error Band | | | | Details |
| FEB2_DL | MRFC 2 Error Band | | | | Details |
| FEB3_DL | MRFC 3 Error Band | | | | Details |
| FEL | Front End Loading (AFEs & Projects) | | | | Details |
| fel | from east line | | | | Details |
| FEL | Front End Loading | | | | Details |
| FEL | Front-End Loading | | | | Details |
| FELA | Federal Employers Liability Act | | | | Details |
| FELD | Feldspar | | | | Details |
| Fertil | Ruwais Fertilizer Industries | | | | Details |
| FERTIL | Ruwais Fertilizer Industries Ltd. Abu Dhabi | | | | Details |
| fexln | finelycrystaline | | | | Details |
| FFL | final fluid level | | | | Details |
| FFLAG | Float Flag | | | | Details |
| FFLS | Formation Factor for Long Spacing | | | | Details |
| FFP1_DL | MRFC 1 Fine Valve Position | | | | Details |
| FFP2_DL | MRFC 2 Fine Valve Position | | | | Details |
| FFP3_DL | MRFC 3 Fine Valve Position | | | | Details |
| FGEOL | Final Geological Report | | | | Details |
| FGL | Förder Gas Leitung | Gas Production Pipeline | | | Details |
| FGL | Fern Gas Leitung | Remote Gas Production Pipeline | | | Details |
| FGLR | formation GLR | | | | Details |
| FHPG_TL | Fractional part of HPGP | | | | Details |
| FIL | FIL Log | | | | Details |
| FIL | Sidewall Frac Log | | | | Details |
| FIL | Fracture Identification Log | | | | Details |
| filt | filtrate | | | | Details |
| fisl | fissile | | | | Details |
| FL | Fluid Loss | | | | Details |
| FL | Flying Lead (Subsea kit) | | | | Details |
| FL | F Log | | | | Details |
| FL | FLow Line | | | | Details |
| Fl | Financial | | | | Details |
| FL | Florida | | | | Details |
| FL | fluid level | | | | Details |
| FL | flashing | | | | Details |
| FL | floor | | | | Details |
| fl | fluid | | | | Details |
| FL | flush | | | | Details |
| FL | Flapper | | | | Details |
| FL | Flammability Limit | | | | Details |
| FL | Fluid Level | | | | Details |
| FL | Filling level | | | | Details |
| fl | flow | | | | Details |
| FL | Financial leverage | | | | Details |
| Fl-COC | flash point, Cleveland Open Cup | | | | Details |
| fl/ | flowed(ing) | | | | Details |
| FL/BD | flammable liquid building | | | | Details |
| FL/EC | Flux Leakage/Eddy Current tool | | | | Details |
| FL1 | Calibration Flux Leakage, Upper Array Pad | | | | Details |
| FL1_HR | Flux Leakage Lower Pad-1 HiRes | | | | Details |
| FL1_HRN | Flux Leakage Lower Pad-1 HiRes Nor | | | | Details |
| FL1_NO | Flux Leakage Lower Pad-1 Nor | | | | Details |
| FL2 | Calibration Flux Leakage, Upper Array Pad | | | | Details |
| FL2_HR | Flux Leakage Lower Pad-2 HiRes | | | | Details |
| FL2_HRN | Flux Leakage Lower Pad-2 HiRes Nor | | | | Details |
| FL2_NO | Flux Leakage Lower Pad-2 Nor | | | | Details |
| FL3 | Calibration Flux Leakage, Upper Array Pad | | | | Details |
| FL3_HR | Flux Leakage Lower Pad-3 HiRes | | | | Details |
| FL3_HRN | Flux Leakage Lower Pad-3 HiRes Nor | | | | Details |
| FL3_NO | Flux Leakage Lower Pad-3 Nor | | | | Details |
| FL4 | Calibration Flux Leakage, Upper Array Pad | | | | Details |
| FL4_HR | Flux Leakage Lower Pad-4 HiRes | | | | Details |
| FL4_HRN | Flux Leakage Lower Pad-4 HiRes Nor | | | | Details |
| FL4_NO | Flux Leakage Lower Pad-4 Nor | | | | Details |
| FL5 | Calibration Flux Leakage, Upper Array Pad | | | | Details |
| FL5_HR | Flux Leakage Lower Pad-5 HiRes | | | | Details |
| FL5_HRN | Flux Leakage Lower Pad-5 HiRes Nor | | | | Details |
| FL5_NO | Flux Leakage Lower Pad-5 Nor | | | | Details |
| FL6 | Calibration Flux Leakage, Upper Array Pad | | | | Details |
| FL6_HR | Flux Leakage Lower Pad-6 HiRes | | | | Details |
| FL6_HRN | Flux Leakage Lower Pad-6 HiRes Nor | | | | Details |
| FL6_NO | Flux Leakage Lower Pad-6 Nor | | | | Details |
| FLA | Four Letter Acronyms | | | | Details |
| FLA | Ferry Lake anhydrite | | | | Details |
| FLAG | flag | | | | Details |
| FLAG | General Indicator Flag | | | | Details |
| FLAP | fluid level above pump | | | | Details |
| flat | flattened | | | | Details |
| FLAT | Tooth flat | | | | Details |
| Flath | Flathead | | | | Details |
| FLB | foot-pound mass | | | | Details |
| FLBF | foot-pound force | | | | Details |
| FLC | Fluid Loss Control | | | | Details |
| FLD | Fluid Loss Device (Completion valve) | | | | Details |
| fld | failed | | | | Details |
| fld | feldspar(thic) | | | | Details |
| fld | field | | | | Details |
| FLD | full-length drift | | | | Details |
| fld | feldspathic | | | | Details |
| fldspr | feldspar | | | | Details |
| FLE | FLE time (Finland, Lithuania, Estonia) UTC+2 or +3 summertime (EEC: Eastern European Time) | | | | Details |
| FLEN | Flux Leakage, Enhanced | | | | Details |
| FLET | Flowline End Termination (AKA PLET) | | | | Details |
| flex | flexible | | | | Details |
| flg | flowing | | | | Details |
| FLG | Fluid Regime | | | | Details |
| flg(d)(s) | flange(ed)(es) | | | | Details |
| Flip | Flippen | | | | Details |
| FLIP_FILES | Contains names of FLIP files | | | | Details |
| FLIV | FlowLine Injection Valve | | | | Details |
| FLIV | Flowline Isolation Valve | | | | Details |
| FLK | FALKLAND ISLANDS (MALVINAS) | | | | Details |
| flk | flaky | | | | Details |
| flky | flaky | | | | Details |
| FLL | Falling Liquid Level | | | | Details |
| FLLA | Flux Leakage, Lower Array | | | | Details |
| FLM | Fluid Modeler | | | | Details |
| FLMB | flammable | | | | Details |
| FLN | Front de Libération Nationale | | | | Details |
| FLNG | Floating Liquid Natural Gas | | | | Details |
| FLO | Flow Meter | | | | Details |
| FLO | Fluid Travel | | | | Details |
| FLO | Nuclear Flow | | | | Details |
| FLO | Subsurface Injector | | | | Details |
| FLO | Flo Meter | | | | Details |
| flo | flow | | | | Details |
| FLO | flushing oil | | | | Details |
| FLO | Flowmeter | | | | Details |
| FLOG | FLOG PHIX RHGX Log | | | | Details |
| FLOPR | Flow Profile Report | | | | Details |
| Flor | fl Florence flint | | | | Details |
| FLOT | Flying Lead Orientation Tool | | | | Details |
| FLOTEL | Floating Hotel | | | | Details |
| FLOW | Flow & Buildup Test Report | | | | Details |
| FLOWLINE_CORR | Flowline Pressure Correction used for | | | | Details |
| FLPE | HLDS Quality Flag for Weighted Average | | | | Details |
| FLRA | Field Level Risk Assessment | | | | Details |
| FLS | Fluid Sample | | | | Details |
| FLS | Frequency Long Spacing Control Loop | | | | Details |
| FLSA | Flag for Low Sonic Amplitude | | | | Details |
| flshd | flushed | | | | Details |
| FLSO | Liquefaction Storage and Offloading (vessel) | | | | Details |
| flt | Fault (geology) | | | | Details |
| Flt | fault | | | | Details |
| flt | float | | | | Details |
| flt | Fault Data | | | | Details |
| FLTCK | filter cake | | | | Details |
| fltg | floating | | | | Details |
| fltn | flotation | | | | Details |
| FLTR | Fluid Travel Log/Fluid Entry Survey | | | | Details |
| FLTR | filter | | | | Details |
| FLTT | Flag for Low Transit Time | | | | Details |
| flu | fluorescence | | | | Details |
| flu | flouresence | | | | Details |
| flu | flue | | | | Details |
| Flu | fluid | | | | Details |
| FLU | fluid | | | | Details |
| FLUA | Flux Leakage, Upper Array | | | | Details |
| FLUHSE | Fluid Hydraulic Support Efficiency | | | | Details |
| fluor | fluorescence, fluorescent | | | | Details |
| fluor | fluorescence | | | | Details |
| FLUORAZ | a high performance elastomer for seal assemblies | | | | Details |
| FLUP | Fill Up Production Valve | | | | Details |
| FLV | Flapper Valve (sometime used instead of SSSV or UTSV) | | | | Details |
| flw(d)(g) | flow(ed)(ing) | | | | Details |
| Flwg | Pr. flowing pressure | | | | Details |
| FLWI | Mud Flow In | | | | Details |
| FLWO | Mud Flow Out | | | | Details |
| Flwrpt | flowerpot | | | | Details |
| FLXBX | flexibox | | | | Details |
| FLXP | FlexPac retrievable packer | | | | Details |
| FNEL | from northeast line | | | | Details |
| fnl | from north line | | | | Details |
| fnly | finely | | | | Details |
| FNWL | from northwest line | | | | Details |
| FOCL | Focus | | | | Details |
| FOCL | focused log | | | | Details |
| Fol | foliated | | | | Details |
| FOL | Free Oil Level | | | | Details |
| FPDL | Fracture Plausibility given by DLT | | | | Details |
| FPEL | Fracture Plausibility given by Electrical | | | | Details |
| FPL | Flow Analysis Log | | | | Details |
| FPL | Fracture Plausibility | | | | Details |
| FPLAN | Field Plan Log | | | | Details |
| FPLD | Fracture Plausibility given by LDT | | | | Details |
| FPO1_DL | MRFC 1 Piston Offset | | | | Details |
| FPO2_DL | MRFC 2 Piston Offset | | | | Details |
| FPO3_DL | MRFC 3 Piston Offset | | | | Details |
| FPP1_DL | MRFC 1 Piston Position | | | | Details |
| FPP2_DL | MRFC 2 Piston Position | | | | Details |
| FPP3_DL | MRFC 3 Piston Position | | | | Details |
| FPR1_DL | MRFC 1 Piston Rate | | | | Details |
| FPR2_DL | MRFC 2 Piston Rate | | | | Details |
| FPR3_DL | MRFC 3 Piston Rate | | | | Details |
| FPV1_DL | MRFC 1 Piston Volume | | | | Details |
| FPV2_DL | MRFC 2 Piston Volume | | | | Details |
| FPV3_DL | MRFC 3 Piston Volume | | | | Details |
| FRAC L | Frac Log | | | | Details |
| FREQ_OP_ID_SL | Operating Frequency ID - Station Log | | | | Details |
| FREQ_OP_SL | Operating Frequency - Station Log | | | | Details |
| FRLA | FBSC ADC ref low, A | | | | Details |
| FRLD | FBSC ADC ref low, D | | | | Details |
| FRP1_DL | MRFC 1 Raw Piston Position | | | | Details |
| FRP2_DL | MRFC 2 Raw Piston Position | | | | Details |
| FRP3_DL | MRFC 3 Raw Piston Position | | | | Details |
| FRXL | Forxo | | | | Details |
| FS&WLs | from south and west lines | | | | Details |
| FSAL | Formation Salinity | | | | Details |
| FSEL | from southeast line | | | | Details |
| fsl | from south line | | | | Details |
| FSL | Far signal level | | | | Details |
| FSL1 | FC_1 Slew rate | | | | Details |
| FSL1_DL | MRFC 1 Slew Rate | | | | Details |
| FSL2 | FC_2 Slew Rate | | | | Details |
| FSL2_DL | MRFC 2 Slew Rate | | | | Details |
| FSL3 | FC_2 Slew Rate | | | | Details |
| FSL3_DL | MRFC 3 Slew Rate | | | | Details |
| FSN1_DL | MRFC 1 Step Number | | | | Details |
| FSN2_DL | MRFC 2 Step Number | | | | Details |
| FSN3_DL | MRFC 3 Step Number | | | | Details |
| FST1_DL | MRFC 1 Set Point | | | | Details |
| FST2_DL | MRFC 2 Set Point | | | | Details |
| FST3_DL | MRFC 3 Set Point | | | | Details |
| FSVL | FBSC logic supply | | | | Details |
| FSWL | from southwest line | | | | Details |
| ft-lb | foot-pound | | | | Details |
| ft-lb/hr | foot-pound per hour | | | | Details |
| ft-lbs | foot-pound force | | | | Details |
| ft.lbf | foot-pound force | | | | Details |
| ft.lbm | foot-pound mass | | | | Details |
| ft/lbm | foot per pound mass | | | | Details |
| FT3/BBL | cubic foot per barrel | | | | Details |
| ft3/bbl | cubic foot per barrel | | | | Details |
| ftCla | foot (Clarke) | | | | Details |
| FTDT_SL | Far Thermal Decay Counts | | | | Details |
| ftGoldCoast | Foot (Gold Coast) | | | | Details |
| FTL | Fluid Transfer Line | | | | Details |
| FTrL | Fluid Travel Log | | | | Details |
| FUFD_TL | Filtered Uncorrected Well Fluid Density | | | | Details |
| FULDI | Full Diameter Study Report | | | | Details |
| Full | Fullerton | | | | Details |
| Fussel | Fusselman | | | | Details |
| Fusul | Fusulinid | | | | Details |
| FVEL | Fluid Acoustic Slowness | | | | Details |
| FVS1_DL | MRFC 1 Valve Status | | | | Details |
| FVS2_DL | MRFC 2 Valve Status | | | | Details |
| FVS3_DL | MRFC 3 Valve Status | | | | Details |
| FVTL | Areal Trace Length: Cumulated fracture | | | | Details |
| FWFD_TL | Filtered Well Fluid Density | | | | Details |
| FWL | Free water level | | | | Details |
| fwl | from west line | | | | Details |
| FY LE | Full Year Latest Estimate | | | | Details |
| FYLE | Full Year Latest Estimate | | | | Details |
| g-cal | gram calorie | | | | Details |
| G/L | Gain/Loss | | | | Details |
| G/L | gathering line | | | | Details |
| G/L | gram per liter | | | | Details |
| g/L | gram per liter | | | | Details |
| G/LB | gallon per pound | | | | Details |
| GAIL | Gas Authority of India Ltd. | | | | Details |
| GAIL | Gail (India) Limited | | | | Details |
| GAIL | Gas Authority India | | | | Details |
| gal | gallon(s) | | | | Details |
| gal | sol gallons of solution | | | | Details |
| Gal | galileo | | | | Details |
| GAL | gallon | | | | Details |
| gal/day | gallons per day | | | | Details |
| gal/ft | gallon per foot | | | | Details |
| gal/ft2 | gallon per hundred square feet | | | | Details |
| gal/gal | gallon per thousand gallons | | | | Details |
| gal/lbm | gallon per pound | | | | Details |
| gal/Mcf | gallons per thousand cubic feet | | | | Details |
| gal/min | gallons per minute | | | | Details |
| gal/min | gallon per minute | | | | Details |
| gal/yr | gallons per year | | | | Details |
| Gall | Gallatin | | | | Details |
| GALLON | gallon (U.S.) | | | | Details |
| GALUK | Gallon (UK) | | | | Details |
| galUK | gallon (U.K.) | | | | Details |
| galUS | gallon (U.S.) | | | | Details |
| galv | galvanized | | | | Details |
| GAMMA_SL | Computed Regularization Parameter Gamma - | | | | Details |
| GASD_DL | Gas Detector Normalized Data (Depth | | | | Details |
| GASI_DL | Gas Indicator (Depth Logging) | | | | Details |
| GAS_VOLUME | Gas volume produced | | | | Details |
| GATOIL | Subsidiary of NOC Libya Libya | | | | Details |
| GBFD_SL | Gamma Borehole - Far Detector | | | | Details |
| GBND_SL | Gamma Borehole - Near Detector | | | | Details |
| Gcal | gigacalorie | | | | Details |
| GCCL | GCT Casing Collar Locator | | | | Details |
| GCLO | gas cut load oil | | | | Details |
| GCLO | gas-cut load oil | | | | Details |
| GCLOG | Graphic Core Log | | | | Details |
| GCLW | gas cut load water | | | | Details |
| GCLW | gas-cut load water | | | | Details |
| GD li | Glen Dean lime | | | | Details |
| GDDC_DL | Gas Detector Dark Calibration Data (Depth | | | | Details |
| GDIM_DL | Gas Detector Source Intensity Monitor Data Electric_Potential | | | | Details |
| Gdld | Goodland | | | | Details |
| GDMD_DL | Gas Detector Source Intensity Monitor Dark Electric_Potential | | | | Details |
| GDMS_DL | Gas Detector Source Intensity Monitor | | | | Details |
| GDPR_TL | Gradio Differential Pressure | | | | Details |
| gel | gelled | | | | Details |
| gel | jelly-like colloidal suspension | | | | Details |
| GEL | Georgian Lari | | | | Details |
| genl | general | | | | Details |
| GEOL | Geological Surveillance Log | | | | Details |
| Geol | geologist | | | | Details |
| geol | geology(ist)(ical) | | | | Details |
| GEOPLIN | Slovenian Gas Company Slovenia | | | | Details |
| Gewinnungsfeld | License to produce | | | | Details |
| GFFD_SL | Gamma Formation - Far Detector | | | | Details |
| GFLU | good fluorescence | | | | Details |
| GFND_SL | Gamma Formation - Near Detector | | | | Details |
| GGL | Gamma Gamma Log | | | | Details |
| GHL | Gesamt Haken Last | | | | Details |
| gil | gilsonite, gilsonitic | | | | Details |
| gil | gilsonite | | | | Details |
| Gilc | Gilcrease | | | | Details |
| GKGL | gallon per thousand gallons | | | | Details |
| GL | Gas Lift | | | | Details |
| GL | Ground Level | | | | Details |
| GL | Germanischer Lloyd | | | | Details |
| GL | GREENLAND | | | | Details |
| GL | Gaslift | | | | Details |
| Gl | gas injection | | | | Details |
| GL | galileo | | | | Details |
| GL | General Ledger | | | | Details |
| GL | Lösunggasinhalt Angegeben (m3(Vn)) | Given solution gas content | | | Details |
| GL | Group L | | | | Details |
| GLADTM | software package, gas lift assisted design | | | | Details |
| glau | glauconite, glauconitic | | | | Details |
| glau | glauconite | | | | Details |
| GLAU | Glauconite | | | | Details |
| GLAU | Glauconitic Rocks | | | | Details |
| glauc | glauconitic | | | | Details |
| GLB | A kind of PCP pump | | | | Details |
| GLBVV | globe valve | | | | Details |
| GLC | Gas Lift Compressors | | | | Details |
| GLCS | Gas Lift Compression Station | | | | Details |
| gld | thd galled threads | | | | Details |
| GLE | Ground Level Elevation (generally in metres above mean sea level) | | | | Details |
| Glen | Glenwood | | | | Details |
| GLESS | GearLESS | | | | Details |
| glg | ganz liebe Grüße | | | | Details |
| GLI | Generalized Linear Inversion | | | | Details |
| GLM | Gas Lift Mandrel (alternative name for Side Pocket Mandrel) | | | | Details |
| GLM | Gas Lift Mandrels | | | | Details |
| GLM | gas lift mandrel | | | | Details |
| glna | Galena | | | | Details |
| GLO | gas lift oil | | | | Details |
| GLO | General Land Office(Texas) | | | | Details |
| Glob | Globigerina | | | | Details |
| Glor | Glorieta | | | | Details |
| GLP | GUADELOUPE | | | | Details |
| GLR | Gas Liquid Ratio | | | | Details |
| GLR | gas / liquid ratio | | | | Details |
| GLR | gas-liquid ratio | | | | Details |
| GLR | Gas-Kondensatverhältnis (m3 (Vn)/m3) | solution gas | | | Details |
| GLR | Gas Liquid Reactor | | | | Details |
| gls(y) | glass, glassy | | | | Details |
| GLST | Gas/Liquid Superficial Tension | | | | Details |
| GLT | GLT Log | | | | Details |
| GLT | gas lift transfer | | | | Details |
| GLV | Gas Lift Valve | | | | Details |
| GlV | Gasliftventil | | | | Details |
| GLV | Lösunggasinhalt Errechnet (m3(Vn)) | calculated solution gas content | | | Details |
| GlW | Gasliftwechsel | | | | Details |
| glyc | glycol | | | | Details |
| GLZ | Gleitzeit|| | flextime | Gleitzeit | flextime | Details |
| GLZ | Gleitzeit | Flexitime | | | Details |
| gm-cal | gram-calorie | | | | Details |
| GMWL | Global Meteoric Water Line | | | | Details |
| GND_DL | Ground | | | | Details |
| Gol | Golconda lime | | | | Details |
| GOLD | Gold (AU) Tracer Count Rate Output | | | | Details |
| GOLU | Gold (AU) Uncertainty Output | | | | Details |
| Gouldb | Gouldbusk | | | | Details |
| GPL | Gujarat Pipavav Port Ltd. | | | | Details |
| GPL | Gas Petroleum Liquids | | | | Details |
| GPLS | Gravel Pack Channel for Left Side of Well | | | | Details |
| GPLT | Geol Plot Log | | | | Details |
| GPSL | Geo Pressure Log | | | | Details |
| GR/CALD | Gamma Ray/Dual Caliper | | | | Details |
| GR/CCL | Gamma Ray/Casing Collar Logging | | | | Details |
| GR/D CALIPER | Gamma Ray/Dual Caliper | | | | Details |
| GR2_SL | TSGT Smoothed Gamma Ray - Station Log | | | | Details |
| GRDE_TL | Gradio Reference Density | | | | Details |
| GRDL | Guard | | | | Details |
| GRDL | guard log | | | | Details |
| GRL | GREENLAND | | | | Details |
| GRL | Gallllla Ray | | | | Details |
| GRLOG | Grapholog | | | | Details |
| GRLT | Calibrated Gamma Ray left quadrant | | | | Details |
| GRNL | Gamma Ray - Neutron | | | | Details |
| GRNL | Gamma Ray – Neutron | | | | Details |
| grnlr | granular | | | | Details |
| GRSL | Gamma Ray - Sonic | | | | Details |
| GRSL | Gamma Ray – Sonic | | | | Details |
| Grubenfeld | License to produce (During and before WWII, no production tax applicable) | | | | Details |
| GR_CAL | Calibrated Gamma Ray | | | | Details |
| GR_SL | Gamma Ray | | | | Details |
| GSCL | -1 for SPM version <= 200, 0.5 otherwise | | | | Details |
| GSLIB | Geostatistical Software Library | | | | Details |
| GSV_TL | Gradio S/V | | | | Details |
| GTEP_TL | Gradio Temperature | | | | Details |
| GTL | Gas-to-liquids conversion | | | | Details |
| GTL | gas to liquids | | | | Details |
| GTSV_TL | Gradio Temperature S/V | | | | Details |
| GTVF_TL | Gradio Temperature VFC | | | | Details |
| GVF_TL | Gradio VFC | | | | Details |
| gvl | gravel | | | | Details |
| GVLPK | gravel packet | | | | Details |
| H-SEL | perforating hyper select | | | | Details |
| H-VOLT | high voltage | | | | Details |
| H1VF_TL | High Calibration VFC Channel 1 Gradio | | | | Details |
| H2VF_TL | High Calibration VFC Channel 2 Manometer | | | | Details |
| H3VF_TL | High Calibration VFC Channel 3 Manometer | | | | Details |
| H4VF_TL | High Calibration VFC Channel 4 Well | | | | Details |
| H5VF_TL | High Calibration VFC Channel 5 Gradio | | | | Details |
| HAFF_DL | Highly Absorbing Fluid Flag (Depth | | | | Details |
| HAFWL | Height Above Free Water Level | | | | Details |
| HAL | Halite | | | | Details |
| HAL | HALLIBURTON LOG SERVICE | | | | Details |
| HAL | Halite | | | | Details |
| HALC | APS High Resolution Near/Array Corrected | | | | Details |
| HALS | High Resolution Azimuthal Laterlog Sonde | | | | Details |
| HALS | High Resolution Array Lithology Sonde. | | | | Details |
| HALS | HILT Azimuthal Laterolog Sonde | | | | Details |
| HALU | APS High Resolution Near/Array Uncorrected Neutron_Porosity_Limestone | | | | Details |
| hbld | hornblende | | | | Details |
| HBSAL | HiRes Borehole Salinity | | | | Details |
| HCAL | HRCC Calliper (in Logs)(in Inches) | | | | Details |
| HCAL | HRCC Caliper Calibrated | | | | Details |
| HCAL | HRCC Caliper Calibrated | | | | Details |
| HCCL | CCL Maximum Amplitude | | | | Details |
| HCDL | LDS High Resolution Long-Spaced Total | | | | Details |
| HCl | see hydrochloric acid | | | | Details |
| HCl | hydrogen chloride | | | | Details |
| HClO2 | chlorine dioxide, a bacteria killer | | | | Details |
| HCLS | Heave Compensating Lift/Landing System (for subsea tree deployment) | | | | Details |
| HCRL | LDS High Resolution Long-Spaced Total | | | | Details |
| HCTL | LDS High Resolution Long-Spaced | | | | Details |
| Hd li | hard lime | | | | Details |
| HDAL | High Resolution Density Alpha Factor | | | | Details |
| HDC1_DL | MRHY 1 Duty Cycle | | | | Details |
| HDC2_DL | MRHY 2 Duty Cycle | | | | Details |
| HDC3_DL | MRHY 3 Duty Cycle | | | | Details |
| HDIL | High-Definition Induction Log | | | | Details |
| HDIL_BA | High-Definition Induction Log | | | | Details |
| HDIL_HAL | Hostile Dual Induction | | | | Details |
| hdl | handle | | | | Details |
| HDLL | High-Definition Lateral Log | | | | Details |
| HDLL | High-Definition Lateral Log | | | | Details |
| HDLTSBENDS | Half Despatch Lay Time Saved Both Ends | | | | Details |
| HDPL | LDS High Resolution Long-Spaced Deadtime | | | | Details |
| HDS1L | High-Speed Directional Survey | | | | Details |
| HDSL | LDS High Resolution Long-Spaced Low Level | | | | Details |
| Heel | the area of pay closest to the casing in a highly deviated well | | | | Details |
| HEL | Hosteil Environment Logging | | | | Details |
| HELDK | HELicopter DecK | | | | Details |
| HELIOS | Ste. Pour la Construction et l’Exploitation d’une Usine d’Helium Liquide et d’Azote Algeria | | | | Details |
| HELP | Heat Escape Lessening Position | | | | Details |
| HET1_DL | MRHY 1 Elapsed Pumping Time | | | | Details |
| HET2_DL | MRHY 2 Elapsed Pumping Time | | | | Details |
| HET3_DL | MRHY 3 Elapsed Pumping Time | | | | Details |
| HFL | Hydraulic Flying Lead | | | | Details |
| HFVL | Filtered Fluid Acoustic Slowness (Fluid | | | | Details |
| HHP1_DL | MRHY 1 Hydraulic Pressure | | | | Details |
| HHP2_DL | MRHY 2 Hydraulic Pressure | | | | Details |
| HHP3_DL | MRHY 3 Hydraulic Pressure | | | | Details |
| Hill | Hilliard | | | | Details |
| HILT | High Integrated Logging Tool | | | | Details |
| HILT | Platform Express: High Resolution Integrated Logging Tool | | | | Details |
| HIS level | High Structural Integrity | | | | Details |
| HISPANOIL | Hispanica de Petroleos, S.A. (see Repsol) Spain | | | | Details |
| HJLS | LDS High Resolution Long-Spaced Pileup | | | | Details |
| HKL | HookLoad (German: Haken Last) | | | | Details |
| HKLD | Hook Load | | | | Details |
| hkly | hackly | | | | Details |
| HL | Hook Load | | | | Details |
| HL | Hohlladung (perforation charges) | | | | Details |
| HL | Hubbert Linearization | | | | Details |
| HL | Hohlladung | An old type of perforation charges.. | | | Details |
| hL | hectoliter | | | | Details |
| HLA | high side - lateral - along hole | | | | Details |
| HLAZ | Deviation Azimuth | | | | Details |
| hlb | Halliburton | | | | Details |
| HLCA | LDS High Resolution Caliper | | | | Details |
| HLDN | hold down | | | | Details |
| HLDS | Hostile Litho-Density Sonde | | | | Details |
| HLDS | Hostile Litho-Density Sonde | | | | Details |
| HLDT | Hostile Environment Litho-Density | | | | Details |
| HLDT | Hostile Environment Litho Density Tool | | | | Details |
| HLEF | LDS High Resolution Long-Spaced Corrected | | | | Details |
| HLEN | Hole Length | | | | Details |
| HLFA | LDS High Resolution Enhanced Resolution | | | | Details |
| HLIK | HDT Likeness | | | | Details |
| HLIT | High Resolution Lithology Window Countrate Count_Rate | | | | Details |
| HLL | High Resolution Long Lower Window | | | | Details |
| HLL1 | LDS High Resolution Long-Spaced Raw Loop | | | | Details |
| HLL2 | LDS High Resolution Long-Spaced Raw Loop | | | | Details |
| HLL3 | LDS High Resolution Long-Spaced Raw Loop | | | | Details |
| HLL4 | LDS High Resolution Long-Spaced Raw Loop | | | | Details |
| HLLD | Deep Resistivity high res. LLD | | | | Details |
| HLLD | HALS Laterolog Deep Resistivity | | | | Details |
| HLLD | HALS Laterolog Deep Resistivity | | | | Details |
| HLLG | HALS Laterolog Groningen Resistivity | | | | Details |
| HLLL | LDS High Resolution Long-Spaced LL Raw | | | | Details |
| HLLS | Resistivity high res. LLS | | | | Details |
| HLLS | HALS Laterolog Shallow Resistivity | | | | Details |
| HLLS | HALS Laterolog Shallow Resistivity | | | | Details |
| HLLU | LDS High Resolution Long-Spaced LU Raw | | | | Details |
| HLN | hydraulic landing nipple | | | | Details |
| HLO | Heavy Load-out (Facility) | | | | Details |
| HLO | Helicopter Landing Officer | | | | Details |
| HLO | Helicopter Landing Officer (jobrole/trainingcourse) | | | | Details |
| HLRH | HiRes Long Spacing Bulk Density | | | | Details |
| HLS | Layer/Square | | | | Details |
| HLS | High Resolution Long Spacing Countrate | | | | Details |
| HLS1 | LDS High Resolution Short-Spaced SS1 Raw | | | | Details |
| HLS2 | LDS High Resolution Short-Spaced SS2 Raw | | | | Details |
| HLSD | high-level shutdown | | | | Details |
| HLSL | LDS High Resolution Long-Spaced LS Raw | | | | Details |
| HLSP | LDS High Resolution Long-Spaced Spectrum | | | | Details |
| HLTH | LDS High Resolution Long-Spaced LITH Raw | | | | Details |
| HLU | High Resolution Long Upper 1-2 Window | | | | Details |
| HLW1 | Hires LSW1 | | | | Details |
| HLW2 | Hires LSW2 | | | | Details |
| HLW3 | Hires LSW3 | | | | Details |
| HLW4 | Hires LSW4 | | | | Details |
| HLW5 | Hires LSW5 | | | | Details |
| hly | Hourly Data | | | | Details |
| HMC1_DL | MRHY 1 Motor Current | | | | Details |
| HMC2_DL | MRHY 2 Motor Current | | | | Details |
| HMC3_DL | MRHY 3 Motor Current | | | | Details |
| HMCU_DL | Hydraulic Motor Current | | | | Details |
| HMDV_DL | Hydraulic Motor Downhole Voltage | | | | Details |
| HMFL | High Resolution MSFL | | | | Details |
| HMS1_DL | MRHY 1 Motor Speed | | | | Details |
| HMS2_DL | MRHY 2 Motor Speed | | | | Details |
| HMS3_DL | MRHY 3 Motor Speed | | | | Details |
| HND/WHL | handwheel | | | | Details |
| HNDLG | handling | | | | Details |
| HNL | Honduran Lempira | | | | Details |
| HOL1 | HY_1 Oil Level | | | | Details |
| HOL1_DL | MRHY 1 MRHY Oil Level | | | | Details |
| HOL2 | HY_2 Oil Level | | | | Details |
| HOL2_DL | MRHY 2 MRHY Oil Level | | | | Details |
| HOL3 | HY_3 Oil Level | | | | Details |
| HOL3_DL | MRHY 3 MRHY Oil Level | | | | Details |
| holiday | Hole in the protective coating of a steel pipeline in the field | | | | Details |
| Holl | Hollandberg | | | | Details |
| HPB0CH_SL | Hall Probe Static Magnetic Field | | | | Details |
| HPB0CL | Hall Probe Static Magnetic Field | | | | Details |
| HPB0CL_SL | Hall Probe Static Magnetic Field | | | | Details |
| HPB0_SL | Hall Probe Static Magnetic Field - Station Magnetic_Flux_Density | | | | Details |
| HPCL | Hindustan Petroleum Corporation Limited | | | | Details |
| HPCL | Hindustan Petroleum Corporation Ltd. India | | | | Details |
| HPEL | HiRes Photoelectric Factor Long Spacing | | | | Details |
| HPF_TL | HP Frequency | | | | Details |
| HPGP_TL | HP Gauge Pressure | | | | Details |
| HPLA | HDT Planarity | | | | Details |
| HPLC | High-performance liquid chromatography | | | | Details |
| HPLT | high pressure, low temperature Identification of the problem zone for hydrate formation | | | | Details |
| HPPR_DL | Hydraulic Pump Pressure | | | | Details |
| HPR1_DL | MRHY 1 Raw Hydraulic Pressure | | | | Details |
| HPR2_DL | MRHY 2 Raw Hydraulic Pressure | | | | Details |
| HPR3_DL | MRHY 3 Raw Hydraulic Pressure | | | | Details |
| HPT_TL | HP Gauge Temperature | | | | Details |
| HPV1_DL | MRHY 1 Hydraulic Pump Volume Output | | | | Details |
| HPV2_DL | MRHY 2 Hydraulic Pump Volume Output | | | | Details |
| HPV3_DL | MRHY 3 Hydraulic Pump Volume Output | | | | Details |
| HQLS | LDS High Resolution Long-Spaced Quality | | | | Details |
| HRAL | High resolution Array Laterolog | | | | Details |
| HRCAL | HRCC Caliper Uncalibrated | | | | Details |
| HRHL | LDS High Resolution Long Spacing Bulk | | | | Details |
| HRLA | High-Resolution Laterolog Array Tool | | | | Details |
| HRLA | High-Resolution Laterolog Array Tool | | | | Details |
| HRLB | Hours Log began | | | | Details |
| HRLD | Deep Resistivity high res. LLD | | | | Details |
| HRLD | High Resolution Deep Resistivity | | | | Details |
| HRLE | High Resolution Electrical Standoff | | | | Details |
| HRLS | Resistivity high res. LLS | | | | Details |
| HRLS | High Resolution Shallow Resistivity | | | | Details |
| HRLT | High-Resolution Laterolog Array Tool | | | | Details |
| HRLT | High-Resolution Laterolog Array Tool | | | | Details |
| HS CBL | H2S Cable | | | | Details |
| HS31_DL | MRHY 1 Solenoid 3 Status | | | | Details |
| HS32_DL | MRHY 2 Solenoid 3 Status | | | | Details |
| HS33_DL | MRHY 3 Solenoid 3 Status | | | | Details |
| HSCL | 1 for SPM version <= 200, 0.5 otherwise | | | | Details |
| HSL1 | LDS High Resolution Short-Spaced Raw Loop | | | | Details |
| HSL2 | LDS High Resolution Short-Spaced Raw Loop | | | | Details |
| HSL3 | LDS High Resolution Short-Spaced Raw Loop | | | | Details |
| HSL4 | LDS High Resolution Short-Spaced Raw Loop | | | | Details |
| HSLA | High Strength Low Alloy|| | High Strength Low Alloy | High Strength Low Alloy | Haute résistance faiblement allié | Details |
| HSLA | High Strength Low Alloy | | | | Details |
| HSLO | Horner Slope | | | | Details |
| HSLT | HPHT Digital Sonic Logging Tool (aka XSLT) | | | | Details |
| HSLT | HPHT Digial Sonic Logging Tool (aka XSLT) | | | | Details |
| HSO1_DL | MRHY 1 Solenoid Status | | | | Details |
| HSO2_DL | MRHY 2 Solenoid Status | | | | Details |
| HSO3_DL | MRHY 3 Solenoid Status | | | | Details |
| HSSL | LDS High Resolution Long-Spaced Pulse | | | | Details |
| HST_DL | Heat Sink Temperature | | | | Details |
| HTAL | High Resolution Thermal Alpha Correction | | | | Details |
| HTML | Hyper Text Markup Language | | | | Details |
| HULS | LDS High Resolution Volumetric | | | | Details |
| HVFL | HeaVy Fuel | | | | Details |
| HVL | high volume lift | | | | Details |
| HVLE | High Value Learning Events | | | | Details |
| hvly | heavily | | | | Details |
| HVML | LDS Long-Spaced Measured High Voltage | | | | Details |
| HVOL | Residual Hydrocarbon Volume: product of | | | | Details |
| HVRL | LDS High Resolution Long-Spaced Overflow | | | | Details |
| HV_CUR_SL | High Voltage Supply Current - Station Log | | | | Details |
| HV_LOADED | High Voltage When Loaded | | | | Details |
| HV_LOADED_SL | High Voltage When Loaded - Station Log | | | | Details |
| HV_REG_SL | High Voltage Regulated - Station Log | | | | Details |
| HV_UNREG_SL | High Voltage Unregulated - Station Log | | | | Details |
| HYDL | Hydrologsm | | | | Details |
| HYLSA | Hojalata y Lamina, S.A. Mexico | | | | Details |
| I-EL | Induction-Electric Log | | | | Details |
| i-Field | Intelligent Field | | | | Details |
| I-LL | Induction-Laterolog | | | | Details |
| IATEFL | International Association of Teachers of English as Foreign Language | | | | Details |
| ICAL | Imaging Caliper | | | | Details |
| ICHL | Inelastic Chlorine Weight from GST-A/IGT | | | | Details |
| IDEL | IDEL Log | | | | Details |
| IDLH | Immediately Dangerous to Life & Health | | | | Details |
| IEL | Induction Electrical Log | | | | Details |
| IEL | Induction Electrolog | | | | Details |
| IEL | Induction Electric Log | | | | Details |
| IEL | Induction Log | | | | Details |
| IEL | Induction Electric | | | | Details |
| IEL | Induction Electrolog | | | | Details |
| IEL-G | Induction Electric Gamma Ray | | | | Details |
| IEL-GR | Induction Electrolog-Gamma Ray | | | | Details |
| IEL-GRN | Induction Electrolog-Gamma Ray Neutron | | | | Details |
| IEL-N | Induction Electric Neutron | | | | Details |
| IEL-N | Induction Electrolog-Neutron | | | | Details |
| IEL/GR | Induction Electrolog Gamma Ray | | | | Details |
| IEL/GR | Induction Log-Gamma Ray | | | | Details |
| IEL/GR/NEU | Induction Electrolog Gamma | | | | Details |
| IEL/NEU | Induction Electrolog Neutron | | | | Details |
| IEL/NEU | Induction Log-Neutron | | | | Details |
| IFL | initial fluid level | | | | Details |
| IFLAG | Integer Flag | | | | Details |
| IGFL | Symmetry of the Gamma Ray around borehole | | | | Details |
| IGL | Initialer Lösunggasvorrat (m3(Vn)) | Initial solution gas reserve | | | Details |
| IGL | IGD Gas Line | | | | Details |
| IGLR | injection gas lift ratio | | | | Details |
| IGLS | Gamma Ray measurement of low side of | | | | Details |
| IHLA | IH Leistungsart | | | | Details |
| IHLS | Independent High Level Switch | | | | Details |
| IHLST | Instandhaltungs Leistungsart | | | | Details |
| IHPG_TL | Integral part of HPGP | | | | Details |
| IIL | Dual Induction - Electric | | | | Details |
| IJL | Injection Log | | | | Details |
| IL | Induction Log | | | | Details |
| IL | ICELAND | | | | Details |
| IL | ISRAEL | | | | Details |
| IL | Illinois | | | | Details |
| IL | Induction | | | | Details |
| il | Info Line | | | | Details |
| IL | Initialer Kondensatvorrat (Tonne) | Initial oil reserve | | | Details |
| IL | Induction Log | | | | Details |
| ILC | Independent Learning Center (PI) | | | | Details |
| ILCLP | IdentLogic Systems Customer Loyalty Program | | | | Details |
| ILD | Deep Indection Log | | | | Details |
| ILD | Resistivity Deep Induction | | | | Details |
| ILD | Induction Deep Resistivity | | | | Details |
| ILDA | Deep Induction Resistivity | | | | Details |
| ILDN | Measure of ILD Minus Sqrt(Sigma**2+Tau**2) Deep_Induction_Resistivity | | | | Details |
| ILDP | Measure of ILD Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| ILDT | Value of ILD Which Would Have Been Read if Deep_Induction_Resistivity | | | | Details |
| ILF | In-Line Flowmeter | | | | Details |
| ILFE | Volume of Anhydrite, Salt, Lime, Dolomite, Volume_Fraction | | | | Details |
| ILI | InLine Inspection (Intelligent Pigging) | | | | Details |
| ILL | Induction - Lateral | | | | Details |
| ILL | Induction-Lateral | | | | Details |
| ILL | Illite | | | | Details |
| ILM | Medium Indection Log | | | | Details |
| ILM | Induction Medium Resistivity | | | | Details |
| ILMA | Independent Lubricant Manufacturers Association | | | | Details |
| ILMN | Measure of ILM Minus Sqrt(Sigma**2+Tau**2) Medium_Induction_Resistivity | | | | Details |
| ILMP | Measure of ILM Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| ILMT | Value of ILM Which Would Have Been Read if Medium_Induction_Resistivity | | | | Details |
| ILO | International Labour Organization | | | | Details |
| ILOGS | Image Logs | | | | Details |
| ILS | Israeli New Shekel | | | | Details |
| ILS | Improved Lateral Sweep | | | | Details |
| ILS | Israeli shekel | | | | Details |
| ILSA | Iran-Libya Sanctions Act | | | | Details |
| ILSP | Integrated Logistics Service Providers | | | | Details |
| ILT | Instructor-Led Training | | | | Details |
| ILT | Invisible Lost Time | | | | Details |
| ILT | Injection Logging Tool | | | | Details |
| ILTA | Independent Liquid Terminals Association | | | | Details |
| ILUM | illuminator(s) | | | | Details |
| IMLA | Average of Internal Metal Loss | | | | Details |
| IMLN | Minimum of Internal Metal Loss | | | | Details |
| IMLS | Internal Metal Loss | | | | Details |
| IMLX | Maximum of Internal Metal Loss | | | | Details |
| in.-lb | inch-pound | | | | Details |
| in.lbf | inch-pound force | | | | Details |
| incl | inclusions | | | | Details |
| INCL | Inclination | | | | Details |
| incl | include(ed)(ing) | | | | Details |
| incl | inclined | | | | Details |
| INCL | Hole inclination | | | | Details |
| inclined | inclusious | | | | Details |
| INCLR | intercooler | | | | Details |
| incls | inclusions | | | | Details |
| INFD_SL | Inelastic Counts Far (Gate 8) | | | | Details |
| Inl | inland | | | | Details |
| Inl | inlet | | | | Details |
| Inlam | interlaminated | | | | Details |
| INLN | Inconsistency between LDT and NGT Model | | | | Details |
| INND_SL | Inelastic Counts Near (Gate 8) | | | | Details |
| insole | insoluble | | | | Details |
| inst(d)(g)(l) | install(ed)(ing)(tion) | | | | Details |
| insul | insulate | | | | Details |
| intclr | intercooler | | | | Details |
| inter-lam | interlaminated | | | | Details |
| inter-xln | intercrystalline | | | | Details |
| interlam | inter laminated | | | | Details |
| interxlyn | intercrystalline | | | | Details |
| INTL | internal | | | | Details |
| intl | interstitial | | | | Details |
| intlam | interlaminations | | | | Details |
| intxl | intercrystalline | | | | Details |
| INVL | Measured Depth interval between this and | | | | Details |
| INWF_SL | Interpolated Waveform - Station Log | | | | Details |
| IOL | International Octane Ltd. | | | | Details |
| IPL | Integrated Porosity Lithology | | | | Details |
| IPL | integrated porosity logging | | | | Details |
| IPL | initial potential artificial Lift | | | | Details |
| IPL | initial production plunger lift | | | | Details |
| IPLS | IPLS Log | | | | Details |
| IPP/L | Interprovincial Pipe Line Co. | | | | Details |
| IRAL | Apparent resistivity for low side of | | | | Details |
| IRAT_FIL | RST Far/Near Inelastic Ratio Filtered | | | | Details |
| IRL | IRELAND | | | | Details |
| IRTL | True resistivity for low side of borehole | | | | Details |
| ISFL | ISF-LSS Log | | | | Details |
| ISFL ISF | SS Log | | | | Details |
| ISFLISF | LSS Log | | | | Details |
| ISFSL | ISF SLS MSFL Log | | | | Details |
| ISHU_SL | Shunt Current | | | | Details |
| ISL | ICELAND | | | | Details |
| ISOL | Isotron | | | | Details |
| ISOL | isolate(tor) | | | | Details |
| ISOL | isolated | | | | Details |
| ITIL | Information Technology Infrastructure Library | | | | Details |
| ITL | Italian lira | | | | Details |
| IVEL | Interval Velocity | | | | Details |
| IWL | Institute Warranty Limits | | | | Details |
| JDL | Jar Down pulling tool for L Core option | | | | Details |
| K-Line | Kawasaki Kishen Kaisha | | | | Details |
| KALREZTM | a brand name for a high temperature seal | | | | Details |
| kaol | kaolinite | | | | Details |
| KAOL | Kaolinite | | | | Details |
| Kbbl/d | 1000 barrels per day | | | | Details |
| kbbl/d | GeoFrame legacy unit | | | | Details |
| kbbl/d.ft | GeoFrame legacy unit | | | | Details |
| KBO0_DL | Oil Bubble counts | | | | Details |
| KBO1_DL | Oil Bubble counts | | | | Details |
| KBO2_DL | Oil Bubble counts | | | | Details |
| KBO3_DL | Oil Bubble counts | | | | Details |
| KBO4_DL | Oil Bubble counts | | | | Details |
| KBO5_DL | Oil Bubble counts | | | | Details |
| KBW0_DL | Water Bubble counts | | | | Details |
| KBW1_DL | Water Bubble counts | | | | Details |
| KBW2_DL | Water Bubble counts | | | | Details |
| KBW3_DL | Water Bubble counts | | | | Details |
| KBW4_DL | Water Bubble counts | | | | Details |
| KBW5_DL | Water Bubble counts | | | | Details |
| kcal | kilocalorie | | | | Details |
| kcal/(h.degC.m2) | kilocalorie per hour per degree celsius per square meter | | | | Details |
| kcal/h.oC.m2 | GeoFrame legacy unit | | | | Details |
| KCl | potassium chloride salt | | | | Details |
| KCMR_SL | Permeability from CMR - Station Log | | | | Details |
| KDB-LDG | FLG kelly drill bushing to landing flange | | | | Details |
| KDB-MLW | kelly drill bushing to mean low water | | | | Details |
| KDB-Plat | kelly drill bushing to platform | | | | Details |
| KEVLARTM | an extremely strong fiber, common in composites | | | | Details |
| KFLB | thousand foot-pound force | | | | Details |
| kg-cal | kilogram-calorie | | | | Details |
| KG/L | kilogram per liter | | | | Details |
| kg/L | kilogram per liter | | | | Details |
| Kilo | kilogram, 1000 grams | | | | Details |
| KILOGRAM | kilogram | | | | Details |
| KILOGRAMS | kilogram | | | | Details |
| KILOMETER | kilometer | | | | Details |
| KILOMETERS | kilometer | | | | Details |
| KILOMETRE | kilometer | | | | Details |
| KILOMETRES | kilometer | | | | Details |
| KL | Kill Line | | | | Details |
| KL | Klinkenberg corrected gas permeability | | | | Details |
| kl | kiloliter | | | | Details |
| KL | Klasse der Lagerstätte | Class of reservoir | | | Details |
| Kl-Packer | Klappen-Packer | | | | Details |
| Kl/d | 1000 liters per day | | | | Details |
| KLB | thousand pounds mass | | | | Details |
| KLBF | thousand pounds force | | | | Details |
| KLBI | thousand pounds mass per inch | | | | Details |
| klbs | thousand pounds force | | | | Details |
| kld | killed | | | | Details |
| klx | kilolux | | | | Details |
| KMLM | kilomole per cubic meter | | | | Details |
| kmol | kilomole | | | | Details |
| KMOL/M3 | kilomole per cubic meter | | | | Details |
| kmol/m3 | kilomole per cubic meter | | | | Details |
| KNML | NML Permeability | | | | Details |
| KOIL | Permeability to Oil | | | | Details |
| KOLNG | Korea LNG Company | | | | Details |
| KRL | Konzern Richtlinien | Corporate Standard | | | Details |
| KRL | Konzernrichtlinie | | | | Details |
| KSCF/BBL | Thousands Standard Cubic Feet per Barrel | | | | Details |
| KSDR_SL | CMR Permeability computed using SDR model | | | | Details |
| KSO0_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| KSO1_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| KSO2_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| KSO3_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| KSO4_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| KSO5_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| KSW0_DL | Uncorrected Water Superficial Velocity | | | | Details |
| KSW1_DL | Uncorrected Water Superficial Velocity | | | | Details |
| KSW2_DL | Uncorrected Water Superficial Velocity | | | | Details |
| KSW3_DL | Uncorrected Water Superficial Velocity | | | | Details |
| KSW4_DL | Uncorrected Water Superficial Velocity | | | | Details |
| KSW5_DL | Uncorrected Water Superficial Velocity | | | | Details |
| KTIM_SL | CMR Permeability computed using | | | | Details |
| ktle | kettle | | | | Details |
| KVO0_DL | Uncorrected Sigma Oil Velocity Bubble | | | | Details |
| KVO1_DL | Uncorrected Sigma Oil Velocity Bubble | | | | Details |
| KVO2_DL | Uncorrected Sigma Oil Velocity Bubble | | | | Details |
| KVO3_DL | Uncorrected Sigma Oil Velocity Bubble | | | | Details |
| KVO4_DL | Uncorrected Sigma Oil Velocity Bubble | | | | Details |
| KVO5_DL | Uncorrected Sigma Oil Velocity Bubble | | | | Details |
| KVW0_DL | Uncorrected Sigma Water Velocity Bubble | | | | Details |
| KVW1_DL | Uncorrected Sigma Water Velocity Bubble | | | | Details |
| KVW2_DL | Uncorrected Sigma Water Velocity Bubble | | | | Details |
| KVW3_DL | Uncorrected Sigma Water Velocity Bubble | | | | Details |
| KVW4_DL | Uncorrected Sigma Water Velocity Bubble | | | | Details |
| KVW5_DL | Uncorrected Sigma Water Velocity Bubble | | | | Details |
| m/l | more or less | | | | Details |
| M/PLT | masking plate | | | | Details |
| M15V_DL | Minus 15 V Supply | | | | Details |
| M1VF_TL | Medium Calibration VFC Channel 1 Gradio | | | | Details |
| M2VF_TL | Medium Calibration VFC Channel 2 Manometer None | | | | Details |
| M3VF_TL | Medium Calibration VFC Channel 3 Manometer None | | | | Details |
| M4VF_TL | Medium Calibration VFC Channel 4 Well | | | | Details |
| M5VF_TL | Medium Calibration VFC Channel 5 Gradio | | | | Details |
| MACL | Multiarm Caliper Log | | | | Details |
| MAGL | Nuclear Magnetism | | | | Details |
| mall | malleable | | | | Details |
| MAPL | Michigan Association of Petroleum Landmen | | | | Details |
| Marg. fl. | Marginulina flat | | | | Details |
| MARICONSULT | Technical support to Transmed Algeria | | | | Details |
| MARPOL | Marine Pollution | | | | Details |
| matl | material | | | | Details |
| MAWL | Maximum Allowable Working Limit (pressure & Temperature) | | | | Details |
| MAWLs | Maximum Allowable Working Limits (pressure & Temperature) | | | | Details |
| Mbal | material balance calculation of fluid production | | | | Details |
| MBAL | Material Balance | | | | Details |
| mbbl | Million Barrels|| | million barrels | Millionen Barrel | millions de barils | Details |
| mbbl | Million Barrels | | | | Details |
| MBC1_DL | MRMS 1 Bottle Valve Command Echo | | | | Details |
| MBC2_DL | MRMS 2 Bottle Valve Command Echo | | | | Details |
| MBL | Thousand barrels of petroleum liquids; includes crude, condensate & natural gas liquids | | | | Details |
| Mbl | Fls Marble Falls | | | | Details |
| MBNGL | Thousand Barrels of Natural Gas Liquids | | | | Details |
| MBS1_DL | MRMS 1 Bottle Valve Status | | | | Details |
| MBS2_DL | MRMS 2 Bottle Valve Status | | | | Details |
| MBSL | Meter Below See Level | | | | Details |
| MBSL | Meters Below See Level | | | | Details |
| MC ls | Moore County lime | | | | Details |
| MCAL | Microlog Caliper | | | | Details |
| MCAL | MLT (Microlog) Caliper | | | | Details |
| McCul | McCullough | | | | Details |
| McEl | McElroy | | | | Details |
| MCFL | Micro-Cylindrically Focused Log | | | | Details |
| MCFL | Micro-Cylindrically Focused Logging Device | | | | Details |
| McL | McLish | | | | Details |
| McMill | McMillan | | | | Details |
| MCSW_SLDT | SLDT Middle Spacing Composite Status Word | | | | Details |
| MCVL | Multicycle Circuating Valve with Lock module (see comment!) | | | | Details |
| MDBRL | Measured Depth Below Reference Level | | | | Details |
| MDGL | Measured Depth referenced to Ground Level | | | | Details |
| MDGL | Utilizes Baker style Anchor Latch seal assembly , Permanent Production Packer, High Pressure | | | | Details |
| MDGXL | Utilizes Baker style Anchor Latch seal assembly , Permanent Production Packer, Medium Pressure, Big Bore | | | | Details |
| MDL | Minimum Data List | | | | Details |
| MDL | Methane Drainage Licence (United Kingdom), a type of onshore licence allowing natural gas to be collected "in the course of operations for making and keeping safe mines whether or not disused" | | | | Details |
| mdl | middle | | | | Details |
| MDL | Moldovan Leu | | | | Details |
| MDL | Modular Density Lithology | | | | Details |
| MDL | Memorized Depth Log | | | | Details |
| MDLAT | Measured Depth referenced to Lowest Astronominal Tide | | | | Details |
| MDLT | Medium Dual Laterolog | | | | Details |
| MDL_R | Compact Dual Laterolog Sonde | | | | Details |
| MDMSL | Measured Depth referenced to Mean Sea Level | | | | Details |
| MDSW_SLDT | SLDT Middle Spacing Detector Status | | | | Details |
| MEB1_DL | MRMS 1 Error Band | | | | Details |
| MEB2_DL | MRMS 2 Error Band | | | | Details |
| MeCl | methylene chloride | | | | Details |
| MEDGULF | Mediterranean and Gulf Insurance and Reinsurance Company | | | | Details |
| MEGAL | Mittle-Europaische-Gasleitungsgesellschaft Germany | | | | Details |
| MEHW_DL | Mean Water Holdup | | | | Details |
| MEL | Maximum Exposure Limit | | | | Details |
| MEL | Micro Eletric Log | | | | Details |
| MEPRL | Mechanical Properties Log | | | | Details |
| MESV_DL | Mean Superficial Velocity | | | | Details |
| meth-bl | methylene blue | | | | Details |
| meth-cl | methyl chloride | | | | Details |
| methol | methanol | | | | Details |
| METL | Multifrequency Electromagnetic Thickness Log | | | | Details |
| MFFL | Mixing Fluid Rate | | | | Details |
| MFL | Magnetic Flux Leakage|| | Magnetic Flux Leakage | Magnetic Flux Leakage | Fuites de flux magnétique | Details |
| MFL | Magnetic Flux Leakage | | | | Details |
| MFLD | Mechanical Fluid Loss Device (Completion tool) | | | | Details |
| MFLL | Lower Limit Mineral Fraction | | | | Details |
| MFUL | Upper Limit Mineral Fraction | | | | Details |
| mg/L | milligrams per liter | | | | Details |
| mg/L | milligram per liter | | | | Details |
| mGal | milligal | | | | Details |
| MGIL | Mud Gas Isotope Analysis | | | | Details |
| MGL | Magnelog | | | | Details |
| MGL | mean ground level | | | | Details |
| MGL | milligal | | | | Details |
| MGL | Main Gas Line | | | | Details |
| mglg | Mit ganz lieben Grüßen | With very lovely greetings | | | Details |
| MGLN | Magneline | | | | Details |
| MHDD_SLDT | SLDT Middle Spacing HV DAC Diagnostic | | | | Details |
| MHFF_SLDT | SLDT Middle Spacing HV Form Factor | | | | Details |
| MHL | MARSHALL ISLANDS | | | | Details |
| MHLS_SLDT | SLDT Middle Spacing HV Loop Status | | | | Details |
| MHMO_SLDT | SLDT Middle Spacing HV Monitor | | | | Details |
| MHRC_SLDT | SLDT Middle Spacing HV Reference Channel | | | | Details |
| MHSP_SLDT | SLDT Middle Spacing HV Set Point | | | | Details |
| MICL | Micro | | | | Details |
| MICL | Micro Log | | | | Details |
| MICL | Microlog | | | | Details |
| MICLOG | Microlog | | | | Details |
| micxl | microcrystalline | | | | Details |
| MIL | Milling Run | | | | Details |
| mil | military | | | | Details |
| MILE | mile | | | | Details |
| MILES | mile | | | | Details |
| Mill | a cutting tool used to grind up metal, dress off a fish, or open up a window for a kick-off | | | | Details |
| mill | milliotitic | | | | Details |
| millg | milling | | | | Details |
| Milli | prefix meaning one thousandth | | | | Details |
| MILLIDARCY | millidarcy | | | | Details |
| MILLIGRAM | milligram | | | | Details |
| MILLILITER | milliliter | | | | Details |
| MILLILITERS | milliliter | | | | Details |
| MILLILITRE | milliliter | | | | Details |
| MILLILITRES | milliliter | | | | Details |
| MILLIMETER | millimeter | | | | Details |
| MILLIMETERS | millimeter | | | | Details |
| MILLIMETRE | millimeter | | | | Details |
| MILLIMETRES | millimeter | | | | Details |
| MILLISECOND | millisecond | | | | Details |
| MILLISECONDS | millisecond | | | | Details |
| MINL | Minilog | | | | Details |
| MINL | Mini | | | | Details |
| Minl | Minnelusa | | | | Details |
| MINUS_15V_SL | -15 V supply - Station Log | | | | Details |
| MIPAL | Micropalaeo Log | | | | Details |
| ML | Microlog | | | | Details |
| mL | meter Low (e.g. 7 mL means that layer have detected 7 m deeper than prognosed) | | | | Details |
| ML | Mud Line | | | | Details |
| ML | Mud Log (or Mud Logging ) | | | | Details |
| ML | Microlog, or Mud Log | | | | Details |
| ML | Multi-Lateral | | | | Details |
| ML | Minilog | | | | Details |
| ML | MALI | | | | Details |
| ML | Mining lease | | | | Details |
| Ml | Michigan | | | | Details |
| ML | Contact Caliper | | | | Details |
| ML | Micro | | | | Details |
| ML | Mini | | | | Details |
| ml | milliliter | | | | Details |
| ML | mud logger | | | | Details |
| ml | TEL milliliters tetraethyl lead per gallon | | | | Details |
| ml | milled | | | | Details |
| ML | Proximity-Microlog | | | | Details |
| ML | Mini | | | | Details |
| ML | Minilog® | | | | Details |
| ML | milliliter | | | | Details |
| mL | milliliter | | | | Details |
| ML | Minilog | | | | Details |
| ML/CAL | Minilog Caliper | | | | Details |
| ML/CAL/GR | Minilog Caliper Gamma Ray | | | | Details |
| mL/mL | milliliter per milliliter | | | | Details |
| MLAT | Microlateral | | | | Details |
| MLC | Microlog Calliper | | | | Details |
| MLD | Mengen, Leistung, Dokumentation|| | Quantities, performance, documentation | Die Mengen, Leistung, Dokumentation | Quantités, performances, documentation | Details |
| mLD | meter Logging Depth | | | | Details |
| mld | milled | | | | Details |
| MLD | Mengen, Leistung, Dokumentation | Measurements, performance, documents | | | Details |
| MLE | Motor Lead Extension (ESP motor flat) | | | | Details |
| Mle | milled one end | | | | Details |
| MLE | Memorized Log Left Edge | | | | Details |
| MLF | Marine Loading Facility | | | | Details |
| mlg | milling | | | | Details |
| MLH | Mud Liner Hanger | | | | Details |
| MLHS | Mudline Hanger System | | | | Details |
| MLHZ | millihertz | | | | Details |
| MLI | MALI | | | | Details |
| MLIM | Massive Limestone Facies | | | | Details |
| MLL | Microlaterolog | | | | Details |
| MLL | Micro Laterolog | | | | Details |
| MLL | Forxo | | | | Details |
| MLL | Microlateral | | | | Details |
| MLL | Minifocus | | | | Details |
| MLL | master load list | | | | Details |
| MLL | Resistivity Microlaterolog | | | | Details |
| MLL | Microlaterolog (linear and hybrid Scale), Mudlog | | | | Details |
| MLL | Micro Laterolog | | | | Details |
| MLL | Microlaterolog Resistivity | | | | Details |
| MLL/CAL | Microlaterolog-Caliper | | | | Details |
| MLLN | Measure of MLL Minus Sqrt(Sigma**2+Tau**2) Micro_Lateral_Resistivity | | | | Details |
| MLLP | Measure of MLL Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| MLLT | Value of MLL Which Would Have Been Read if Micro_Lateral_Resistivity | | | | Details |
| MLMI | Micro Inverse Resistivity | | | | Details |
| MLMN | Micro Normal Resistivity | | | | Details |
| MLP | Multi-Layer Perceptron | | | | Details |
| MLP1 | MRMS 1 Lower Valve Position | | | | Details |
| MLP1_DL | MRMS 1 Lower Valve Position | | | | Details |
| MLP2 | MRMS 2 Lower Valve Position | | | | Details |
| MLP2_DL | MRMS 2 Lower Valve Position | | | | Details |
| MLS | Mud Line Suspension | | | | Details |
| MLT | Multi Logging Tool|| | Multi Logging Tool | Multi Logging Tool | Outil multi Logging | Details |
| MLT | Microlog | | | | Details |
| MLT | MALTA | | | | Details |
| MLT | mud line temperature | | | | Details |
| MLT | Memory Logging Tool | | | | Details |
| MLT | Multi Logging Tool | | | | Details |
| MLT | Microlog Tool | | | | Details |
| MLTBS | Multi-Lateral Tie-Back System | | | | Details |
| MLU | mud logging unit | | | | Details |
| MLW | mean low wave | | | | Details |
| MLW-PLAT | mean low water to platform | | | | Details |
| Mly | marly | | | | Details |
| MM lb | million pounds | | | | Details |
| MMBBL | Million barrel | | | | Details |
| MMBBL | Million Barrels of Oil Equivalent | | | | Details |
| MMBL | Million barrels of petroleum liquids; includes crude, condensate, & natural gas liquids | | | | Details |
| MMbls | million barrels | | | | Details |
| MMBLS | millions of barrels | | | | Details |
| MMBNGL | Million barrels of natural gas liquids | | | | Details |
| MMDM_SLDT | SLDT Middle Spacing Detector Minus 6 V | | | | Details |
| MMDP_SLDT | SLDT Middle Spacing Detector Plus 5 V | | | | Details |
| MMgal/day | million gallons per day | | | | Details |
| MML | Compact Microlog | | | | Details |
| MMLL | millimole per liter | | | | Details |
| MMOF_SL | Minitron Monitor Far (Ratio) | | | | Details |
| mmol | millimole | | | | Details |
| mmol/L | millimole per liter | | | | Details |
| MMP5_SLDT | SLDT Middle Spacing Plus 5 V PS Monitor | | | | Details |
| MMRBBL | Million Reservoir Barrel | | | | Details |
| MMT1_SLDT | SLDT Middle Spacing Test Point 1 Monitor | | | | Details |
| MMT2_SLDT | SLDT Middle Spacing Test Point 2 Monitor | | | | Details |
| MMT3_SLDT | SLDT Middle Spacing Test Point 3 Monitor | | | | Details |
| MMT4_SLDT | SLDT Middle Spacing Test Point 4 Monitor | | | | Details |
| MMT5_SLDT | SLDT Middle Spacing Test Point 5 Monitor | | | | Details |
| MMTP_SLDT | SLDT Middle Spacing Tail Pulse Gen Monitor Electric_Potential | | | | Details |
| MNL | manual | | | | Details |
| MNLS | RST Minitron Regulation Loop Status | | | | Details |
| MNLV | Module Noise Level on VDL Subcycle | | | | Details |
| mnrl | mineral | | | | Details |
| MOBILITY | Fluid Mobility in the Formation | | | | Details |
| MobiNil | Mobile Nile | | | | Details |
| MOCL | Mobil Oil Co. Ltd.UK | | | | Details |
| MOL | Mogyar Olaj-es Gazipari RT | | | | Details |
| MOL | Main Oil Line | | | | Details |
| mol | molasse | | | | Details |
| mol | mole | | | | Details |
| MOL | molecule, molecular | | | | Details |
| mol | mollusca | | | | Details |
| mol | wt molecular weight | | | | Details |
| MOL | Magyar Olaj es Gasipari Reszvenytarsasag (Hungarian Oil & Gas Co. Ltd.) Hungary | | | | Details |
| mol/L | mole per liter | | | | Details |
| mol/m3 | mole per cubic meter | | | | Details |
| Molch | pig | scraper, go-devil | | | Details |
| MOLCHOP | More Or Less CHarterers OPtion | | | | Details |
| Molchschleuse | Scraper trap | | | | Details |
| MOLDO | Petrom-Moldova S.R.L. | | | | Details |
| mole % | GeoFrame legacy unit | | | | Details |
| MOLL | mole per liter | | | | Details |
| MOLM | mole per cubic meter | | | | Details |
| MOLOO | More Or Less Owners (Masters) Option | | | | Details |
| MPAL | Magellan Petroleum Australia Ltd. Australia | | | | Details |
| MPDD_SLDT | SLDT Middle Spacing PSC DAC Diagnostic | | | | Details |
| MPFF_SLDT | SLDT Middle Spacing PSC Form Factor | | | | Details |
| MPGH-Lith | multipurpose grease lithium base | | | | Details |
| MPhil | Master of Philosophy | | | | Details |
| MPL | Murco Petroleum Limited UK | | | | Details |
| MPL1 | MS_1 Lower Valve Position | | | | Details |
| MPLS_SLDT | SLDT Middle Spacing PSC Loop Status | | | | Details |
| MPLT | memory production logging tool | | | | Details |
| MPSP_SLDT | SLDT Middle Spacing PSC Set Point | | | | Details |
| Mrayl | megarayl | | | | Details |
| MRBBL | Thouasands Reservoir Barrel | | | | Details |
| MRIL | Magnetic Resonance Imaging Log | | | | Details |
| MRIL | Magnetic Resonance Imaging Log | | | | Details |
| MRIL-WD | Magnetic Resonance Image Logging | | | | Details |
| MRLD | Mechanical Rigid Lockdown tool (Drill euipment tool) | | | | Details |
| mrlst | marlstone | | | | Details |
| mrly | marly | | | | Details |
| MSAT_SLDT | SLDT Middle Spacing Acquisition Time | | | | Details |
| MSCP_SLDT | Middle Spacing Compensated Pulses | | | | Details |
| MSFL | Micro SFL Log | | | | Details |
| MSFL | Micro Spherically focused Log | | | | Details |
| MSFL | Micro Spherically Focused Log | | | | Details |
| MSFL | Micro-Spherically Focused Log | | | | Details |
| MSFL | Micro Spherically Focused Log | | | | Details |
| MSFL | Microspherically Focused log | | | | Details |
| MSFL | Microlaterolog Focused Log | | | | Details |
| MSFL | Resistivity MicroSFL | | | | Details |
| MSFL | Micro-spherically-focused Resistivity | | | | Details |
| MSG-CBL | Micro-Seismogram Log, Cased Hole | | | | Details |
| MSG-CBL-G | Micro-Seismogram Gamma Collar | | | | Details |
| MSG-CBL-N | Micro-Seismogram Neutron Collar | | | | Details |
| MSL | Micro Spherical Log | | | | Details |
| MSL | Mean Sea Level | | | | Details |
| MSL | Micro Spherical Laterolog | | | | Details |
| MSL | Micro Spherical Laterolog | | | | Details |
| MSL1 | MS_1 Slew Rate | | | | Details |
| MSL1_DL | MRMS 1 Slew Rate | | | | Details |
| MSL2 | MS_2 Slew Rate | | | | Details |
| MSL2_DL | MRMS 2 Slew Rate | | | | Details |
| MSPE_DL | Motor Speed | | | | Details |
| MSSP_SLDT | SLDT Middle Spacing Spectrum | | | | Details |
| MSSP_SLDT_HR | SLDT High Resolution Middle Spacing | | | | Details |
| MST1_DL | MRMS 1 Set Point | | | | Details |
| MST2_DL | MRMS 2 Set Point | | | | Details |
| MSV_TL | Manometer S/V | | | | Details |
| MTEP_TL | Manometer Temperature | | | | Details |
| mtl | material | | | | Details |
| mtl | Monatlich | | | | Details |
| MTL | Maltese lira | | | | Details |
| MTSV_TL | Manometer Temperature S/V | | | | Details |
| MTVF_TL | Manometer Temperature VFC | | | | Details |
| MULT | Multiple Reflection Coefficient (Primaries Reflection_Coefficient | | | | Details |
| MULTX | multiply, multiplexer | | | | Details |
| MUP1_DL | MRMS 1 Upper Valve Position | | | | Details |
| MUP2_DL | MRMS 2 Upper Valve Position | | | | Details |
| MuSol | Mutual Solvent | | | | Details |
| MVBL | Mud Volume Balance | | | | Details |
| MVF_TL | Manometer VFC | | | | Details |
| MVL1 | Multi-Channel Vertiline 4-1/2in. (114mm) | | | | Details |
| MVL2 | Multi-Channel Vertiline 5-1/2 in (140mm) | | | | Details |
| MVL3 | Multi-Channel Vertiline 7 in. (178 mm) | | | | Details |
| MVL4 | Multi-Channel Vertiline 8-5/8 in. (219 mm) | | | | Details |
| MVS1_DL | MRMS 1 Valve Status | | | | Details |
| MVS2_DL | MRMS 2 Valve Status | | | | Details |
| MVTL | Multi-Channel Vertiline | | | | Details |
| MWE1_DL | MRMS 1 Wrong Echo Count | | | | Details |
| MWE2_DL | MRMS 2 Wrong Echo Count | | | | Details |
| mwl | Multi-Well Log | | | | Details |
| MXLS | Metal Loss Of Max. | | | | Details |
| N' ly | northerly | | | | Details |
| N.Y.K.Line | Nippon Yusen Kaisha | | | | Details |
| N2CL | RST Near IC Capture Chlorine Relative | | | | Details |
| N2CL_SIG | RST Near IC Capture Chlorine Relative | | | | Details |
| NaCl | Sodium Chloride (table salt) | | | | Details |
| NaCl | sodium chloride salt Halite | | | | Details |
| NaCL | sodium chloride | | | | Details |
| NAFTAL | Entreprise Nationale de Raffinage et de Distribution des Produits Petroliers Algeria | | | | Details |
| NALRD | Northern Alberta Land Registration district | | | | Details |
| Nat 'l | National | | | | Details |
| nat’l | national | | | | Details |
| NCBL | Synthetic CBL from Near Attenuation | | | | Details |
| NCL | NEW CALEDONIA | | | | Details |
| NCL | Neutron Collar Log | | | | Details |
| NCLK | NCLK Counts | | | | Details |
| NCNL | Near Detector Count Rate | | | | Details |
| Ndl | Cr Noodle Creek | | | | Details |
| NDL | Neutron Depth Log | | | | Details |
| NDLS | RST Near Detector Loop Status | | | | Details |
| NEL | northeast line | | | | Details |
| NELP | New Exploration and Licensing Polley | | | | Details |
| NETL | National Energy Technology Laboratory | | | | Details |
| NETL | National Energy Technology Laboratory, DOE | | | | Details |
| NFL | Nuclear Flolog | | | | Details |
| NFL/GR | Nuclear Flolog-Gamma Ray | | | | Details |
| NFL/GR/NEU | Nuclear Flolog-Gamma Ray Neutron | | | | Details |
| NFL/NEU | Nuclear Flolog-Neutron | | | | Details |
| NGL | Natural Gas Liquids | | | | Details |
| NGL | Natural gas liquids (ethane, propane, butane, isobutane and natural gasoline) | | | | Details |
| NGL | natural gas liquids | | | | Details |
| NGL | Natural Gas Liquid | | | | Details |
| NGLQT | NGT QL Log | | | | Details |
| NGLs | Natural Gas Liquids | | | | Details |
| NGTLD | NGT LDT QL Log | | | | Details |
| NH4Cl | ammonium chloride | | | | Details |
| NIL | Nothing | | | | Details |
| NL | Neutronlog | | | | Details |
| NL | NETHERLANDS | | | | Details |
| NL | Non Linear | | | | Details |
| NL | north line | | | | Details |
| NL | Gas nonleaded gas | | | | Details |
| NL | Neutron Logging | | | | Details |
| NL | Neutron Log | | | | Details |
| NL | No well log | | | | Details |
| NL | Non-Current Liabilities | | | | Details |
| NL15 | Neutron counts - 15.5in Spacing | | | | Details |
| NL16 | Neutron counts - 16.5in Spacing | | | | Details |
| NL19 | Neutron counts - 19in Spacing | | | | Details |
| NLA | No Leasing, Administrative | | | | Details |
| NLA/LUP | No Leasing, Administrative/Land Use Planning | | | | Details |
| NLD | NETHERLANDS | | | | Details |
| NLG | Netherlands guilder | | | | Details |
| NLGI | National Lubricating Grease Institute | | | | Details |
| NLIMNF | Neutron Porosity Near/Far (Limestone) | | | | Details |
| NLL | neutron lifetime log | | | | Details |
| NLL | Neutron Lifetime | | | | Details |
| NLL/GR | Neutron Lifetime Gamma Ray | | | | Details |
| NLL/GR/NEU | Neutron Lifetime G/R-Neutron | | | | Details |
| NLL/NEU | Neutron Lifetime Neutron | | | | Details |
| NLNG | Nigerian LNG Nigeria | | | | Details |
| NLPGA | National Liquefied Petroleum Gas Association | | | | Details |
| NLRB | National Labor Relations Board | | | | Details |
| NLS | No Leasing, Statutory or Executive Order | | | | Details |
| NMAGL | Nuclear Magnetism | | | | Details |
| NML | Nuclear Magnetism | | | | Details |
| NMOL | New Main Oil Line | | | | Details |
| NOEL | no-observed-effect level | | | | Details |
| NOISE_DH_SL | Noise Amplitude Computed Down-Hole - | | | | Details |
| NOISE_PWR_SL | Noise Power Computed Down-Hole - Station | | | | Details |
| NOISL | Noise Log | | | | Details |
| Nozzle | a shaped orifice for directing fluid flow | | | | Details |
| NPL | NEPAL | | | | Details |
| NPL | nipple | | | | Details |
| NPL | Non performing loan | | | | Details |
| NPL | Neutron Porosity Limestone | | | | Details |
| NPLC | Nuclear Porosity Lithology | | | | Details |
| NPLC | Neutron Porosity, Limestone (Temperature & Neutron_Porosity_Limestone | | | | Details |
| NPLM | Neutron Porosity Limestone (Memory) | | | | Details |
| NPLM | Neutron Porosity Limestone (Memory) | | | | Details |
| NPLT | Nuclear Porosity Lithology | | | | Details |
| NPLV | Number of Pooled Levels | | | | Details |
| NPSL | American Standard Straight Locknut Pipe Thread | | | | Details |
| NREL | National Renewable Energy Laboratory, a laboratory of the US Department of Energy | | | | Details |
| NSL | Near Signal Level | | | | Details |
| NTDT_SL | Near Thermal Decay Counts | | | | Details |
| NTEL | no-toxic-effect level | | | | Details |
| NUM_MSG_SL | Number of Messages - Station Log | | | | Details |
| NWL | northwest line | | | | Details |
| NYL | nylon | | | | Details |
| Nylon | a polyamide material | | | | Details |
| NZL | NEW ZEALAND | | | | Details |
| N’ly | northerly | | | | Details |
| O&GCLW | oil & gas cut load water | | | | Details |
| O&GCLW | oil and gas-cut load water | | | | Details |
| O&GL | oil and gas lease | | | | Details |
| O/pull | Overpull | | | | Details |
| OAL | OverAll Length (normally for x-overs) | | | | Details |
| OAL | overall length | | | | Details |
| OBDTL | OBDT Log | | | | Details |
| obsol | obsolete | | | | Details |
| occl | occasional | | | | Details |
| OCL | Quality Control Log | | | | Details |
| OCLI | Oil Color of Reference | | | | Details |
| OCLR | Oil Color | | | | Details |
| OCOL | Oil Coloration from Optical Fluid Analyzer Color | | | | Details |
| OCSLA | Outer Continental Shelf Lands Act | | | | Details |
| Odel | O’Dell | | | | Details |
| OEL | Occupational Exposure Limit | | | | Details |
| OETAL | Transalpine Ölleitung in Österreich Gesellschaft m.b.H. | | | | Details |
| OFFBLG | OMV Offshore Bulgaria GmbH | | | | Details |
| OFFSET_ANGLE | Offset Angles for Fast Channels | | | | Details |
| OFL | overflush(ed) | | | | Details |
| OFLU | oil fluorescence | | | | Details |
| OGDCL | Oil & Gas Development Company Limited | | | | Details |
| OGLV | operating gas lift valve | | | | Details |
| OGML | Oil, Gas and Mineral Lease | | | | Details |
| OHL | Open Hole Logs | | | | Details |
| Oil | Oil India Umited | | | | Details |
| Oil | Cr Oil Creek | | | | Details |
| OIL | Opportunity Identification List | | | | Details |
| OIL | oil | | | | Details |
| OILC | Oil Color Indicator | | | | Details |
| OILEXP | OMV Oil Exploration GmbH | | | | Details |
| OILF | Oil Fraction | | | | Details |
| oilfract | Oil fractured | | | | Details |
| OILF_DL | Oil Fraction (Depth Logging) | | | | Details |
| OILINVEST | Intl. Arm of NOC Libya Libya | | | | Details |
| OILO | Oil Opacity | | | | Details |
| OILP | Oil Producer | | | | Details |
| OILPRO | OMV Oil Production GmbH | | | | Details |
| OILQ | Oil Phase Flowrate | | | | Details |
| OILREC | OIL RECovery | | | | Details |
| OIL_TEMP | Oil temperature measured at separator oil | | | | Details |
| OIL_VOLUME | Oil volume produced | | | | Details |
| OL | off / on location | | | | Details |
| OL | open line(no choke) | | | | Details |
| OL | Log Overlays | | | | Details |
| OLADE | Organization Latinoamericana de Energia Ecuador | | | | Details |
| OLE | Object Linking and Embedding | | | | Details |
| ole | olefin | | | | Details |
| OLECASA | Oleoductos Canarios S.A. Spain | | | | Details |
| OLF | Norwegian Oil Industry Assn. Norway | | | | Details |
| OLF | Oil/Liquid Fraction | | | | Details |
| OLIB | OMV OF LIBYA LIMITED | | | | Details |
| Olig | Oligocene | | | | Details |
| OLN | outline | | | | Details |
| olv | olive | | | | Details |
| OM&L | Operation, Maintenance & Logistic | | | | Details |
| OML | Oil Mining License (Nigeria) | | | | Details |
| OMRL | Oriented Micro | | | | Details |
| OMRL | OMRL Log | | | | Details |
| OMRL | Oriented Micro-Resistivity Log | | | | Details |
| OMRL | oriented microresistivity | | | | Details |
| ONSHOL | OMV Switzerland Holding AG | | | | Details |
| ool | oolitic | | | | Details |
| OOWLL | Order On WireLine Logging | | | | Details |
| OPGSOL | OMV Petrom Global Solutions S.R.L. | | | | Details |
| OPL | Operations Log | | | | Details |
| OPLNZ | OMV NZ Production Limited | | | | Details |
| OPTL | optional | | | | Details |
| ORL | Oil Refineries Ltd. Israel | | | | Details |
| OSL | Oil Search Ltd. New Guinea | | | | Details |
| OSL | Oil Slug Fraction | | | | Details |
| OSLNZ | OMV NZ Services Limited | | | | Details |
| OTL | Operations Team Leader | | | | Details |
| Otl | outlet | | | | Details |
| OTL | Oil Fraction (Total) | | | | Details |
| OTLNZ | OMV Taranaki Limited | | | | Details |
| OTLR | Oil Fraction of Reference | | | | Details |
| OUCP_DL | Offset Used to Compute SGP | | | | Details |
| OUTL | Outlook | | | | Details |
| OVAL | Ovalization | | | | Details |
| OVL | ONGC indian company | | | | Details |
| OVPL | Overpull | | | | Details |
| OVRL | LDS Long-Spaced Overflow Countrate | | | | Details |
| P & L | Profit & Loss statement (see comment) | | | | Details |
| P FGL | Druck in Förder Gas Leitung | Pressure in Gas Production Pipeline | | | Details |
| P FGL | Druck in Fern Gas Leitung | Pressure in Remote Gas Production Pipeline | | | Details |
| P Lar | Post Laramine | | | | Details |
| P Oil | Paraphinic Oil | | | | Details |
| P Öl | Paraffin Öl | Paraphinic Oil | | | Details |
| P&L | Profit & Loss statement (see comment) | | | | Details |
| P&L | profit and loss | | | | Details |
| P&L | Profit and Loss (account) | | | | Details |
| P-Oil | Paraphinic Oil | | | | Details |
| P-Öl | Paraffin Öl | Paraphinic Oil | | | Details |
| P/BLDG | pump building | | | | Details |
| P/L | Pipeline | | | | Details |
| P01CCL | Casing Collar Locator Amplitude [01] | | | | Details |
| P01CVL | Cable Velocity [01] | | | | Details |
| P01LGR | Gamma-Ray [01] | | | | Details |
| P01LPR | Well Pressure [01] | | | | Details |
| P02CCL | Casing Collar Locator Amplitude [02] | | | | Details |
| P02CVL | Cable Velocity [02] | | | | Details |
| P02LGR | Gamma-Ray [02] | | | | Details |
| P02LPR | Well Pressure [02] | | | | Details |
| P03CCL | Casing Collar Locator Amplitude [03] | | | | Details |
| P03CVL | Cable Velocity [03] | | | | Details |
| P03LGR | Gamma-Ray [03] | | | | Details |
| P03LPR | Well Pressure [03] | | | | Details |
| P04CCL | Casing Collar Locator Amplitude [04] | | | | Details |
| P04CVL | Cable Velocity [04] | | | | Details |
| P04LGR | Gamma-Ray [04] | | | | Details |
| P04LPR | Well Pressure [04] | | | | Details |
| P05CCL | Casing Collar Locator Amplitude [05] | | | | Details |
| P05CVL | Cable Velocity [05] | | | | Details |
| P05LGR | Gamma-Ray [05] | | | | Details |
| P05LPR | Well Pressure [05] | | | | Details |
| P06CCL | Casing Collar Locator Amplitude [06] | | | | Details |
| P06CVL | Cable Velocity [06] | | | | Details |
| P06LGR | Gamma-Ray [06] | | | | Details |
| P06LPR | Well Pressure [06] | | | | Details |
| P07CCL | Casing Collar Locator Amplitude [07] | | | | Details |
| P07CVL | Cable Velocity [07] | | | | Details |
| P07LGR | Gamma-Ray [07] | | | | Details |
| P07LPR | Well Pressure [07] | | | | Details |
| P08CCL | Casing Collar Locator Amplitude [08] | | | | Details |
| P08CVL | Cable Velocity [08] | | | | Details |
| P08LGR | Gamma-Ray [08] | | | | Details |
| P08LPR | Well Pressure [08] | | | | Details |
| P09CCL | Casing Collar Locator Amplitude [09] | | | | Details |
| P09CVL | Cable Velocity [09] | | | | Details |
| P09LGR | Gamma-Ray [09] | | | | Details |
| P09LPR | Well Pressure [09] | | | | Details |
| P10CCL | Casing Collar Locator Amplitude [10] | | | | Details |
| P10CVL | Cable Velocity [10] | | | | Details |
| P10LGR | Gamma-Ray [10] | | | | Details |
| P10LPR | Well Pressure [10] | | | | Details |
| P11CCL | Casing Collar Locator Amplitude [11] | | | | Details |
| P11CVL | Cable Velocity [11] | | | | Details |
| P11LGR | Gamma-Ray [11] | | | | Details |
| P11LPR | Well Pressure [11] | | | | Details |
| P12CCL | Casing Collar Locator Amplitude [12] | | | | Details |
| P12CVL | Cable Velocity [12] | | | | Details |
| P12LGR | Gamma-Ray [12] | | | | Details |
| P12LPR | Well Pressure [12] | | | | Details |
| P13CCL | Casing Collar Locator Amplitude [13] | | | | Details |
| P13CVL | Cable Velocity [13] | | | | Details |
| P13LGR | Gamma-Ray [13] | | | | Details |
| P13LPR | Well Pressure [13] | | | | Details |
| P14CCL | Casing Collar Locator Amplitude [14] | | | | Details |
| P14CVL | Cable Velocity [14] | | | | Details |
| P14LGR | Gamma-Ray [14] | | | | Details |
| P14LPR | Well Pressure [14] | | | | Details |
| P15CCL | Casing Collar Locator Amplitude [15] | | | | Details |
| P15CVL | Cable Velocity [15] | | | | Details |
| P15LGR | Gamma-Ray [15] | | | | Details |
| P15LPR | Well Pressure [15] | | | | Details |
| P16CCL | Casing Collar Locator Amplitude [16] | | | | Details |
| P16CVL | Cable Velocity [16] | | | | Details |
| P16LGR | Gamma-Ray [16] | | | | Details |
| P16LPR | Well Pressure [16] | | | | Details |
| PAAC_DL | MRPA Acquisition Command Echo | | | | Details |
| PAAD_DL | MRPA Auto Deflate Valve status | | | | Details |
| PAFO_DL | MRPA Temperature Frequency Offset | | | | Details |
| PAFP_DL | MRPA Inflate Position | | | | Details |
| PAG1_DL | MRPA Gain for Multiplexer Channel 0 to 3 | | | | Details |
| PAG2_DL | MRPA Gain for Multiplexer Channel 4 to 7 | | | | Details |
| PAHP_DL | MRPA Inflate Pressure | | | | Details |
| PAIFR_DL | MRPA interval pumpout flowrate | | | | Details |
| PAIL | Plunger Assisted Intermittent Lift | | | | Details |
| PAIST_DL | MRPA interval pumpout storage | | | | Details |
| PAIVO_DL | MRPA interval volume | | | | Details |
| PAL | Palaeo Chart | | | | Details |
| PAL | producer, artificial lift | | | | Details |
| Pal | Paluxy | | | | Details |
| PAL | Pipe Analysis Log | | | | Details |
| PALCP | MRPA lower contact point distance | | | | Details |
| PALCP_DL | MRPA lower contact point distance | | | | Details |
| Paleo | paleontology | | | | Details |
| Paleo | Paleozoic | | | | Details |
| Palo | P Palo Pinto | | | | Details |
| PALTEL | Palestine Telecommunications Co. Plc | | | | Details |
| PALYN | Palynological Analysis Report | | | | Details |
| PAMF_DL | MRPA Frequency in Multiplexer Channels | | | | Details |
| Pan L | Panhandle Lime | | | | Details |
| PANC_DL | MRPA Difference Frequency in Clock Sensor | | | | Details |
| PANS_DL | MRPA Difference Frequency in Quartz Gauge | | | | Details |
| PANX_DL | MRPA Difference Frequency in Clock Sensor | | | | Details |
| PAPC_DL | MRPA Quartz Pressure Compensation | | | | Details |
| PAPD_DL | MRPA Packer Depth | | | | Details |
| PAQP_DL | MRPA Quartz Pressure | | | | Details |
| PAQS_DL | MRPA Quartz Gauge Status | | | | Details |
| PAQT_DL | MRPA Quartz Temperature | | | | Details |
| PARH_DL | MRPA Raw Inflate Pressure | | | | Details |
| PARQ_DL | MRPA Raw Quartz Pressure | | | | Details |
| PARS_DL | MRPA Raw Strain Gauge Pressure | | | | Details |
| PASA_DL | MRPA Strain Gauge Automatic Compensation | | | | Details |
| PASC_DL | MRPA Control Command Echo | | | | Details |
| PASF_DL | MRPA Strain Gauge Frequency | | | | Details |
| PASG_DL | MRPA Strain Gauge Pressure | | | | Details |
| PASO_DL | MRPA solenoid status | | | | Details |
| PASW_DL | MRPA Status Word | | | | Details |
| PATV_DL | MRPA Strain Gauge Temperature | | | | Details |
| PAUCP_DL | MRPA upper contact point distance | | | | Details |
| PAVPER_DL | MRPA inflate volume percentage | | | | Details |
| PAVP_DL | MRPA Interval Position | | | | Details |
| PBHL | Proposed Bottom Hole Location | | | | Details |
| PBHL | proposed bottom-hole location | | | | Details |
| PBL | Paul B Lee who invented DP circ tool (for circulation of the mud/LCM during drilling) | | | | Details |
| PBL | Paul B Lee who invented DP circ tool | | | | Details |
| pbl | pebbles | | | | Details |
| pbl(y) | pebble, pebbly | | | | Details |
| pble | pebble | | | | Details |
| pbls | pebbles | | | | Details |
| pbly | pebbly | | | | Details |
| Pcal | petacalorie | | | | Details |
| PCAL | Caliper from Phase Shift Imbalance | | | | Details |
| PCBL | Predicted CBL Amplitude | | | | Details |
| PCCL | Perforation Casing Collar Locator Log | | | | Details |
| PCCL | Casing Collar Locator Amplitude | | | | Details |
| PCDIAG_DL | MRPC Diagnostics | | | | Details |
| PCGND_DL | MRPC Ground | | | | Details |
| PCL | Pipe Conveyed Logging | | | | Details |
| pcl | pipe conveyed logging | | | | Details |
| PCLG | Projection of the Logs onto the Principal | | | | Details |
| PCMS_DL | MUX State | | | | Details |
| PCOLL | Perforation and Collar | | | | Details |
| PCVL | Cable Velocity | | | | Details |
| PDD1_DL | Pretest Drawdown Pressure Limit 1 | | | | Details |
| PDD2_DL | Pretest Drawdown Pressure Limit 2 | | | | Details |
| PDD3_DL | Pretest Drawdown Pressure Limit 3 | | | | Details |
| PDDL | Pre-test Draw-down Pressure Limit | | | | Details |
| PDKL | PDK Log | | | | Details |
| PDL | Pressure Dependent Leakoff | | | | Details |
| PDL | Pre drilled liner Liner with holes along its length; | | | | Details |
| PDL | Density Limestone Porosity | | | | Details |
| PEAL | LDS Long-Spaced Photoelectric Factor | | | | Details |
| PEARL | Pearl Petroleum Company Limited | | | | Details |
| PEDL | Petroleum Exploration and Development Licence (United Kingdom), introduced in the th Onshore Licensing Round | | | | Details |
| PEFL | LDS Long-Spaced Corrected Photoelectric | | | | Details |
| Pegel | Level|| | level | Ebene | niveau | Details |
| Pegel | Level | Level | | | Details |
| PEL | Petroleum Economics Limited | | | | Details |
| PEL | Permissible Exposure Limit (see comment) | | | | Details |
| PEL | Permissible Exposure Limit | | | | Details |
| PEL | Petroleum Exploration License | | | | Details |
| PEL | Photoelectric Factor, Left | | | | Details |
| PELI | Porosity EPT Limestone | | | | Details |
| pell | pellletal, pelletoidal | | | | Details |
| penal | penalty, penalize(ed)(ing) | | | | Details |
| PENL | Penetration Log | | | | Details |
| PERML | Permeability Log | | | | Details |
| PETLG | Petrophysical Evaluation Log | | | | Details |
| PETRO-COMMERCIAL | Empresa Estatal de Commercializacion y Transporte de Petroles del Ecuador Ecuador | | | | Details |
| PETRO-INDUSTRIAL | Empresa Estatal de Industrializacion de Petroles del Ecuador Ecuador | | | | Details |
| PETROBANGLA | Bangladesh Oil, Gas & Mineral Corporation Bangladesh | | | | Details |
| Petrobel | Belayim Petroleum Company | | | | Details |
| PETROBEL | Belayim Petroleum Co. Egypt | | | | Details |
| PETROGAL | Petroleos de Portugal Portugal | | | | Details |
| PETROL | Petrol, A Slovene Oil Company Slovenia | | | | Details |
| PFDL | Porosity Fracture Computed from DLT | | | | Details |
| PFGL | Druck in Förder Gas Leitung | Pressure in Gas Production Pipeline | | | Details |
| PFGL | Druck in Fern Gas Leitung | Pressure in Remote Gas Production Pipeline | | | Details |
| PFLA | Flag identifying when overpressure model | | | | Details |
| PFLG | Processing Flag (1.0=Single, 0.0=2 Sigma) | | | | Details |
| PFVL | PIQL Fluid Acoustic Slowness | | | | Details |
| PHCL | Photoclinometer | | | | Details |
| PHICL | clay corrected porosity | | | | Details |
| PHIL | Sonic Porosity, Limited | | | | Details |
| PHL | PHILIPPINES | | | | Details |
| PHOL | Photon Log | | | | Details |
| PHTL | Total Porosity - limited in bad hole | | | | Details |
| PIFL | Perforation Interval Flag | | | | Details |
| PIFL_DM | Perforation Interval Flag [PL playback] | | | | Details |
| PIL | Petrofac International Limited | | | | Details |
| PIL | Phasor Induction Log | | | | Details |
| PIL | Petroleum Infrastructure Limited | | | | Details |
| PILD | Fitting Coefficient for Resistivity given | | | | Details |
| PILE | Pileup in GST-A/IGT Spectrum | | | | Details |
| Pill | a volume of gelled fluid mixed for a specific purpose A fluid loss pill for example | | | | Details |
| PILM | Fitting Coefficient for Resistivity given | | | | Details |
| Pilot | a small scale test or trial used to assess the feasibility of a process to a reservoir or field | | | | Details |
| PILS | Platform Inline spinner in PLT tool of Schlumberger (Spinner) | | | | Details |
| PINTL | Production Interpretation | | | | Details |
| PISTL | pump in spinner temperature log | | | | Details |
| Pixel | Picture Element | | | | Details |
| PL | Production Licence (United Kingdom), a type of onshore licence issued before 1996 | | | | Details |
| PL | Price List | | | | Details |
| pl | Planned | | | | Details |
| PL | Production Licence | | | | Details |
| PL | POLAND | | | | Details |
| PL | pipeline | | | | Details |
| PL | Pennalog | | | | Details |
| PL | Proximity | | | | Details |
| PL | plate | | | | Details |
| PL | property line | | | | Details |
| PL | Permalog | | | | Details |
| PL | Lagerstätte Pressure | Reservoir pressure | | | Details |
| PL | Production Logging | | | | Details |
| pl | pale | | | | Details |
| Pl | Chance of Low (Estimate) | | | | Details |
| PL | Plant | Werk | | | Details |
| pl fos | plant fossils | | | | Details |
| PL01 | Producibility Evaluation List Channel 1 | | | | Details |
| PL02 | Producibility Evaluation List Channel 2 | | | | Details |
| PL03 | Producibility Evaluation List Channel 3 | | | | Details |
| PL04 | Producibility Evaluation List Channel 4 | | | | Details |
| PL05 | Producibility Evaluation List Channel 5 | | | | Details |
| PL06 | Producibility Evaluation List Channel 6 | | | | Details |
| PL07 | Producibility Evaluation List Channel 7 | | | | Details |
| PL08 | Producibility Evaluation List Channel 8 | | | | Details |
| PL09 | Producibility Evaluation List Channel 9 | | | | Details |
| PL10 | Producibility Evaluation List Channel 10 | | | | Details |
| PL11 | Producibility Evaluation List Channel 11 | | | | Details |
| PL12 | Producibility Evaluation List Channel 12 | | | | Details |
| PLAN | Planarity | | | | Details |
| Plan. | palm. Planulina palmarie | | | | Details |
| Plan. har. | Planulina harangensis | | | | Details |
| PLANEANGLE | Plane_Angle | | | | Details |
| PlanWerk | Planungswerk | | | | Details |
| plas | plastic | | | | Details |
| PLASR | plaster | | | | Details |
| platf | platform | | | | Details |
| PLATO | Pennzoil Offshore Gas Operators | | | | Details |
| PLC | Programmable Logic Controller | | | | Details |
| PLCA | Pipe Line Contractors Association | | | | Details |
| plcy | pelecypod | | | | Details |
| pld | pulled | | | | Details |
| PLE | plain large end | | | | Details |
| Pleist | Pleistocene | | | | Details |
| PLEM | Pipeline End Manifold | | | | Details |
| PLES | Pipeline End Structure | | | | Details |
| PLET | PipeLine End Termination (AKA FLET) | | | | Details |
| PLF | Low Frequency Phase Output | | | | Details |
| PLFO | PROFLOW | | | | Details |
| PLG | Plug Log | | | | Details |
| plg | pulling | | | | Details |
| plg | plagioclase | | | | Details |
| plgd | plugged | | | | Details |
| PLGR | Gamma-Ray | | | | Details |
| Plgrp | Plannergruppe | | | | Details |
| PLI | Production Log Interpretation | | | | Details |
| PLI | Petrophysical Log Interpretation | | | | Details |
| PLI | Preliminary Log Interpretation | | | | Details |
| Plio | Pliocene | | | | Details |
| PLL | Potential Loss of Life | | | | Details |
| PLL | Potential Loss of Life (HSEQ) | | | | Details |
| PLL7 | Fitting Coefficient for Resistivity given | | | | Details |
| PLL8 | Fitting Coefficient for Resistivity given | | | | Details |
| PLLD | Fitting Coefficient for Resistivity given | | | | Details |
| PLLS | Fitting Coefficient for Resistivity given | | | | Details |
| PLM | Pre-Laid Mooring (Offshore Rig) | | | | Details |
| PLMB | plumbing | | | | Details |
| PLMV | Production lower master valve | | | | Details |
| pln | plan | | | | Details |
| PLN | Polish Zloty | | | | Details |
| plngr | plunger | | | | Details |
| PLO | pipeline oil | | | | Details |
| PLO | pumping load oil pilot | | | | Details |
| PLO | Project List Overview | | | | Details |
| PLPR | Well Pressure | | | | Details |
| PLQL | Production Logging Quick Look (Schlumberger software) | | | | Details |
| PLRC | Professional Ladder Review Committee (old designation for CLRC) | | | | Details |
| PLS | Position Location System | | | | Details |
| PLS | Prozessleitsystem | | | | Details |
| PLS | Porosity Log - Sonic | | | | Details |
| plsl | palesol | | | | Details |
| PLSS | Public Land Survey System | | | | Details |
| PLT | Production Logging Tool (well) | | | | Details |
| PLT | Production Logging Tool | | | | Details |
| plt | pilot | | | | Details |
| PLT | pipeline terminal | | | | Details |
| plt | plant | | | | Details |
| PLT | Simultaneous Production Log | | | | Details |
| PLTQ | Production Logging Tool Quicklook Log | | | | Details |
| PLTRE | Production Logging Tool Report | | | | Details |
| plty | platy | | | | Details |
| PLUG | Plug | | | | Details |
| PLUS_15V | +15 V supply | | | | Details |
| PLUS_15V_SL | +15 V supply - Station Log | | | | Details |
| PLUS_5V | +5 V supply | | | | Details |
| PLUS_5V_SL | +5 V supply - Station Log | | | | Details |
| PLUT | Plus Calibration Temperature | | | | Details |
| PLV | pilot loaded valve | | | | Details |
| PLW | PALAU | | | | Details |
| PLW | pipe lapweld | | | | Details |
| PLZ | Polish zloty | | | | Details |
| PMCU_DL | Pump Motor Current | | | | Details |
| PML | Proximity Log/Calliper/Microlog | | | | Details |
| PML | production management | | | | Details |
| PML | Proximity-Microlog | | | | Details |
| PMLL | Fitting Coefficient for Resistivity given | | | | Details |
| PNL | pulsed neutron log | | | | Details |
| pnl | panel | | | | Details |
| PNL | BD panel board | | | | Details |
| PNL | Neutron Limestone Porosity | | | | Details |
| PODC_DL | MRPO Duty Cycle | | | | Details |
| POET_DL | MRPO Elapsed Pumping Time | | | | Details |
| POHOL | Private Oil Holdings Oman Ltd. Oman | | | | Details |
| POHP_DL | MRPO Hydraulic Pressure | | | | Details |
| POL | POLAND | | | | Details |
| pol | polish(ed) | | | | Details |
| POL | Perforating Orientation Log | | | | Details |
| POLC | Polarization Correction (Ratio of | | | | Details |
| POLC_SL | Polarization Correction (Ratio of | | | | Details |
| POLICOLSA | Poliolefinas Colombianas S.A. Colombia | | | | Details |
| poly | polymerization, polymerized | | | | Details |
| poly | cl polyethylene | | | | Details |
| poly | poly | | | | Details |
| polygas | polymerized gasoline | | | | Details |
| polypl | polypropylene | | | | Details |
| polyxl | polycrystalline | | | | Details |
| POMC_DL | MRPO Motor Current | | | | Details |
| POMS_DL | MRPO Motor Speed | | | | Details |
| POOL | PO Oil Level | | | | Details |
| POOL_DL | MRPO Oil Level | | | | Details |
| POPR_DL | MRPO Raw Hydraulic Pressure | | | | Details |
| POPV_DL | MRPO Hydraulic Pump Volume Output | | | | Details |
| POP_DL | MRPO Output Pressure | | | | Details |
| POS3_DL | MRPO Solenoid 3 Status | | | | Details |
| POSO_DL | MRPO Solenoid Status | | | | Details |
| POSW_DL | MRPO Sequence Status Word | | | | Details |
| POT (able) | POTable water | | | | Details |
| PPL | Pakistan Petroleum Limited | | | | Details |
| PPL | Polymer Pathfinder Log | | | | Details |
| PPL | Pakistan Petroleum Ltd. Pakistan | | | | Details |
| PPL | Pocket Production Logging | | | | Details |
| PPL | Pre-perforated liner | | | | Details |
| PPL | Pre-Perforated (Holed) Liner | | | | Details |
| PPL | People | | | | Details |
| PPLC | Professional Personnel Leadership Committee | | | | Details |
| PPLI | Preliminary Petrophysical Log Interpretation | | | | Details |
| PPUC_DL | MRPP Surface Current | | | | Details |
| PPUV_DL | MRPP Surface Voltage | | | | Details |
| prelim | preliminary | | | | Details |
| PRFL | Proppant Flowrate | | | | Details |
| PRL | Pipe Recovery Log | | | | Details |
| PRL | Pipe Recovery | | | | Details |
| PRLS | LDS Long-Spaced Pileup Rejection Countrate Count_Rate | | | | Details |
| prly | pearly | | | | Details |
| prncpl-lss | principal lessee(s) | | | | Details |
| PROPEL | Produtos de Petroleo Lda. Portugal | | | | Details |
| PROX/ML | Proximity Minilog | | | | Details |
| PROXL | Proximity Log | | | | Details |
| prpl | purple | | | | Details |
| PRXL | Proximity | | | | Details |
| PSFL | Fitting Coefficient for Resistivity given | | | | Details |
| PSHL | Pressure switch High Low | Pressure pilot high low | | | Details |
| PSL | Product Specification Level | | | | Details |
| PSL | Product Service Line | | | | Details |
| PSL | Pressure Safety Low (low pressure pilot) | | | | Details |
| PSL | Pressure Switch Low | | | | Details |
| PSL | product specification level A rating for wellheads | | | | Details |
| PSL | public school land | | | | Details |
| PSL | pipe sleeve | | | | Details |
| PSL | Sonic Limestone Porosity | | | | Details |
| PSLG | PCLOG Divided By Square Root of Associated None | | | | Details |
| PSLOG | Pressure Log | | | | Details |
| PSPL | PSP Leak Detection Log | | | | Details |
| PSSL | LDS Long-Spaced Pulse Shape Compensation | | | | Details |
| PSTL | Project Services Team Lead | | | | Details |
| PSUL | LDS Long-Spaced Pulse Shape Compensation | | | | Details |
| PSVAL | Pressure Evaluation Log | | | | Details |
| ptcl | particles | | | | Details |
| PTIL | Petroleum Safety Authority in Norway | | | | Details |
| PtL | Produce the Limit | | | | Details |
| PTL | Production Technical Limit™ (BP Process)/Produce The Limit | | | | Details |
| PTL | production technical limits | | | | Details |
| PTNO_DL | Pretest Number | | | | Details |
| PTPL | Fitting Coefficient of the Propagation | | | | Details |
| PTT1_DL | Pretest Type 1 | | | | Details |
| PTT2_DL | Pretest Type 2 | | | | Details |
| PTT3_DL | Pretest Type 3 | | | | Details |
| PTV1_DL | Pretest Volume 1 | | | | Details |
| PTV2_DL | Pretest Volume 2 | | | | Details |
| PTV3_DL | Pretest Volume 3 | | | | Details |
| PTVL | MRTT pretest volume | | | | Details |
| PULS | pulse(sating)(sation) | | | | Details |
| PULSES_SL | Water Flow Number Pulses | | | | Details |
| PVOL | production volume | | | | Details |
| PWL | Producing Water Level | | | | Details |
| pyls | pyrolysis | | | | Details |
| pyrclas | pyroclastic | | | | Details |
| PZFL | Interpretation Zone | | | | Details |
| Q-Tel | Qatar Public Telecommunications Corporation | | | | Details |
| QCL | Pore Volume Clay | | | | Details |
| QCNL | Standard Deviation on Neutron Porosity | | | | Details |
| QDPF_TL | Manometer Quartzdyne Pressure Frequency | | | | Details |
| QDTF_TL | Manometer Quartzdyne Temperature Frequency Frequency | | | | Details |
| QEL | Flow Entry Light (Phase) | | | | Details |
| QFLG | Quality Indicator Flag | | | | Details |
| QHWM_DL | Quality Water Holdup Model | | | | Details |
| QILD | Standard Deviation on Conductivity given | | | | Details |
| QILM | Standard Deviation on Conductivity given | | | | Details |
| QL | Quicklook Log | | | | Details |
| QL01 | Liquid Flowrate Channel 01 | | | | Details |
| QL02 | Liquid Flowrate Channel 02 | | | | Details |
| QL03 | Liquid Flowrate Channel 03 | | | | Details |
| QL04 | Liquid Flowrate Channel 04 | | | | Details |
| QL05 | Liquid Flowrate Channel 05 | | | | Details |
| QL06 | Liquid Flowrate Channel 06 | | | | Details |
| QL07 | Liquid Flowrate Channel 07 | | | | Details |
| QL08 | Liquid Flowrate Channel 08 | | | | Details |
| QL09 | Liquid Flowrate Channel 09 | | | | Details |
| QL10 | Liquid Flowrate Channel 10 | | | | Details |
| QLA | Quick Look Analysis | | | | Details |
| QLCC | QT Liquid Contribution Channel | | | | Details |
| QLCH | Liquid Channel Flowrate | | | | Details |
| QLDT | Slim Xtreme Litho-Density Tool | | | | Details |
| QLL7 | Standard Deviation on Resistivity given by Standard_Deviation | | | | Details |
| QLL8 | Standard Deviation on Resistivity given by Standard_Deviation | | | | Details |
| QLLD | Standard Deviation on Resistivity given by Standard_Deviation | | | | Details |
| QLLS | Standard Deviation on Resistivity given by Standard_Deviation | | | | Details |
| QLP | Production - Light Phase | | | | Details |
| QLRA | Rxo/Rt Ratio Normalized to SP | | | | Details |
| QLS | Quality Long Spacing | | | | Details |
| QLTY | Survey quality: GOOD or BAD versus | | | | Details |
| QMLL | Standard Deviation on Resistivity given by Standard_Deviation | | | | Details |
| QOIL | Flowrate Oil | | | | Details |
| QOL | Quality Of Living | | | | Details |
| QOLA | Quality of Living Allowance | | | | Details |
| QPNL | Uncertainty Factor on Limestone Neutron | | | | Details |
| QRLS | Quality Ratio Long Spacing | | | | Details |
| QSFL | Standard Deviation on Resistivity given by Standard_Deviation | | | | Details |
| QSLT | Slim Xtreme Sonic Logging Tool | | | | Details |
| QSVM_DL | Quality Superficial Velocity Model | | | | Details |
| QTDE_TL | Total Estimated Downhole Flowrate | | | | Details |
| QTLC | Quality of Time - Long Compressional | | | | Details |
| QTLS | Quality of Time - Long Shear | | | | Details |
| QTPL | Standard Deviation of Propagation Time | | | | Details |
| QUAL | qualitative | | | | Details |
| qual | quality | | | | Details |
| QUAL | quality indicator | | | | Details |
| QVCL | Standard Deviation of Errors on VCL | | | | Details |
| R&L | road & location | | | | Details |
| R&LC | road & location complete | | | | Details |
| R/L | revolution per liter | | | | Details |
| RA1C_TL | Spinner 1 Arch | | | | Details |
| RA2C_TL | Spinner 2 Arch | | | | Details |
| RACLM | Resistivity LWD deep | | | | Details |
| RAFL | radius flag | | | | Details |
| RAGL | raw gas lift | | | | Details |
| RALOG | running radioactive log | | | | Details |
| Rat hole | In the context of a drilling rig, a rat hole is the hole through the rig floor where the kelly can be stored when it has to be disconnected | | | | Details |
| Rat hole | In the context of a well, a rat hole is the hole below the pay zone. Commonly drilled to drop off perforating guns of a gathering or sump area for liquids to separate from gas prior to being pumped. | | | | Details |
| RAT(GAS,OIL) | GasOilRatio | | | | Details |
| RAT(LONG,TRNV) | Longitudinal to Transverse Ratio | | | | Details |
| RAT(NOISE,SIGNAL) | Noise to Signal Ratio | | | | Details |
| RAT(SIGNAL,NOISE) | Signal to Noise Ratio | | | | Details |
| RAT(WAT,OIL) | WaterOil Ratio | | | | Details |
| RAW_RFPD_DL | Raw Probe Depth | | | | Details |
| rayl | rayl | | | | Details |
| RBBL | Reservoir Barrel | | | | Details |
| RBGL | Riser Based Gas Lift | | | | Details |
| RBLR | reboiler | | | | Details |
| Rbls | rubber balls | | | | Details |
| rbly | rubbly | | | | Details |
| RBO0_DL | Raw Oil Bubble counts | | | | Details |
| RBO1_DL | Raw Oil Bubble counts | | | | Details |
| RBO2_DL | Raw Oil Bubble counts | | | | Details |
| RBO3_DL | Raw Oil Bubble counts | | | | Details |
| RBO4_DL | Raw Oil Bubble counts | | | | Details |
| RBO5_DL | Raw Oil Bubble counts | | | | Details |
| RBW0_DL | Raw Water Bubble Count | | | | Details |
| RBW1_DL | Raw Water Bubble Count | | | | Details |
| RBW2_DL | Raw Water Bubble Count | | | | Details |
| RBW3_DL | Raw Water Bubble Count | | | | Details |
| RBW4_DL | Raw Water Bubble Count | | | | Details |
| RBW5_DL | Raw Water Bubble Count | | | | Details |
| RCAL | Routine Core Analysis | | | | Details |
| RCAL | Raw CALI | | | | Details |
| RCAL_TL | Raw Caliper | | | | Details |
| RCCL | Raw CCL Amplitude | | | | Details |
| RCL | Retainer Correlation Log | | | | Details |
| RCL | Resistivity of Clay | | | | Details |
| RCMD_DL | Raw Coring Motor Downhole Voltage | | | | Details |
| RCRA_DL | RAW Centralizer Radius | | | | Details |
| RCYL | recycle | | | | Details |
| RDAL | Deep Attenuation Resistivity from 500 KHZ frequ. | | | | Details |
| RDL | Reservoir Data Log | | | | Details |
| RDPL | Deep Phase Resistivity from 500 KHZ frequ. | | | | Details |
| RDSW_DL | RFT Downhole Status Word | | | | Details |
| REAL | Regulations Alignment Plattform | | | | Details |
| RECL | Raw Eddy Current, Lower Array | | | | Details |
| redrld | redrilled | | | | Details |
| refl | reflection | | | | Details |
| refl | reflux | | | | Details |
| REFL | Reflection Coefficient | | | | Details |
| rel | relay | | | | Details |
| rel | release(ed) | | | | Details |
| REL | running electric log | | | | Details |
| rel | relative | | | | Details |
| REL | relative | | | | Details |
| REL1_HR | Eddy Current Lower Pad-1 HiRes Uncal | | | | Details |
| REL2_HR | Eddy Current Lower Pad-2 HiRes Uncal | | | | Details |
| REL3_HR | Eddy Current Lower Pad-3 HiRes Uncal | | | | Details |
| REL4_HR | Eddy Current Lower Pad-4 HiRes Uncal | | | | Details |
| REL5_HR | Eddy Current Lower Pad-5 HiRes Uncal | | | | Details |
| REL6_HR | Eddy Current Lower Pad-6 HiRes Uncal | | | | Details |
| reloc | relocate(ed) | | | | Details |
| RELX | relaxation | | | | Details |
| repl | replace(ment) | | | | Details |
| REPSOL | Repsol S.A. (formerly “Hispanoil”)(see Repsol-YPF) Spain | | | | Details |
| REPSOL-YPF | Former Hispanoil (Spain) & YPF (Argentina) Spain | | | | Details |
| RESFL | Reservoir Fluid | | | | Details |
| RESL | Reservoir Log | | | | Details |
| RESL | Casing Resistance L | | | | Details |
| RF10_SL | Far Count Rate From Gate 10 | | | | Details |
| RF11_SL | Far Count Rate From Gate 11 | | | | Details |
| RF12_SL | Far Count Rate From Gate 12 | | | | Details |
| RF13_SL | Far Count Rate From Gate 13 | | | | Details |
| RF14_SL | Far Count Rate From Gate 14 | | | | Details |
| RF15_SL | Far Count Rate From Gate 15 | | | | Details |
| RF16_SL | Far Count Rate From Gate 16 | | | | Details |
| RF1_SL | Far Count Rate From Gate 01 | | | | Details |
| RF2_SL | Far Count Rate From Gate 02 | | | | Details |
| RF3_SL | Far Count Rate From Gate 03 | | | | Details |
| RF4_SL | Far Count Rate From Gate 04 | | | | Details |
| RF5_SL | Far Count Rate From Gate 05 | | | | Details |
| RF6_SL | Far Count Rate From Gate 06 | | | | Details |
| RF7_SL | Far Count Rate From Gate 07 | | | | Details |
| RF8_SL | Far Count Rate From Gate 08 | | | | Details |
| RF9_SL | Far Count Rate From Gate 09 | | | | Details |
| RFL1_HR | Flux Leakage Lower Pad-1 HiRes Uncal | | | | Details |
| RFL2_HR | Flux Leakage Lower Pad-2 HiRes Uncal | | | | Details |
| RFL3_HR | Flux Leakage Lower Pad-3 HiRes Uncal | | | | Details |
| RFL4_HR | Flux Leakage Lower Pad-4 HiRes Uncal | | | | Details |
| RFL5_HR | Flux Leakage Lower Pad-5 HiRes Uncal | | | | Details |
| RFL6_HR | Flux Leakage Lower Pad-6 HiRes Uncal | | | | Details |
| RFLCT | reflect(ed)(ing)(tion) | | | | Details |
| RFLL | Raw Flux Leakage, Lower Array | | | | Details |
| RFLNG | Ready for Liquefied Natural Gas | | | | Details |
| RFLNG | Ready for LNG | | | | Details |
| RFLS | Raw Long Spacing Control Loop Frequency | | | | Details |
| RFLU | Raw Flux Leakage, Upper Array | | | | Details |
| RFPD_DL | Probe Depth | | | | Details |
| RFQL | Repeat Formation Tester Quicklook | | | | Details |
| RFVL | Raw Fluid Acoustic Slowness (Fluid | | | | Details |
| RGAS_DL | Raw Gas Detector Data (Depth Logging) | | | | Details |
| RGL | Rohr- und Gerätelager|| | Pipe and equipment storage | Rohr- und Ausrüstung Lagerung | Tuyaux et équipements de stockage | Details |
| RGL | Rohr- und Gerätelager | Tubular and tools warehouse | | | Details |
| RGR2_SL | TSGT Raw Gamma Ray - Station Log | | | | Details |
| RGR_SL | Raw Gamma Ray | | | | Details |
| RHL | LDS Long-Spaced Bulk Density | | | | Details |
| RHL1 | Hires Raw LSW1 | | | | Details |
| RHL2 | Hires Raw LSW2 | | | | Details |
| RHL3 | Hires Raw LSW3 | | | | Details |
| RHL4 | Hires Raw LSW4 | | | | Details |
| RHL5 | Hires Raw LSW5 | | | | Details |
| RHLA | HRDD Long Spacing Apparent Density | | | | Details |
| RHLI | Raw High-Resolution Litholog Counts | | | | Details |
| RHLL | Raw High-Resolution Long Lower Counts | | | | Details |
| RHLS | Raw High-Resolution Long Spacing Counts | | | | Details |
| RHLU | Raw High-Resolution Long Spacing Upper | | | | Details |
| RHMD_DL | Raw Hydraulic Motor Downhole Voltage | | | | Details |
| RHOBCL | bulk density of clay | | | | Details |
| RHOL | Long Spacing Bulk Density | | | | Details |
| RHPP_DL | Raw Hydraulic Pump Pressure | | | | Details |
| RIL | Riliance Company® | | | | Details |
| RIL | Reliance Industries limited | | | | Details |
| RIL | red indicating lamp | | | | Details |
| RILD | Raw CILD Conductivity | | | | Details |
| RILM | Raw CILM Conductivity | | | | Details |
| RILX | Raw CILX Susceptibility | | | | Details |
| RL | Relief line | | | | Details |
| RL | random lengths | | | | Details |
| rl | Reference Log | | | | Details |
| RLA | Raw Large Arm | | | | Details |
| RLA5 | Deep resistivity | | | | Details |
| RLAM | Raw Lower Attenuation (Module) | | | | Details |
| RLAT | Raw Lower Attenuation from Downhole Tool | | | | Details |
| RLCA | LDS Raw Caliper | | | | Details |
| RLCP | Raw SPST Lower Chamber Pressure | | | | Details |
| rlf | relief | | | | Details |
| rlg | railing | | | | Details |
| RLGR | Raw Lower Detector Gamma Ray | | | | Details |
| RLIT | Raw Lithology Count Rate | | | | Details |
| RLIW | Raw Image | | | | Details |
| RLIW_DL | Raw Image | | | | Details |
| RLL | Recorded Lithology Log | | | | Details |
| RLL | Laterolog Resistivity | | | | Details |
| RLL | Raw LL Count Rate | | | | Details |
| RLL8 | Raw LL8 Conductivity | | | | Details |
| RLLD | Raw Laterolog Deep (Resistivity) | | | | Details |
| RLLL | Raw Long Lower Lower Cesium Peak Window | | | | Details |
| RLLS | Raw Laterolog Shallow (Resistivity) | | | | Details |
| RLLU | Raw Long Lower Upper Cesium Peak Window | | | | Details |
| RLOF | Rock Load-out Facility | | | | Details |
| RLOF | Raw Noise in Low Frequency Spectrum | | | | Details |
| RLPR | Lower Plus reference | | | | Details |
| RLS | Raw Long Spacing Count Rate | | | | Details |
| rls(d)(ing) | release(ed)(ing) | | | | Details |
| RLS1 | Raw Long Spacing Window 1 | | | | Details |
| RLS2 | Raw Long Spacing Window 2 | | | | Details |
| RLS3 | Raw Long Spacing Window 3 | | | | Details |
| RLS4 | Raw Long Spacing Window 4 | | | | Details |
| RLS5 | Raw Long Spacing Window 5 | | | | Details |
| RLSW | Raw Limit Switch | | | | Details |
| RLSW_DL | Raw Limit Switch | | | | Details |
| RLT | RigLess testing | | | | Details |
| RLT | Reservoir Limit Test | | | | Details |
| RLU | Raw Long Upper Count Rate | | | | Details |
| RLU1 | Raw Long Upper 1 Count Rate | | | | Details |
| RLU2 | Raw Long Upper 2 Count Rate | | | | Details |
| RLUL | Raw Long Upper Lower Cesium Peak Window | | | | Details |
| RLUU | Raw Long Upper Upper Cesium Peak Window | | | | Details |
| RLWA | Raw Waveform | | | | Details |
| RLWA_DL | Raw Waveform | | | | Details |
| RLWI | Rig Less Well Intervention | | | | Details |
| RLWI | Riserless Light Well Intervention | | | | Details |
| rly | relay | | | | Details |
| RMAL | Medium Attenuation Resistivity from 500 KHZ frequ. | | | | Details |
| RMLC | Request for Mineral Land Clearance | | | | Details |
| RMLL | Resistivity from Microlaterolog | | | | Details |
| RMLL | Resistivity from Micro Laterolog | | | | Details |
| RMLL | Raw MLL | | | | Details |
| RMPL | Medium Phase Resistivity from 500 KHZ frequ. | | | | Details |
| RMS_NOISE_SL | RMS Noise - Station Log | | | | Details |
| rmv(l) | remove(al)(able) | | | | Details |
| RN10_SL | Near Count Rate From Gate 10 | | | | Details |
| RN11_SL | Near Count Rate From Gate 11 | | | | Details |
| RN12_SL | Near Count Rate From Gate 12 | | | | Details |
| RN13_SL | Near Count Rate From Gate 13 | | | | Details |
| RN14_SL | Near Count Rate From Gate 14 | | | | Details |
| RN15_SL | Near Count Rate From Gate 15 | | | | Details |
| RN16_SL | Near Count Rate From Gate 16 | | | | Details |
| RN1_SL | Near Count Rate From Gate 01 | | | | Details |
| RN2_SL | Near Count Rate From Gate 02 | | | | Details |
| RN3_SL | Near Count Rate From Gate 03 | | | | Details |
| RN4_SL | Near Count Rate From Gate 04 | | | | Details |
| RN5_SL | Near Count Rate From Gate 05 | | | | Details |
| RN6_SL | Near Count Rate From Gate 06 | | | | Details |
| RN7_SL | Near Count Rate From Gate 07 | | | | Details |
| RN8_SL | Near Count Rate From Gate 08 | | | | Details |
| RN9_SL | Near Count Rate From Gate 09 | | | | Details |
| RNDL | Raw Neutron Depth Log | | | | Details |
| ROBL | Bulk Density, Left Quadrant | | | | Details |
| ROGL | rotative gas lift | | | | Details |
| ROL | Re-Order Level | | | | Details |
| ROL | rig on location | | | | Details |
| ROL | Romainian leu | | | | Details |
| ROLA | Long Spacing Bulk Density, Real-Time | | | | Details |
| ROLB | Long Spacing Bulk Density, Bottom Quadrant Bulk_Density | | | | Details |
| ROLL | Long Spacing Bulk Density, Left Quadrant | | | | Details |
| ROLR | Long Spacing Bulk Density, Right Quadrant | | | | Details |
| ROLS | Long Spacing Bulk Density | | | | Details |
| ROLU | Long Spacing Bulk Density, Up Quadrant | | | | Details |
| ROML | Bulk Density, Rotationally Corrected, Left Bulk_Density | | | | Details |
| ROSL | Short Spacing Bulk Density, Left Quadrant | | | | Details |
| ROTL | Rotary Level | | | | Details |
| ROTLX | Reference Our TeLeX ...(date) | | | | Details |
| ROV0_DL | Raw Sigma Oil Velocity Bubble | | | | Details |
| ROV1_DL | Raw Sigma Oil Velocity Bubble | | | | Details |
| ROV2_DL | Raw Sigma Oil Velocity Bubble | | | | Details |
| ROV3_DL | Raw Sigma Oil Velocity Bubble | | | | Details |
| ROV4_DL | Raw Sigma Oil Velocity Bubble | | | | Details |
| ROV5_DL | Raw Sigma Oil Velocity Bubble | | | | Details |
| RPL | Reliance Petroleum Ltd. India | | | | Details |
| RPPV_DL | Kinematics Pressure | | | | Details |
| RPRL | RAW Probe Radius | | | | Details |
| RPRL_DL | RAW Probe Radius | | | | Details |
| RRLE | Rigid rod length | | | | Details |
| RRPP_DL | Raw Kinematics Pressure | | | | Details |
| RS1C_TL | Spinner 1 Frequency | | | | Details |
| RS2C_TL | Spinner 2 Frequency | | | | Details |
| RSAL | Shallow Attenuation Resistivity from 500 KHZ frequ. | | | | Details |
| RSCU_DL | Raw Solenoid Current | | | | Details |
| RSFL | Raw SFL Conductivity | | | | Details |
| RSGP_DL | Raw Strain Gauge Pressure | | | | Details |
| RSLL | Raw Short Lower Lower Cesium Peak Window | | | | Details |
| RSLU | Raw Short Lower Upper Cesium Peak Window | | | | Details |
| RSO0_DL | Raw Oil Superficial Velocity | | | | Details |
| RSO1_DL | Raw Oil Superficial Velocity | | | | Details |
| RSO2_DL | Raw Oil Superficial Velocity | | | | Details |
| RSO3_DL | Raw Oil Superficial Velocity | | | | Details |
| RSO4_DL | Raw Oil Superficial Velocity | | | | Details |
| RSO5_DL | Raw Oil Superficial Velocity | | | | Details |
| RSPC_DL | Raw Spectrometer Data (Depth Logging) | | | | Details |
| RSPL | Shallow Phase Resistivity from 500 KHZ frequ. | | | | Details |
| RSSW_DL | RFT Shoot Status Word | | | | Details |
| RSTS_DL | Raw Solenoid Status | | | | Details |
| RSUL | Raw Short Upper Lower Cesium Peak Window | | | | Details |
| RSVL | Relative Steel Volume | | | | Details |
| RSW0_DL | Raw Water Superficial Velocity | | | | Details |
| RSW1_DL | Raw Water Superficial Velocity | | | | Details |
| RSW2_DL | Raw Water Superficial Velocity | | | | Details |
| RSW3_DL | Raw Water Superficial Velocity | | | | Details |
| RSW4_DL | Raw Water Superficial Velocity | | | | Details |
| RSW5_DL | Raw Water Superficial Velocity | | | | Details |
| RTE-AMSL | Rotary Table Elevation - Above Mean Sea Level | | | | Details |
| RTE-MSL | Rotary Table Elevation -above Mean Sea Level | | | | Details |
| RTES_DL | Raw SGP Temperature | | | | Details |
| RTFL | Radius + Thickness Flag | | | | Details |
| RTL | Realizing The Limit | | | | Details |
| RTL | Refinery Technology Laboratory | | | | Details |
| RTLS | Raw Long Spacing Loop Transits | | | | Details |
| rtlt | rootless | | | | Details |
| RTLTM | rate too low to measure | | | | Details |
| RTNO_DL | Pretest Number | | | | Details |
| RTPL | Recomputed Time Propagation Log | | | | Details |
| RT_212L | Resistivity filtered 212L | | | | Details |
| RUL | Regular unleaded gasoline | | | | Details |
| RVDL | Radii Variable Density Log | | | | Details |
| RVL1 | L Potential Difference in Step 1 | | | | Details |
| RVL2 | L Potential Difference in Step 2 | | | | Details |
| RVL3 | L Potential Difference in Step 3 | | | | Details |
| RVRL | Caliper Real Voltage Ratio-Long Spacing | | | | Details |
| RWV0_DL | Raw Sigma Water Velocity Bubble | | | | Details |
| RWV1_DL | Raw Sigma Water Velocity Bubble | | | | Details |
| RWV2_DL | Raw Sigma Water Velocity Bubble | | | | Details |
| RWV3_DL | Raw Sigma Water Velocity Bubble | | | | Details |
| RWV4_DL | Raw Sigma Water Velocity Bubble | | | | Details |
| RWV5_DL | Raw Sigma Water Velocity Bubble | | | | Details |
| RYTLX | Reference Your TeLeX...(date) | | | | Details |
| s'lY | southerly | | | | Details |
| S,ly | southerly | | | | Details |
| S.L. | sea level | | | | Details |
| S/L | Slickline | | | | Details |
| S/R B/L | Signing and Releasing Bill(s) of Lading | | | | Details |
| S0NL | Sonic log | | | | Details |
| S1CL | HNGS Detector 1 Low Level Discriminator | | | | Details |
| S1C_TL | Spinner 1 | | | | Details |
| S1F_TL | Spinner 1 Filtered | | | | Details |
| S1LE | HNGS Detector 1 High Voltage Loop Error | | | | Details |
| S2CL | HNGS Detector 2 Low Level Discriminator | | | | Details |
| S2C_TL | Spinner 2 | | | | Details |
| S2F_TL | Spinner 2 Filtered | | | | Details |
| S2LE | HNGS Detector 2 High Voltage Loop Error | | | | Details |
| S7HL | SenTREE 7 Helical Latch | | | | Details |
| S7LC | SenTREE 7 Lubricator Centraliser | | | | Details |
| S7LM | SenTREE 7 Latch Mandrel | | | | Details |
| S7LV | SenTREE 7 Lubricator Valve | | | | Details |
| Sackloch | Rat hole | | | | Details |
| sadl | saddle | | | | Details |
| Sal | Salado | | | | Details |
| sal | salary, salaried | | | | Details |
| sal | salinity | | | | Details |
| Sal | Bay Saline Bayou | | | | Details |
| SAL | Salinity | | | | Details |
| SALD | Statistical Uncertainty in Dry Weight | | | | Details |
| SALF | Flag for Low Sonic Amplitude | | | | Details |
| SALM | Single Anchor Loading Mooring | | | | Details |
| salv | salvage | | | | Details |
| SALW | Statistical Uncertainty in Wet Weight | | | | Details |
| SAML | Sample Log | | | | Details |
| SAND_FLOWRATE | Unconsolidated sand solid flowrate in a | | | | Details |
| SASOL | South African Coal, Oil and Gas Corp. Ltd. South Africa | | | | Details |
| SBFA_FIL | RST Sigma Borehole Far Apparent Filtered | | | | Details |
| SBHF_SL | Sigma Borehole - Far Detector | | | | Details |
| SBHN_SL | Sigma Borehole - Near Detector | | | | Details |
| SBL | Segment Bond Log | | | | Details |
| SBLD | Bound Water Saturation from the LDT Tool | | | | Details |
| SBNA_FIL | RST Sigma Borehole Near Apparent Filtered | | | | Details |
| SC DL | slip and cut drill time | | | | Details |
| SCAL | Special core analysis | | | | Details |
| SCAL | LDS Caliper Status | | | | Details |
| SCBL | Synthetic CBL from Short Attenuation | | | | Details |
| SCCL | Shifted Casing Collar Locator | | | | Details |
| SCFIL | Structurally Consistent Filtering | | | | Details |
| SCHL | Sum of Capture CL + H | | | | Details |
| Schl. | Schlumberger | | | | Details |
| Schl., | Sj Schlumberger | | | | Details |
| Schleuse | Lubricator for running | | | | Details |
| SCHLL | Schlumberger Log also SCHLO, SCHLU | | | | Details |
| Schlucksonde | Schluckbohrung | Disposal well, | | | Details |
| Scholle | Block (a compartment of reservoir) Geology, | | | | Details |
| SCL | Strategic Cost Leadership | | | | Details |
| SCL | slickline collar locator | | | | Details |
| SCL | Sonic Caliper | | | | Details |
| SCL | Sonic Caliper Log | | | | Details |
| SCLSS | Slim Compensated Long Spaced Sonic | | | | Details |
| scly | securaloy | | | | Details |
| SCNL | Status of CNL | | | | Details |
| scolc | scolescodonts | | | | Details |
| SCSN_DL | Sample Chamber Sample Number | | | | Details |
| SCSW_SLDT | SLDT Short Spacing Composite Status Word | | | | Details |
| SCUR_DL | Solenoid Current | | | | Details |
| SDL | Supplier Document List | | | | Details |
| SDL | Spectral Density Log | | | | Details |
| SDL | shut down to log | | | | Details |
| SDL | Spectral Density Logging Tool | | | | Details |
| SDLA | Slowing Down Length From CNTG AMBE Source | | | | Details |
| SDLC | Systems Development Life Cycle | | | | Details |
| SDLF | Standard Deviation of Short(DWS1) Fast | | | | Details |
| SDLS | Standard Deviation of Short(DWS1) | | | | Details |
| sdoilfract | sand-oil fracked | | | | Details |
| SDPL | shut down for pipeline | | | | Details |
| SDSI_SL | Standard Deviation of Sigma | | | | Details |
| SDSW_SLDT | SLDT Short Spacing Detector Status | | | | Details |
| SDWL | sidewall core | | | | Details |
| SDWL | sidewall | | | | Details |
| SEAL | Seal Signal | | | | Details |
| SEBLMX | SapuraOMV Block 30, S. de R.L. de C.V. | | | | Details |
| SEDL | Sedimentology Log | | | | Details |
| sel | selenite | | | | Details |
| Sel | Selma | | | | Details |
| SELD | SSPA Gun Selection Data | | | | Details |
| SELECT | selection(tive)(tor) | | | | Details |
| SELFDISCH | SelfDischarger | | | | Details |
| SELV | Safety Extra Low Voltage | | | | Details |
| SEPIL | Shell Exploration and Production, Ireland | | | | Details |
| SET_LINE_PRES | Set Line Pressure | | | | Details |
| SFFA_FIL | RST Sigma Formation Far Apparent Filtered | | | | Details |
| SFFD_SL | Sigma Formation - Far Detector | | | | Details |
| SFL | Spherically Focused Log | | | | Details |
| SFL | Steel Flying Lead | | | | Details |
| SFL | starting fluid level | | | | Details |
| SFL | Sidewall Frac Log | | | | Details |
| SFL | Static Fluid Level | | | | Details |
| SFL | Spherically Focused Log | | | | Details |
| SFL DIL | Dual Induction | | | | Details |
| SFLA | SFL Resistivity Averaged over 2.5 Feet | | | | Details |
| SFLI | Stage Fluid Index | | | | Details |
| SFLN | Measure of SFL Minus Sqrt(Sigma**2+Tau**2) Spherically_Focused_Resistivit Resistivity | | | | Details |
| SFLP | Measure of SFL Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| SFLT | Value of SFL Which Would Have Been Read if Spherically_Focused_Resistivit Resistivity | | | | Details |
| SFLU | slight, weak, or poor fluorescence | | | | Details |
| SFLU | Spherical Focused Resistivity unaveraged | | | | Details |
| SFLU | SFL Resistivity Unaveraged | | | | Details |
| SFNA_FIL | RST Sigma Formation Near Apparent Filtered Neutron_Capture_Cross_Section | | | | Details |
| SFND_SL | Sigma Formation - Near Detector | | | | Details |
| SFPL | Squared Fracture Plausibility (By Steps of Fracture_Plausibility | | | | Details |
| sgl(s) | single(s) | | | | Details |
| SGLG | Strain Gauge Low Gain | | | | Details |
| SGLO | Strain Gauge Low Offset | | | | Details |
| SGPF_DL | Strain Gauge Frequency | | | | Details |
| SGP_DL | Strain Gauge Pressure | | | | Details |
| SHAL | Shallow Resistivity | | | | Details |
| SHCKLEVL | Shock_Level | | | | Details |
| SHDD_SLDT | SLDT Short Spacing HV DAC Diagnostic | | | | Details |
| SHEL | Shelly Rocks Facies | | | | Details |
| SHELL | Royal Dutch/Shell Group Netherlands/UK | | | | Details |
| SHELL IS | Shell Internal Standard | | | | Details |
| SHFF_SLDT | SLDT Short Spacing HV Form Factor | | | | Details |
| shl | shells | | | | Details |
| shld | shoulder | | | | Details |
| shls | shells | | | | Details |
| SHLS_SLDT | SLDT Short Spacing HV Loop Status | | | | Details |
| SHLT | shelter | | | | Details |
| shly | shaley | | | | Details |
| shly | shaly | | | | Details |
| SHMO_SLDT | SLDT Short Spacing HV Monitor | | | | Details |
| SHOWL | Show Log | | | | Details |
| SHRC_SLDT | SLDT Short Spacing HV Reference Channel | | | | Details |
| SHSP_SLDT | SLDT Short Spacing HV Set Point | | | | Details |
| SHVL | LDS Long-Spaced High Voltage Control Loop | | | | Details |
| SIAL | Log10 (SiO2/Al2O3) | | | | Details |
| SIBH_SL | Sigma Borehole Corrected | | | | Details |
| Siedeanalyse | Siedeanalyse | boiling analysis | | | Details |
| SIGC_SL | Sigma Correction | | | | Details |
| SIGM_SL | Sigma (Neutron Capture Cross-section) | | | | Details |
| SIL | Safety Integrity Review (HSE) | | | | Details |
| SIL | Safety Integrity Level | | | | Details |
| Sil | Silurian | | | | Details |
| SIL | Subsea Intervention Lubricator | | | | Details |
| sil | siliceous | | | | Details |
| silc | siliceous | | | | Details |
| SILI | Siliceous Rocks | | | | Details |
| silic | silica, siliceous | | | | Details |
| silt | siltstone | | | | Details |
| SILT | Silt | | | | Details |
| SILT | Silt Facies | | | | Details |
| SILU | Silver (AG) Uncertainty Output | | | | Details |
| SILV | Silver (AG) Tracer Count Rate Output | | | | Details |
| SIPETROL | Sociedad Internacional Petrolera S.A. Chile | | | | Details |
| skel | skeletal | | | | Details |
| SKPLT | Stick Plot Log | | | | Details |
| SL | Stream Line|| | Streamline | Rationalisieren | Rationaliser | Details |
| SL | Seismic Lines | | | | Details |
| SL | Surface Location | | | | Details |
| SL | Spectralog | | | | Details |
| SL | SIERRA LEONE | | | | Details |
| SL | see Slick Line | | | | Details |
| SL | Acoustic or Acoustilog | | | | Details |
| SL | Acoustic Velocity | | | | Details |
| SL | Sonic | | | | Details |
| SL | section line | | | | Details |
| sl | sleeve | | | | Details |
| SL | south line | | | | Details |
| SL | state lease | | | | Details |
| SL | Sonic log | | | | Details |
| SL | Spectralog® | | | | Details |
| SL | Premium small diameter bits | | | | Details |
| SL | Sluted Liner | | | | Details |
| SL | Slope | | | | Details |
| SL | Schlitzliner | Slotted Liner | | | Details |
| SL | Stream Line | | | | Details |
| sl | slightly | | | | Details |
| SL | Spectralog | | | | Details |
| SL | Saturation of Liquid | | | | Details |
| SL1 | Slim Line - SL41575 | | | | Details |
| SL1 | SC_1 Slew Rate | | | | Details |
| SL10 | SC_10 Slew Rate | | | | Details |
| SL10_DL | MRSC 10 Slew Rate | | | | Details |
| SL11 | SC_11 Slew Rate | | | | Details |
| SL11_DL | MRSC 11 Slew Rate | | | | Details |
| SL12 | SC_12 Slew Rate | | | | Details |
| SL12_DL | MRSC 12 Slew Rate | | | | Details |
| SL13 | SLEW RATE OUTPUT | | | | Details |
| SL14 | SLEW RATE OUTPUT | | | | Details |
| SL15 | SLEW RATE OUTPUT | | | | Details |
| SL1R | Stage LP Additive #1 Flowrate | | | | Details |
| SL1_DL | MRSC 1 Slew Rate | | | | Details |
| SL2 | Slim Line - SL41576 | | | | Details |
| SL2 | SC_2 Slew Rate | | | | Details |
| SL2R | Stage LP Additive #2 Flowrate | | | | Details |
| SL2_DL | MRSC 2 Slew Rate | | | | Details |
| SL3 | Slim Line - SL41606 | | | | Details |
| SL3 | SC_3 Slew Rate | | | | Details |
| SL3R | Stage LP Additive #3 Flowrate | | | | Details |
| SL3_DL | MRSC 3 Slew Rate | | | | Details |
| SL4 | Slim Line - SL41607 | | | | Details |
| SL4 | SC_4 Slew Rate | | | | Details |
| SL4R | Stage LP Additive #4 Flowrate | | | | Details |
| SL4_DL | MRSC 4 Slew Rate | | | | Details |
| SL5 | SC_5 Slew Rate | | | | Details |
| SL5_DL | MRSC 5 Slew Rate | | | | Details |
| SL6 | SC_6 Slew Rate | | | | Details |
| SL6_DL | MRSC 6 Slew Rate | | | | Details |
| SL7 | SC_7 Slew Rate | | | | Details |
| SL7_DL | MRSC 7 Slew Rate | | | | Details |
| SL8 | SC_8 Slew Rate | | | | Details |
| SL8_DL | MRSC 8 Slew Rate | | | | Details |
| SL9 | SC_9 Slew Rate | | | | Details |
| SL9_DL | MRSC 9 Slew Rate | | | | Details |
| SLA | South Lebanon Army | | | | Details |
| SLA | Service Level Agreements | | | | Details |
| SLA | Service Level Agreement | | | | Details |
| SLA | Service Level Agreement | | | | Details |
| SLA | Service Level Agreement | Dienstleistungsvereinbarung | | | Details |
| SLAK | Slack-off | | | | Details |
| SLAM | A combine: Signal Oil and Gas Co., Louisiana Land & Exploration Co., and Marathon Oil Co. | | | | Details |
| SLB | Schlumberger | | | | Details |
| SLB | SOLOMON ISLANDS | | | | Details |
| SLC | Shell Leadership Challenge | | | | Details |
| SLC | steel line correction | | | | Details |
| SLD | Stabilized Litho Density | | | | Details |
| sld | sealed | | | | Details |
| SLD | Static Limit Diagram | | | | Details |
| SLD | Stabilized Litho Density | | | | Details |
| SLD | Single Line Diagram | | | | Details |
| SLDE | Slurry Density | | | | Details |
| SLDT | Slimhole Litho-Density | | | | Details |
| SLDT | LDTC Status | | | | Details |
| SLE | SIERRA LEONE | | | | Details |
| SlGW | shut in gas well | | | | Details |
| sli | slight, slightly | | | | Details |
| sli | slight(ly) | | | | Details |
| Sli | Sligo | | | | Details |
| sli | SO slight show of oil | | | | Details |
| SLIM1 | Slim Hole Retrievable MWD Tool | | | | Details |
| SLIP | Displacement Amplitude | | | | Details |
| SLIR | Stationary Lithology Indicator Ratio | | | | Details |
| slky | silky | | | | Details |
| SLL | Sierra Leone Leone | | | | Details |
| SLM | slick line measurement | | | | Details |
| SLM | steel line measurement | | | | Details |
| SLNCR | silencer | | | | Details |
| slnd | solenoid | | | | Details |
| slo | slow | | | | Details |
| SLO | Acoustic_Slowness | | | | Details |
| SLOP | Slope from Least Squares Fit Used to | | | | Details |
| SLOVJA | OMV SLOVENIJA trgovina z nafto in naftnimi derivati, d.o.o. | | | | Details |
| SLOW | Slowness | | | | Details |
| SLP | Sea Level Pressure | | | | Details |
| SLP | Sonic Limit Porosity | | | | Details |
| SLPE | HLDS Statistical Uncertainty in Weighted | | | | Details |
| SLPI | Sampled Liquid Productivity Index (Q/L/P) | | | | Details |
| SLPR | sleeper | | | | Details |
| SLPRC | Sierra Leone Petroleum Refining Co. Ltd. Sierra Leone | | | | Details |
| SLPTA | SLop TAnks | | | | Details |
| SLS | SLS GR Log | | | | Details |
| SLS | slimline single-phase reservoir fluid sampler (SLB) | | | | Details |
| SLS | Sonic Log Spacing | | | | Details |
| SLS | Surface Liquid Sample | | | | Details |
| SLS-GR | Sonic Log Spacing-Gamma Ray | | | | Details |
| SLSR | Schlumberger Electronic Memory Gauge Recorder (Sapphire Type) | | | | Details |
| SLSR | Standard Deviation LSRH | | | | Details |
| SLT | Borehole Compensated Sonic Logging Tool | | | | Details |
| SLT | SLT GR Log | | | | Details |
| SLT | Standard Lease Terms | | | | Details |
| Slt | Mtn Salt Mountain | | | | Details |
| SLT | Borehole Compensated Sonic Log | | | | Details |
| SLT | Long-Spacing Sonic Log | | | | Details |
| SLT | Sonic Logging Tool | | | | Details |
| SLT | Sea Level Temperature | | | | Details |
| SLTST | Silt Stone | | | | Details |
| SLTST | SILTSTONE | | | | Details |
| slty | silty | | | | Details |
| Slty | salty | | | | Details |
| SLUR | slurry | | | | Details |
| SLV | Subsea Lubricator Valve | | | | Details |
| SLV | EL SALVADOR | | | | Details |
| slv | sleeve | | | | Details |
| SLV | Superficial Liquid Velocity | | | | Details |
| SMDM_SLDT | SLDT Short Spacing Detector Minus 6 V | | | | Details |
| SMDP_SLDT | SLDT Short Spacing Detector Plus 5 V | | | | Details |
| SMLS | Seamless Pipe | | | | Details |
| SMLS | Seamless PipeMPP: | | | | Details |
| smls | seamless | | | | Details |
| SMLT | Status of MLT | | | | Details |
| SMP5_SLDT | SLDT Short Spacing Plus 5 V PS Monitor | | | | Details |
| smpl | sample | | | | Details |
| SMT1_SLDT | SLDT Short Spacing Test Point 1 Monitor | | | | Details |
| SMT2_SLDT | SLDT Short Spacing Test Point 2 Monitor | | | | Details |
| SMT3_SLDT | SLDT Short Spacing Test Point 3 Monitor | | | | Details |
| SMT4_SLDT | SLDT Short Spacing Test Point 4 Monitor | | | | Details |
| SMT5_SLDT | SLDT Short Spacing Test Point 5 Monitor | | | | Details |
| SMTP_SLDT | SLDT Short Spacing Tail Pulse Gen Monitor | | | | Details |
| SMUL | Synthetic Seismogram (Convolved Primaries | | | | Details |
| SNL | Spectral Noise Log | | | | Details |
| SOAL | Average Standoff LEFT | | | | Details |
| Socal | Standard Oil Company of California | | | | Details |
| sol | solenoid | | | | Details |
| sol | solids | | | | Details |
| SOL | Süd Ost Leitung | | | | Details |
| SOL | Solution | | | | Details |
| SOL:GAS | Solution Gas | | | | Details |
| SOLAS | Safety of Life at Sea | | | | Details |
| SOLAS | International Convention for the Safety of Life at Sea | | | | Details |
| SOLGAS | Solution Gas | | | | Details |
| soln | solution | | | | Details |
| solv | solvent | | | | Details |
| SOMALGAZ | Societe Mixte Algerienne de Gaz Algeria | | | | Details |
| SONACOL | Sociedad Nacional de Oleoductos Ltda. Chile | | | | Details |
| SONANGOL | Sociedade Nacional de Combustiveis Sonangol Angola | | | | Details |
| SONELGAZ | Societe Nationale d’Electricite et du Gaz Algeria | | | | Details |
| SONL | Sonic | | | | Details |
| SONL | sonic log | | | | Details |
| SONL | Minimum Standoff LEFT | | | | Details |
| SONPETROL | Sondeos Petroliferos, S.A. Spain | | | | Details |
| SOTETEL | Société Tunisienne d’Entreprises de Télécommunications | | | | Details |
| SOTRAL | Societe de Transport d’Arzews Algeria | | | | Details |
| SOW_Slip | On Wellhead | | | | Details |
| SOXL | Maximum Standoff LEFT | | | | Details |
| spcl | special | | | | Details |
| SPCT_DL | Spectrometer Transmittance Data (Depth | | | | Details |
| SPDC_DL | Spectrometer Dark Calibration Data (Depth | | | | Details |
| SPDD_SLDT | SLDT Short Spacing PSC DAC Diagnostic | | | | Details |
| spdl | spindle | | | | Details |
| SPEL | Spectralog | | | | Details |
| SPFF_SLDT | SLDT Short Spacing PSC Form Factor | | | | Details |
| sphal | sphalerite | | | | Details |
| SPHASE_SL | Signal Phase - Station Log | | | | Details |
| spkld | speckled | | | | Details |
| spl | sample | | | | Details |
| spl | cham sample chamber | | | | Details |
| SPL | Shell Pakistan ltd. Pakistan | | | | Details |
| SPL | Saudi Petroleum Ltd. Saudi Arabia | | | | Details |
| spl cham | sample chamber | | | | Details |
| spl top | sample top | | | | Details |
| SPLA | Sudan’s People’s Liberation Army | | | | Details |
| spletp | Spindletop | | | | Details |
| SPLSE | Societe du Pipe-Line Sud Europeen France | | | | Details |
| SPLS_SLDT | SLDT Short Spacing PSC Loop Status | | | | Details |
| SPLTR | splitter | | | | Details |
| splty | specialty | | | | Details |
| splty | splintery | | | | Details |
| SPOL | Saudi Petroleum Overseas Ltd. Saudi Arabia | | | | Details |
| SPSC_DL | Spectrometer Source Calibration Data | | | | Details |
| SPSL | Dummy Output Match Spinner Slope Units | | | | Details |
| SPSP_SLDT | SLDT Short Spacing PSC Set Point | | | | Details |
| SPTL | Stage Proppant Total | | | | Details |
| SPULSE | Slim Pulse MWD Directional | | | | Details |
| SPWLA | Society of Petrophysicists and Well Log Analysts | | | | Details |
| SPWLA | Society of Petroleum Well Log Analysts | | | | Details |
| SPWLA | Society of Professional Well Log Analysts | | | | Details |
| SQL | Siesmic Quicklook Log | | | | Details |
| SQL | Structured Query Language | | | | Details |
| SQSW_DL | Sequence Status Word | | | | Details |
| SRL | single random lengths | | | | Details |
| SRPL | Surface Recorded Pressure Log | | | | Details |
| SRSL | Seismic Reference Survey/Neutron | | | | Details |
| SSAT_SLDT | SLDT Short Spacing Acquisition Time | | | | Details |
| SSCP_SLDT | Short Spacing Compensated Pulses | | | | Details |
| SSL | Secure Socket Layer | | | | Details |
| SSL | Sonde Stichleitung | Well connection-pipeline to main pipeline | | | Details |
| SSL1 | Short-Spaced Raw Loop Window 1 Count Rate | | | | Details |
| SSL2 | Short-Spaced Raw Loop Window 2 Count Rate | | | | Details |
| SSL3 | Short-Spaced Raw Loop Window 3 Count Rate | | | | Details |
| SSL4 | Short-Spaced Raw Loop Window 4 Count Rate | | | | Details |
| SSLN | LDS Short-Spaced Low Level Discriminator | | | | Details |
| SSLO | Spherical Slope | | | | Details |
| SSLP | LDS Short-Spaced Low Level Discriminator | | | | Details |
| SSLS | LDS Short-Spaced Board Latch SLM Status | | | | Details |
| SSLT | Slim Array Sonic Logging Tool | | | | Details |
| SSLT | SLIM Sonic Logging Tool | | | | Details |
| SSLT | Status of Sonic Logging Tool | | | | Details |
| SSLV | Sub Sea Lubricator Valve | | | | Details |
| SSLV | LDS Short-Spaced Low Level Discriminator | | | | Details |
| SSPLR | Subsea Pig Launcher/Receiver | | | | Details |
| SSSL | Supplementary Seismic Survey Licence (United Kingdom), a type of onshore licence | | | | Details |
| SSSP_SLDT | SLDT Short Spacing Spectrum | | | | Details |
| SSSP_SLDT_HR | SLDT High Resolution Short Spacing | | | | Details |
| SSTA_DL | Solenoid Status | | | | Details |
| St L | Saint Louis lime | | | | Details |
| ST10_DL | MRSC 10 Set Point | | | | Details |
| ST11_DL | MRSC 11 Set Point | | | | Details |
| ST12_DL | MRSC 12 Set Point | | | | Details |
| ST1_DL | MRSC 1 Set Point | | | | Details |
| ST2_DL | MRSC 2 Set Point | | | | Details |
| ST3_DL | MRSC 3 Set Point | | | | Details |
| ST4_DL | MRSC 4 Set Point | | | | Details |
| ST5_DL | MRSC 5 Set Point | | | | Details |
| ST6_DL | MRSC 6 Set Point | | | | Details |
| ST7_DL | MRSC 7 Set Point | | | | Details |
| ST8_DL | MRSC 8 Set Point | | | | Details |
| ST9_DL | MRSC 9 Set Point | | | | Details |
| STAATSOLIE | Staatsolie Maatschappij Suriname NV (State Oil Co. Suriname NV) Suriname | | | | Details |
| Stal | Stalnacker | | | | Details |
| STATE_ERR_SL | State Error - Station Log | | | | Details |
| STATOIL | Den Norske Stats Oljeselskap AS Norway | | | | Details |
| STDT_SL | TDTP Packed Status | | | | Details |
| Steigleitung | stand pipe on drilling rig, or Tubing in a well | Stand pipe or tubing | | | Details |
| STEL | Short-term exposure limit (see comment) | | | | Details |
| STEL | Short Term Exposure Limit | | | | Details |
| Stel | Steele | | | | Details |
| SteuSchl | Steuerschlüssel | | | | Details |
| STFL | Steel Tube Fly Lead | | | | Details |
| STGL | Stratigraphic Log | | | | Details |
| STL | STL Gamma Ray Log | | | | Details |
| STL | Service The Limit | | | | Details |
| STL | Stock Tank Liquid | | | | Details |
| stl | steel | | | | Details |
| STL | Time Lapse | | | | Details |
| STLV | Shot level (WST) | | | | Details |
| stncl(d)(g) | stencil(ed)(ing) | | | | Details |
| STPLN | S/T Plane | | | | Details |
| STPLR1 | S/T Plane Receiver Array - Lower Dipole | | | | Details |
| STPLR2 | S/T Plane Receiver Array - Upper Dipole | | | | Details |
| STPLR3 | S/T Plane Receiver Array - Stoneley | | | | Details |
| STPLR4 | S/T Plane Receiver Array - Monopole PS | | | | Details |
| STPLREX | ST Plane Receiver Array - Expert Mode | | | | Details |
| STPLT1 | S/T Plane Transmitter Array - Lower Dipole None | | | | Details |
| STPLT2 | S/T Plane Transmitter Array - Upper Dipole None | | | | Details |
| STPLT3 | S/T Plane Transmitter Array - Stoneley | | | | Details |
| STPLT4 | S/T Plane Transmitter Array - Monopole PS | | | | Details |
| STPLTEX | ST Plane Transmitter Array - Expert Mode | | | | Details |
| Straddle | Doppel-Packer Anordnung | | | | Details |
| STRL | Drill String Length | | | | Details |
| STTBl | Stability Time Before Log | | | | Details |
| stylo | stylolitic | | | | Details |
| sub angl | subangular | | | | Details |
| sul | sulfur, sul2hur | | | | Details |
| Sul | dk | | | | Details |
| Sul | trpt | | | | Details |
| sul | sulfur | | | | Details |
| sul | wtr sulfur water | | | | Details |
| SULF | sulfur, sulfuric | | | | Details |
| sulf | sulfated | | | | Details |
| SUML | Summarised Log | | | | Details |
| supl | supply(ied)(ier)(ing) | | | | Details |
| SURVL | Survey Chart Log | | | | Details |
| SVEL | Sonic Velocity | | | | Details |
| SVLN | slickline Safety Valve Landing Nipple | | | | Details |
| SWL | Safe Working Load | | | | Details |
| SWL | Safe Working Load | | | | Details |
| SWLD | seal weld | | | | Details |
| SWLD | Stage Wellhead Slurry Density | | | | Details |
| SYCOPOL | Oil Spill Control Assn. of France France | | | | Details |
| Syl | Sylvan | | | | Details |
| SYLV | Sylvinite Facies | | | | Details |
| SZL | Swaziland Lilangeni | | | | Details |
| T-Bills | Treasury Bills | | | | Details |
| T12R_SL | Computed T1/T2 - Station Log | | | | Details |
| T1LOG | T1 Logarithmic Mean | | | | Details |
| T1LOG_SIG | Standard Deviation of T1 Logarithmic Mean | | | | Details |
| T1LOG_SIG_SL | Standard Deviation of T1 Logarithmic Mean | | | | Details |
| T1LOG_SL | T1 Logarithmic Mean - Station Log | | | | Details |
| T2LIN | T2 Linear | | | | Details |
| T2LIN_SL | T2 Linear - Station Log | | | | Details |
| T2LM | T2 Logarithmic Mean | | | | Details |
| T2LM_MW | T2 Logarithmic Mean - Multi Wait | | | | Details |
| T2LM_MW_SIG | Standard Deviation of T2 Logarithmic Mean | | | | Details |
| T2LM_MW_SL | T2 Logarithmic Mean - Multi Wait - Station Transverse_Relaxation_Time | | | | Details |
| T2LM_SIG | Standard Deviation of T2 Logarithmic Mean | | | | Details |
| T2LM_SIG_SL | Standard Deviation of T2 Logarithmic Mean | | | | Details |
| T2LM_SL | T2 Logarithmic Mean - Station Log | | | | Details |
| Tal | Tallahatta | | | | Details |
| TAL | Deutsche Transalpine Oelleitung GmbH Germany | | | | Details |
| TAL | AUSTRIA Transalpine Olleitungin Oesterreich GmbH Austria | | | | Details |
| TAL | Transalpine Pipeline | | | | Details |
| TALP | Thermal Alpha Factor | | | | Details |
| TAML | Technology Advancement of Multi Lateral | | | | Details |
| TAML | Technical Advancement of Multi-Laterals An industry group that has defined multi-lateral junction levels and terminology | | | | Details |
| TAMOIL | Subsidiary of NOC Libya Libya | | | | Details |
| TANSTAAFL | There Ain't No Such Thing As A Free Lunch | | | | Details |
| TAPLI | Tape Listing | | | | Details |
| Tapline | Trans-Arabian Pipeline or Trans-Arabian Pipe Line Company | | | | Details |
| TAU_SL | TAU (Near) | | | | Details |
| TB/BDL | tube bundle | | | | Details |
| TCAF_SL | Total Counts Analyzed Far | | | | Details |
| TCAL | Through-Tubing (X-Y) Caliper Log | | | | Details |
| TCAN_SL | Total Counts Analyzed Near | | | | Details |
| TCDL | LDS Long-Spaced Total Downhole Countrate | | | | Details |
| TCFD_SL | Total Counts Far Detector | | | | Details |
| TCH_SL | Temperature Calibration High - Station Log None | | | | Details |
| TCL | Tubing conveyed logging run | | | | Details |
| TCL | Tech Center & Laboratory | | | | Details |
| TCL | Temperature Calibration Low | | | | Details |
| TCL_SL | Temperature Calibration Low - Station Log | | | | Details |
| TCND_SL | Total Counts Near Detector | | | | Details |
| TCRL | LDS Long-Spaced Total Countrate | | | | Details |
| TCSW_SLDT | SLDT Tool Composite Status Word | | | | Details |
| TDL | Total Depth (wireline depth) | | | | Details |
| TDL | Temperature Difference | | | | Details |
| TDL | Temperature Difference Log | | | | Details |
| TDL | Total Depth-Logger | | | | Details |
| TDL | To Do List | | | | Details |
| TDL | Three Detector Density | | | | Details |
| TDMP_SL | Thermal Decay Measure Point | | | | Details |
| Technical | Information Service | | | | Details |
| TEL | tubing end locator | | | | Details |
| tel | telephone, telegraph | | | | Details |
| TEL | tetraethyl lead | | | | Details |
| Tel | Cr Telegraph Creek | | | | Details |
| TelCo | Telephone Conference | | | | Details |
| TELE | Telescope | | | | Details |
| TELER | Teledrift Report | | | | Details |
| TEMP_CORR_DL | Temperature for Pressure Correction | | | | Details |
| TEMS_DL | SGP Temperature | | | | Details |
| TFCL | Thermal Far Counts After Limestone | | | | Details |
| TFL | Through Flow Line | | | | Details |
| TFL | through the flow line, a mechanism for well service where the tools are pumped downhole through the flow lines | | | | Details |
| TFLO | Total flow rate of all active pumps | | | | Details |
| TFLR | TTRM Sub Fluid Resistivity | | | | Details |
| TGL | Toll Gate Light | | | | Details |
| TGLC | Tollgate Light Committee | | | | Details |
| TGLR | total gas lift ratio | | | | Details |
| THFL | Thickness flag | | | | Details |
| thin film | Type of epoxy coating for pipeline coating rather than threading or welding | | | | Details |
| THLD | Threshholding | | | | Details |
| THOLD | Threshold | | | | Details |
| thrling | throttling | | | | Details |
| TIFL | tubing integrity fluid level | | | | Details |
| TJ1L | Tubing Joints & Packer Segments Tubing 1 - None | | | | Details |
| TJ2L | Tubing Joints & Packer Segments Tubing 2 - None | | | | Details |
| TJ3L | Tubing Joints & Packer Segments Tubing 3 - None | | | | Details |
| TJ4L | Tubing Joints & Packer Segments Tubing 4 - None | | | | Details |
| TJ5L | Tubing Joints & Packer Segments Tubing 5 - None | | | | Details |
| TKL | TOKELAU | | | | Details |
| TL | Twist Lock | | | | Details |
| TL | Total Loss | | | | Details |
| TL | TOKELAU | | | | Details |
| TL | TIMOR-LESTE/EAST TIMOR | | | | Details |
| TL | Timing Limitation | | | | Details |
| tl | tool(s) | | | | Details |
| TL | Time Log | | | | Details |
| TL | Team Leader | | | | Details |
| TL | Technical Limit | | | | Details |
| TL | Lagerstättentemperatur (Grad C) | Reservoir Temperature | | | Details |
| TL | Tanklager | | | | Details |
| TL | Techlog | | | | Details |
| TL | TAU Low | | | | Details |
| tl jt | tool joint | | | | Details |
| TL TEMP | Temperature Log | | | | Details |
| TL1A | Time Of Low Calibration V/F Channel 1 | | | | Details |
| TL2A | Time Of Low Calibration V/F Channel 2/1 | | | | Details |
| TL3A | Time Of Low Calibration V/F Channel 3 | | | | Details |
| TL4A | Time Of Low Calibration V/F Channel 4 | | | | Details |
| TL5A | Time Of Low Calibration V/F Channel 2/2 | | | | Details |
| TLA | Technical Limit Approach (BP) | | | | Details |
| TLA | Three Letter Acronym | | | | Details |
| TLAB | Time Logger at Bottom | | | | Details |
| TLAG | TIME LAG | | | | Details |
| TLC | Tough Logging Condition (logging tools will be run on pipe) | | | | Details |
| TLC | Tough Logging Conditions | | | | Details |
| TLD | Three-Detector Lithology Density | | | | Details |
| TLD | Technical Limit Drilling | | | | Details |
| TLE | thread large end | | | | Details |
| TLG | telegraph | | | | Details |
| TLH | top of liner hanger | | | | Details |
| TLI | Top of Logging Interval | | | | Details |
| TLI | Top Logged Interval | | | | Details |
| TLO | Tight Light Oil | | | | Details |
| TLOG | Technical Log | | | | Details |
| TLP | tension leg platform | | | | Details |
| TLRF | Technical Limit Recovery Factor | | | | Details |
| TLROP | Tehnical Limit Rate of Penetration | | | | Details |
| TLS | Tanker Loading Site | | | | Details |
| TLS | TIMOR-LESTE/EAST TIMOR | | | | Details |
| TLS | Timing Limitation Stipulation | | | | Details |
| TLSE | Technical Limit Specific Energy | | | | Details |
| TLV | Threshold Limit Value (see comment) | | | | Details |
| TLV | Threshold Limit Value | | | | Details |
| TLV | Measurement of Downhole +5V Bus | | | | Details |
| TLW | Teilweise|| | Partially | Teilweise | Partiellement | Details |
| TLW | Teilweise | Partly | | | Details |
| TMD-L | Thermal Multigate Decay-Lithology | | | | Details |
| TML | tetramethyl lead | | | | Details |
| TML | Thermal | | | | Details |
| TMLA | Average of Total Metal Loss | | | | Details |
| TMLN | Minimum of Total Metal Loss | | | | Details |
| TMLS | Total Metal Loss | | | | Details |
| TMLX | Maximum of Total Metal Loss | | | | Details |
| TMPD_SLDT | SLDT Detector Temperature | | | | Details |
| TMPL | Temperature Survey | | | | Details |
| TMPL | Temperature Survey Log | | | | Details |
| TN1L | Thermal Neutron porosity bank 1, Left | | | | Details |
| TN2L | Thermal Neutron porosity bank 2, Left | | | | Details |
| TNCL | Thermal Near Counts After Limestone | | | | Details |
| TNL | tubing nipple locator | | | | Details |
| TNPL | Thermal Neutron Porosity, Left | | | | Details |
| TNRL | Calibrated Thermal Neutron Ratio, Left | | | | Details |
| TOEFL | Test for English as a Foreign Language | | | | Details |
| TOFL | Total Flowrate | | | | Details |
| TOL | Top Of Liner | | | | Details |
| tol | tolerance | | | | Details |
| tolu | toluene | | | | Details |
| Tongehalt | Clay content | | | | Details |
| TOOL | tool | | | | Details |
| TOOLFC | Toolface | | | | Details |
| TOOL_ERR | Tool Error | | | | Details |
| TOOL_ERR_SL | Tool Error - Station Log | | | | Details |
| TOOL_STATE | Tool State | | | | Details |
| TOOL_STATE_SL | Tool State - Station Log | | | | Details |
| TOOL_VELOCITY | Tool velocity. | | | | Details |
| TOPL | Transmitter Output Peak Level | | | | Details |
| TOPL_SL | Transmitter Output Peak Level - Station | | | | Details |
| TOSL | Time On Slip | | | | Details |
| TOTAL | Total Fina Elf (merger of former CFP, PetroFina, Elf Aquitaine) France | | | | Details |
| TP5V_SLDT | SLDT Tool Power Supply Plus 5 Voltage | | | | Details |
| TPHI_SL | Thermal Decay Porosity | | | | Details |
| TPL | Electromagnetic Propagation Time | | | | Details |
| TPLC | TPL with Environmental Corrections | | | | Details |
| TPLN | Measure of TPL Minus Sqrt(Sigma**2+Tau**2) Electromagnetic_Propagation_Ti ElectromagneticPropagationTime Float32 | | | | Details |
| TPLP | Measure of TPL Plus Sqrt(Sigma**2+Tau**2) | | | | Details |
| TPLT | Theoretical TPL Value | | | | Details |
| TPSI_SLDT | SLDT Power Supply Input Voltage | | | | Details |
| TPSW_SLDT | SLDT Tool Power Supply Status | | | | Details |
| TQLS | Torque loss | | | | Details |
| TR1L | Thermal ratio bank 1, Left | | | | Details |
| TR2L | Thermal ratio bank 2, Left | | | | Details |
| TRACL | Tractor Log | | | | Details |
| transl | translucent | | | | Details |
| TRAPIL | Societe des Transports Petroliers Par Pipeline France | | | | Details |
| TRAT_FIL | RST Near/Far Capture Ratio Filtered | | | | Details |
| TRAT_SL | Thermal Decay Ratio | | | | Details |
| trilo | trilobite | | | | Details |
| TRL | Technology Readiness Level | | | | Details |
| TRL | Tracer Log | | | | Details |
| TRL | Tracerlog | | | | Details |
| TRL | Turkish lira | | | | Details |
| TRL/NEU | Tracer Log-Neutron | | | | Details |
| trmln | tourmaline | | | | Details |
| trnsl | translucent | | | | Details |
| TRVL | travel(ed)(ing) | | | | Details |
| TSCF_SL | Total Selected Counts Far Detector | | | | Details |
| TSCN_SL | Total Selected Counts Near Detector | | | | Details |
| TSE-WLE | thread small end, weld large end | | | | Details |
| TSEL | Trace Selection | | | | Details |
| TSL | Tubing Stability Latch (Completion zone) | | | | Details |
| TSSW_SLDT | SLDT Tool Summary Status Word | | | | Details |
| TSTA_SLDT | SLDT Tool Status | | | | Details |
| TTL | ToTaL | | | | Details |
| TTL | Transistor-Transistor Logic | | | | Details |
| TTL | total time lost | | | | Details |
| TTL1 | Transit Time High Resolution Long Spacing | | | | Details |
| TTL2 | Transit Time High Resolution Long Spacing | | | | Details |
| TTL3 | Transit Time High Resolution Long Spacing | | | | Details |
| TTL4 | Transit Time High Resolution Long Spacing | | | | Details |
| TTSL | Transit Time (Sliding Gate) | | | | Details |
| TUCP_DL | Temperature Used to Compute SGP | | | | Details |
| Tul | Cr Tulip Creek | | | | Details |
| TUNE_WORD_SL | Tune Word Set for Tuning Relay - Station | | | | Details |
| TVDBML | True Vertical Depth Below Mud Line | | | | Details |
| TVDBSL | True Vertical Depth Below Sea Level | | | | Details |
| TVDGL | True Vertical Depth referenced to Ground Level | | | | Details |
| TVDLAT | True Vertical Depth referenced to Lowest Astronominal Tide | | | | Details |
| TVDMSL | True Vertical Depth referenced to Mean Sea Level | | | | Details |
| TVELD | Time and Velocity to Depth | | | | Details |
| TVOL | Transmitter Voltage | | | | Details |
| TWRN_SLDT | SLDT Tool Warning Word | | | | Details |
| TWTTL | Two-Way Travel Time Log | | | | Details |
| U.S.gal | gallon (U.S.) (GeoFrame legacy unit) | | | | Details |
| U.S.gal/ft | GeoFrame legacy unit | | | | Details |
| U/L | upper and lower | | | | Details |
| U15V_DL | Unregulated 15 V Supply | | | | Details |
| Überlauf | overflowing | Over flowing | | | Details |
| UBL | United Bank of Lebanon | | | | Details |
| UCCL | Ultrasonic CCL | | | | Details |
| UCLI | Caliper Average | | | | Details |
| UEL | Upper Explosive Limit (highest level of gas in air which will explode upon ignition. Above UEL, the mixture is too rich to burn - No O2 enough) | | | | Details |
| UELN | United European Levelling Net | | | | Details |
| UFL | Upper Flammability Limit | | | | Details |
| UFLM | USIT Processing Flag (Fluid Properties | | | | Details |
| UGL | universal gear lubricant | | | | Details |
| ÜL | Über Last | Overpull of sreing | | | Details |
| UL | Volumetric Cross-section, Left | | | | Details |
| UL | Umm Lulu | | | | Details |
| ULAP | Umm Lulu Accomodation Platform | | | | Details |
| ULAY | ULSEL Layered Log Resistivity | | | | Details |
| ULBM | Umm Lulu Bypass Mode | | | | Details |
| ULC | Underwriters Laboratory of Canada (see comment) | | | | Details |
| ULCC | Ultra Large Crude Carrier | | | | Details |
| ULCC | Ultra Large Crude Carriers | | | | Details |
| ULCC | ultra-large crude carrier | | | | Details |
| ULCGR | Uncompressed LDC CNL Gamma Ray Log | | | | Details |
| ULCL | Upper Limit of Clay | | | | Details |
| ULDS | LDS Volumetric Photoelectric Factor | | | | Details |
| ULDT | Upper Limit of DT Theoretical | | | | Details |
| ULF | Ultra-low frequency | | | | Details |
| ULGTP | Umm Lulu Gas Treatment Platform | | | | Details |
| ULJ | perforating, Ultrajet | | | | Details |
| ULLD | ULSEL Lump Log Depth Boundaries | | | | Details |
| ULLR | ULSEL Lump Resistivity Log | | | | Details |
| ULNB | ultra low NOX burner (high fraction staged fuel) | | | | Details |
| ULRP | Umm Lulu Riser Platform | | | | Details |
| ULS | Generic Root for ULSEL Sample Input | | | | Details |
| ULSC | Umm Lulu Super Complex | | | | Details |
| ULSD | Ultra-low sulfur diesel | | | | Details |
| ULSE | Ultralong Spacing Electric Log | | | | Details |
| ULSE | Ultra 2.M. Spacing | | | | Details |
| ULSEL | Ultralong Spacing Electric Log | | | | Details |
| ULSP | Umm Lulu Separation Platform | | | | Details |
| ULSQ | ULSEL Square Log Resistivity | | | | Details |
| ULSW | SW Unlimited by Irreducible Water | | | | Details |
| ult | ultimate | | | | Details |
| ULTR | Upper to Lower Transmitter Power Ratio | | | | Details |
| ULUP | Umm Lulu Utility Platform | | | | Details |
| ULUTP | Umm Lulu Utility Platform | | | | Details |
| ULW | Ultra Light Weight (Proppant) | | | | Details |
| umol | micromole | | | | Details |
| UMVL | Upper Motor Voltage Limit | | | | Details |
| UMVL_DL | Upper Motor Voltage Limit | | | | Details |
| UNBAL | unbalanced | | | | Details |
| unconsol | unconsolidated | | | | Details |
| UNLD | unloading | | | | Details |
| UNLDR | unloader | | | | Details |
| UNOCAL | Union Oil of California | | | | Details |
| URL | uniform resource locator | | | | Details |
| USGAL/MIN | gallon per minute | | | | Details |
| USIL | United Safety International Limited | | | | Details |
| USO0_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| USO1_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| USO2_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| USO3_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| USO4_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| USO5_DL | Uncorrected Oil Superficial Velocity | | | | Details |
| USW0_DL | Uncorrected Water Superficial Velocity | | | | Details |
| USW1_DL | Uncorrected Water Superficial Velocity | | | | Details |
| USW2_DL | Uncorrected Water Superficial Velocity | | | | Details |
| USW3_DL | Uncorrected Water Superficial Velocity | | | | Details |
| USW4_DL | Uncorrected Water Superficial Velocity | | | | Details |
| USW5_DL | Uncorrected Water Superficial Velocity | | | | Details |
| UTL | utility | | | | Details |
| UVO0_DL | Uncorrected Velocity Oil Bubble | | | | Details |
| UVO1_DL | Uncorrected Velocity Oil Bubble | | | | Details |
| UVO2_DL | Uncorrected Velocity Oil Bubble | | | | Details |
| UVO3_DL | Uncorrected Velocity Oil Bubble | | | | Details |
| UVO4_DL | Uncorrected Velocity Oil Bubble | | | | Details |
| UVO5_DL | Uncorrected Velocity Oil Bubble | | | | Details |
| UVW0_DL | Uncorrected Velocity Water Bubble | | | | Details |
| UVW1_DL | Uncorrected Velocity Water Bubble | | | | Details |
| UVW2_DL | Uncorrected Velocity Water Bubble | | | | Details |
| UVW3_DL | Uncorrected Velocity Water Bubble | | | | Details |
| UVW4_DL | Uncorrected Velocity Water Bubble | | | | Details |
| UVW5_DL | Uncorrected Velocity Water Bubble | | | | Details |
| UWAL | Uncorrected Weight Percent Aluminum | | | | Details |
| UWFD_TL | Uncorrected Well Fluid Density | | | | Details |
| UWILD | Underwater Inspection in Lieu of Dry Docking | | | | Details |
| v-sli | very slight, slightly | | | | Details |
| v-sli | very slight | | | | Details |
| V/L | vapor-liquid ratio | | | | Details |
| V1L | Voltage 1 Low | | | | Details |
| V2L | Voltage 2 Low | | | | Details |
| V3L | Voltage 3 Low | | | | Details |
| V4L | Voltage 4 Low | | | | Details |
| Val | Valera | | | | Details |
| VALB | Volume Fraction of Albite Relative to | | | | Details |
| VALI | Validation of Directional Outputs | | | | Details |
| Valve | any of several valves | | | | Details |
| Vcl | clay Volume | | | | Details |
| VCL | volume of clay | | | | Details |
| VCL | Volume of Clay | | | | Details |
| VCL | Volume of Clay | | | | Details |
| VCL | Volume of Clay Type Material Relative to | | | | Details |
| VCL1 | Volume of Clay 1 Relative to Total Volume | | | | Details |
| VCL2 | Volume of Clay 2 Relative To Total Volume | | | | Details |
| VCLA | Volume Fraction of Clay Relative to Total | | | | Details |
| VCLAY | Clay_Volume_Fraction | | | | Details |
| VCLC | Volume of Calcite Relative to Total Volume | | | | Details |
| VCLC | Volume of Calcite Relative to Total Volume Calcite_Volume_Fraction | | | | Details |
| VCL_CPX | Volume of Clay | | | | Details |
| VCOAL | Volume of Coal | | | | Details |
| VCOAL | Coal_Volume_Fraction | | | | Details |
| VCOL | Volume of Coal Relative to Total Volume | | | | Details |
| VDCL | Volume of Dry Clay | | | | Details |
| VDENL | Variation Density Log | | | | Details |
| VDL | Variable Density Log | | | | Details |
| VDL | VDL Log (Variable Density Log) | | | | Details |
| VDL | Variable Deck Load (floating rig) | | | | Details |
| VDL | Variable Density Log | | | | Details |
| VDOL | Volume of Dolomite | | | | Details |
| VDOL | Volume of Dolomite relative to total Volume | | | | Details |
| VDOL | Volume of Dolomite Relative to Total | | | | Details |
| VDOLO | Dolomite_Volume_Fraction | | | | Details |
| VDOL_CPX | Volume of Dolomite | | | | Details |
| vel | velocity | | | | Details |
| VEL | Velocity | | | | Details |
| VEL | velocity | | | | Details |
| VELA | Vela International Marine Ltd. Saudi Arabia | | | | Details |
| VELC | Compressional Velocity | | | | Details |
| VELC | Compressional Velocity | | | | Details |
| VELC | Compressional Velocity | | | | Details |
| VELL | Velocity Log | | | | Details |
| VELO | Velocity Model SDF | | | | Details |
| VELP | P Velocity | | | | Details |
| VELS | Velocity | | | | Details |
| VELS | Shear Velocity | | | | Details |
| VELT | Sonic Compressional Velocity Reconstructed Compressional_Velocity | | | | Details |
| Vented plug | See Comment | | | | Details |
| VerArbPl | Verantwortlicher Arbeitsplatz | | | | Details |
| verl | verloren | lost | | | Details |
| VERLI | Verification Listing | | | | Details |
| VFEL | Volume of Feldspar Relative to Total | | | | Details |
| VFID_DL | Volume Fraction Image Display (Depth | | | | Details |
| VGL | Vergleichen|| | Compare | Vergleichen | Comparer | Details |
| VGL | Vergleichen | to compare | | | Details |
| VHAL | Volume Of Halite Relative to Total Volume | | | | Details |
| VHALITE | Halite_Volume_Fraction | | | | Details |
| VILL | Volume of Illite (dry) Relative to Total Volume | | | | Details |
| VILL | Volume of Illite (dry) Relative to Total | | | | Details |
| VITOL | Vitol and global subsidaries Netherlands | | | | Details |
| VL1 | Vertiline 3-1/2 in. (89 mm, 4-1/2 in. (114mm) | | | | Details |
| VL2 | Vertiline 5-1/2 in. (140 mm) | | | | Details |
| VL3 | Vertiline 7 in. (178 mm) | | | | Details |
| VL4 | Vertiline 8-5/8 in. (219 mm) | | | | Details |
| VLA | Vertical Loaded Anchors | | | | Details |
| VLA | Vertical Last Anchor | | | | Details |
| VLAC | very light amber cut | | | | Details |
| VLCC | Very Large Crude Carrier | | | | Details |
| VLCC | Very Large Crude Carriers | | | | Details |
| VLCT | Theoretical Compressional Velocity | | | | Details |
| VLI | Vintage Log Interpretation | | | | Details |
| VLIM | Volume of Limestone | | | | Details |
| VLIM | Limestone_Volume_Fraction | | | | Details |
| VLIM | Volume of Limestone Relative to Total | | | | Details |
| VLP | Vertical Lift Performance | | | | Details |
| VLPC | Vertical Loop Precession Command | | | | Details |
| VLQR | Very Low Quality Reservoir | | | | Details |
| VLR | Vessel Load Ration | | | | Details |
| VLRC | Virtual Learning Reality Center | | | | Details |
| VLRT | Value of Logarithm (Base 10) of Rt | | | | Details |
| VLS | Vertical Lay System | | | | Details |
| VLS | Volume of Limestone | | | | Details |
| VLST | Theoretical (Reconstructed) VELS | | | | Details |
| VLS_CPX | Volume of Limestone | | | | Details |
| VLTCS | Very Low Temperature Carbon Steel | | | | Details |
| VLV | valve | | | | Details |
| VLXT | Log-base10(RXO/RT) | | | | Details |
| VOL | Volume | | | | Details |
| VOL | Value of Information | | | | Details |
| VOL | volume | | | | Details |
| VOL | Voltage Offset Low | | | | Details |
| vol% | volume-percent | | | | Details |
| vol. | eff. volumetric efficiency | | | | Details |
| VOLT | voltage | | | | Details |
| VOLT | RAW AMPLITUDE | | | | Details |
| volts | volt | | | | Details |
| Volts | volt | | | | Details |
| VOLTS | Volume Tracking System | | | | Details |
| VP10_DL | MRSC 10 Valve Position | | | | Details |
| VP11_DL | MRSC 11 Valve Position | | | | Details |
| VP12_DL | MRSC 12 Valve Position | | | | Details |
| VP1_DL | MRSC 1 Valve Position | | | | Details |
| VP2_DL | MRSC 2 Valve Position | | | | Details |
| VP3_DL | MRSC 3 Valve Position | | | | Details |
| VP4_DL | MRSC 4 Valve Position | | | | Details |
| VP5_DL | MRSC 5 Valve Position | | | | Details |
| VP6_DL | MRSC 6 Valve Position | | | | Details |
| VP7_DL | MRSC 7 Valve Position | | | | Details |
| VP8_DL | MRSC 8 Valve Position | | | | Details |
| VP9_DL | MRSC 9 Valve Position | | | | Details |
| VRL | Voltage Reference Low | | | | Details |
| vrtl | vertical | | | | Details |
| VRTL | Z System Pipe/Air Voltage Magnitude Ratio | | | | Details |
| VS10_DL | MRSC 10 Valve Status | | | | Details |
| VS11_DL | MRSC 11 Valve Status | | | | Details |
| VS12_DL | MRSC 12 Valve Status | | | | Details |
| VS1_DL | MRSC 1 Valve Status | | | | Details |
| VS2_DL | MRSC 2 Valve Status | | | | Details |
| VS3_DL | MRSC 3 Valve Status | | | | Details |
| VS4_DL | MRSC 4 Valve Status | | | | Details |
| VS5_DL | MRSC 5 Valve Status | | | | Details |
| VS6_DL | MRSC 6 Valve Status | | | | Details |
| VS7_DL | MRSC 7 Valve Status | | | | Details |
| VS8_DL | MRSC 8 Valve Status | | | | Details |
| VS9_DL | MRSC 9 Valve Status | | | | Details |
| VSAL | Volume of SALT | | | | Details |
| VSHALE | Shale_Volume_Fraction | | | | Details |
| VSIL | Volume of Silt Relative to Total Volume | | | | Details |
| VSILT | volume of silt | | | | Details |
| VSL | VeSseL | | | | Details |
| VSLO | Volume of Shale from Any Input Log | | | | Details |
| VSOL | Volume of wet clay plus mineral one plus | | | | Details |
| VTDLL | Vertical Thickness Dual Laterolog | | | | Details |
| VTL | Versa Trieve packer | Halliburton Production packer | | | Details |
| VTL | Voltage Total Current Low | | | | Details |
| VTLN | Vertiline | | | | Details |
| VWL | Velocity Well Log | | | | Details |
| VXCL | Volume of wet clay (dry clay and bound | | | | Details |
| W'ly | westerly | | | | Details |
| W/CLR | water cooler | | | | Details |
| W/L | Wireline logging | | | | Details |
| W/L | Wireline | | | | Details |
| W/L | Water Load | | | | Details |
| W/sulf O | water with sulfur odor | | | | Details |
| W2L | AW2I/W2FP Low Barycenter | | | | Details |
| W3L | AW3I/W3FP Low Barycenter | | | | Details |
| WAL | Dry Weight Percent Of Aluminum | | | | Details |
| WALKS | Walkaway Seismic Profile | | | | Details |
| WALS | Western Atlas Logging Servises | | | | Details |
| WALT | Theoretical WWAL Log | | | | Details |
| WATER_VOLUME | Water volume produced | | | | Details |
| WATF_DL | Water Fraction (Depth Logging) | | | | Details |
| WCL | Waveform Correlation Length | | | | Details |
| WCL1 | Weight Percent Of Clay 1 | | | | Details |
| WCL2 | Weight Percent Of Clay 2 | | | | Details |
| WCOL | Water Coloration from Optical Fluid | | | | Details |
| WD-MSL | Water Depth below - Mean Sea Level | | | | Details |
| WDL | Work Days Lost | | | | Details |
| WDL | Well Delivery Limit | | | | Details |
| WDL | Well Deliverability Limit | | | | Details |
| WDLR | Work Days Lost Restricted | | | | Details |
| WELDA | Well Data Report | | | | Details |
| Well | Wellington | | | | Details |
| WELLHEAD_TEMP | Wellhead Temperature | | | | Details |
| WELP | Well Log Plot | | | | Details |
| WEQL | Well Equipment Layout | | | | Details |
| WestLB | Westdeutsche Landesbank Girozentrale | | | | Details |
| WFDE_TL | Well Fluid Density | | | | Details |
| WFEL | Weight Percent Of Feldspar | | | | Details |
| WFL | Water Flow Log | | | | Details |
| WFL | Water Flooding | | | | Details |
| WFVF_SL | Water Flow Velocity Measured by Far | | | | Details |
| WFVG2_SL | Water Flow Velocity Measured by TSGT GR | | | | Details |
| WFVG_SL | Water Flow Velocity Measured by ATT-B GR | | | | Details |
| WFVN_SL | Water Flow Velocity Measured by Near | | | | Details |
| WHL | wheel | | | | Details |
| whsle | wholesale | | | | Details |
| Willb | Willberne | | | | Details |
| WITSML | Well Information Transfer Standard Markup Language | | | | Details |
| wkly | weakly | | | | Details |
| WL | Water Level | | | | Details |
| WL | Water Line | | | | Details |
| WL | Wireline | | | | Details |
| WL | Wat er locat ion Survey | | | | Details |
| Wl | washing in | | | | Details |
| Wl | wrought iron | | | | Details |
| WL | water loss | | | | Details |
| WL | well lines | | | | Details |
| WL | west line | | | | Details |
| WL | Wireline | | | | Details |
| WL | Well Location | | | | Details |
| wl | well | | | | Details |
| wlbr | wellbore | | | | Details |
| WLC | Wireline Composite Log | | | | Details |
| WLC | Wireline core | | | | Details |
| WLC | wireline coring | | | | Details |
| wld | welded, welding | | | | Details |
| wld | welded | | | | Details |
| WLD/DET | welding detail(s) | | | | Details |
| wldr | welder | | | | Details |
| WLDS | WellLink Data Services (Baker Hughes online web based data transfer tool) | | | | Details |
| WLEG | Wire Line Entry Guide (Probably this is mule shoe) | | | | Details |
| WLEG | Wireline Entry Guide | | | | Details |
| WLF | WALLIS AND FUTUNA ISLANDS | | | | Details |
| WLGDP | West Libya Gas Development Project | | | | Details |
| WLI | Well Log Interpretation | | | | Details |
| WLKN | Walkaway Gun Position Number | | | | Details |
| WLL | Wireline Logging | | | | Details |
| WLL | With Limited Liability | | | | Details |
| WLL | Window for Lower Loop (60 - 80 keV) | | | | Details |
| WLM | wireline measurement | | | | Details |
| WLMD | wireline measured depth | | | | Details |
| WLMS | Well Log Management System | | | | Details |
| WLR | Water Level Recorder | | | | Details |
| WLR | WireLine Run | | | | Details |
| WLR | Water Liquid Ratio (water cut in an oil well ) | | | | Details |
| WLS | Water Lift Station | | | | Details |
| WLS | Water Location Survey | | | | Details |
| WLS | Wireline Set tool | | | | Details |
| WLSUM | Well Summary | | | | Details |
| WLT | Wireline test | | | | Details |
| WLTD | wireline total depth | | | | Details |
| WLTOHC | WaterLine-TO-HatchCoaming (distance) | | | | Details |
| WLTS | Well Log Tracking System | | | | Details |
| WLTS | Well Log Transaction System | | | | Details |
| WN0L | Window Zero Lower Edge | | | | Details |
| WN1L | Window One Lower Edge | | | | Details |
| WN2L | Window Two Lower Edge | | | | Details |
| WN3L | Window Three Lower Edge | | | | Details |
| WN4L | Window Four Lower Edge | | | | Details |
| Wolfc | Wolfcamp | | | | Details |
| WOPL | waiting on pipe line | | | | Details |
| WOPL | waiting on pipeline | | | | Details |
| WPAL | Wet Weight Percent of Aluminum | | | | Details |
| WPLAN | Well Course Plan | | | | Details |
| WPRE_TL | Well Pressure | | | | Details |
| WQFL | Well Quality Feedback Loop | | | | Details |
| WSCL | Well Site Core Log | | | | Details |
| WSL | Well Site Log | | | | Details |
| WSL | Well Site Leader | | | | Details |
| WSL | NML Waveform Signal Level | | | | Details |
| WSTL | Well Site Test Log | | | | Details |
| WSUL | Dry Weight Percent Of Sulfur | | | | Details |
| WSUM_SL | Window Sums - Station Log | | | | Details |
| WTEP_TL | Well Temperature | | | | Details |
| WTFL | Filtered computed total flow | | | | Details |
| WTLS | Weight loss | | | | Details |
| WTSV_TL | Well Temperature S/V | | | | Details |
| WTVF_TL | Well Temperature VFC | | | | Details |
| WUL | Window for Upper Loop (40 - 60 keV) | | | | Details |
| WWAL | Wet Weight Percent Aluminum | | | | Details |
| WWL | Wire Wrapped Liner | | | | Details |
| W’ly | westerly | | | | Details |
| X-line | extreme line | | | | Details |
| x-LOT | Extended Leak Off Test | | | | Details |
| XDPL | plot X coordinate | | | | Details |
| XGL | GLORIOSO ISLANDS | | | | Details |
| XGOL | Cross Well Source Type | | | | Details |
| XL | or EXL, Exploration Licence (United Kingdom), | | | | Details |
| XL | or EXL, Exploration Licence (United Kingdom), a type of onshore licence issued between the First Onshore Licensing Round (1986) and the Sixth (1992) | | | | Details |
| XL | PALMYRA ATOLL | | | | Details |
| xl | crystal | | | | Details |
| Xlam | cross-laminated | | | | Details |
| xlam | cross laminated | | | | Details |
| Xln | Crystalline (minerals) | | | | Details |
| Xln | crystalline | | | | Details |
| XLOT | Extended Leak Off Test | Same as ELOT | | | Details |
| xLOTS | Extended Leak Off Tests | | | | Details |
| XLPE | Cross-linked Polyethylene | | | | Details |
| XLPE | Cross Linked Polyethylene | | | | Details |
| XLS | Extra Low Swell | | | | Details |
| xls | crystals | | | | Details |
| XNL | XN (nipple) locator | | | | Details |
| XPHLOC | Crossplot Selection for XPHI | | | | Details |
| XPL | PALMYRA ATOLL | | | | Details |
| XPLL | Experimental | | | | Details |
| XPTL | Experimental | | | | Details |
| xtal | crystal | | | | Details |
| XYCL | X-Y Caliper | | | | Details |
| xyln | crystaline or crystal | | | | Details |
| YDPL | plot Y coordinate | | | | Details |
| YEALMA | OMV (YEMEN) Al Mabar Exploration GmbH | | | | Details |
| yel | yellow | | | | Details |
| YIL | yellow indicating lamp | | | | Details |
| yl | Holdup Factor | | | | Details |
| YL | Light Phase Holdup | | | | Details |
| YLI | Liquid Holdup | | | | Details |
| yllw | yellow | | | | Details |
| YLNG | Yemen Liquefied Gas Company | | | | Details |
| YLNGC | Yemen Liquefied Natural Gas Company | | | | Details |
| Z list | OSHA list of hazardous chemicals (29 CFR 1910 Subpart Z, Worker Right-To-Know) | | | | Details |
| Z1CL | AGS Detector 1 Low Level Discriminator | | | | Details |
| Z1LE | AGS Detector 1 High Voltage Loop Error | | | | Details |
| Z2CL | AGS Detector 2 Low Level Discriminator | | | | Details |
| Z2LE | AGS Detector 2 High Voltage Loop Error | | | | Details |
| ZDL | Compensated Z-Densilog | | | | Details |
| ZDL | Compensated Z-DensilogSM | | | | Details |
| ZDL | Compensated Z-Densilog | | | | Details |
| Zil | Zilpha | | | | Details |
| ZLD | Effective Atomic Number Z from LDT | | | | Details |
| ZnCl2 | zinc chloride | | | | Details |
| ZUFL | Zufluß | medium, effluent | | | Details |
| ZVBL | HALS Bridle Lower Electrode Voltage | | | | Details |
| µg/L | micrograms per liter | | | | Details |
| µg/L | micrograms per liter | micrograms per liter | Mikrogramm pro Liter | microgrammes par litre | Details |
