Stroke per Minute (SPM) Required for Target Annular Velocity
The annular velocity is one of two major variables in the process of cleaning solids ( drill cuttings) from the wellbore.
It is important to monitor annular velocity to ensure that the hole is being properly cleaned of cuttings, cavings and other debris while avoiding erosion of the borehole wall.
Correlations
- Pump SPM Required
Input Parameters
| Name | Input Value - Unit | Converted Value | Validity | Link to Calculation Page | |||
|---|---|---|---|---|---|---|---|
| Annular Velocity | 120 | ft/min | Well Annular Velocity | ||||
| Annular Capacity | 0.1261 | bbl/ft | Well Annular Capacity Between Casing or Hole and Pipes | ||||
| Pump Output | 0.136 | bbl/stroke | Duplex Pump Output Q (bbl/stroke) and q (bpm)- Triplex Pump Output Q (bbl/stroke) and q (bpm) | ||||
| CALCULATE | |||||||
Results | |||||||
| Correlation | Calculated Value | Warnings | Remarks | ||||
| Pump SPM Required | 111.26 | stroke/min | |||||