Undersaturated Oil Viscosity(μo,us)
Dynamic or absolute viscosity is defined as resistance to flow exerted by a fluid. It is a measure of the magnitude of internal friction between fluid layers as they move relative to each other.
The behavior of viscosity is similar to that of density. At pressures above the bubble point, the oil viscosity decreases with reduction in pressure due to reduced friction between fluid layers with the reduction in pressure.
Reference: PVT Property Correlations, Ahmed El-banbi, 2018
Correlations
- 1-Hanafy et al
- 2-Beal
- 3-Vasquez and Beggs
- 4-Khan
- 5-De Ghetto et al
Input Parameters
| Name | Input Value - Unit | Converted Value | Validity | Link to Calculation Page | |||
|---|---|---|---|---|---|---|---|
| Oil Density Density of oil at pressure above bubble point pressure More Details | 0.75287 | g/cm³ - g/cc | Saturated Oil Density (ρo,s) | ||||
| Pressure | 3060 | psi | |||||
| Bubble Point Pressure (Pb) Saturation pressure at reservoir temperature More Details | 3045 | psi | Bubble Point Pressure (Pb) | ||||
| Saturated Oil Viscosity (μo,s) | 1.5 | centipoise | Saturated Oil Viscosity(μo,s) | ||||
| Dead Oil Viscosity (μo,d) | 1.009 | centipoise | Dead Oil Viscosity(μo,d) | ||||
| Stock Tank Oil Specific Gravity (ɣo) More Details | 44.2 | deg API | Saturated Oil Density (ρo,s) | ||||
| CALCULATE | |||||||
Results | |||||||
| Correlation | Calculated Value | Warnings | Remarks | ||||
| 1-Hanafy et al | 1.019 | cp | Developed for Egyptian oils gathered from the Gulf of Suez, Western Desert, and Sinai regions. | ||||
| 2-Beal | 1.501 | cp | Generally applicable for all oil types | ||||
| 3-Vasquez and Beggs | 1.502 | cp | |||||
| 4-Khan | 1.502 | cp | Saudi Arabian crude oils | ||||
| 5-De Ghetto et al | 0 | cp | Mediterranean Basin, Africa, and the Persian Gulf | ||||