Total Oil Formation Volume Factor (Bo,t)
The total formation volume factor (Bt) is defined as the ratio of the total volume of the hydrocarbon mixture (i.e., oil and gas, if present), at the prevailing pressure and temperature per unit volume of the stock-tank oil.
Bt is used to describe the pressure-volume relationship of hydrocarbon systems below their bubble-point pressure.
Reference: Reservoir Engineering Handbook, Tarek Ahmed
Correlations
- 1-Standing
- 2-Glaso
- 3-Marhoun
Input Parameters
| Name | Input Value - Unit | Converted Value | Validity | Link to Calculation Page | |||
|---|---|---|---|---|---|---|---|
| Solution Gas/Oil Ratio (Rs) More Details | 444 | SCF/STB | Oil Gas Solubility (Rs) | ||||
| Solution Gas Specific Gravity (ɣg) More Details | 0.6744 | SG | Solution Gas Specific Gravity (ɣg) | ||||
| Temperature | 600 | °R | |||||
| Stock Tank Oil Specific Gravity (ɣo) More Details | 36.35 | deg API | Saturated Oil Density (ρo,s) | ||||
| Pressure Absolute Pressure | 2000 | psi | |||||
| CALCULATE | |||||||
Results | |||||||
| Correlation | Calculated Value | Warnings | Remarks | ||||
| 1-Standing | 1.2018 | bbl/STB | California crude oils and natural gases | ||||
| 2-Glaso | 1.1337 | bbl/STB | North Sea crude oil | ||||
| 3-Marhoun | 1.267 | bbl/STB | Middle Eastern crude oil systems | ||||