Oil density
The physical property density is the ratio between mass and volume.
The density of crude oil can be determined from :
- Specific gravity of the crude oil
- Solution gas gravity
- Solution gas-oil ratio
- Oil formation volume factor (FVF). [1]
Under any condition, density will be defined by
Stated more rigorously with PVT properties, this relationship becomes
This is valid for all pressure and temperature conditions for which the pressure-volume-temperature (PVT) properties are determined. As expressed, this equation provides density with the units of lbm/ft3.
Nomenclature
Bo | = | oil FVF, bbl/STB |
γo | = | oil specific gravity |
γg | = | gas specific gravity, air=1 |
Rs | = | solution GOR, scf/STB |
Vo | = | volume of crude oil, L3 |
Vg | = | volume of gas, L3 |
Wg | = | weight of dissolved gas, m |
Wo | = | weight of crude oil, m |
References
- ↑ Brill, J.P. and Beggs, H.D. 1984. Two-Phase Flow in Pipes, third edition. Tulsa, Oklahoma: University of Tulsa.
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