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Oil
formation volume factor, B
isothermal compressibility, co(p)bbl/stb

LaTeX Math Inline
body--uriencoded--\displaystyle c_o(p)

= \frac%7BX%7D%7Bp \cdot 10%5e5%7D, \quad X

= с_1

+ с_2

\

,

cdot R_

%7Bsb%7D + c_3 \, T + c_4 \, \gamma_g + c_5 \, \gamma_%7BAPI%7D

%7Bsb%7D%5e%7Bc_2%7D \cdot \gamma_g%5e%7Bc_3%7D \cdot \gamma_%7BAPI%7D%5e%7Bc_4%7D \cdot T%5e%7Bc_5%7D \cdot p%5e%7Bc_6%7D


LaTeX Math Inline
body--uriencoded--c_1 =
−1.433
1.705 \cdot 10%5e%7B−7%7D \ , \ c_2 =
5
0.69357 \ , \ c_3 =
17
0.
2
1885 \ , \ c_4 =
-1
0.
18
3272 \ , \ c_5
= 12.61
= 0.6729 \ , \ c_6 = −0.5906


where

LaTeX Math Inline
bodyp

psiaFluid pressure

LaTeX Math Inline
bodyT

°FInitial formation temperature

LaTeX Math Inline
body--uriencoded--\gamma_%7BAPI%7D

APIOil API gravity

LaTeX Math Inline
body\gamma_o

fracOil specific gravity

LaTeX Math Inline
body\gamma_g

fracGas specific gravity

LaTeX Math Inline
body--uriencoded--R_%7Bsb%7D

scf/stbGas Solubility at Bubble point pressure

See Also

...

Petroleum Industry / Upstream / Petroleum Engineering / Subsurface E&P Disciplines / Reservoir Engineering (RE) / PVT correlations / Oil correlations

References

...

Petrosky, G.E., and F. Farshad. "Pressure-Volume-Temperature Correlations for Gulf of Mexico Crude Oils." SPE Res Eval & Eng 1 (1998): 416–420. doi: https://doi.org/10.2118/51395-PA