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Oil isothermal compressibilitycopsi-1p > pb

\displaystyle c_o(p, T) = \frac{A}{p}

A = c_1 + c_2 \, R_{sb} +c_3 \, T + c_4 \, \gamma_g + c_4\, \gamma_{API}

c_1 = -1,433·10^{-5}, \ c_2 = 5·10^{-5}, \ c_3 = 17.2·10^{-5}, \ c_4 = -1,180·10^{-5}, \ c_5 = 12.61·10^{-5}

where

p

psiaFluid pressure

T

°FInitial formation temperature

\gamma_{API}

APIOil API gravity

\gamma_o

fracOil specific gravity

\gamma_g

fracGas specific gravity

R_{sb}

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

[ Vasquez-Beggs (1980) oil correlations ]

References


Vasquez, M., and H.D. Beggs. "Correlations for Fluid Physical Property Prediction." J Pet Technol 32 (1980): 968–970, doi.org/10.2118/6719-PA






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