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


LaTeX Math Inline
bodyc_1 = −1.,433 \ , \ c_2 = 5 \ , \ c_3 = 17.2 \ , \ c_4 = -1.18 ,180 \ , \ c_5 = 12.61


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

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body\gamma_g

fracGas specific gravity

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

scf/stbGas Solubility at Bubble point pressure

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

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