Saturated oil formation volume factor | Bo | bbl/stb | p ≤ pb | \displaystyle B_o(p, T) = c_1 + c_2 \cdot \left[ R_s^{c_4}(p, T) \, \gamma_g^{c_5} \, \gamma_o^{c_6} + c_7 \, T^{c_8} \right]^{c_3} c_1 = 1.0113, \ c_2 = 7.2046 \cdot 10^{-5}, \ c_3 = 3.0936, \ c_4 = 0.3738 c_5 = 0.2914, \ c_6 = -0.6265, \ c_7 =0.24626, \ c_8 = 0.5371 |
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where
p | psia | Fluid pressure |
T | °F | Initial formation temperature |
\gamma_{API} | °API | Oil API gravity |
\gamma_o | frac | Oil specific gravity |
\gamma_g | frac | Gas specific gravity |
See Also
Petroleum Industry / Upstream / Petroleum Engineering / Subsurface E&P Disciplines / Reservoir Engineering (RE) / PVT correlations / Oil correlations
[ Petrosky–Farshad (1993) oil correlations ]