Bubble point pressure, pb | psia | \displaystyle \ln p_b = 1.7669 + 1.7447 \, \ln p^*_b - 0.30218 \,\big( p^*_b \big)^2, \displaystyle p^*_b = \left( \frac{R_s}{\gamma_g} \right)^a \, T^b \, \gamma_{API}^c a = 0.816, \, c = -0.989 b = \begin{cases} 0.172 & \mbox{for Black Oil} \\ 0.130 , & \mbox{for Volatile Oil} \end{cases} |
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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
[ Glaso (1980) oil correlations ]