Saturated oil gas solubility	R_s	scf/stb	p ≤ p_b	$\begin{array}{l}\displaystyle R_s(p, T) = \gamma_g \cdot \big[ (c_1 +c_2\, p) \cdot 10^X \big]^{c_3}, \quad X = c_4 \, \gamma_{API} + c_5 \, T\end{array}$ $\begin{array}{l}c_1 = 1.4 \ , \ c_2 = 1/18.2 \ \ c_3 = 1.2048 \ \ c_4 = 0.0125 \ , \ c_5 = -0.00091\end{array}$

where

Location		California
$\begin{array}{l}p\end{array}$	psia	Fluid pressure
$\begin{array}{l}T\end{array}$	°F	Initial formation temperature
$\begin{array}{l}\gamma_{API}\end{array}$	°API	Oil API gravity
$\begin{array}{l}\gamma_o\end{array}$	frac	Oil specific gravity
$\begin{array}{l}\gamma_g\end{array}$	frac	Gas specific gravity

References

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