$//<![CDATA[ \begin{array}{l}\displaystyle \lg(p_b) = 1.7669 + 1.7447 \, \lg(p^*_b) - 0.30218 \, [\lg(p^*_b) ]^2\end{array} //]]>$, $//<![CDATA[ \begin{array}{l}\displaystyle p^*_b = \left( R_s/\gamma_g \right)^a \, T^b \, \gamma_{API}^c\end{array} //]]>$

$//<![CDATA[ \begin{array}{l}a = 0.816 \ , \ c = -0.989\end{array} //]]>$

$//<![CDATA[ \begin{array}{l}b = \begin{cases} 0.172, & \mbox{for Black Oil} \\ 0.130, & \mbox{for Volatile Oil} \end{cases}\end{array} //]]>$

$//<![CDATA[ \begin{array}{l}\displaystyle R_s(p, T) = \gamma_g \cdot \big[ \gamma_{API}^{0.989} \, p^*_b \, T^{-0.172} \big]^{1.2255}, \quad p^*_b = 10^X, \quad X = 2.8869 - (14.1811 - 3.3093 \, \ln p)^{0.5}\end{array} //]]>$

$//<![CDATA[ \begin{array}{l}\displaystyle B_o(p, T) = 1.0 + 10^A, \quad A = -6.58511 + 2.91329 \, \ln B^*_{ob} - 0.27683 \, \left( \ln B^*_{ob} \right)^2\end{array} //]]>$

$//<![CDATA[ \begin{array}{l}B^*_{ob} = R_s \, \left( \frac{\gamma_g}{\gamma_o} \right)^{0.526} + 0.968 \, T\end{array} //]]>$