Rv (Vaporized Oil Ratio)

The quantitative measure of volatile oil in gas phase.

$//<![CDATA[ \begin{array}{l}R_v = \frac{V_{Og}^{\LARGE \circ}}{V_{Gg}^{\LARGE \circ}} = \frac{m_{Og}}{ m_{Gg}} \cdot \frac{\rho_G^{\LARGE \circ}}{\rho_O^{\LARGE \circ}}\end{array} //]]>$

where 

$//<![CDATA[ \begin{array}{l}V_{Og}^{\LARGE \circ}= \frac{m_{Og}}{\rho_O^{\LARGE \circ}}\end{array} //]]>$ – STP volume of dead oil component of mass  $//<![CDATA[ \begin{array}{l}m_{Og}\end{array} //]]>$ and STP density $//<![CDATA[ \begin{array}{l}\rho_O^{\LARGE \circ}\end{array} //]]>$

$//<![CDATA[ \begin{array}{l}V_{Gg}^{\LARGE \circ}= \frac{m_{Gg}}{\rho_G^{\LARGE \circ}}\end{array} //]]>$ – STP volume of natural gas component of mass $//<![CDATA[ \begin{array}{l}m_{Gg}\end{array} //]]>$ and STP density $//<![CDATA[ \begin{array}{l}\rho_G^{\LARGE \circ}\end{array} //]]>$

$//<![CDATA[ \begin{array}{l}R_v(p, T)\end{array} //]]>$ is a function of pressure and temperature due to oil-gas exchange