Simple PVT

Single-phase or pseudo single-phase PVT model with the following correlations:

Total sandface flowrate:

where  $//<![CDATA[ \begin{array}{l}B\end{array} //]]>$ is fluid formation volume factor and $//<![CDATA[ \begin{array}{l}q_s\end{array} //]]>$ is  surface flowrate.

Fluid Mobility:

where  $//<![CDATA[ \begin{array}{l}k_{air}\end{array} //]]>$ is absolute formation permeability to air,  $//<![CDATA[ \begin{array}{l}\mu\end{array} //]]>$ is dynamic fluid viscosity.

Total compressibility:

where  $//<![CDATA[ \begin{array}{l}c_r\end{array} //]]>$ is formation compressibility and  $//<![CDATA[ \begin{array}{l}c\end{array} //]]>$ is fluid compressibility.