Specific case of a 3-phase fluid model based on three pseudo-components   $//<![CDATA[ \begin{array}{l}C = \{ W, O, G \}\end{array} //]]>$:

$//<![CDATA[ \begin{array}{l}W\end{array} //]]>$ – Water pseudo-component, which may include minerals  (assuming formation water and injection water composition is the same)

$//<![CDATA[ \begin{array}{l}O\end{array} //]]>$ –  dead Oil pseudo-component 

$//<![CDATA[ \begin{array}{l}G\end{array} //]]>$ – dry Gas pseudo-component

existing in three possible phases  $//<![CDATA[ \begin{array}{l}\alpha = \{ w, o, g \}\end{array} //]]>$:

$//<![CDATA[ \begin{array}{l}w\end{array} //]]>$ – water phase, consisting of Water component only

$//<![CDATA[ \begin{array}{l}o\end{array} //]]>$ –  oil phase, consisting of dead Oil pseudo-component and dissolved dry Gas pseudo-componentt (called Solution Gas)

$//<![CDATA[ \begin{array}{l}g\end{array} //]]>$ – gas phase, consisting of dry Gas pseudo-component and vaporized dead Oil pseudo-component (called volatile oil)

The accountable cross-phase exchanges are illustrated in the table below:

See Also

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Fluid (PVT) Analysis / Fluid (PVT) modelling

[ Volatile Oil (VO) fluid model ]