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2-phase Oil + Water fluid model

Created by Arthur Aslanyan (Nafta College), last modified on Dec 17, 2018

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2-phase fluid model based on three pseudo-components $\begin{array}{l}C = \{ W, O \}\end{array}$ :

$\begin{array}{l}W\end{array}$ – water pseudo-component, which may include minerals (assuming formation water and injection water composition is the same)

$\begin{array}{l}O\end{array}$ – dead oil pseudo-component

$\begin{array}{l}G\end{array}$ – dry gas pseudo-component

existing in two possible phases $\begin{array}{l}\alpha = \{ w, o \}\end{array}$ :

$\begin{array}{l}w\end{array}$ – water phase, consisting of water component only

$\begin{array}{l}o\end{array}$ – oil phase, consisting of dead oil pseudo-component and dissolved natural gas pseudo-component (called solution gas)

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

	$\begin{array}{l}w\end{array}$	$\begin{array}{l}o\end{array}$
$\begin{array}{l}W\end{array}$	x
$\begin{array}{l}O\end{array}$		x
$\begin{array}{l}G\end{array}$		x

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