2-phase fluid model based on three pseudo-components :
| dead oil pseudo-component | |
| dry gas pseudo-component | |
| water pseudo-component, which may include minerals (assuming formation water and injection water composition is the same) |
existing in two possible phases :
| oil phase, consisting of dead oil pseudo-component and dissolved natural gas pseudo-component (called solution gas) | |
| water phase, consisting of water component only |
The model is pertinent to Dead Oil or a Live Oil staying above bubble point.
The volumetric phase-balance equations is:
s_o+s_w=1 |
where
share of total fluid volume | |
share of total fluid volume |
The accountable cross-phase exchanges are illustrated in the table below:
| x | ||
| x | ||
| x |
It's a typical case for undersaturated reservoir.
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Fluid (PVT) Analysis / Fluid (PVT) modelling