OIL | WATER | ||||
---|---|---|---|---|---|
|
| ||||
current oil saturation, | current water saturation | ||||
initial water saturation | |||||
residual oil saturation to water displacement, below which oil is immobile | critical water saturation to oil displacement, below which water is immobile | ||||
oil relative permeability curvature to water displacement | water relative permeability curvature to oil displacement |
Initial water saturation maybe equal to critical or less than critical like for example for some petroleogenetic rocks
Fig. 1. Typical Oil-Water relative permeabilities |
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics
[ Permeability ] [ Absolute permeability ] [ Relative permeability ]