OIL | WATER |
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LaTeX Math Block |
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| k_{row}(s_o) = k_{rowc} \, \bigg[ \frac{ s_o - s_{orw} }{ 1- s_{wi} - s_{orw} } \bigg]^{n_{ow}} |
|
LaTeX Math Block |
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| k_{rwo}(s_w) = k_{rwoc} \, \bigg[
\frac{ s_w - s_{wi} }{ 1- s_{wi} - s_{orw} } \bigg]^{n_{wo}} |
|
| | | current water saturation, |
| residual oil saturation to water displacement, below which oil is immobile | | critical water saturation to oil displacement, below which water is immobile |
| maximum oil relative permeability during water displacement | | maximum water relative permeability during oil displacement |
| oil relative permeability curvature to water displacement | | water relative permeability curvature to oil displacement |
where
is
initial water saturation which maybe equal to critical
or less than critical
like for example in
petroleogenetic rocks.
The model assumes no gas presence in pores.
See also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics
[ Permeability ] [ Absolute permeability ] [ Relative permeability ]