3-phase RPM for low oil saturation water-wet formations.


k_{rw}(s_w, s_o, s_g) = k_{rw}(s_w) 



s_{wn} = \frac{s_w - s_{wi}}{1 - s_{wi} - s_{or}} 



k_{rg}(s_w, s_o, s_g) = k_{rg}(s_g) 



s_{on} = \frac{s_o - s_{or}}{1 - s_{wi} - s_{or}} 



k_{ro}(s_w, s_o, s_g) =  \frac{s_{on}}{k_{row}^*} \frac{k_{row}(s_w)}{1-s_{wn}} \frac{k_{rog}(s_w)}{1-s_{gn}}



s_{gn} = \frac{s_g}{1 - s_{wi} - s_{or}}



where .




See also

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics

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