...
Units = dimensionless
The concept of relative permeability implies that different phases sweep through the same rock and under the same pressure gradient at different pace even if their viscosities are the same.
It is closely related to Wettability.
The re relative permeability depends on the current rock saturation:
| LaTeX Math Block | ||||
|---|---|---|---|---|
| ||||
k_{r\alpha} = k_{r\alpha}(s = \{s_\alpha\}) |
For 3-phase Oil + Gas + Water fluid model this is going to be:
|
|
|
Mathematical models of relative permeability are called RPM.
...