[case] RelativePermeabilityUdellNonwettingPhase

A simple relative permeability function proposed by Kent S Udell [41].

Definition:

$$k_{\text{rel}}^{\alpha} =\left(S^{\text{eff}}_{\alpha}\right)^{3}$$

where

• $k_{\text{rel}}^{\alpha}$ is relative permeability of phase $\alpha$
• $S^{\text{eff}}_{\alpha}$ is the effective saturation of phase $\alpha$

This class handles the non-wetting (gas) phase portion of this relative permeability property, i,e with $\alpha=g$ for the relative permeability function.

This property must be a medium property, it computes the permeability reduction due to saturation as function of capillary pressure.

Child parameters, attributes and cases

• [tag] min_relative_permeability
• [tag] residual_gas_saturation
• [tag] residual_liquid_saturation

Additional info

No additional info.

Used in the following test data files

Used in no end-to-end test cases.