Click to see subtopics:Capillary pressure correlations
Analytical: Developed based on theory and generally applicable for calculating capillary pressures.
where: a0 = Coefficient 0, a1 = Coefficient 1, ...
Brooks-Corey: An empirical approach to calculate capillary pressures and works satisfactorily in many cases. It requires residual wetting-phase saturation. Uses a lithology factor that allows the correlations to be generalized to any lithology.
Custom Table: Allows you to enter laboratory measurements for capillary pressure values.
Analytical
Water-oil system
where:
Coeff0 = capillary pressure coefficient 0
Coeff1 = capillary pressure coefficient 1
Coeff2 = capillary pressure coefficient 2
Coeff3 = capillary pressure coefficient 3
Gas-oil system
where:
Coeff0 = capillary pressure coefficient 0
Coeff1 = capillary pressure coefficient 1
Coeff2 = capillary pressure coefficient 2
Coeff3 = capillary pressure coefficient 3
Brooks Corey
The Brooks Corey model is widely accepted to calculate capillary pressure for relative permeability calculations. This model is a modified representation of Corey's model and represents the capillary pressure in a more general form.
Water-oil system
where:
Gas-oil system
where: