There are two types of geomechanical correlations: permeability and compressibility.
Permeability correlations
Yilmaz and Nur: A generic correlation suitable for extremely low permeability reservoirs.
Dobrynin: A more detailed correlation designed for over-pressurized reservoirs that require porosity as an input. Valid in the pressure range of 0 – 20,000 psi.
Custom Table: Allows you to enter laboratory measurements for the permeability ratio.
Compressibility correlations
Dobrynin: A more detailed correlation designed for over-pressurized reservoirs that require porosity as an input. Valid in the pressure range of 0 – 20,000 psi.
Custom Table: Allows you to enter laboratory measurements for formation compressibility. The formation compressibility ratio is calculated using the formation compressibility entered for each pressure divided by the initial formation compressibility coming from the basic reservoir properties.