Statistical relationships between filtration and capacitance properties of reservoirs in Western Siberia based on a generalized model of capillary curves

The paper shows that the generalized mathematical model of capillary curves implicitly contains analytical connections between filtration and capacitive properties of productive layers. The method of determining the absolute permeability presented in this paper is based on the use of a generalized model. It does not require the preliminary construction of a geological model of the residual water saturation of oil and gas reservoirs. The proposed method uses correlations between current and residual water saturation at a fixed capillary pressure. The proposed statistical model makes it possible to significantly increase the reliability and accuracy of the estimation of absolute permeability according to capillarimetry data. Keywords: permeability; residual water saturation; capillary pressure; generalized model; analytical connections.