The paper shows that the capillary pressure curves parameters of reservoirs in Western Siberia can be estimated with good accuracy by the formation residual water saturation value, and when quantifying the absolute permeability, the hydraulic tortuosity is taken into account as an inverse power function of effective porosity. It is shown that the proposed absolute permeability model makes it possible to estimate the reservoir permeability with sufficiently high accuracy. Keywords: model; permeability, porosity; hydraulic tortuosity; capillary pressure curves; residual water saturation.

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