Analysis and Application of Capillary Pressure Data

Abstract

Abstract The article proposes a method for determining the water saturation of oil and gas reservoirs based on the use of typical capillary pressure curves. There is a relationship between capillary pressure and water saturation, which consists in the fact that residual water is retained in the pore, hydrocarbon-saturated space of the reservoir due to capillary forces. Based on the results of a laboratory study of 75 core samples, typical capillary pressure curves were constructed. Using these curves, it is possible to determine such reservoir parameters as: residual water saturation, water saturation at a given distance from the OWC and others. Knowledge of these parameters will improve the control and regulation of the development of oil and gas fields.