Abstract:This article deals with the issues of enhanced oil recovery in terrigenous reservoirs characterized by structural heterogeneity in both the section and along the strike. As a working oil displacing agent, high-pressure gas is used, which is more effective than water-based solutions. The mechanism of the formation of the transition zone in the area of gas mixing with oil is shown and the empirical dependence of the sizes of the transition zone on the length of the linear displacement section and the viscosity r… Show more
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