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The Research on Main Controlling Factors of Edge Water Invasion in Heavy Oil Thermal Recovery

The Characteristics of heavy oil reservoir and the influence factors of edge water invasion are researched though the research of summary of geology in the BQ57 area. 12 factors are confirmed with the orthogonal experiment. The research contains 12 factors,among them, geologic factors contain reservoir heterogeneity, effective thickness, Crude oil properties, angle of bedding and Edge water energy[1]; Development factors contain temperature field, Steam injection intensity, Steam injection time, soak time, Steam injection temperature, Steam dryness, production factor, and it calculates the weight of various factors.