Characteristics and potential area optimization of Oil layer A reservoir in T Oilfield

Oil layer A of T oilfield has a low development degree. At present, there are 5 medium and highyield wells in the area, showing good evaluation prospect. In order to understand reserve potential this reservoir forming law characteristics further analyzed by analyzing structure characteristics. The research shows that two types reservoirs: one is structural reservoir, which distributed large trap near Aogula-Halahai fault zone east oilfield. It characterized close oil source, short migration path stable development. "large enriched" reservoir. other type lithologic at sedimentary end western oilfield, distant source. After long-distance secondary migration, it greatly influenced degree physical properties but "small fat" with high saturation. On basis clarifying types, ideas, paper carries out optimization classification, selects three areas: block Y1 Y2 mainly controlled Y3 lithology.