以地震资料为基础,对埕南断裂带沙河街组圈闭进行油气勘探目标综合评价,得出沙河街组最有利的生油层位是沙三段,以油泥岩、油页岩为主的生油岩中有机质类型较好,其上部的暗色泥岩厚度较大,为好的盖层,泥岩和油泥岩组成的致密层实现了断层好的封堵性。 Based on the seismic data, a comprehensive evaluation of hydrocarbon traps in the Shahejie Formation of the Taonan fault zone in the Taonan fault zone shows that the most favorable oil reservoir in the Shahejie Formation is the third member of the Shahejie Formation, with oil shale and oil shale dominated The type of organic matter in the oilstone is better, and the dark mudstone in the upper part is thick, which is a good cap layer. The dense layer composed of mudstone and oil mudstone has good fault sealing property.