根据断陷湖盆边界断裂及伴生次级断层的剖面形态、平面展布和应变机制,将高邮凹陷南部陡坡带的边界断裂结构分为单断式和阶梯式2种。不同断裂结构影响着盆地沉积、充填过程和地貌特征,从而影响了其中储层的发育程度、生储盖组合、圈闭类型及油气成藏规律。研究表明:高邮陡坡带戴南组油藏具有断裂沟通油气、断层控砂沉积、垂向运移为主、上下叠合成藏的成藏模式。 According to the profile and plane distribution and strain mechanism of boundary faults and associated secondary faults in the fault depression lake basin, the boundary fault structures in the southern steep slope of the Gaoyou Sag are divided into two types: single fault and stepped. Different fracture structures influence the sedimentation, filling process and geomorphic features of the basin, thus affecting the reservoir development, reservoir-cap assemblage, trap types and hydrocarbon accumulation laws. The research shows that the reservoirs of Dainan Formation in the steep slope of Gaoyou have the modes of reservoir formation and accumulation by superimposed and superimposed reservoirs with the faults and communication oil and gas, fault sand control and vertical migration.