【摘要】 利用油藏解剖和地震解释成果,对贝尔凹陷断裂发育及活动特征、断裂在油运移和聚集中的作用进行了研究,认为贝尔凹陷共发育有早期伸展、中期走滑和晚期反转3套断裂系统,主要在南二段,伊二、三段和青元岗组沉积时期活动,晚期反转断裂是南屯组源岩和不同储层圈闭的源断裂。不同类型源断裂对不同地区和层位油运移和聚集所起的作用不同,T5—T1源断裂是贝西次凹南屯组源岩生成油向苏德尔特和霍多莫尔地区基岩潜山侧向运移的输导通道,过T23—T1源断裂是贝西次凹南屯组源岩生成油向霍多莫尔及周边地区大磨拐河组二段垂向运移的输导通道。T5—T1源断裂控制着苏德尔特地区基岩潜山裂缝圈闭的形成,反向过T23—T1源断裂控制着贝西斜坡南屯组断层圈闭的形成,边界过T23—T1源断裂控制着霍多莫尔地区南屯组断层圈闭的形成。更多还原

【Abstract】 Through the use of oil reservoir research and seismic interpretation results,the development and activity characteristics of faults and the effect of faults on oil migration and accumulation were studied in Beier Depression.It was considered that three sets of fault systems had developed,which were early extended fault system,middle strike-slip fault system and later reversed fault system.Sedimentary period of K1n2,K1y2+3 and K2q are main active periods of faults.Later reversed faults are source faults connecting Nantun Formaion source rock and traps in different reservoirs.Different types of source faults play the different roles during oil migration and accumulation in different regions and strata.Source faults from T5 to T1 are the transporting pathways that the oil,generated from Nantun Formation source rocks in Beixi subsag,laterally migrates into the buried hill bedrock in Sudeerte and Huoduomoer Regions.Source faults from T23 to T1 are the transporting pathways that oil,generated from Nantun Formation source rocks in Beixi subsag,vertically migrates into the reservoirs of K1d2 in Huoduomoer and the around regions.Source faults from T5 to T1 controlled the formation of fracture traps of buried hill bedrock in Sudeerte Region.Reverse boundary source faults from T23 to T1 controlled the formation of fault traps of Nantun Formaion in Beixi slope.Source faults from T23 to T1 controlled the formation of fault traps of Nantun formation in Huoduomoer Region.更多还原