油气地质与采收率2017，Vol.24Issue(3)：18-24,7.
饶阳凹陷肃宁地区新生代断裂活动及其对油气成藏的控制作用
Cenozoic fault activity and its control on hydrocarbon accumulation in Suning area of Raoyang sag, Bohai Bay Basin
摘要
Abstract
Fault activities has a profound influence on the formation and evolution of rift basin and hydrocarbon migration and accumulation.Cenozoic fault activity in Suning area of Raoyang sag,Bohai Bay Basin was analyzed using 3D seismic data and well drilling and logging data,and its control on hydrocarbon migration and accumulation was discussed.The results show that Cenozoic fault activities in Suning area are obviously periodic and can be subdivided into several stages.Paleogene fault activities happened at E1k-E2s4,E2s3-E2s2 and E2s1-E3d three periods,the strength of which were from weak to strong generally,and the two most intense fault activities happened at E2s3-E2s2 and E2s1-Esd periods in the study area.Since Neogene,the faults in Suning area moved weakly only at the early stage of N2m.Furthermore,the results show that Cenozoic fault activities in Suning area control hydrocarbon migration and accumulation.It is indicated by the facts that two sets of high-quality hydrocarbon source rocks deposited at the periods of the two most intense Paleogene fault activities and their strong extension effects control the formation of hydrocarbon-rich sags,and the evolution of fault system controls the development and formation of buried-hill traps,and furthermore,affects the evolution of sedimentary facies and distribution of sand bodies.As a result,two hydrocarbon reservoiring modes were proposed.In one mode,the hydrocarbon was generated at Cenozoic and migrated laterally along faults and unconformity,and finally accumulated at Paleogene.In the other mode,the hydrocarbon was generated and accumulated both at Cenozoic with multi sources and multi-phase charging.关键词
断裂活动/油气成藏/新生代/饶阳凹陷/渤海湾盆地Key words
fault activity/hydrocarbon accumulation/Cenozoic/Raoyang sag/Bohai Bay Basin分类
能源科技引用本文复制引用
邓爱居,张少华,李凤群,雷志斌,黄志佳,李其瑞,李运娥..饶阳凹陷肃宁地区新生代断裂活动及其对油气成藏的控制作用[J].油气地质与采收率,2017,24(3):18-24,7.基金项目
国家科技重大专项“近海富烃凹陷资源潜力再评价和新区、新领域勘探方向”(2011ZX05023-001). （2011ZX05023-001）
