地质论评2011，Vol.57Issue(1)：89-100,12.
海拉尔盆地贝尔凹陷断裂系统及其对油气运聚的控制作用
Fault Systems and Its Control on Hydrocarbon Migration and Accumulation in Beier Sag, Hailar Basin
摘要
Abstract
Based on systematic analysis of fault systems and its evolution in the Beier Sag, Hailaer Basin, the control of fault formation and evolution on hydrocarbon migration and accumulation was researched. It is concluded that there were four types faults which were early extensional faults, middle tensional—shear faults, early extensional middle tensional—shear long-term active faults and early extensional middle tensional—shear late inverse long-term active faults, and three fault systems which were early extensional fault systems, middle tensional-shear fault systems and late inverse fault systems.There were three fault active periods in the Beier Sag. The first, from depositional time of the Tongbomiao Formation to end that of the Nantun Formation, formed early extensional fault systems with extensional deformation under NW-SE tension stress fields . The second, when the 2nd and 3rd Member of the Yimin Formation deposited, formed middle tensional-shear fault systems with pure shear deformation under closely EW tension stress fields. Final, from end depositional time of the Yimin Formation to that of the Qingyuangang Formation, formed late inverse fault systems with contraction deformation under closely EW extrusion stress fields. Fault formation and evolution controlled formed period, growing types and distributed directions of traps. Long-term active faults were major transporting hydrocarbon fault types in the Beier Sag. Around source-rock, the basement block traps, tilted block and normal drag block traps with controlled by source faults were favorable areas of hydrocarbon migration and accumulation.关键词
断裂系统/演化/运聚/圈闭/油源断层/贝尔凹陷/海拉尔盆地Key words
fault systems/ evolution/ migration and accumulation/ traps/ source faults/ Beier Sag/Hailaer Basin引用本文复制引用
孙永河,韩钰萍,冯志鹏,付晓飞,刘哲..海拉尔盆地贝尔凹陷断裂系统及其对油气运聚的控制作用[J].地质论评,2011,57(1):89-100,12.基金项目
本文为国家大型油气田及煤层气开发科技重大专项"中国大型气田形成条件、富集规律及目标评价"项目(编号2008ZX05007)下属大型气田成藏机制与分布规律课题(编号2008ZX05007-03)的成果. （编号2008ZX05007）
