郯庐断裂对渤海海域东部油气成藏的控制作用  

Dominating action of Tanlu Fault on hydrocarbon accumulation in eastern Bohai Sea area

作　　者：龚再升[1] 蔡东升 张功成[3] 

机构地区：[1]中国海洋石油总公司,北京100027 [2]中海石油(中国)有限公司湛江分公司,广东湛江524057 [3]中海石油(中国)有限公司北京研究中心,北京100027

出　　处：《石油学报》2007年第4期1-10,共10页Acta Petrolei Sinica

基　　金：国家自然科学基金重点项目(No.40238059)"渤海中部新构造运动及深部动力过程对大型油气系统形成的控制"资助

摘　　要：利用渤海连片三维地震资料,对郯庐断裂进行了三维可视化解释,系统地研究了海域新生代以来郯庐断裂在古近纪、新近纪、第四纪的发育、发展以及几何学、运动学、动力学特征,研究了郯庐断裂对渤海油气成藏的影响和控制。结果表明,郯庐断裂是控制渤海海域油气成藏的重要因素,它控制了始新世、渐新世湖相烃源岩的形成,造就了大量的油气圈闭,主导了油气输导系统,而且新构造期沿郯庐断裂带的天然地震活动也可能是导致油气成藏的主要动力。郯庐断裂的晚期活动推进了渤海油气在新近纪晚期成藏,也促成了油气田至今的动平衡成藏。The 3D seismic data of Bohai Sea area were used to make 3D visualization interpretation for Tanlu Fault zone. The systemic studies on the development, and geometry, kinematics and dynamics of Tanlu Fault zone in the Paleogene, Neogene and Quaternary of this area since Cenozoic showed that Tanlu Fault zone is an important factor for controlling the hydrocarbon accumulation in Bohai Sea area. i. e. Tanlu Fault zone controlled the formation of lacustrine source rocks in the Eocene and Oligocene during the Paleogene extension rifting period, formed and reconstructed lots of traps, dominated oil and gas conduction system, and the natural earthquake activities during the Neotectonic period could improve hydrocarbon accumulation in this area. The late activity of Tanlu Fault zone advanced hydrocarbon accumulation in the Late Neogene and also advanced the dynamic balance of oilfields at present.

关 键 词：渤海海域 郯庐断裂 油气成藏 海上油气勘探 新生代 

分 类 号：TE511.2[石油与天然气工程—油气田开发工程]