渤海湾盆地桩海地区NNE向断层性质及其对油气的影响  

THE FEATURES OF THE NNE TRENDING FAULTS AND ITS IMPLICATION FOR HYDROCARBON IN THE ZHUANGHAI AREA, BOHAIWAN BASIN

作　　者：邹东波[1] 吴时国[2] 刘刚[1] 韩文功[1] 

机构地区：[1]胜利油田有限公司物探研究院,山东东营257003 [2]中国科学院海洋研究所,山东青岛266071

出　　处：《天然气地球科学》2004年第5期503-507,共5页Natural Gas Geoscience

基　　金：国家自然科学基金研究项目(编号:40276022);中国科学院知识创新工程重要方向项目(编号:KZCX3-SW-219)联合资助.

摘　　要：根据对高分辨率三维地震资料和钻井资料的联合解释,研究了渤海湾盆地桩海地区近NNE向断裂及其伴生构造的地质特征。这些断裂在平面上呈雁行状排列,在断层两盘构造变形和地层差异明显并存在伴生的雁列褶皱,在地震剖面可见发育完好的花状构造,因此具有走滑构造特征。NNE向断裂与郯庐断裂基本平行,早期的走滑作用形成于印支期,晚侏罗世到早白垩世的右旋走滑作用导致了沿断裂带深部岩浆的大量侵入和控制了晚中生代盆地巨厚陆源碎屑沉积;晚期走滑作用主要表现为长堤潜山构造中新生代地层中不连续的雁列状断裂构造。Based on the analysis of high-resoulution 3D seismic data and drilling wells, this paper studies the NNE trending fault and associated structures. The NNE trending faults show an echolon arrangement on horizontal. The different tectonic deformation and strata units exist in the both side of the fault zone. The NNE fault has associated folds by the side of the fault zone. The faults are characterized by flower structure on the seismic profiles. Therefore, the faults have strike-slip movement. The NNE trending faults, which parallel to the Tanlu fault, were possible formed during Indo-China movement. It was active as a right strike-slip fault during Late Jurassic and Early Cretaceous. It controlled the Magan ejection and development of Late Mesozoic sedimentary basin. The faults express as normal fault by right strike-slips movement during Censozoic except tectonic inversion.

关 键 词：走滑断层 花状构造 郯庐断裂 渤海湾盆地 

分 类 号：TE121[石油与天然气工程—油气勘探]