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塔里木盆地雅克拉断凸经历了多期变形、改造与叠加,形成了多种构造样式,油气资源丰富。通过解释雅克拉断凸的新三维地震资料,并结合区域地质资料,综合分析了研究区构造变形特征及其与油气成藏的关系。研究区主要发育挤压、伸展、走滑、反转和潜山等构造样式。挤压构造样式可进一步分为背冲和褶皱一冲断构造,主要发育于前中生界,全区均有分布;伸展构造样式以正断层为主,发育于中、新生界,全区均有分布;走滑构造样式在剖面上表现为花状构造,平面上呈雁列式排列,发育于中、新生界,分布于亚南断裂中段;反转构造样式以上正下逆的负反转构造为主,仅东部地区可见;潜山构造样式可分为单斜、断块和基岩潜山,全区均有发育。雅克拉断凸不同类型的构造样式形成了背斜、断块、断层遮挡、潜山和潜山内幕背斜等多种类型圈闭,不整合面、输导层及断裂充当了油气运移通道,为油气远距离侧向和垂向运移提供了条件,由此研究区形成了背斜、断背斜、断层遮挡、潜山和潜山内幕等油气藏类型。
The Yakela fault in the Tarim Basin has undergone many stages of deformation, alteration and superimposition, forming a variety of structural styles with rich oil and gas resources. Through the interpretation of the new three-dimensional seismic data of the Yakela fault and the combination of regional geological data, the tectonic deformation characteristics of the study area and its relation to hydrocarbon accumulation are comprehensively analyzed. In the study area, structural styles such as extrusion, extension, strike-slip, inversion and buried hill are mainly developed. The crustal structural styles can be further divided into thrusting and fold-thrusting structures, mainly developed in the Mesozoic and Mesozoic strata, and are distributed in the whole area. The extensional tectonism is dominated by normal faults and developed in the Mesozoic-Cenozoic and the whole region There are distribution; strike-slip tectonic style in the profile of the flower-shaped structure, the plane was arranged in an echelon, developed in the Mesozoic, Cenozoic, distributed in the middle of the Yaan fault; reverse structural style is negative inversion The structure is dominant and can only be seen in the eastern region. The structural styles of buried hills can be divided into monocline, fault block and bedrock buried hills, and the whole area has development. Different types of tectonic styles of the Yakela fault have formed various types of traps such as anticlines, fault blocks, fault blocks, buried hills and buried hill anticlines, and unconformities, conduction layers and faults act as hydrocarbon migration channels , Providing conditions for lateral and vertical migration of oil and gas over long distances. As a result, oil and gas reservoirs such as anticlines, anclinic faults, fault shelters, buried hills and buried hill intrusions have been formed in the study area.