辽河西部凹陷陈家反转断层构造特征与油气的关系

陈家断层位于渤海湾盆地辽河盆地西部凹陷中部，是西部凹陷的控制断层台安一大洼断裂的一条分支断层。由于地表、地下构造变形的复杂性及可靠的地震反射资料相对较少，无法判断其深部勘探潜力。在分析区域地质背景基础上，结合高分辨率三维地震及测井、钻井等资料，从地震剖面、生长地层等该断层的几何特征进行剖析，运用平衡剖面技术方法验证了该断层的运动学特征。研究结果表明陈家断层为两期叠加的反转构造，经历了E2s3下-E2s3中期挤压，E2s3中-E2s1＋2期拉张，E2s1＋2～N1g期挤压的过程，产生的断层封堵使得下盘成为有利的油气勘探区。

The Chenjia Inverted Fault in the Western Liaohe Depression and Its Relations with Hydrocarbon

The Chenjia fault is located in the middle part of the western Liaohe depression in Bohaiwan basin. It is a branch of the Taian-Dawa fault which is a major fault of western depression. In the thesis, the Chenjia fault is considered to be a two-step inverted fault based on the analysis of regional geological surveying in combination with the high resolution three-dimensional seismic data, well data, seismic profile and so on. The Chengjia fault experienced the compression in E2s3L- E2s3M , the extension in E2sTM - E2sTM , and compression in E2STM - N1g. It is beneficial to the generation, migration, and accumulation ofoil and gas.