乌尔逊凹陷反向断层及与油气的关系  

Relationship between antithetic faults and hydrocarbon in Wuerxun depression,Hailaer basin,China

作　　者：应丹琳[1,2] 潘懋[1] 李忠权[3] 陈均亮[3] 

机构地区：[1]北京大学地球与空间科学学院,北京100871 [2]中国石油西南油气田分公司勘探开发研究院,成都610051 [3]油气藏地质及开发工程国家重点实验室(成都理工大学),成都610059

出　　处：《成都理工大学学报（自然科学版）》2012年第3期244-250,共7页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家自然科学基金重点项目(41030426);教育部博士点基金项目(20095122110002)

摘　　要：海拉尔盆地乌尔逊凹陷经历了多期建造和改造。从分析乌尔逊凹陷建造和改造过程中的断裂变形特征入手,通过地震剖面的解释,按断裂活动期次将乌尔逊凹陷反向断层分为:早晚期、早中晚期、早中期、晚期、中晚期、中期6种类型。通过目的层的反向断层平面分布特征和油气勘探成果分析,认为乌尔逊凹陷的反向断层,尤其是早中晚期型反向断层控制了油气运移与聚集;反向断层的上升盘所形成的圈闭最有利于捕获油气,可作为重点勘探目标。The Wuerxun depression has experienced multi-period formations and reconstructions. The article analyses the characteristics of the fault deformation of the Wuerxun depression in the process of formation and reconstruction. Through the interpretation of the seismic profiles, according to the stages of the fault activities, the antithetic fault of the Wuerxun depression is divided into early-late period, early-middle-late period, early-middle period, late period, middle-late period and middle period. The analyses of the plane distribution characteristics of the antithetic fault and the hydrocarbon exploration achievements of the target stratum suggest that the antithetic fault of the Wuerxun depression controls hydrocarbon migration and accumulation and that the trap forming at the upside of the antithetic fault is most favorable for capturing oil and gas and can be used as the key target for exploration at the next step.

关 键 词：反向断层 油气聚集 乌尔逊凹陷 海拉尔盆地 

分 类 号：TE122.321[石油与天然气工程—油气勘探]