辽河盆地新生代断裂与油气关系  

RELATIONSHIP BETWEEN THE CENOZOIC FAULTS AND HYDROCARBON IN THE LIAOHE BASIN

作　　者：陈振岩[1] 陈永成[2] 仇劲涛[2] 丁秀春[2] 

机构地区：[1]同济大学海洋地质与地球物理系,上海200092 [2]中国石油辽河油田分公司研究院,辽宁盘锦124010

出　　处：《石油实验地质》2002年第5期407-412,共6页Petroleum Geology & Experiment

摘　　要：辽河盆地是一个以新生代为主要成盆期的裂谷盆地,断裂和断陷活动是新生代构造变形的主导方式。断裂幕式活动,引起沉积空间和湖盆范围周期性扩张与收缩,控制了生储盖及其组合特征。断裂的发育对油气富集有着十分重要的影响,它控制了油气运移和聚集。该文较全面和系统地总结了断裂对油气的影响,认为主干断裂控制油气富集,断裂发育演化对油气资源有重要的影响。次级断裂对油气的侧向封堵及油气的再分配有重要的作用,断层的开启性又导致不同区块油气贫富不一致。断裂控制了特殊储层裂缝发育,对圈闭形成起到了关键的作用。因此,正确认识断裂对勘探具有十分重要的意义。The Liaohe Basin is a rift basin with the main basinforming period in the Cenozoic. Faulting and rifting were the dominant styles for the Cenozoic tectonic deformation. Episodic faulting resulted in the periodic extension and contraction of sedimentary spaces and lakebasin scopes, and controlled source rocks, reservoirs and cap rocks as well as their assemblage characteristics. The development of faults played an important role in the enrichment of hydrocarbon, and controlled the migration and accumulation of hydrocarbon. In this paper, the influence of faults on hydrocarbon was summarized thoroughly and systematically. It was considered that major faults controlled the enrichment of hydrcarbon, and the development and evolution of faults had an important enfluence on hydrocarbon resources. Secondary faults took an important part in the lateral plugging and redistribution of hydrocarbon, and the opening property of faults resulted in poor or rich hydrocarbon in different districts. Faults controlled the development of special reservoir fractures, and played a critical role in the formation of traps. Therefore, correct understanding of faults will have very important significance to hydrocarbon exploration.

关 键 词：辽河盆地 新生代 断裂活动 油气富集 

分 类 号：P618.130.2[天文地球—矿床学] T[天文地球—地质学]