松辽盆地南部浅层气藏的圈闭类型及特征  

Trap types and their characteristics in shallow gas reservoir in south of Song-Liao basin

作　　者：胡望水[1] 刘云[1] 程超[1] 朱名昭[2] 左晨晓[2] 

机构地区：[1]长江大学地球科学学院,湖北荆州434023 [2]长江大学石油工程学院

出　　处：《石油地质与工程》2009年第6期21-24,共4页Petroleum Geology and Engineering

基　　金：国家自然基金资助项目(40872099)

摘　　要：在详细分析松辽盆地浅层地质资料和大量高质量地震剖面的基础上,编绘了浅层九个反射层的底界面构造图,发现了背斜、断块、断鼻、断背斜这四种类型的构造圈闭。圈闭的形成与发育受构造运动控制,圈闭的分布与断裂构造带展布有明显的依存关系。研究区内的圈闭主要形成于坳陷—反转时期,其中四方台—明水组是圈闭的主要形成时期,断块圈闭是油气富集的最主要场所。圈闭叠加有利于复式油气聚集带的形成,圈闭保存直接影响油气保存。不同期圈闭有不同的控制油气聚集作用。Four kinds of structural traps,anticline,fault-block,fault-nose and fault-anticline,could be easily seen from bottom structure maps of 9 reflecting layers,based on geologic data and seismic cross section with high quality.As controlled by tectonic movement,fault distribution is closely related with faulted structural zone.The traps in this re-search area were mainly formed in depression-inversion period and fault-block traps provide the most primary places for hydrocarbon accumulation.As superposed traps are fa-vorable to the formation of composite petroleum accumula-tion zones,the traps preservation has direct effect on hydro-carbon preservation.Therefore,traps formed in different stages have different controlling effect on different hydrocar-bon accumulation.

关 键 词：松辽盆地南部 构造圈闭 断裂带 浅层气 

分 类 号：TE112.32[石油与天然气工程—油气勘探]