西部凹陷基底结构及油气成藏特征  

Base structure and hydrocarbon accumulation characteristics in Western Depression of Liaohe Rift Basin

作　　者：刘敬[1] 刘宝鸿[1] 钱宝娟[1] 张海栋[1] 陈昌[1] 

机构地区：[1]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2009年第1期45-48,共4页Special Oil & Gas Reservoirs

摘　　要：针对西部凹陷基底各构造层的地质结构特点,深化基底各构造层特征研究,深入探讨基岩油气藏成藏特征及分布规律,创新地质认识,取得了良好的勘探效果。通过研究,建立了变质岩、碳酸盐岩内幕成藏模式以及基底多层结构成藏模式,有效地指导了勘探实践。陈古2、兴古9等14口预探井和风险探井——赵古1井的成功钻探,有望在该区带形成亿吨级储量规模。This paper studies the geological structure of the basement in Western Depression, discusses hydrocarbon accumulation and distribution pattern in basement reservoirs, and presents new geological understandings. The models of hydrocarbon accumulation in metamorphic rock and carbonate rock as well as in basement multi-layer structure are established and have effectively guided exploration practice. The successful drilling of 14 exploratory wells such as Chen’gu 2 and Xinggu 9 and the risk exploratory well Zhaogu 1 had given a hopeful reserve expectation of hundreds of million tons in this area.

关 键 词：基底结构 基岩油气藏 内幕成藏 多层结构成藏 辽河油区 西部凹陷 

分 类 号：TE122.3[石油与天然气工程—油气勘探]