辽东湾坳陷辽西低凸起潜山构造特征与油气聚集  

Structural characteristics and hydrocarbon accumulation in the buried hills of the Liaoxi low salient,the Liaodong Bay Depression

作　　者：吕丁友[1,2] 杨明慧[3,4] 周心怀 魏刚 刘乐[5] 李春霞 郑晓凤[7] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中海石油(中国)有限公司天津分公司技术部,天津300452 [3]中国石油大学资源与信息学院,北京102249 [4]中国石油大学油气资源与探测国家重点实验室,北京102249 [5]中国石油天然气集团公司东方地球物理公司研究院,河北涿州072751 [6]陕西延长石油(集团)有限责任公司研究院,陕西西安710069 [7]中国石油天然气股份有限公司冀东油田分公司勘探开发研究院,河北唐山063004

出　　处：《石油与天然气地质》2009年第4期490-496,共7页Oil & Gas Geology

基　　金：中海石油(中国)有限公司项目(SC06TJ-TQL-004)

摘　　要：辽东湾坳陷辽西低凸起具有明确的南、中、北3段构造分段特征,潜山构造样式呈典型的翘倾断块状态,潜山地层结构由太古界变质岩、寒武-奥陶系碳酸盐岩和中生界火山岩构成3层复式结构。辽西低凸起潜山油气聚集主要与两个因素相关:一是古近系是否发育储层,二是辽中凹陷油气资源是否充足。因此,大规模的潜山油气聚集多是在主断槽油气供应充分、且潜山上覆古近系缺乏优质储层的情况下发生的。The Liaoxi low salient in Bohai presents clear structural segmentation characteristics and can be divided into southern, middle, and northern parts. The buried hills there present a typical structural style of tilting fault-block and a three-layer architecture consisting of the Archaean metamorphic rocks, Camhrian-Ordovician carbonates, and Mesozoic volcanic rocks. Hydrocarbon accumulations in the buried hills of Liaoxi low-salient are mainly determined by two factors：development of reservoirs in the Paleogene and abundance of hydrocarbon resources in the Liaozhong sag. Therefore, large-scale hydrocarbon accumulations in buried hills occur mostly in circumstances that hydrocarbon supply from the main fault-troughs is plentiful and high-quality reservoirs are absent in the Paleogene.

关 键 词：潜山构造 油气聚集 辽西低凸起 辽东湾坳陷 

分 类 号：TE121.3[石油与天然气工程—油气勘探]