辽东湾坳陷辽西低凸起潜山构造特征与油气聚集

doi:10.11743/ogg20090416

Abstract

Abstract:

The Liaoxi low salient in Bohai presents clear structural segmentation characteristics and can be divi-ded 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,Cambrian-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.

Key words: buried hill structure, hydrocarbon accumulation, Liaoxi low salient, Liaodong Bay Depression

CLC Number:

TE121.3

Lü Dingyou, Yang Minghui, Zhou Xinhuai, Wei Gang, Liu Le, Li Chunxia, Zheng Xiaofeng. Structural characteristics and hydrocarbon accumulation in the buried hills of the Liaoxi low salient,the Liaodong Bay Depression[J]. Oil & Gas Geology, 2009, 30(4): 490-496.

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

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