东营凹陷新生代扭张构造样式及控藏规律

doi:10.11743/ogg20170605

Abstract

Abstract: Various methods including stratigraphic slicing and seismic coherence are adopted based on fine interpretation of seismic data to analyze the styles and distribution patterns of transtensional structures and their controls over hydrocarbon accumulation in Dongying Depression.The results show that there are at least 11 transtensional structural belts,including Wang Jiagang,Ba Mianhe,Gaoqing,Qingxi,Haoxian and etc.They can be categorized into three types of compound structures according to the features of fault complexes on map and section and the characteristics of formation deformation there:the broom-half-flower transtensional structure,the en echelon-tree-shaped flower transtensional structure and the juxtaposed-curled flower transtensional structure.The first style is mostly found in the steep slope of the basin,the second one is mainly observed in the slope of the basin and the last style is distributed in the central uplift belt of the depression.The three styles controlled the trap types,and formed their own individual types of oil and gas accumulation.

Key words: transtensional structure, structural style, accumulation pattern, Cenozonic, Dongying Depression

CLC Number:

TE121.2

Zhang Weizhong, Zha Ming, Zhang Yunyin, Chen Cheng, Qu Zhipeng, Zhang Lin, Gao Ping. Cenozoic transtensional structural styles and their controls over hydrocarbon accumulation in Dongying Depression[J]. Oil & Gas Geology, 2017, 38(6): 1052-1058.

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Cenozoic transtensional structural styles and their controls over hydrocarbon accumulation in Dongying Depression

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