Research on Inversion Structures of Beier Sag in Hailaer Basin

China Petroleum Exploration ›› 2006, Vol. 11 ›› Issue (5): 26-29,7.

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Research on Inversion Structures of Beier Sag in Hailaer Basin

Wu Yadong,Shen Hua and Zhang Yunmian

Wu Yadong1,Shen Hua2 and Zhang Yunmian1//1 Petro China Research Institute of Petroleum Exploration and Development, Beijing 100083;2 Petro China Huabei Oilfield Company,Renqiu City,Hebei Province 062552

Online:2006-10-15 Published:2006-10-15

Abstract

Abstract: Beier sag is an extensional sag in Early Cretaceous that is early extension and later inversion in Hailaer Basin. Thorough analysis on the formation and evolution of Beier sag is conducted based on the application of seismic and drilling data. It is revealed that inversion structures that developed in the end of Early Cretaceous enriches the extensional structures style and provides structural trap favorable for oil and gas accumulation. The key factors that determine the petroliferous properties of inversion structures of Beier sag are the configuration of time for oil and gas generation, migration and inversion and the controlling function of inversion intensity to oil and gas accumulation.

Key words: Beier sag, inversion structures, configuration, oil and gas migration

Wu Yadong, Shen Hua and Zhang Yunmian. Research on Inversion Structures of Beier Sag in Hailaer Basin[J]. China Petroleum Exploration, 2006, 11(5): 26-29,7.

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Research on Inversion Structures of Beier Sag in Hailaer Basin

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