Characteristics of Fault System and Its Control on Hydrocarbon Accumulation in South of Bohai Sea

Abstract

Abstract: The south of Bohai Sea has complex fault systems for multi-stage structure movement. Based on the distribution and evolution of faults, the relationship between fault and hydrocarbon accumulation in southern Bohai Sea was discussed. The result showed that strike-slip of the early Oligocene controlled the subsidence center in southern Bohai Sea and changed east-west trend extension structure frame of the Eocene. The strike-slip movement from late Oligocene to Quaternary formed the traps of Neocene. To date, oil and gas fields concentrated in the north-east trend structure. In future, east-west trend extension traps of the Eocene should be important exploration targets, which have favorable conditions for hydrocarbon accumulation as near-source and inheritance structure

Key words: south of Bohai Sea, Tanlu strike-slip, fault system, hydrocarbon accumulation

CLC Number:

P618.13

Sun Hefeng, Zhang Lei, Huang Chuanchao, Zhang Xintao and Zeng Xuan. Characteristics of Fault System and Its Control on Hydrocarbon Accumulation in South of Bohai Sea[J]. China Petroleum Exploration, 2012, 17(4): 29-35,6.

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Characteristics of Fault System and Its Control on Hydrocarbon Accumulation in South of Bohai Sea

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