关键词: 渤中坳陷, 断裂构造, 断裂演化, 油气聚集, 烃源岩分布, 油气运移通道

Abstract: The characteristics of development and activity of fault in Bozhong Depression were analyzed.The control of fault on hydrocarbon reservoir was investigated.Four types of fault were developed in Bozhong Depression,including the early extensional faults,middle strike-slip extensional faults,late strike-slip faults and long-term active faults.There were three periods of fault activity in Bozhong Depression.In the Late Eocene period,there formed the extensional faults in NNE,NE and closely EW directions.In the sediment period of Dongying Formation,the right strike-slip extensional faults in NNE direction superposed the left strike-slip extensional faults in NW-NWW direction.During the period from the Late Pliocene to the Quaternary,a right strike-slip movement occurred in the faults of NNE direction under the influence of the strike-slip displacement in Tanlu fault zone.The formation and evolution of fault controlled generation,migration and accumulation of hydrocarbon.The slope zone and central salient with growing long-term active faults are the favorable areas of hydrocarbon migration and accumulation.

Key words: Bozhong Depression, fault structure, fault evolution, hydrocarbon accumulation, distribution of source rocks, oil-gas migration pathway