中国石油勘探 ›› 2012, Vol. 17 ›› Issue (4): 29-35,6.

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渤海南部断裂系统特征及其对油气成藏的控制

孙和风,张蕾,黄传超,张新涛,曾萱   

  1. 中海石油天津分公司渤海油田勘探开发研究院;中海石油(中国)有限公司勘探部;中海石油海油发展监督监理技术公司
  • 出版日期:2012-08-15 发布日期:2012-08-15
  • 基金资助:
    国家科技重大专项“近海大中型油气田形成条件及勘探技术”子课题“渤海海域大中型油气田精细解剖与油气富集模式研究”(2011ZX05023-006-002)

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

Sun Hefeng,Zhang Lei,Huang Chuanchao,Zhang Xintao and Zeng Xuan   

  1. Sun Hefeng1, Zhang Lei1,Huang Chuanchao3, Zhang Xintao1, Zeng Xuan1 1. Bohai Oilfield Exploration and Development Institute, Tianjin Branch of China National Offshore Oil Corporation, Tianjin 300452; 2.Exploration Department of China National Offshore Oil Corporation, Beijing 100010; 3. Supervision and Technology Company of China National Offshore Oil Base Group, Tianjin 300452
  • Online:2012-08-15 Published:2012-08-15

摘要: 渤海南部地区构造活跃,断裂系统复杂。通过系统研究渤南地区断层分布、断裂演化等特征,分析了断裂系统对油气成藏条件的控制作用。研究表明:渐新世走滑活动控制了渤南地区沉降中心迁移,改变了始新世伸展期形成的以东西向为主的构造格局;渐新世以后,右旋走滑作用是新近系圈闭的主要形成机制。渤海南部地区现已发现的油气主要集中在北北东向构造带上,早期伸展形成的东西向凹中构造带具有近源、长期继承性发育的优势成藏条件,应是下一步油气勘探的重点区域。

关键词: 渤海南部, 郯庐走滑断裂, 断裂系统, 油气成藏

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

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