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现代地质 ›› 2009, Vol. 23 ›› Issue (5): 860-864.

• 石油构造 • 上一篇    下一篇

伊通盆地西北缘断裂带的性质

 江涛1,2, 邱玉超2, 宋立斌2, 苗洪波2,3, 杨善民4, 张鲲鹏2   

  1. 1中国石油大学 资源与信息学院,北京102249;2吉林油田公司 勘探开发研究院,吉林 松原138000;
    3中国地质大学 资源学院, 湖北 武汉430074;4大庆钻探工程公司 录井二公司,吉林 松原138000
  • 收稿日期:2009-03-20 修回日期:2009-05-04 出版日期:2009-10-20 发布日期:2012-02-16
  • 作者简介:江涛,男,高级工程师,博士研究生,1967年出生,石油地质学专业,主要从事石油地质综合研究及技术管理工作。Email: jljjtt@sina.com。
  • 基金资助:

    中国石油重大科技攻关项目(040112-1)

Fault Nature of NorthWest Fault Zone in Yitong Basin and Its Relation with Reservoir Accumulation

 JIANG  Tao1,2, QIU  Yu-Chao2, SONG  Li-Bin2, MIAO  Hong-Bo2,3, YANG  Shan-Min4, ZHANG  Kun-Peng2   

  1. 1Faculty of Natural Resources and Information Technology,China University of Petroleum, Beijing102249, China;2Research Institute of
    Petroleum Exploration and Development, Jilin Oilfield Company, Songyuan, Jilin138000, China;3Faculty of Earth Resources,China University
     of Geosciences, Wuhan, Hubei430074, China;4No.2 Mud Log Company, Daqing Drilling Company, Songyuan, Jilin138000, China
  • Received:2009-03-20 Revised:2009-05-04 Online:2009-10-20 Published:2012-02-16

摘要:

以往对伊通盆地西北缘的断裂性质问题认识不清,严重制约了该地区的油气勘探工作。综合利用钻井、露头岩心及地球物理资料,确立了伊通盆地西北缘断裂带在古近纪右行走滑伸展之后、新近纪以来为挤压性质,并发育一系列逆断层及相关褶皱等构造。存在挤压作用的主要依据有以下4点:(1)在靠近西北缘边界的探井岩心中,地层大幅度倾斜或近于直立;(2)盆地西北缘露头出现大量挤压形成的褶皱构造;(3)盆地西北缘地震剖面上普遍存在逆冲构造和花状构造特征;(4)重、磁、电资料也表明盆地西北缘存在挤压现象。勘探证实,伊通盆地西北缘断裂带的挤压性质及伴生构造特征有利于油气的运聚和成藏。该认识有力地指导了伊通盆地的油气勘探,同时也对整个郯庐断裂带东北段的油气勘探战略具指导意义。

关键词: 西北缘断裂带, 伊通盆地, 油气成藏

Abstract:

The fault nature of north-west area in Yitong Graben used to be obscure,which heavily impedes the oil prospecting works in this area. By using outcrop, core,geophysical data, it is concluded that north-west fault zone in Yitong Basin is compressive and reversed faults which are well developed. A lot of fold structures are shaped at geological outcrops in north-west area of the basin. In prospecting wells near north-west boundary core data show that strata tilted at a large angle, and some even turn perpendicular. Gravity, magnetic and geo-electrical data also show that north-west area in Yitong Graben exits compressive phenomena. Fault composite characteristics are interpreted from high resolution 3D seismic. Fault nature and its characteristics are favorable for reservoir accumulation in the area. This study greatly guides oil exploration of north-west area in Yitong Graben, and also has a guiding meaning to oil prospecting vista of the entire Tancheng-Lujiang fault zone.

Key words: north-west fault zone, Tancheng-Lujiang fault zone, Yitong Graben, reservoir accumulation

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