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现代地质 ›› 2004, Vol. 18 ›› Issue (4): 505-510.

• 构造地质 • 上一篇    下一篇

伊通地堑断层系统与构造样式

孙万军1,2,刘宝柱1,2,李本才1,2,宋立中2   

  1. 1. 中国地质大学 能源学院,北京  100083;
    2. 吉林油田 勘探开发研究院,吉林松原  138001
  • 收稿日期:2004-05-17 修回日期:2004-08-11 出版日期:2004-04-20 发布日期:2004-04-20
  • 作者简介:孙万军,男,高级工程师,博士研究生,163年出生,石油地质学专业,主要从事油气地质与勘探的研究和科研管 理工作。

FAULT SYSTEM AND TECTONIC STYLE OF THE YITONG GRABEN

SUN Wan-jun1,2, LIU Bao-zhu1,2, LI Ben-cai1,2, SONG Li-zhong2
  

  1. 1. China University of Geosciences, Beijing   100083, China
    2. Jilin Oilfield, Songyuan, Jilin  138001, China
  • Received:2004-05-17 Revised:2004-08-11 Online:2004-04-20 Published:2004-04-20

摘要:

与走滑相关的盆地构造一般比较复杂,主要表现为断层系统较复杂和构造样式类型丰富。通过对三维地震资料进行系统的构造解析,结合区域地质和钻井资料的分析表明,伊通地堑的断层系统在平面上主要由近东西向的张性正断层和北东走向的张剪性断层组成,反映盆地具右旋走滑的应力体制;断层在演化序列上分为4个类型,与盆地的形成和演化之间存在良好的对应关系。地堑构造样式以“基底卷入型”为主,从盆地的动力学机制的角度,它属于“走滑—拉分型”,进一步可将它概括为5种类型的构造样式,而且每一个断陷都以一种构造样式占主体,其展布具有明显的规律性。构造样式的差异是造成不同断陷具有独特油
气分布规律的主导因素。

关键词: 断层, 断陷, 构造样式, 伊通地堑

Abstract:

Strike-slip basins are commonly complex, mainly because of its complicated fault system and tectonic style. Based on systematic structural interpretation with 3D seismic data and analysis on regional geology and drilling data, the fault system and tectonic style of the Yitong Graben are studied. It is shown that the fault system of the Yitong Graben mainly composed of EW strike extensional normal faults and NE strike wrench faults, and reflects a right lateral strike-slip stress field. There are four evolution types of faults, and well matched with the basin formation and evolution. The main tectonic style of the graben is the “basement involved”, and is strike-slip and pull-apart origins, and can be subdivided into 5 types. There is only one dominant tectonic type in each fault depression. The difference of the tectonic styles is the main reason which causes each fault depression to have its own oil distribution law.

Key words: fault, fault depression, tectonic style, the Yitong Graben

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