新疆石油地质

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (2): 137-140.

• 油气勘探 • 上一篇    下一篇

正断层形成机理及其对断层泥的控制作用

杨磊1, 綦耀光1, 任旭虎1, 刘新福1, 孙志信2   

  1. 1.中国石油大学机电工程学院,山东东营 257061;
    2.中国石化胜利油田有限责任公司地质科学研究院,山东东营 257000
  • 收稿日期:2010-09-07 发布日期:2020-08-11
  • 作者简介:杨磊（1982-）,男,山东昌乐人,在读博士研究生,构造物理模拟,（Tel）0546-8391271（E-mail）yangsir211@163.com.
  • 基金资助:
    国家科技重大专项（2008ZX05006-002）

Mechanics of Normal Fault Formation and Its Control on Fault Gouge

YANG Lei1, QI Yao-guang1, REN Xu-hu1, LIU Xin-fu1, SUN Zhi-xin2   

  1. 1. College of Machinery and Electronic Engineering, China University of Petroleum, Dongying, Shandong 257061, China;
    2. Research Institute of Geology, Shengli Oilfield Company Ltd., Sinopec, Dongying, Shandong 257000, China
  • Received:2010-09-07 Published:2020-08-11

PDF

621

摘要： 断层泥是影响断层封闭性的主要因素之一。对正断层的形成机理进行了动力学和运动学分析,从时间和空间上探讨了正断层上、下盘的应力分布特征及其断层泥的分布规律。分析认为,断层泥受控于断层的特征规律,属于断层形成发育过程的伴生现象。而正断层的上盘为主动盘,下盘为被动盘,正断层中的断层泥则随正断层的生长表现为剪薄、拉长、涂抹和拖曳的动态发育演化过程,断层泥主要形成在正断层上盘一定宽度的范围内。

关键词: 正断层, 力学分析, 断层泥, 构造物理模拟

Abstract: Fault gouge is one of the main influence factors to the fault sealing. Dynamics and kinematics analyses are conducted on the mechanism of normal fault formation. From the time domain and space domain, the stress distribution of upthrow and downthrow blocks and the fault gouge distribution of normal fault are discussed. The study shows that the fault gauge is controlled by the fault and associated with the fault. The upthrow block is an active block and the downthrow block is a passive block. With the growth of normal fault, the fault gouge in the normal fault occurs in forms of thinning, elongate, smear and dragging as dynamic evolution process, and shapes to a certain width of the upthrow block of the normal fault.

Key words: normal fault, mechanics analysis, fault gouge, tectonophysics modeling

中图分类号: