新疆石油地质

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (3): 239-243.

• 油气勘探 • 上一篇    下一篇

塔里木盆地寒武-奥陶系走滑断裂系统特征及其控油作用

邬光辉1,2, 成丽芳3, 刘玉魁2,3, 汪海2,3, 曲泰来1, 高力2   

  1. 1.中国石油勘探开发研究院,北京 100083;
    2.中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒 841000;
    3.中国地质大学地球物理与信息技术学院,北京 100083
  • 收稿日期:2010-10-19 出版日期:2011-06-01 发布日期:2020-08-14
  • 作者简介:邬光辉（1971-）,男,湖北武汉人,高级工程师,石油地质,（Tel）15801050696（E-mail）guanghui_wu@petrochina.com.cn.
  • 基金资助:
    国家重大科技专项（2008ZX05004-04）

Strike-Slip Fault System of the Cambrian-Ordovician and Its Oil-Controlling Effect in Tarim Basin

WU Guang-hui1,CHENG Li-fang3, LIU Yu-kui2,3, WANG Hai2,3, QU Tai-lai1, GAO Li2   

  1. 1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
    2. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
    3. School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China
  • Received:2010-10-19 Online:2011-06-01 Published:2020-08-14

PDF

410

摘要： 用新三维地震资料,对塔里木盆地寒武-奥陶系海相碳酸盐岩中发育的走滑断裂系统进行了研究。研究结果认为,研究系统中主要发育着花状构造、雁列构造、拉分地堑、辫状构造、剪切断裂带等多种构造样式。晚加里东–早海西运动期受阿尔金地区强烈的斜向碰撞挤压作用,在塔中地区形成一系列北东向的左旋走滑断裂;晚海西运动期受控南天山洋的斜向闭合拼贴作用,在塔北隆起轴部发育北东东向的压扭断裂,在塔北隆起南缘发育近南北向右旋走滑断裂;印支–燕山运动期受阿尔金走滑作用,在塔东发育左旋压扭断裂;喜马拉雅运动晚期受西昆仑–帕米尔斜向挤压,在巴楚地区发育压扭–走滑断裂。走滑断裂形成演化具有多期性、断裂发育具有继承性与区段性。走滑断裂对碳酸盐岩储集层具有强烈的改造作用,走滑断裂破坏早期古油藏,是晚期油气运聚的主要通道,走滑断裂带造成油气分布的区段性。

关键词: 塔里木盆地, 走滑断裂, 构造演化, 碳酸盐岩, 油气

Abstract: The analysis of latest 3D seismic data shows that strike-slip fault system occurred in the Cambrian-Ordovician marine carbonate rocks in Tarim basin. The structural styles appeared in flower structure, en echelon structure, pull-apart graben, braided structure, shear fault zone, etc. Multi-stage declinate convergences of the structures formed four evolution stages and distributions of four blocks of strikeslip fault. A series of NE-trending sinistral strike-slip faults developed in the northern slope of Tazhong uplift under the intensive oblique collision by Altym Tagh in the period of late Caledonian to early Hercynian. Controlled by the south Tianshan ocean closure in the late Hercynian, there are NEE-trending compresso-shear faults in the axial part of Tabei uplift and near SN-trending dextral strike-slip faults developed in the southern margin of Tabei uplift. By the Altym Tagh strike-slip fault action in Indosinian-Yanshan movement, the sinistral compresso-shear faults developed in Tadong area (eastern Tarim basin). In late Himalayan, the compresso-shear and strike-slip faults are distributed in Bachu areat under west Kunlun-Pamir oblique squeezing action. It is concluded that the formation and evolution of strikeslip faults are characterized by multiple stages, the faults development by inheritance and segmentation. The strike-slip faults are of great effects on the carbonate reservoirs. The early paleo-reservoirs were destroyed by the strike-slip faults which became the main passageway for late hydrocarbon migration and accumulation. The segmentation of hydrocarbon distribution resulted from the strike-slip faults.

Key words: Tarim basin, strike-slip fault, structural evolution, carbonate rock, hydrocarbon

中图分类号: