新疆石油地质

新疆石油地质 ›› 1994, Vol. 15 ›› Issue (2): 158-162.

• • 上一篇    下一篇

川南下二叠统局部构造断层应力数值模拟与裂缝分布

胡志水, 彭大钧, 戴弹申   

  1. 中国科学院广州地质新技术研究所 广州五山 510640
  • 收稿日期:1993-10-05 出版日期:1994-06-01 发布日期:2021-01-19
  • 作者简介:博士 石油地质勘探

NUMERICAL SIMULATION OF FAULT STRESS AND FRACTURE DISTRIBUTION WITHIN LOWER PERMIAN LOCAL STRUCTURES IN SOUTHERN SICHUAN

Hu Zhishui, Peng Dajun, Dai Danshen   

  1. Kwangchow Institute of New Geologic Techniques, Academia Sinica, Wushan, Guamgzhou 510640
  • Received:1993-10-05 Online:1994-06-01 Published:2021-01-19
  • About author:Doctor, Petroleum Geologic Prospecting

PDF

193

摘要： 基于川南下二叠统致密碳酸盐岩储层的地质特点,从弹性力学角度出发,通过建立下二叠统碳酸盐岩层力学模型,并以永安场等局部构造为例,介绍了有限元法分析断层应力以及与构造裂缝关系的过程,与钻井成果做了比较。研究成果为定量研究致密碳酸盐岩裂缝发育规律和预测气藏提出了一条新思路。

关键词: 致密碳酸盐岩, 断层, 裂缝, 应力分析, 天然气储层

Abstract: This paper describes the process in which fault stress and its relation to tectonic fractures were analysed with fnite element method by establishment of mechanical model of Lower Permian carbonate based on the geologic characteristic of Lower Permian dens carbonate reservoir in othen Sichuan and theory of elastic mechanics, and case studies were made by taking some local structures, such as Yonganchang, as examples. Results were then compared to drilling data, which provide a new iea for quantitative study of fracture growth patterns in dense carbonate rock and prediction of gas reservoirs.

Key words: Dense carbonate rock, Fault, Fracture, Stress analysis, Gas reservoir