库车坳陷克拉2气藏异常高地层压力成因力学分析

张明利; 谭成轩; 汤良杰; 孙炜锋

库车坳陷克拉2气藏异常高地层压力成因力学分析

1.
中国石油化工集团公司石油勘探开发科学研究院, 北京 100083
2.
中国地质科学院地质力学研究所, 北京 100081
3.
石油大学盆地中心, 北京昌平 102249

基金项目:

国家重点基础研究发展规划项目“中国典型叠合盆地油气形成富集与分布预测” G19990433

详细信息

作者简介:
张明利(1963-), 男, 高级工程师, 主要从事石油构造、构造应力场研究.E-mail: tanchengxuan@163.net

中图分类号: P618.13
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出版历程
- 收稿日期: 2003-03-05
- 刊出日期: 2004-01-25

An Analysis on Mechanical Genesis of Overpressure at Kala 2 Gas Pool in Kuqa Down-Warping Region

1.
Institute of Hydrocarbon Exploration and Development, China Petroleum & Chemical Cooperation, Beijing 100083, China
2.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
3.
Basin Center, University of Petroleum, Beijing 102249, China

摘要

摘要: 在已有的众多超压机制中, 构造应力作用是人们普遍认为有效的少数几种增压机制之一.为此, 进行了克拉2气藏剖面三维构造应力场数值模拟.研究结果表明在克拉2储集层构造部位有10MPa左右的应力集中, 克拉2气藏异常高地层压力中约5 0MPa由构造应力作用引起, 剩余部分由其他增压机制引起.该研究对于准确评价气藏的储量、指导气藏开发等有一定的意义.
- 库车坳陷 /
- 克拉2气藏 /
- 异常高地层压力
Abstract: Tectonic stress action is one of the few effective over-pressuring mechanisms in many existing over-pressuring mechanisms. Therefore, a vertical three-dimensional tectonic stress section passing Kala 2 gas pool is simulated. The results show that there is about 10 MPa stress concentration at Kala 2 reservoir structural part, and that there is about 50 MPa that is caused by tectonic stress action in the overpressure of Kala 2 gas pool, and the rest by other over-pressuring mechanisms. This research has significance for reasonably assessing and developing gas pool.
- Kuqa down-warping region /
- Kala 2 gas pool /
- overpressure

HTML全文

图 1 克拉2气藏构造简图

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图 2 三维构造应力场模拟有限元模型

Fig. 2. Finite element model for three-dimensional tectonic stress field simulation

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图 3 平均有效应力等值线(单位: MPa)

Fig. 3. Mean effective stress contour

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表 1 物理力学参数

Table 1. Physical and mechanical parameters

参考文献(11)

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