压扭走滑作用对深水碳酸盐岩储层的改造——以Sinjar隆起西翼为例

赵中平

doi:10.11781/sysydz201502198

压扭走滑作用对深水碳酸盐岩储层的改造——以Sinjar隆起西翼为例

doi: 10.11781/sysydz201502198

赵中平^1,2

1.
西北大学大陆动力学国家重点实验室, 西安 710069
2. 西北大学地质学系, 西安 710069

基金项目: 国家科技重大专项(2011ZX05023-001-002)资助。

详细信息

作者简介:
赵中平(1975—),男,工程师,博士后,从事油藏描述与能源矿产普查研究。E-mail:lzpzhaoliu@sina.com。

中图分类号: TE122.2
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出版历程
- 收稿日期: 2014-03-14
- 修回日期: 2015-01-28
- 刊出日期: 2015-03-28

Control of compression-shearing and strike-slipping on deep-water carbonate reservoir reconstruction: A case study of the west tip of Sinjar Uplift

Zhao Zhongping^1,2

1.
State Key Laboratory of Continental Dynamics, Northwest University, Xi'an, Shaanxi 710069, China
2. Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China

摘要

摘要: 通过分析阿拉伯板块北缘Sinjar隆起西翼始新统Chilou组—渐新统Jaddala组构造特征和油藏分布的关系,认为深部压扭走滑作用改造了浅层致密的深水碳酸盐岩沉积,使之成为良好的油气储层。这种改造和控制作用主要表现在2个方面:一是压扭走滑作用控制了裂缝异常发育带和裂缝性储层的形成与分布;二是压扭走滑作用产生的同沉积局部斜列褶皱隆起遭受大气淡水与海水混合水的溶蚀作用,从而改善和提高了致密沉积物的储集能力。这一实例表明,致密的深水碳酸盐岩沉积经改造后具有良好的勘探潜力,在油气藏勘探和开发过程中应重视类似局部构造。
- 压扭走滑作用 /
- 裂缝性储层 /
- 孔隙性储层 /
- 深水碳酸盐岩 /
- Sinjar隆起 /
- 阿拉伯板块北缘
Abstract: Through analyzing the relationship between the structural characteristics and oil reservoir distribution of Eocene Jaddala and Oligocene Chilou formations in the western tip of the Sinjar uplift, this paper documents that compression-shearing and strike-slipping transformed the deep-water tight carbonate rocks into favorable reservoirs. The reconstruction was in two aspects: (1) Strike-slip shearing made the tight carbonate rocks into fractured reservoirs; and (2) local uplifts and folds generated by the compression components of a twisting couple during early tectonic inversion stages were elevated near or above the sea level, so that the tight carbonate rocks were leached by a mix of sea water and rain, which generated porous reservoirs. This case showed that the deep-water tight carbonate rocks altered by tectonic activity had exploration potential, and similar local structures provide potential prospects during the exploration and exploitation of oil and gas.
- compression-shearing and strike-slipping /
- fractured reservoir /
- porous reservoir /
- deep-water carbonate reservoir /
- Sinjar Uplift /
- northern margin of Arabia Plate

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