论文详情
四川二叠系碳酸盐岩裂缝系统成因模式探讨
石油实验地质
1995年 17卷 第4期
阅读：142
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Title
A DISCUSSION ON THE GENETIC MODEL OF CRACK SYSTEM IN THE PERMIAN CARBONATE ROCKS OF SICHUAN PROVINCE
Authors
Fan Shengli
Tong Chongguang
单位
中原石油勘探局勘探开发研究院, 河南濮阳457001
2. 成都理工学院石油系, 610059
Organization
Research Institute of Petroleum Exploration and Development, Zhongyuan Bureau of Petroleum Exploration
2. Chengdu Imstitute of Technology
摘要
本文提出了四川盆地二叠系碳酸盐岩储层裂缝系统的成因模式,即在致富的碳酸盐岩条件下,首先由构造作用发育构造裂缝,构造裂缝被溶蚀、扩大,各种次生孔、同、缝大量形成,并充分勾通起来,形成具有储渗流体能力的裂缝系统.在长期的构造运动和成岩作用反复改造下,裂缝系统不断形成并可能被充填.目前有效的裂缝系统是多旋回构造运动和成岩作用反复进行的最后结果,其分布既有规律性,也存在着非均质性或随机性.
Abstract
The authors proposed a genetic model of crack system of the Permian carbonate reservoirs of the Sichuan basin. The model shows that structural fractures were developed inthe dense carbonate rocks due to tectonic activity, then the fractures were dissolved and enlarged,and various secondary pores,cavities and cracks were formed and connected with each other, generating a crack system with the function of reservoir and permeability for fluid flow. The crack system can continuously be reformed and may be filled during the long tectonic activity and diagenesis. The present valid crack systems are the final result of multicycle tectonic movements and diagenesis. Their distribution is regular and anisotropicor probabilistic.
关键词：
碳酸盐岩致密储层;
构造裂缝;
次生孔洞缝;
裂缝系统;
成因模式;
DOI
https://doi.org/10.11781/sysydz199504343
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