Research on the formation damage to penglaizhen formation shallow gas reservoirs of Jurassic in West Sichuan Basin

被引：0

作者：

Li, Gao ^{[1
,2
]}

Tang, Hongming ^{[1
]}

Yan, Ronghui ^{[1
]}

Zhao, Jingsong ^{[1
]}

Xu, Chunchun ^{[2
]}

机构：

[1] Southwest Petroleum Institute

[2] Exploration Utility Department, South West Oil and Gas Field Branch, PCL

来源：

Tianranqi Gongye/Natural Gas Industry | 2003年 / 23卷 / 06期

关键词：

Computer simulation - Fracture toughness - Mechanical permeability - Natural gas well completion - Natural gas well drilling - Sandstone - Stress analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Penglaizhen Formation gas reservoirs of Jurassic in West Sichuan Basin belong in the shallow low-perme-ability sandstone ones and their reservoir characteristics and damage mechanisms are of typicalness and representativeness in the congeneric gas reservoirs in China. Their reservoir damage mechanisms and degrees were systematically discussed and evaluated by the authors by use of modern core analysis means and a series of simulating experiments, Through studying it is shown that the principal damage mechanism of Penglaizhen Formation gas reservoirs is water locking damage besides which there are still relatively strong alkaline sensitivity, water sensitivity and fracture stress sensitivity and it is also expressed as the water locking damage of the filtrate of working fluid and its solid intrusion damage in the processes of drilling and completing. Finally, relevant suggestions for protecting reservoir from damage are proposed in the paper.

引用

页码：79 / 81