地应力对煤储层渗透性影响的机理研究

基金项目:

国家重点基础研究规划项目(973项目)

中国煤层气成藏机制及经济开发基础研究(2002CB11702)

详细信息

Mechanism research about effect of in-situ stress on coalbed permeability

School of Earth Resources and Information, Petroleum University, Dongying 257061, China

摘要: 利用裂缝储层孔隙结构模型理论和弹性力学原理,从微观角度对地应力影响煤储层渗透性的机理进行了研究,得出了煤储层中地应力与渗透率的相关关系,其结果与从宏观角度统计分析的结果相吻合,进而在一定条件下揭示了地应力对煤储层渗透性影响的机理。
- 地应力 /
- 煤储层 /
- 割理 /
- 渗透率
Abstract: In the light of model about pore structure in crack reservoir and elastic dynamic principle,the study of mechanism about effect of in-situ stress on coalbed permeability,and the relationship between in-situ stress and coalbed permeability is derived. The conclusion of theoretical derivation is accordance with macro-statistic analysis results,and mechanism about effect of in-situs tress on coalbed permeability is discovered.
- in-situ stress /
- coal reservoir /
- cleat /
- permeability