Effect of gas content and actual stresses on coalbed permeability

被引：8
|
作者：
Zakharov, V. N. [1 ]
Malinnikova, O. N. [1 ]
Trofimov, V. A. [1 ]
Filippov, Yu. A. [1 ]
机构：
[1] Russian Acad Sci, Inst Integrated Mineral Dev, Kryukovskii Tupik 4, Moscow 111020, Russia
来源：
JOURNAL OF MINING SCIENCE | 2016年 / 52卷 / 02期
关键词：
coal-rock mass; permeability; methane; seepage; stress;
D O I：
10.1134/S1062739116020345
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
The analytical review covers the key factors that influence permeability of a coalbed under mining-induced alteration of stress state. The authors put forward an analytical relation between coal permeability, stresses and adsorbed gas to define parameters of gas leakage zone parameters and laws of mass transfer. The analytically derived relation is compared with the known model of coal structure and with the experimental results. The proposed model of coalbed permeability allows mechanism of leakage and localization of seepage zones in coal provided that the model parameters are properly selected or found experimentally.
引用
收藏
页码：218 / 225
页数：8
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