The Study of Permeability Revolution in coal reservoir during methane production
Permeability of coal is recognized as the most important parameter for fluid transport through the seams. A new finite element model is applied to quantify the gas flow, the deformation of matrix and the net change of permeability. After plenty of study of the permeability, the revolution of the permeability based on the pore pressure and the sorption-induced strain is built. The sorption which affects the volumetric strain is taken into consideration and the pore pressure is also been studied as a key factor for permeability and other relative parameters.
Permeability Reservoir Coal matrix Desorption Pore pressure Effective stress
Cui Bo Han Haoliang Derek Elsworth
University of Science & Technology Beijing, 100083 PR China Department of Energy and Mineral Engineering, Pennsylvania State University, PA, USA
国际会议
大连
英文
1491-1499
2011-10-19（万方平台首次上网日期，不代表论文的发表时间）