Study on gas permeability coefficient measurement of coal seam by radial flow method

2nd International Conference on Materials Science, Energy Technology and Environmental Engineering

材料科学;能源学;生态环境科学

Zhang, Shuchuan^1,2

College of Energy and Safety, Anhui University of Science and Technology, Huainan, Anhui

232001, China^1

Key Lab. of Mine Safety and High Efficient Mining Jointly Built by Province and Education Ministry, Anhui University of Science and Technology, Huainan, Anhui

232001, China^2

关键词: Accurate measurement;    Application range;    Coal seams;    Gas flow conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/81/1/012093/pdf
DOI  :  10.1088/1755-1315/81/1/012093

来源: IOP

【 摘 要 】

For the accurate measurement of the coal seam permeability coefficient, the application range of the coal seam permeability coefficient was studied under various gas flow conditions with the guidance of the coal seam gas flow theory. Adopting the radial flow method, the measurement and calculation of the permeability coefficient of the coal seam C13-1in Xinji No.1 Coal Mine shows that the permeability coefficient of the original coal seam C13-1is less than 0.1, and the coal seam is difficult to extract.