Problems and suggestions on calculation of gas content in measuring method of coal seam permeability coefficient
The method for determining the permeability coefficient of coal seams using the radial flow rate method is specified in the"Measuring method for gas permeability coefficient of coal seam-Radial flow method"(MT/T 1173-2019).However,there is a unit conversion problem when calculating the gas content based on the coal seam gas pressure,resulting in a large deviation between the cal-culated and measured values of the gas content,even greater than the maximum adsorption capacity.In response to this issue,a theoreti-cal analysis was conducted on the mutual conversion between gas pressure and gas content,and suggestions for standard application in engineering were given based on practical engineering situations.
gas permeability coefficient of coal seamgas contentprob-lemssuggestions
万方数据
维普
