Experimental studies on the changing characteristics of the gas flow capacity on bituminous coal in CO2-ECBM and N2-ECBM

Compared with the pre-modification technique, such as hydraulic fracturing, the gas injected for enhanced coalbed methane recovery (ECBM) technique offers not only a good economic advantage by enhancing the CH4 recovery, but also provides an environmental benefit with CO2 storage, and the changing characteristics of the flow capacity in coal reservoir critical affect both the CH4 production and CO2 geo-sequestration. In this pursuit, the present...