Restrictive factors and development suggestions of coalbed methane extraction and utilization

Coalbed methane extraction and utilization is the activity tightly around coal production. The coal industry provides half of the total output of surface coalbed methane. According to the development goal proposed by the Twelfth Five-year Plan,it's difficult for surface coalbed methane extraction to achieve the target while the underground coalbed methane extraction may realize the goal,but its utilization efficiency is low. Analyze the...