METHOD TO DEGAS EXISTING WORKING AREAS AND PRODUCTION OF ASSOCIATED METHANE DURING DEVELOPMENT OF COAL AND METHANE DEPOSITS WITH LONGWALL FACES Russian patent published in 2013 - IPC E21F7/00 

FIELD: mining.

SUBSTANCE: method includes drilling from the surface of wells and their connection with vacuum and recycling systems. At the same time drilling of degassing wells is carried out to the mined bed in places of meeting and crossing of the line of the angle of full displacement of the geomechanical layer, where the degassed bed is located, and to the degassed bed, and of methane-producing wells - in places of crossing of lines of angles of full displacement of appropriate geomechanical beds of higher levels of hierarchy at their established sufficient gas content.

EFFECT: increased efficiency of degassing and methane production.

1 dwg