Degasification of virgin Pittsburgh coalbed through a large borehole

Additional Authors:	Fields, H. H.
Year:	1973
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Interior, Bureau of Mines,
SUDOC:	I 28.23:7800
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	7800
Subjects:	Mine gases
	Coalbed methane drainage--West Virginia
	Mine ventilation
Link:	https://hdl.handle.net/2027/mdp.39015078521583