Drilling a horizontal coalbed methane drainage system from a directional surface borehole /

Bibliographic Details
Main Author:	Oyler, David C.
Corporate Author:	United States. Bureau of Mines
Other Authors:	Diamond, W. P. (William P.)
Format:	Government Document Book
Language:	English
Published:	Pgh. [i.e. Pittsburgh], Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1982.
Series:	Report of investigations (United States. Bureau of Mines) ; 8640.
Subjects:	Mine gases. Methane. Coal mines and mining > Safety measures. Boring.

Evans: US Documents (Annex 5th floor)