Rotary drilling techniques used in the Beckley coalbed

Author: Goodman, Tobias W.
Year: 1989
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:9238
Series: Report of investigations / United States. Bureau of Mines ;
Report Number: 9238
Subject: Coalbed methane drainage--West Virginia--Rotary drilling
Link: https://hdl.handle.net/2027/mdp.39015078477307

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