Rotary drilling techniques used in the Beckley coalbed
By: by Tobias W. Goodman.
Series: Report of investigations (United States. Bureau of Mines) -- 9238.
Publisher: Dept. of the Interior
Published: 1989
Place of publication: Washington, DC
Language: eng
Number of pages: 11
Subjects: Coalbed methane drainage -- West Virginia -- Rotary drilling
Other titles: Beckley coalbed.
Notes:  88600412  t_oclc

Bibliogr.

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