Probability of encountering coalbed discontinuities during vertical and horizontal borehole drilling
By: by David W. Houseknecht.
Series: Report of investigations ;; 8665; Report of investigations (United States. Bureau of Mines) ;; 8665.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1982
Place of publication: [Avondale, Md.]
Language: eng
Number of pages: 21
Subjects: Boring.; Methane.; Coal mines and mining.
Notes: Bibliography: p. 20-21.