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Probability of encountering coalbed discontinuities during vertical and horizontal borehole drilling
| Author: | Houseknecht, David W. |
|---|---|
| Year: | 1982 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:8665 |
| Series: | Report of investigations / Bureau of Mines ; |
| Report Number: | 8665 |
| Subjects: | Coal mines and mining |
| Methane | |
| Boring | |
| Link: | https://hdl.handle.net/2027/mdp.39015078472712 |
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