Probability of encountering coalbed discontinuities during vertical and horizontal borehole drilling /
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| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Avondale, Md.:
U.S. Dept. of the Interior, Bureau of Mines,
[1982].
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| Series: | Report of investigations ;
8665 |
| Subjects: | |
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