skip to content
Search
Search U.S. government technical reports digitized or harvested by
TRAIL
.
Keyword Search
Enter your search term(s):
[advanced search]
3 results returned
Browse TRAIL Inventories
(opens in new tab)
Search results
Rotary drilling holes in coalbeds for degasification
Grouting horizontal drainage holes in coalbeds
Degasification study from an air shaft in the Beckley Coalbed
Refine your search results
Published Year
1970-1979 (2)
1980-1989 (1)
Subject
Boring (1)
Coal mines and mining--Safety measures (1)
Coalbed methane drainage--West Virginia (1)
Degassing of coal (1)
Methane (1)
Methane--United States (1)
Mine gases (1)
Mine safety (1)
Mine ventilation (1)
Author
Aul, George N. (3) *
Cervik, Joseph. (2)
Cervik, Joseph, (1)
Fields, H. H. (1)
Goodman, Tobias W. (1)
