Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
4 results returnedSearch results
- Drainage of methane from the overlying Pocahontas no. 4 coalbed from workings in the Pocahontas no. 3 coalbed
- Methane drainage study using an underground pipeline, Marianna mine 58
- Comparison of rotary and in-hole motor techniques for drilling horizontal boreholes in coal
- Investigation of similarities between methane drainage potential of Utah's Sunnyside Coalbed and eastern U.S. coalbeds