Search

Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Enter your search term(s):
[advanced search]

7 results returned

Search results

• Degasification of the Mary Lee coalbed near Oak Grove, Jefferson County, Ala.,by vertical borehole in advance of mining
• Methane emission from U.S. coal mines in 1973,a survey: a supplement to IC 8558
• Cleat in bituminous coalbeds
• Hydraulic stimulation increases degasification rate of coalbeds
• Commercial-quality gas from the multipurpose borehole located in the Pittsburgh coalbed
• Longwall gob degasification with surface ventilation boreholes above the Lower Kittanning coalbed
• Water infusion of coalbeds for methane and dust control