Search U.S. government technical reports digitized or harvested by TRAIL.
Control of methane by ventilation of shafts during raise drilling
Underground gob gas drainage during longwall mining
Probability of encountering coalbed discontinuities during vertical and horizontal borehole drilling
Inhibition and extinction of coal dust and methane explosions
Site-specific and regional geologic considerations for coalbed gas drainage
Methodology for determining occluded gas contents in domal rock salt