Search U.S. government technical reports digitized or harvested by TRAIL.
Evolution of methane detecting devices for coal mines
Methane buildup during cutting and continuous mining operations
Explosibility of coal dust in an atmosphere containing a low percentage of methane
Methane in the Pittsburgh coalbed, Washington County, Pa.
Effects of hydraulic stimulation on coalbeds and associated strata
Hydraulic stimulation of a surface borehole for gob degasification
Experimental studies on the origin and accumulation of coalbed gas
Grouting horizontal drainage holes in coalbeds
Control of methane by ventilation of shafts during raise drilling