Search U.S. government technical reports digitized or harvested by TRAIL.
Three coal mine gob degasification studies using surface boreholes and a bleeder system
Control of methane by ventilation of shafts during raise drilling
Methane drainage study using an underground pipeline, Marianna mine 58
Control of longwall gob gas with cross-measure boreholes (upper Kittanning coalbed)
Coal mine air tempering :effectiveness, design, and roof support