Search U.S. government technical reports digitized or harvested by TRAIL.
Diffusion studies of light hydrocarbon gases through coal
Explosion-proof bulkheads :present practices
Methane emission from U.S. coal mines :a survey
Instruments for detecting gas in underground mines and tunnels
An in-situ diffusion parameter for the Pittsburgh and Pocahontas No. 3 coalbeds
Testing of coal-cutter materials for incendivity and radiance of sparks
Methane control by isolation of a major coal panel :Pittsburgh coalbed
Gases desorbed from five coals of low gas content
Degasification of virgin Pittsburgh coalbed through a large borehole
Accuracy and precision of several portable gas detectors
Methane emission from U.S. coal mines in 1973,a survey: a supplement to IC 8558
Coal mine combustion products:neoprenes, polyvinyl chloride compositions, urethane foam, and wood
Ventilation eddy zones at a model coal mine working face
Methane in the Pittsburgh coalbed, Washington County, Pa.
Gas chromatographic method for analyzing gases associated with coal
Continuous monitoring system for mine gas concentrations using tube bundles
Continuous gas monitoring using tube bundles at the Joanne mine fire
Accuracy and precision of several portable gas detectors:additional studies, a supplement to RI 7811
Commercial-quality gas from the multipurpose borehole located in the Pittsburgh coalbed
Evaluation of small, color-changing carbon monoxide dosimeters
Methane emissions from an advancing coal mine section in the Pittsburgh coalbed
Degasification and production of natural gas from an air shaft in the Pittsburgh coalbed
Sampling capability of vacutainers for fixed gases and low-molecular-weight hydrocarbons
Continuous radon gas survey of the Twilight Mine
Geology and methane content of the upper Freeport coalbed in Fayette County, Pa.
Effects of hydraulic stimulation on coalbeds and associated strata
Methane absorption in oil shale and its potential mine hazard
Remote monitoring of air quality in underground mines
Geology and gas content of coalbeds in vicinity of Bureau of Mines, Bruceton, Pa.
Hydraulic stimulation of a surface borehole for gob degasification
Methane accumulations in coal mine roof cavities
Methane emissions from gassy coals in storage silos
Methane drainage study in the Sunnyside coalbed, Utah
Experimental studies on the origin and accumulation of coalbed gas
Methane drainage :experience with hydraulic stimulation through slotted casing
Improved methods for monitoring production from vertical degasification wells
Directional drilling for coalbed degasification :program goals and progress in 1978