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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

Multipoint detection of products of combustion with tube bundles :transit times, transmissions of submicrometer particulates, and general applicability

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

Directionally controlled drilling to horizontally intercept selected strata, upper Freeport coalbed, Green County, Pa.

Remote monitoring of air quality in underground mines

Geology and gas content of coalbeds in vicinity of Bureau of Mines, Bruceton, Pa.

Methane emission from U.S. coal mines in 1975 :a survey : a supplement to Information circulars 8558 and 8659

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

Grouting horizontal drainage holes in coalbeds

Forecasting methane hazards in metal and nonmetal mines

Three coal mine gob degasification studies using surface boreholes and a bleeder system

Practical ignition problems related to intrinsic safety in mine equipment :four short-term studies

Underground gob gas drainage during longwall mining

Inhibition and extinction of coal dust and methane explosions

Methodology for determining occluded gas contents in domal rock salt

General time-dependent solutions for radon diffusion from samples containing radium

Simulation of methane flows in noncoal mines

Gas equilibrium in sealed coal mines

Evaluating ventilation parameters of three coal mine gobs

True flammable gas detecting system


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