Underground Gob Gas Drainage During Longwall Mining

Directional Drilling for Coalbed Degasification: Program Goals and Progress in 1978, Issues 8361-8380

Analysis of Steelmaking Slags by Atomic Absorption Spectrophotometry Using Pressure Dissolution: 1978-1979

Drainage of Methane from the Overlying Pocahontas No. 4 Coalbed from Workings in the Pocahontas No. 3 Coalbed

Review of Horizontal Drilling Technology for Methane Drainage from U.S. Coalbeds

Control of Longwall Gob Gas with Cross-measure Boreholes (upper Kittanning Coalbed)

Methane Drainage Study Using an Underground Pipeline, Marianna Mine 58

Principles of Ionization Smoke Detection: Development of a New Sensor for Combustion-generated Submicrometer Particulates, Issues 8241-8260

Water Jet Perforation: A New Method for Completing and Stimulating in Situ Leaching Wells

Behavior of Coal-gas Reservoirs

Horizontal Trajectories of Rotary-drilled Holes

Grouting Horizontal Drainage Holes in Coalbeds

Method Factors for Anemometer Measurement at Pipe Outlets

Review of Membrane Technology for Methane Recovery from Mining Operations

Sorption Investigations of Methane on Coal

Comparisons Between Cross-measure Boreholes and Surface Gob Holes

Design and Development of Drill Equipment

Methane Control on Longwalls with Cross-measure Boreholes (Lower Kittanning Coalbed)

Methane Drainage Study in the Sunnyside Coalbed, Utah

Degasification and Production of Natural Gas from an Air Shaft in the Pittsburgh Coalbed