Horizontal Trajectories of Rotary-drilled Holes

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

Degasification Study from an Air Shaft in the Beckley Coalbed

Behavior of Coal-gas Reservoirs

Grouting Horizontal Drainage Holes in Coalbeds

Method Factors for Anemometer Measurement at Pipe Outlets

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

Review of Membrane Technology for Methane Recovery from Mining Operations

Sorption Investigations of Methane on Coal

Design and Development of Drill Equipment

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

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

Methane Drainage Study in the Sunnyside Coalbed, Utah

Underground Gob Gas Drainage During Longwall Mining

Rotary Drilling Holes in Coalbeds for Degasification

Water Infusion of Coalbeds for Methane and Dust Control

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

Water Infusion: An Effective and Economical Longwall Dust Control

Degasification of the Mary Lee Coalbed, Brookwood, Ala

Triboelectric Effects on Polyethylene Methane Drainage Pipelines