Methane Control for Underground Coal Mines

摘要

The paper describes the history and technology of methane drainage in the UnitedStates as well as other countries. The methane drainage technology developed in other countries is a valuable resource since their longer history of mining has already forced mine operators to deal with methane emission problems only now being experienced in the United States. Methods for accessing the need for methane drainage as well as the data required for planning and implementing an appropriate system are reviewed. The effectiveness of the various technologies at reducing methane emissions underground and/or the in-place gas content of individual coalbeds is illustrated with case studies. In addition to the safety and productivity gains to be realized from methane drainage systems, the potential for commercialization of coalbed methane is also discussed.