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- Information Circulars
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1/1/1987 - Information CircularsOutbursts are sudden and violent releases of gas and coal that result from a complex function of geology, stress regime, and gas pressure and content. The Bureau of Mines has reviewed methods for prediction and mitigation of such outbursts in use worldw...
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1/1/1986 - Information CircularsThis report presents a data base of gas content data. The data are presented in tabular form, by coalbed name and state. The components of the total gas content (lost, desorbed, and residual gas) are given. Location (state and county), sample depth, coa...
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1/1/1982 - Information CircularsThe objective of this paper is to provide information on specific geologic factors that should be considered prior to, during, and after the drilling of coalbed gas drainage boreholes. Many of the commonsense considerations that have been learned throug...
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Content source: National Institute for Occupational Safety and Health, Mining Program