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- Hazard prevention and control:
- Degasification
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- Gob gas vent holes
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- Horizontal boreholes
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- Cross measure boreholes
- Document types:
- Information Circulars
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Results 1 - 3 of 3
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1/1/1994 - Information CircularsThis paper describes the history and technology of methane drainage in the US and other countries.
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1/1/1986 - Information CircularsThe goal of this research was to evaluate the integrity of existing shutoff valves and actuators used under high-temperature conditions in the Bureau of Mines' horizontal borehole methane drainage pipeline system and to determine system improvements.
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1/1/1980 - Information CircularsReviews underground methane drainage programs being conducted in various coalbeds. Equipment used in drainage programs such as drills, underground pipelines, and methane monitoring systems is described.
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Content source: National Institute for Occupational Safety and Health, Mining Program