Degasification of coal

Details Degasification of coal Degasification of coal

1984-07-23

1985-10-01

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Processes

Mine safety

166276, 166278, E21F 500

Patent

active

045442088

ABSTRACT:
A coal seam is degasified in advance of its being mined by drilling one or more generally horizontal holes from a working face into the seam, and placing a particulate propping agent into the borehole to maintain its integrity.

REFERENCES:
patent: 2083625 (1937-06-01), White
patent: 2652117 (1953-09-01), Arendt et al.
patent: 3650564 (1972-03-01), Williamson
patent: 3692114 (1972-09-01), Murphy, Jr. et al.
patent: 4299295 (1981-11-01), Gossard
patent: 4471840 (1984-09-01), Lasseter et al.

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