Degasification of coal seams

Details Degasification of coal seams Degasification of coal seams

1980-06-04

1981-12-01

Pate, III, William F.

Mining or in situ disintegration of hard material

Processes

Mine safety

299 19, 299 2, 166 50, E21C 3700

Patent

active

043032745

ABSTRACT:
Mineable coal seams which are in proximity to an overlying or underlying coal seam are degasified in advance of and during mining by drilling a generally horizontal borehole in the overlying or underlying coal seam and producing gas therefrom.

REFERENCES:
patent: 3650564 (1977-03-01), Williamson
patent: 3814480 (1974-06-01), Dahl
patent: 3934649 (1976-01-01), Pasini et al.
patent: 4183407 (1980-01-01), Knopnik
patent: 4194580 (1980-03-01), Messenger

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