Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
Patent
1996-11-12
1999-03-09
Bagnell, David J.
Mining or in situ disintegration of hard material
Processes
Breaking down by direct contact with fluid
175 62, 299 56, E21C 2560, E21C 3520
Patent
active
058790578
ABSTRACT:
A horizontal remote mining system comprising a water jet cutting head, down hole crusher, jet pump, and guidance system for orchestrating select excavation of a horizontal borehole. The system is assembled on the end of a drill string comprised of multiple compartments accommodating various water pressures and functions in association with the remote excavation process. Selective tubing is also utilized to facilitate movement of air and ventilation of the borehole. In this manner, relatively thin coal seams can be economically mined.
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Peters William J.
Schwoebel Jeffrey J.
Smith Carl W.
Amvest Corporation
Bagnell David J.
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