Method for forming a barrier

Details Method for forming a barrier Method for forming a barrier

2007-12-20

2008-12-16

Kreck, John (Department: 3672)

Mining or in situ disintegration of hard material

Processes

Mine safety

Reexamination Certificate

active

07464992

ABSTRACT:
A method for forming a barrier to seal off a remote chamber includes the steps of: forming a borehole that communicates between a first location and the remote chamber; inserting a conduit through the borehole to extend into the remote chamber; introducing a flowable material through the conduit to the remote chamber and dispensing the flowable material from the conduit to the desired location for the barrier, the flowable material upon being dispensed producing a substantially solid, self-sustaining composition; maintaining dispensing the flowable material to produce a sufficient quantity of the self-sustaining composition to form the barrier to seal the remote chamber, while ensuring that the composition does not block the borehole from communicating between the first location and the remote chamber; and thereafter removing the conduit to allow access to the borehole.

REFERENCES:
patent: 3799787 (1974-03-01), Davis
patent: 3927719 (1975-12-01), Maser
patent: 3934219 (1976-01-01), Monaghan
patent: 7334644 (2008-02-01), Ozment
Demonstration of Remote Mine Seal Construction; Gray-TA, Trevits-MA, Crayne-LM, Glogowski-P; 2004 SME Annual Meeting, Feb. 23-25, Denver, Colorado, preprint 04-194, Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., Feb. 2004; :1-8.

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