Apparatus and method of mining subterranean rubble piles

Details Apparatus and method of mining subterranean rubble piles Apparatus and method of mining subterranean rubble piles

1979-07-16

1981-08-18

Purser, Ernest R.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Dissolving or chemical reaction

175 57, E21B 4328

Patent

active

042843065

ABSTRACT:
Disclosed is a method of solution mining the mineral content of a subterranean cavity containing a rubble pile positioned on the floor thereof and the subterranean cavity communicating with the surface by at least two boreholes, by drilling a liner through a cased borehole into the rubble pile, disconnecting the drill string from the liner, withdrawing the drill string from the borehole, introducing into the borehole a sealing meant to seal the annular space between the liner and the casing, introducing a solvent into the cavity and withdrawing from the cavity a solution enriched in the mineral contained in the rubble.

REFERENCES:
patent: 1905497 (1933-04-01), Peters
patent: 3495875 (1970-02-01), Dahms et al.
patent: 3556597 (1971-01-01), Porter
patent: 3578808 (1971-05-01), Edmonds et al.
patent: 3600039 (1971-08-01), Porter
patent: 3603095 (1971-09-01), Hendrix
patent: 3637261 (1972-01-01), Porter

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