Method of solution mining salts from an underground salt deposit

Details Method of solution mining salts from an underground salt deposit Method of solution mining salts from an underground salt deposit

1980-06-10

1981-11-17

Faw, Jr., Price C.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Dissolving or chemical reaction

E21B 4328

Patent

active

043008011

ABSTRACT:
Salts from a salt deposit including magnesium and potassium salts are mined by a solution process in a cavity at the lower end of a borehole. A solvent liquid (water) is injected into the cavity at a level that is periodically raised whereby super imposed slices or cuts of the part of the deposit around the borehole are consecutively dissolved. Brine is recovered from a low level in the cavity. The injection rate of the solvent liquid and the recovery rate of the brine are controlled such that the vertical distribution of the potassium content of the brine in the cavity shows a maximum within the uppermost slice or cut.

REFERENCES:
patent: 3355212 (1967-11-01), Day
patent: 3433530 (1969-03-01), Dahns et al.
patent: 3442553 (1969-05-01), Kutz
patent: 3994531 (1976-11-01), Dillard
patent: 4007964 (1977-02-01), Goldsmith

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