Well stimulation for solution mining

Details Well stimulation for solution mining Well stimulation for solution mining

1975-08-14

1982-08-03

Pate, III, William F.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Dissolving or chemical reaction

166271, 166280, 166308, E21B 4326, E21B 4328

Patent

active

043424848

ABSTRACT:
Methods for increasing the permeability of a subterranean igneous rock formation penetrated by at least one well where a hydraulic fluid is injected into the formation at a pressure sufficient to cause diffusion into the natural fractures thereof and thus increase the cross-sectional area thereof, maintaining the pressure and injecting a second fluid which results, by the use thereof, in substantially maintaining the increased cross-sectional area after the pressure is reduced.

REFERENCES:
patent: 1806499 (1931-05-01), Ranney
patent: 2789788 (1957-03-01), Hughes et al.
patent: 3402966 (1968-09-01), Dahms et al.
patent: 3574599 (1971-04-01), Ortloff et al.
patent: 3640579 (1972-02-01), Lewis
patent: 3642068 (1972-02-01), Fitch
patent: 3822916 (1974-07-01), Jacoby

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