Pressure swing recovery system for mineral deposits

Details Pressure swing recovery system for mineral deposits Pressure swing recovery system for mineral deposits

1977-11-21

1979-08-07

Purser, Ernest R.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Dissolving or chemical reaction

299 14, 166249, E21B 4328, E21B 4325

Patent

active

041635809

ABSTRACT:
A process for the in-situ recovery of minerals from subsurface deposits comprises forming a gas-tight or self-sealing chamber and injecting into it a solvent which is pressure cycled over a predetermined period of time. This pressure cycling increases the mineral extraction efficiency by improving the dissolution of material contained in blind cracks in the underground formation.

REFERENCES:
patent: 2918126 (1959-12-01), Bodine
patent: 3048226 (1962-08-01), Smith
patent: 3273640 (1966-09-01), Huntington
patent: 3759574 (1973-09-01), Beard
patent: 3952800 (1976-04-01), Bodine

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