Mining of sulphur with foam barrier

Details Mining of sulphur with foam barrier Mining of sulphur with foam barrier

1981-08-03

1983-11-08

Purser, Ernest R.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

299 6, E21C 4114

Patent

active

044138598

ABSTRACT:
A method for mining subsurface deposits by injection of foam or a foaming agent plus air or other gas, or foam-making materials, into a selected porous zone above a sulphur bed or zone, and concomitantly displacing the gas and/or fluids occupying such porous zones concomitantly and/or thereafter, heating the sulphur bed below the foam injected deposit with superheated water or other means with the foam confining the upward movement of the superheated water or other fusion medium to the sulphur-bearing zone.

REFERENCES:
patent: 870620 (1907-11-01), Frasch
patent: 1750136 (1930-03-01), Schroeder
patent: 2784954 (1957-03-01), Ilfrey
patent: 3410344 (1968-11-01), Cornelius
patent: 3623770 (1971-11-01), Ayres et al.

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