Method of explosive fracturing of a formation at depth

Details Method of explosive fracturing of a formation at depth Method of explosive fracturing of a formation at depth

1974-07-31

1976-04-20

Novosad, Stephen J.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Dissolving or chemical reaction

299 13, E21B 4326, E21B 4327, E21B 4328

Patent

active

039514587

ABSTRACT:
This invention pertains to recovery of metal values from ore deposits found at great depth; more specifically, the invention pertains to the recovery of metal values from an ore deposit by explosive fracturing of the ore formation at a depth at which the deposit is economically inaccessible by surface mining. Still further, this invention pertains to a method for explosive fracturing of a formation containing metal values at depth whereby hydraulically assisted fracturing is used to propagate an explosive shock wave so as to obtain a more desirable medium in which metal value recovery can be practiced.

REFERENCES:
patent: 2676662 (1954-04-01), Ritzman
patent: 3565173 (1971-02-01), Anderson
patent: 3822916 (1974-07-01), Jacoby
patent: 3841705 (1974-10-01), Girard et al.

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