Explosive-aided oil shale cavity formation

Details Explosive-aided oil shale cavity formation Explosive-aided oil shale cavity formation

1975-06-12

1976-05-18

Novosad, Stephen J.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

166272, 166299, E21B 4324, E21B 4326

Patent

active

039573060

ABSTRACT:
The forming of a rubble-containing cavity within a subterranean oil shale is improved by: leaching water-soluble minerals to form an areally extensive void in or above an upper portion and an areally extensive permeable zone or void within or contiguous with a lower portion of the oil shale; displacing an explosive fluid into the lower permeable zone; and detonating the explosive.

REFERENCES:
patent: 3002454 (1961-10-01), Chesnut
patent: 3434757 (1969-03-01), Prats
patent: 3533471 (1970-10-01), Robinson
patent: 3616855 (1971-11-01), Colgate
patent: 3759574 (1973-09-01), Beard
patent: 3771600 (1973-11-01), Hill
patent: 3779602 (1973-12-01), Beard et al.
patent: 3822916 (1974-07-01), Jacoby

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