Thermomechanical fracture for recovery system in oil shale depos

Details Thermomechanical fracture for recovery system in oil shale depos Thermomechanical fracture for recovery system in oil shale depos

1976-11-15

1978-04-11

Purser, Ernest R.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

166251, 166259, E21B 4324, E21B 4328

Patent

active

040836045

ABSTRACT:
In a process for the recovery of resources from underground geological structures, the process is improved by fracturing the walls of the underground structure and large boulders or rocks by inducing thermal gradients in the deposits. Determination of the thermal gradients which will produce the desired fracturing pattern in each specific deposit involves subjecting a core sample to a controlled heating program. When the heating program has been established from tests on the core sample, it is then applied to the underground formation.

REFERENCES:
patent: 2661066 (1953-12-01), Bond
patent: 3465826 (1969-09-01), Terwilliger et al.
patent: 3502372 (1970-03-01), Prats
patent: 3539221 (1970-11-01), Gladstone
patent: 3753594 (1973-08-01), Beard
patent: 3759328 (1973-09-01), Veber et al.
patent: 3759574 (1973-09-01), Beard
patent: 3779601 (1973-12-01), Beard
patent: 3957306 (1976-05-01), Closmann

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