Recovery system for oil shale deposits

Details Recovery system for oil shale deposits Recovery system for oil shale deposits

1976-11-15

1977-12-27

Purser, Ernest R.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

166259, 166303, E21C 4110

Patent

active

040651835

ABSTRACT:
A process for the in-situ recovery of hydrocarbon, carbon monoxide, and hydrogen values and associated minerals from subsurface oil shale deposits is provided by forming a gas-tight retort chamber and injecting it with a hot, pressurized gas followed by a solvent extraction and finally a combustion of the hydrocarbon residue. In order to conduct the process, the shale formation must be beneath a gas impermeable geological structure which will form a gas-tight chamber upon leaching of the water soluble minerals.

REFERENCES:
patent: 3502372 (1970-03-01), Prats
patent: 3586377 (1971-06-01), Ellington
patent: 3753594 (1973-08-01), Beard
patent: 3759328 (1973-09-01), Ueber et al.
patent: 3759574 (1973-09-01), Beard
patent: 3779601 (1973-12-01), Beard
patent: 3945679 (1976-03-01), Closmann
patent: 3957306 (1976-05-01), Closmann

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