Method of obtaining oil from oil shale deposits

Details Method of obtaining oil from oil shale deposits Method of obtaining oil from oil shale deposits

1978-04-07

1980-10-28

Pate, III, William F.

Mining or in situ disintegration of hard material

Tunnel recovery of fluid material

299 13, 299 19, E21C 4110

Patent

active

042303672

ABSTRACT:
The present method involves the initial mining of horizontally extending layers of oil-rich or "kerogen phase continuous" shale. The oil-rich shale is brought to the surface where it is retorted in above-ground retorts of one of the known types. The leaner oil shale which is still "in situ" is then explosively fragmented into the voids created when the oil-rich shale was mined, and oil is obtained as the fragmented shale is ignited, in accordance with known horizontal type modified in situ oil shale retorting techniques.

REFERENCES:
patent: 3434757 (1969-03-01), Prats
patent: 3661423 (1972-05-01), Garret
patent: 3951456 (1976-04-01), Ridley
patent: 4017119 (1977-04-01), Lewis
patent: 4043598 (1977-08-01), French et al.
patent: 4149595 (1979-04-01), Cha
patent: 4162706 (1979-07-01), Cha
patent: 4167291 (1979-09-01), Ridley
"Oil Shale Mining and the Environment", Mining Engineering, Apr. 1978, pp. 360-363.

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