Gas withdrawal from an in situ oil shale retort

Details Gas withdrawal from an in situ oil shale retort Gas withdrawal from an in situ oil shale retort

1977-02-14

1979-02-20

Purser, Ernest R.

Mining or in situ disintegration of hard material

Tunnel recovery of fluid material

299 12, 299 19, E21C 4110, E21F 100

Patent

active

041403436

ABSTRACT:
Liquid and gaseous products are recovered from oil shale in an in situ oil shale retort containing a fragmented permeable mass of particles containing oil shale by retorting oil shale in the fragmented mass to produce gaseous and liquid products. The liquid products are withdrawn from the retort to a first level in unfragmented formation below the elevation of the bottom boundary of the retort. Gaseous products are withdrawn from the retort to a second level below the elevation of the first level.

REFERENCES:
patent: 2630306 (1953-03-01), Evans
patent: 2801089 (1957-07-01), Scott, Jr.
patent: 3001776 (1961-09-01), Poollen
patent: 3661423 (1972-05-01), Garret
patent: 4017119 (1977-04-01), Lewis
Report to Lawrence Livermore Laboratory, by Golder Associates, 10-1974.
Research & Development on Rubble In-Situ Extraction of Oil Shale at Lawrence Livermore Lab, Rothman, Quarterly Col. School of Mines, Apr. 1975, pp. 159-178.
"Technical and Economic Study of an Underground Mining, Rubblization and In -Situ Retorting System. . . .", Aug. 1975, NTIS PB249344, pp. 91-103.

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