In-situ retorting of oil shale with in-situ formed arches

Details In-situ retorting of oil shale with in-situ formed arches In-situ retorting of oil shale with in-situ formed arches

1977-10-11

1979-03-13

Purser, Ernest R.

Mining or in situ disintegration of hard material

Tunnel recovery of fluid material

E21B 4324

Patent

active

041439171

ABSTRACT:
Shale oil is recovered from a horizontal oil shale deposit having an exposed vertical surface by:

REFERENCES:
patent: 1506920 (1924-09-01), Chambrier
patent: 1661390 (1928-03-01), Sinclair
patent: 2630306 (1953-03-01), Evans
patent: 3483115 (1969-12-01), Haddad et al.
patent: 3848927 (1974-11-01), Livingston
patent: 4018280 (1977-04-01), Daviduk

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