Doping a retort to determine the locus of a processing zone

Details Doping a retort to determine the locus of a processing zone Doping a retort to determine the locus of a processing zone

1978-01-16

1979-04-10

Pate, III, William

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

166251, 299 2, 299 13, E21C 4110

Patent

active

041485297

ABSTRACT:
The locus of a processing zone advancing through a fragmented permeable mass of particles in an in situ oil shale retort in a subterranean formation containing oil shale and which generates an effluent fluid is determined by placing an indicator source for providing an indicator, and monitoring effluent fluid from the processing zone for presence of indicator. The indicator source provides indicator at a predetermind temperature.

REFERENCES:
patent: 3044543 (1962-07-01), Ramey et al.
patent: 3072184 (1963-01-01), Parker
patent: 3620301 (1971-11-01), Nichols
patent: 3661423 (1972-05-01), Garret

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