Determining the locus of a processing zone in an in situ oil sha

Details Determining the locus of a processing zone in an in situ oil sha Determining the locus of a processing zone in an in situ oil sha

1977-06-03

1978-10-17

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166252, 299 2, E21B 4324, E21B 4706

Patent

active

041203542

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 is determined by monitoring pressure in the retort. Monitoring can be effected by placing a pressure transducer in a well extending through the formation adjacent the retort and/or in the fragmented mass such as in a well extending into the fragmented mass.

REFERENCES:
patent: 2481051 (1949-09-01), Uren
patent: 3031762 (1962-05-01), Parker
patent: 3182721 (1965-05-01), Hardy
patent: 3586377 (1971-06-01), Ellington
patent: 4007963 (1977-02-01), Ridley
VAN Poollen, "Transient Tests Find Fire Front in an In-Situ Combustion Project", The Oil and Gas Journal, vol. 63, No. 5, Feb. 1, 1965, pp. 78-80.

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