Steam stimulation process for recovering heavy oil

Details Steam stimulation process for recovering heavy oil Steam stimulation process for recovering heavy oil

1979-12-14

1981-04-21

Novosad, Stephen J.

Wells

Processes

Cyclic injection then production of a single well

166303, E21B 4324

Patent

active

042627451

ABSTRACT:
A method for steam stimulating a heavy oil reservoir which realizes significant energy savings is disclosed. Steam is injected into the reservoir via one well, permitted to soak and then produced back directly into the reservoir via a second well. This flowback steam production is terminated when wellhead pressures equalize, or when more than trace amounts of hydrocarbons are produced. Additional steam is injected into the reservoir via the second well, permitted to soak, and heated heavy oil is produced via both wells.

REFERENCES:
patent: 3259186 (1966-07-01), Dietz
patent: 3294167 (1966-12-01), Vogel
patent: 3434544 (1969-03-01), Satter et al.
patent: 4109723 (1978-08-01), Widmyer
Bleakley, "Well-Bore Heat Losses", The Oil & Gas Journal, vol. 63, No. 10, Mar. 8, 1965, pp. 162, 164.
Farouq Ali, et al., "Current Steamflood Technology", Journal of Petroleum Technology, Oct. 1979, pp. 1332-1342.

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