Hydrocarbon-assisted thermal recovery method

Details Hydrocarbon-assisted thermal recovery method Hydrocarbon-assisted thermal recovery method

1995-06-15

1997-11-11

Neuder, William P.

Wells

Processes

Distinct, separate injection and producing wells

166303, E21B 4322

Patent

active

056853718

ABSTRACT:
A method of enhancing recovery of viscous petroleum is provided. A hydrocarbons mixture comprising hydrocarbons having a selected range of boiling points, all higher than that of water, is injected at relatively low concentrations along with steam. The range and distribution of hydrocarbon boiling points in the mixture to be injected may be selected by experiment or calculations.

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patent: 5092405 (1992-03-01), Prukop
patent: 5095989 (1992-03-01), Prukop
W. C. Richardson et al., "Composition of Remaining Oil in a Mature Steamflood," SPE/DOE 27796, presented at SPE/DOE Ninth Symposium on Improved Oil Recovery held in Tulsa, Okla., Apr. 17, 1994, pp. 137-151.
Roger M. Butler, Thermal Recovery of Oil & Bitumen, Prentice-Hall, Inc., 1991, pp. 168-173.
Texaco E & P Tech.Dept. Library Literature Search, 94-306, thru week 31 (1994).
K. D. Kimber, "Scaled Physical Modeling of Steam-Injection Experiments," SPE Reservoir Engineering, Aug. 1991.
R.S. Johnson et al., SPE Reservoir Engineering, 7, 75 (1992).

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