Process for enhancing oil recovery using scleroglucan powders

Details Process for enhancing oil recovery using scleroglucan powders Process for enhancing oil recovery using scleroglucan powders

1993-01-25

1994-06-28

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166294, 252 8554, E21B 4322

Patent

active

053238575

ABSTRACT:
The present invention is directed to a process for improving the dispersibility and the filterability of scleroglucan powders, in which a surfactant is incorporated in the coagulated polymer. The powder obtained according to the process has a dispersibility and a filterability after drying of the coagulum which are greatly superior to those of a powder treated after drying with the same quantity of surfactant or of a powder in solution treated with this same quantity of surfactant. The present invention is also directed to methods for preventing the sudden rush of well water into the strata of petroleum fields, to methods for modifying the injection profile, and to methods for improved hydrocarbon recovery from petroleum fields.

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Kohler, N. et al, "Selective Control of Water Production in Oil or Gas Producing Wells,", 4th EC Symposium, Berlin, Nov. 3-5, 1992.
Combe, J., et al, "EOR in Western Europe: Status and Outlook", Revue De L'Institut Francais Du Petrole, vol. 45, No. 1, Janvier-Fevrier 1990.

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