Process for enhancing oil recovery using scleroglucan powders
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United States of America Patent
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Jun 28, 1994
Issued Date -
N/A
app pub date -
Jan 25, 1993
filing date -
Apr 19, 1991
priority date (Note) -
Expired
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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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