Aminoalkylated polyacrylamide aldehyde gels, their preparation and use in oil recovery
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United States of America Patent
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Nov 8, 1988
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N/A
app pub date -
Apr 24, 1987
filing date -
Apr 24, 1987
priority date (Note) -
Expired
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Abstract
Aqueous gel-forming compositions useful for improving oil recovery from subterranean hydrocarbon-containing reservoirs are prepared by reacting an aminoalkylated polyacrylamide with an aldehyde, dialdehyde or derivative thereof in aqueous medium. These compositions are particularly effective in reducing excessive water encroachment at producer wells.
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