Aminoalkylated polyacrylamide aldehyde gels, their...

Details Aminoalkylated polyacrylamide aldehyde gels, their... Aminoalkylated polyacrylamide aldehyde gels, their...

C - Chemistry, Metallurgy

08

L

31/23, 166/33, 4

C08L 33/26 (2006.01) C08F 8/28 (2006.01) C09K 8/512 (2006.01) C09K 8/88 (2006.01) E21B 33/138 (2006.01)

Patent

CA 1320303

564870 AMINOALKYLATED POLYACRYLAMIDE ALDEHYDE GELS, THEIR PREPARATION AND USE IN OIL RECOVERY 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.

564870

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