Gelled aqueous compositions
作者： Carl Andrew Lukach , Shao-Tang Sun
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摘要: Disclosed are gelled aqueous compositions having (1)(a) a water thickening amount of an anionic or nonionic soluble polymer in fresh brine solutions at pH greater than 10; (b) carboxylate functionality and cellulose backbone acidic pH; (c) (i) (ii) copolymer sodium acrylate from about 10% to 90% content, neutral 10 (2) cationic poly(diallylamine)-epichlorohydrin resin sufficient cause gelation form the composition. The useful recovery oil gas by fracturing as matrix plugging agent enhanced recovery.
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