Formulation Optimization of AM/AA/DMDAAC Pre-crosslinking Plugging Agent
Du Liangjun~1 Yue Qing~2 Zhao Keli~1 (1.College of Materials and Engineering,Southwest Petroleum University,Chengdu 610500; 2.Automatic Instrument Branch of Sinkiang Oilfield Construction Corporation,Kelamayi 834000)
The pre-crosslinking plugging agent AM/AA/DMDAAC was synthesized from acrylamide(AM), acrylic acid(AA) and dimethyldiallylammonium chloride(DMDAAC) by aqueous solution polymerization using N,N'-methylene bisacrylamide as crosslinking agent.The optimal reaction conditions were determined as follows:m(AM):m(AA):m(DMDAAC)=10:2:1.initiator dosage 0.12%.cross-linking agent dosage 0.06%,pH 4.6 and reaction temperature 50℃.
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