AM/AA/AMPS共聚堵水剂的制备及性能评价

Preparation and Performance Evaluation of AM/AA/AMPS Copolymerization Water Blocking Agent

以丙烯酰胺(AM)、丙烯酸(AA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为原料,过硫酸铵为交联剂,合成了一种体膨型堵水剂。AM/AA/AMPS三元共聚堵水剂的最佳合成条件为:摩尔比nAM:nAA:nAMPS=11:5:1,反应温度55℃,pH值8,引发剂用量0.3%。该堵水剂吸水性能好,强度较高,耐温抗盐性能较好,具有较好的选择堵水功能。

A bulk swelling water shutoffagent was synthesized from acrylamide acid(AM),acrylic acid(AA),2-acrylamide-2-methylpropanesulfonic acid(AMPS)and ammonium persulfate as cross-linking agent.The optimum synthesis conditions of AM/AA/AMPS terpolymer water shutoffagent is:nAM:nAA:nAMPS=11:5:1,reaction temperature of 55℃,pH value of 8,initiator dosage of 0.3%.The water shutoffagent has the advantages of good water absorption,high strength,good temperature resistance and salt resistance,and good water shutofffunction.