一种新型水溶性两性聚合物的合成与性能评价

A Novel Water Soluble Amphoteric Polymer Synthesis and Performance Evaluation of Department

以甲基丙烯酸、丙烯酰胺、苯乙烯磺酸钠、二甲基二烯丙基氯化铵为单体进行四元共聚,合成出新型水溶性两性离子聚合物降滤失剂。并对合成温度、合成时间、单体加量及引发剂加量等反应条件进行了合理优化。对合成聚合物进行了抗温、抗盐、抗钙、降滤、防膨试验评价。结果表明,该合成聚合物具有较好的抗温、抗盐、抗钙、降滤以及防膨能力。在饱和盐水钻井液中的降滤失效果尤其显著,抗温能力达到200℃以上,能够满足高温钻井的需求。

With methyl acrylic acid,acrylamide,sodium styrene sulfonate,dimethyl diene propyl chloride quaternary copolymerization monomer.A fluid loss additire of a new water soluble amphotericion polymer is synthetized.Determines the optimum addition amount,monomer and synthetic temperature,synthetic time,monomer and initiator are determined.Synthetic polymer for the temperature resistance,salt resistance,calcium resistance,fluid,prevent is experimentally evaluatied.Results show that the synthetic polymer has good temperature resistance,salt resistance,calcium resistance,and fluid and expansion capacity.And,in the saturated salt water drilling fluid,the filtration reduction effect is obvious,temperature resistant capacity is above 200℃,it can satisfy the demands of high temperature drilling.