一种水溶性P(AM-NaAA-NIDA)的合成及溶液性能  

Synthesis and Performance of a Water-soluble P( AM-Na AA-NIDA) as EOR Chemical

作　　者：罗珊[1] 苟绍华[1,2] 刘通义[1] 张勤[1] 何双江[1] 来安康 

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]油气田应用化学四川省重点实验室西南石油大学,四川成都610500

出　　处：《精细化工》2015年第6期679-684,共6页Fine Chemicals

基　　金：四川省青年科技创新研究团队(2015TD0007);四川省教育厅创新团队项目(13TD0025);西南石油大学大学生课外开放实验项目(KSZ14103)资助~~

摘　　要：以丙烯酰胺(AM)、丙烯酸钠(Na AA)、1-(2-N-丙烯酰基氨乙基)-2-油酸基咪唑啉(NIDA)为单体,在氧化还原体系下进行自由基胶束共聚合成了一种水溶性三元共聚物P(AM-Na AA-NIDA),并通过FTIR、1HNMR对聚合物进行了结构表征和性能评价。结果发现,2 000 mg/L的聚合物溶液具有较好的流变性能(120℃:黏度保留率为21.18%;1 000 s-1:黏度保留率为17.22%)及抗盐性能(12 000 mg/L Na Cl溶液:黏度保留率为20.33%)。相比30℃,该聚合物在120℃的黏度保留率为21.18%;在室内模拟岩芯驱替实验中,该聚合物提高采收率达17.68%。P（ AM-Na AA-NIDA） was synthesized by using acrylamide（ AM）,sodium acrylate（ Na AA）and 1-（ 2-N-acryloylaminoethyl）-2-oleic acid imidazoline（ NIDA） as monomers via redox free-radical copolymerization in the presence of（ NH4）2S2O8-Na HSO3 as an initiator. The structure of the synthesized copolymer was characterized by means of FTIR and1 HNMR analysis and its performance was evaluated. The results show that the rheological behavior and salt tolerance of the copolymer were substantially improved compared to partially hydrolyzed polyacrylamide（ HPAM）,and that the thermal resistance of the copolymer could be up to 21. 18% at 120 ℃ compared to that at 30 ℃. Core flooding experiments revealed that the EOR of P（ AM-Na AA-NIDA） could increase by 17. 68%. All the results demonstrate that the obtained polymer has prominent performance for potential application in enhancing oil recovery.

关 键 词：丙烯酰胺 1-(2-N-丙烯酰基氨乙基)-2-油酸基咪唑啉 流变性 抗盐性 油田化学品与油品添加剂 

分 类 号：O632.5[理学—高分子化学]