阳离子型聚合物稠化剂的合成与性能评价  

Synthesis and property evaluation of cationic polymeric thickeners

作　　者：呼强强 田雨 郑皓轩 田浩睿 张瑞[1] 赵帅 师永民 HU Qiang-qiang;TIAN Yu;ZHENG Hao-xuan;TIAN Hao-rui;ZHANG Rui;ZHAO Shuai;SHI Yong-min(Shaanxi University of Science and Technology,Shaanxi Provincial Key Laboratory of Light Chemical Auxiliaries,Xi’an 710021,China;School of Earth and Space Sciences,Peking University,Beijing 100871,China)

机构地区：[1]陕西科技大学陕西省轻化工助剂重点实验室,陕西西安710021 [2]北京大学地球与空间科学学院,北京100871

出　　处：《应用化工》2023年第4期1024-1028,共5页Applied Chemical Industry

基　　金：国家自然科学基金(51904180)。

摘　　要：以丙烯酰胺、30%丙烯酰胺/甲叉双丙烯酰胺(29∶1)、甲基丙烯酰氧乙基三甲基氯化铵、十六/十八烷基二甲基烯丙基氯化铵为主要合成单体,聚合引发剂为水溶性2,2-偶氮二(2-甲基丙基脒)二盐酸盐,合成疏水缔合型阳离子聚合物稠化剂(PASM)。对产物进行结构表征及性能测试,结果表明,稠化剂PASM的临界缔合浓度为0.5%,分子量为417.3×104,耐Na+和Ca2+能力强,并且随着矿化度的增加,起初体系的粘度呈现出上升趋势,表现出优异的增稠性能。低浓度使用状态下即可达到较好的防膨效果,悬砂性能优异,经过硫酸铵破胶后无残渣,破胶液不会对地层造成二次伤害,具有广阔的工业化前景。Acrylamide,30%acrylamide/methyl-diacrylamide(29∶1),methylacryloxyethyl trimethylammonium chloride,hexadecyl-octadecyl dimethylallyl ammonium chloride were the main synthetic monomers.The polymerization initiator was water soluble 2,2-azo(2-methylpropamidine)dihydrochloride,and the hydrophobic association cationic polymer thickener(PASM)was synthesized.Structural characterization and performance test of the products were carried out.The results show that the critical association concentration of the thickener PASM is 0.5%,the molecular weight is 417.3×104,the resistance to Na+and Ca 2+is strong,and with the increase of salinity,the initial viscosity of the system shows an increasing trend,showing excellent thickening performance.Under the condition of low concentration,high anti-swelling effect can be achieved,and the suspended sand performance is excellent.There is no residue after ammonium sulfate breaking,and the breaking liquid will not cause secondary damage to the formation,so it has a broad prospect of industrialization.

关 键 词：疏水缔合 阳离子聚合物 稠化剂 

分 类 号：TQ317[化学工程—高聚物工业] TE39[石油与天然气工程—油气田开发工程]