甜菜碱型疏水改性聚合物的合成及性能  

Synthesis and properties of betaine hydrophobic modified polymer flooding

作　　者：张慧超 苟绍华[1,2] 周利华[1] 费玉梅 彭川[1] 陈龙[1] ZHANG Hui-chao;GOU Shao-hua;ZHOU Li-hua;FEI Yu-mei;PENG Chuan;CHEN Long(Oil and Gas Field Applied Chemistry Key Laboratory of Sichuan Province,Southwest Petroleum University,Chengdu 610500,China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]西南石油大学油气田应用化学四川省重点实验室,四川成都610500 [2]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500

出　　处：《应用化工》2019年第11期2627-2631,共5页Applied Chemical Industry

基　　金：四川省青年科技创新研究团队(2015TD0007);西南石油大学课外开放实验(KSZ18405)

摘　　要：以丙烯酰胺、丙烯酸、N-烯丙基-4-甲基苯磺酰胺与3-(3-甲基丙烯酰胺丙基-二甲氨基)丙基-1-磺酸盐为单体,采用过硫酸铵-亚硫酸氢钠为引发体系,在蒸馏水中进行自由基共聚,合成一种用于提高原油采收率的甜菜碱型疏水改性聚丙烯酰胺共聚物,测定共聚物溶液的流变性能。结果表明,由于磺基甜菜碱和苯磺酰胺结构的引入,共聚物的耐温抗盐等性能得到明显提升。通过室内模拟驱油实验,在65℃下该共聚物溶液可提高原油采收率11.4%,表明共聚物在提高原油采收率方面具有潜在的应用前景。The betaine hydrophobic modified polyacrylamide copolymer for enhanced oil recovery was successfully synthesized by using(NH4)2S2O8-NaHSO3 system with acrylamide(AM),acrylic acid(AA),N-allyl-4-methylbenzenesulfonamide(TCAP),and 3-(3-methacrylamidopropyl-dimethylammonio)-propane-1-sulfonate(MDPS) via free-radical copolymerization in deionized water.The rheological property of copolymer solutions was investigated.It was demonstrated that the properties of copolymer,such as temperature resistance and salt resistance,were significantly improved by introducing betaine sulfonate and phenylsulfonamide group.In addition,the copolymer for enhanced oil recovery at 65 ℃ was up to 11.4% by core flooding test which certified that the copolymer possessed excellent performance for potential application.

关 键 词：甜菜碱磺酸盐 粘弹性 改性聚丙烯酰胺 提高采收率 

分 类 号：TQ317[化学工程—高聚物工业] TE133[石油与天然气工程—油气勘探]