一种CO_(2) 配伍的支链型压裂液的合成及性能  

Synthesis and properties of a branched-chain fracturing fluid with CO_(2)compatibility

作　　者：黄俊雄 王立新 刘通义[1,2] 张寅 HUANG Jun-xiong;WANG Li-xin;LIU Tong-yi;ZHANG Yin(School of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China;Sichuan Aosaide Material Technology Company Limited,Chengdu 610031,China)

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]奥赛德材料科技有限公司,四川眉山610031

出　　处：《应用化工》2022年第11期3195-3200,共6页Applied Chemical Industry

基　　金：国家自然科学基金重大项目(51390653)。

摘　　要：通过季铵化反应合成了一种长链单体HJX-1,并进行四元自由基水溶液聚合,合成了一种支链型聚合物压裂液稠化剂HAPAM-H。利用FTIR、1H NMR及SEM表征手段确定了产物结构。经过评价测试,HAPAM-H水溶液是以弹性为主导的黏弹性流体。将HAPAM-H支链型聚合物引入CO_(2)泡沫压裂液体系作为液相,在120℃及170 s^(-1)剪切速率条件下液相表观黏度能够保持在60 mPa·s以上。对体系泡沫性能进行测试,仅需0.05%起泡剂,起泡效率可达341%,80℃条件下泡沫压裂液体系泡沫析液半衰期可达80 h。实验结果表明,所合成的支链型压裂液能够与CO_(2)配伍,且所构建的CO_(2)泡沫压裂液体系性能稳定。Using quaternization reaction a long-chain monomer HJX-1 was synthesized.Subsequently,a branched-chain copolymer HAPAM-H was synthesized using the free radical polymerization of 4 kind of monomer.The structure of the product was determined by FTIR,1H NMR and SEM characterization methods.Tested results showed the branched-chain copolymer fracturing fluid HAPAM-H is a viscoelastic fluid dominated by elasticity.HAPAM-H was introduced to the CO_(2) foamed fracturing fluid system as liquid phase and the apparent viscosity of the liquid phase could maintain above 60 mPa·s under 120℃and 170 s^(-1) shear rate.The foam performance of the system was tested,with only 0.05%foaming agent the foaming efficiency could reach 341%,and the half-life of foam liquid elution could reach 80 h at 80℃.In conclusion the synthesized branched fracturing fluid is compatible with CO_(2) and the CO_(2) foamed fracturing fluid which contains HAPAM-H exhibited stable characteristics.

关 键 词：稠化剂 二氧化碳泡沫压裂液 聚合物 黏弹性 耐温耐剪切 

分 类 号：TQ31[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]