多效变黏滑溜水稠化剂制备与性能评价  

PREPARATION AND EVALUATION OF A MULTIFUNCTIONAL VARIABLE VIACOSITY SLICK-WATER THICKENER FOR FRACTURING

作　　者：程长坤 张成娟[1] 赵文凯[1] 王志晟 隋国杰 刘欢 Cheng Changkun;Zhang Chengjuan;Zhao Wenkai;Wang Zhisheng;Sui Guojie;Liu Huan(Drilling and Production Technology Research Institute of Qinghai Olifield,PetroChina,Dunhuang 736202,Gansu,China)

机构地区：[1]青海油田钻采工艺研究院,甘肃敦煌736202

出　　处：《精细石油化工》2023年第3期12-17,共6页Speciality Petrochemicals

摘　　要：以丙烯酰胺、丙烯酸、2-丙烯酰胺-2-甲基丙磺、2-丙烯酰胺-十八烷基磺酸钠(C18MPS)为单体、氨水为中和剂,通过反相乳液聚合与减压蒸馏工艺制备了一种低表界面张力、防膨率高的高浓乳液型多效变黏滑溜水稠化剂MHVFRs。优化的制备条件为:2.2%Span80+0.6%Tween81+0.1%C18MPS+40%单体,反应温度35℃,反应时间5.5 h。性能评价结果表明:0.025%MHVFRs水溶液降阻率为72.5%;100℃剪切2 h后黏度保持在65 mPa·s以上,破胶液表面张力26.55 mN/m,界面张力2.11 mN/m,防膨率88.5%。Using AM,AA,AMPS and C18MPS as raw materials,ammonia as neutralizing reagent,and in the presence of redox initiators,a multifunctional variable viscosity slick-water thickener(MHVFRs) was prepared by inverseemulsion polymerization and vacuum distillation process.The optimized preparation conditions were:the mass fraction of each component was 2.2% Span80,0.6% Tween 81,40% monomer concentration,0.1% C18MPS and reaction for 5.5 h at 35℃.The resistance reduction rate of 0.025% MHVFRs is72.5%.The temperature-resistant and shear-resistant experiments showed that the viscosity of 0.75% MHVFRs aqueous solution can remained above 65 mPa·s after sheared at a rate of 170 s~(-1) at 100℃ for 2 h.The surface tension of the glue breaking liquid is 26.55 mN/m,interfacial tension 2.11 mN/m,antiswelling rate of 88.5%.

关 键 词：变黏滑溜水 反相乳液聚合 高浓乳液 降阻 多效稠化剂 

分 类 号：TE39[石油与天然气工程—油气田开发工程]