摘要
以丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)和疏水单体丙烯酸异辛酯(EA)为主要原料,合成一种疏水改性P(AM/AMPS/EA)三元共聚物。最佳反应条件:AM、AMPS、EA单体加量分别为8.5 g、1.5 g、0.2 mL,反应温度40℃,引发剂含量为0.10%,(NH4)2S2O8-Na2HSO3摩尔比2∶1。通过红外光谱对聚合物进行了表征,并对其溶液性能评价。结果表明:在浓度0.2%时,表观黏度为1353 mPa·s,表现出良好的增黏能力。在90℃时,保留较高的黏度;在5%NaCl和0.5%CaCl2盐水当中,黏度值和保留率远高于部分水解聚丙烯酰胺(HPAM)。与HAPM相比具有更高的剪切黏度和黏弹性。在模拟驱油实验,其提高采收率值比HPAM高13.42%。
A hydrophobically modified P(AM/AMPS/EA)terpolymer was synthesized from acrylamide(AM),2-acrylamido-2-methylpropane sulfonic acid(AMPS)and hydrophobic monomer isooctyl acrylate(EA).The optimum reaction conditions were as follows:the dosage of AM,AMPS and EA was 8.5 g,1.5 g and 0.2 mL,the reaction temperature was 40℃,the initiator content was 0.10%,and the molar ratio of(NH4)2S2O8-Na2HSO3 was 2∶1.The polymer was characterized by IR and its solution performance was evaluated.The experimental results showed that the apparent viscosity was 1353 mPa·s at the concentration of 0.2%,which showed a good viscosity increasing ability;At 90℃,high viscosity was retained;In 5%NaCl and 0.5%CaCl2 brine,the viscosity value and retention rate were much higher than that of HPAM.Compared with HAPM,it had higher shear viscosity and viscoelasticity.In the simulated flooding experiment,its EOR was 13.42%higher than that of HPAM.
作者
郭光范
闫玲玲
曹孟菁
张玉平
苏花卫
Guo Guangfan;Yan Lingling;Cao Mengjing;Zhang Yuping;Su Huawei(Department of Petroleum Engineering, Chengde Petroleum College, Chengde 067000, Hebei, China;College of Metallurgy and Resources, Bayin Guoleng Vocational College, Korla 841000, Xinjiang, China)
出处
《精细石油化工》
CAS
北大核心
2020年第6期1-6,共6页
Speciality Petrochemicals
基金
2018年度河北省高等学校科学技术研究项目(ZD2018238)。
关键词
疏水改性共聚物
表观黏度
流变性
抗温抗盐
驱油效率
hydrophobic modified copolymer
apparent viscosity
rheology
temperature and salt resistance
oil displacement efficiency
