超支化复合聚合物的制备及其性能研究  

Synthesis and properties of hyperbranched composite polymer solution

作　　者：杨晓燕 苟绍华[1,2] 刘孟雨 周利华[1] YANG Xiao-yan;GOU Shao-hua;LIU Meng-yu;ZHOU Li-hua(College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China;Oil&Gas Field Applied Chemistry Key Laboratory of Sichuan Province,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]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

出　　处：《应用化工》2020年第9期2291-2297,共7页Applied Chemical Industry

基　　金：四川省科技创新苗子工程项目(2019092)。

摘　　要：为了研究超支化复合聚合物溶液流变性能,扩大其在驱油领域的应用,通过阳离子超支化聚酰胺胺(HMC)与四元共聚物P(AA/AM/AMPS/MMA)制备了复配体系溶液(PA-MC)。结果表明,当聚合物浓度为2000 mg/L时,HMC最佳加量为30 mg/L,PA-MC表观黏度为560.3 mPa·s;在120℃、7.34 s^-1下,PA-MC表观黏度为165.6 mPa·s;在70℃下老化60 d后,黏度为274.2 mPa·s,黏度保留率为54.1%,且其微观形貌没有明显变化;在10000 mg/L NaCl、1500 mg/L MgCl2和1500 mg/L CaCl2中,PA-MC表观黏度分别为26.4,24.5,26.3 mPa·s,优于HPAM的16.5,14.5,16.3 mPa·s。另外,岩心驱替实验表明PA-MC具有较好的驱油性能,可以用作提高采收率的聚合物驱油剂。In order to study the rheological properties of hyperbranched composite polymer solution and expand its application in enhanced oil recovery(EOR),a compound system solution(PA-MC)was prepared by cationic hyperbranched polyamide amine(HMC)and quaternary copolymer P(AA/AM/AMPS/MMA).The results showed that when the polymer concentration was 2000 mg/L,the optimal concentration of HMC was 30 mg/L,and the maximum apparent viscosity of the composite system was 560.3 mPa·s.When the shear rate was 7.34 s^-1 at 120℃,the viscosity of the polymer composite system solution was 165.6 mPa·s;after 60 d aging at 70℃,the viscosity was 274.2 mPa·s and the retention rate of viscosity was 54.1%.In the solution of 10000 mg/L NaCl,1500 mg/L MgCl2 and 1500 mg/L CaCl2,the apparent viscosity of the composite solution was 26.4,24.5,26.3 mPa·s,respectively,which was better than the 16.4,14.5,16.3 mPa·s of HPAM.In addition,the core flooding experiments of the polymer showed that the PA-MC had an excellent oil displacement effect,and could be used as a polymer flooding agent for EOR.

关 键 词：超支化聚酰胺胺 表观黏度 黏弹性 聚合物复配 提高采收率 

分 类 号：TQ317[化学工程—高聚物工业] TE357[石油与天然气工程—油气田开发工程]