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研究了大庆油田第四采油厂用清水配制的带支链的部分水解聚丙烯酰胺(HPAM)溶液,在模拟地层温度下的流变性特点.结果表明,相同质量浓度的黏度平均相对分子质量(Mr)相近的聚合物溶液中,带有较多支链的黏度较高;动态震荡剪切试验中,带有较多支链的聚合物水溶液弹性较大.
The rheological properties of branched-chain partially hydrolyzed polyacrylamide (HPAM) prepared with fresh water in the fourth oil recovery plant of Daqing Oilfield at simulated formation temperature were studied.The results showed that the viscosity of the same mass concentration of the relative molecular weight (Mr ), The viscosity of the polymer solution with more branches is higher. In the dynamic oscillatory shear test, the polymer solution with more branches is more elastic.