Experimental Research on the Quantitative Characterizations of Elasticity and Viscosity of Polyacrylamide Solution
Through creep-recovery and dynamic experiments,the viscoelasticity of polyacrylamide solutions (in short polymer) with different mass concentration are studied,the proportions of elastic part and viscous part in the polymer solution are calculated and the limit of mass concentration called high concentration polymer solution is given.It is indicated that the elastic part of the polymer solution increases firstly and tends to be constant with the increase in mass concentration under low external force condition.The minimum mass concentration of the polymer solution keeping constant elastic part is 1500mg/L.Under low stress and low shear rate conditions,the viscous part of the polymer solution is greater than that of elastic part; but under oil reservoir shear rate (6.283s1) condition,the elastic part is greater than viscous part,and its elastic part increases with the increase in mass concentrations and the increment becomes smaller.
polyacrylamide elasticity viscosity quantitative characterizations
Huifen Xia Jiuran Zhang Wenguo Ma Xianing Li Qiuyue Yang
Key Laboratory of Enhance Oil and Gas Recovery of Education Ministry, Northeast Petroleum University, Daqing, Heilongjiang 163318, China
国际会议
厦门
英文
992-995
2012-01-04（万方平台首次上网日期，不代表论文的发表时间）