井中聚合物溶液声学参数的实验测量研究

采用脉冲反射法在实验室条件下对自来水和不同浓度聚合物溶液的声速进行了测量研究，经测量得到了聚合物溶液的密度，表观粘度、实验结果表明，水中的声传播速度大于聚合物溶液中的声传播速度，随着聚合物溶液浓度的增加，其声传播速度较小，其密度值也逐渐减小，但其表观粘度值逐渐增大，自来水和聚合物溶液的波阻抗差别不大。

Experimental Study on Acoustic Parameters of the Polymer Solution in a Borehole

Acoustic velocities of tap water and polymer solution were studied using ultrasonic-pulse reflection method in the laboratory. Polymer density and apparent viscosity were measured. It is shown that acoustic velocity of tap water is faster than that of the polymer solution. With the concentration of the polymer solution increasing,acoustic velocity of the polymer solution decreases, and the polymer density decreases too,but the apparent viscosity increases. There is a little difference between acoustic impedance of the tap water and polymer solution.