Experimental Study On The Viscosity Of Polymer Solution At The Bottom Wells

The viscosity of polymer in a static mixer can not be accurately measured, so the estimated amount was inaccurated and the polymer was wasted. It is very important to confirm the polymer solution's viscosity at the bottom wells.The purpose of this paper is to determine the viscosity of polymer solution at the bottom. But no direct measurement of the viscosity of polymer solution at the bottom, according to the analysis of polymer solution injection system, the measure of model experiments was taken to achieve the goals. The model and prototype must be guaranteed between the similarity, so the similarity theory was used to get the similarity between the two criteria and determine the model similar rate. In order to make the results of the model more accurate, the same polymer powder and solvent were used in prototype and model. The motion law of fluid in the pipe was analysed and measure method of the polymer solution viscosity in model.Thus the program of the model experiments was determined: range of polymer solution pressures and its corresponding flow were measured at different temperatures ,concentrations and preparation solvents.Then the type of rheology and the flow curve in connection with corresponding rheological parameters were obtained through analysing polymer solution rheology. Thermo-sensitive and speed-sensitive nature of polymer solution's apparent viscosity were obtained according to analysing the experimental data, furthermore the apparent viscosity were determined by the polymer solvent and concentration. Lastly, a small computing software were programed to receiving the actual viscosity of polymer solution at the bottom by the similarity between the prototype and model .