On the assumption that the total pressure drop of polymer solution flowing through the converging-diverging pore model is equal to the pressure drop of shear flow adding the pressure drop of elongation flow,a formula of elastic viscosity was established by the use of the microelement analysis method.
将多孔介质视为缩扩孔隙模型 ,对聚合物溶液在这种模型中的流动总压降等于剪切压降和拉伸压降之和的假设下 ,用微元分析方法建立了表征聚合物溶液在缩扩孔隙模型中拉伸流动弹性粘度公式。
According to the investigation actuality of viscoelastic behavior for polymer solution, theory and experiment on rheological characteristic, elastic viscosity, elastic viscosity in the porous medium of polymer solution and the elastic viscosity apply of polymer solution on polymer flooding are studied systematically.
针对聚合物溶液在多孔介质中流动时，在流速高于临界粘弹流速的情况下聚合物溶液的弹性拉伸显著问题，本文在国内外有关聚合物溶液粘弹性理论文献的基础上，对聚合物溶液的流变性、聚合物溶液的弹性粘度、聚合物溶液在多孔介质中的弹性粘度和聚合物溶液弹性粘度理论在聚合物驱油中的应用等方面内容进行了系统的理论和实验研究。