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进行了流变性实验和渗流实验,研究了三元复合体系(ASP)在孔隙介质中流动时的流变性,建立了描述三元复合体系在多孔介质中流动时的本构方程,分析了影响三元复合体系在多孔介质中流变性的因素,给出了三元复合体系流变参数沿渗流方向的变化规律.三元复合体系在多孔介质中表现出粘弹流体的流变特性,在中等剪切速率下,以粘滞流动为主,其粘性满足幂律模式;在较高剪切速率下,以弹性流动为主.在渗流过程中,幂指数基本为一常数,在岩心入口端,稠度系数下降幅度较大,随着渗流距离的增加,其下降趋势逐渐变缓.
Rheological experiments and seepage experiments were carried out to study the rheological properties of ASP when it flowed in porous media. The constitutive equations describing the flow of ASP in porous media were established, Element composite system in porous media, the rheological parameters of the ternary composite system along the seepage direction are given.The rheological properties of the visco-elastic fluid in the porous media are shown in the ternary composite system, At viscous flow rate, the viscous coefficient satisfies the power-law model and elastic flow at high shear rate. During the seepage process, the power exponent is basically a constant. At the entrance of the core, the consistency coefficient A larger decline, with the increase of seepage distance, the downward trend gradually slowed down.