聚合物驱数值模拟主要参数的确定

DETERMINATION OF THE MAIN PARAMETERS IN THE NUMERICAL SIMULATION OF POLYMER FLOODING

本文提出了在考虑多孔介质的性质、聚合物的性质、流变性和水的矿化度等因素影响下的水相有效粘度、渗透车降低系数、不可进入的孔隙体积分数以及非牛顿液体渗流速度与剪切速率关系的数学模型。导出了估算最大渗透率降低系数和最大吸附量的数学表达式,它们具有广泛的适用性。

This paper proposes and derives some mathematical expressions of aqueo -phase viscosity,permeability reduction factor,polymer inaccessible PV,shear rate VS Darcy velocity,maximum permeability reduction factor and maximum absorbed concentration of polymer affected by porous media,polymer property, rheological property and salinity.These mathematical expressions can be used in a wide rang.