通过实验测定了聚合物溶液在流变仪中的流变曲线和流过多孔介质的流变曲线 ,用双流体模型和线形衰竭层模型计算了衰竭层效应。通过改变聚合物溶液浓度和岩心渗透率 ,计算了较宽浓度范围和渗透率范围内的衰竭层效应。结果表明 :衰竭层厚度大小与聚合物分子的回旋半径级别相当 ;线形模型计算的衰竭层厚度高于双流体模型计算的结果。在聚合物浓度较低时 ,衰竭层厚度变化不大 ;浓度高于缠结浓度时 ,衰竭层厚度随浓度升高而降低。但是 ,即使浓度高至 15 0 0mg/L ,衰竭层厚度对表观粘度的影响仍很大 ;衰竭层厚度与多孔介质的渗透率大小无关。因此 ,这种效应有利于聚合物在非均质油藏低渗透部位的流动 ,能起到扩大聚合物驱波及体积的作用。 The rheological curves of the polymer solution in the rheometer and the rheological curves of the porous media flowing through the porous media were experimentally determined, and the failure layer effect was calculated by using the two-fluid model and the linear failure layer model. By changing the polymer solution concentration and core permeability, the depletion layer effect over a wide range of concentrations and permeability was calculated. The results show that the thickness of the depleted layer is comparable to that of the polymer molecules. The thickness of the depleted layer calculated by the linear model is higher than that calculated by the two-fluid model. When the polymer concentration is low, the thickness of the failure layer does not change much; when the concentration is higher than the tangle concentration, the thickness of the failure layer decreases with the increase of the concentration. However, even at high concentrations of 150 mg / L, the effect of the thickness of the depleted layer on the apparent viscosity is still significant. The thickness of the failed layer is not related to the permeability of the porous media. Therefore, this effect is conducive to polymer flow in the low permeability of heterogeneous reservoirs, can play a role in expanding polymer wave and volume.