为预测注水井注入能力递减，提出了一种新的方法。这种方法考虑了内、外滤饼的影响。从内滤饼到外滤饼的渗透时间是根据斯托克斯的动态模拟获得的俘获效率计算的。损害层的半径和渗透率是应用深层滤失模型计算的。推导出的公式允许我们把内、外滤饼中的流动阻力相结合。为获得总体注入能力的递减。 In order to predict the decreasing injection ability of injection wells, a new method is proposed. This method takes into account the impact of the filter cake inside and outside. The infiltration time from the inner filter cake to the outer filter cake is calculated based on the capture efficiency obtained by the dynamic simulation of Stokes. The radius and permeability of the damaged layer are calculated using a deep-bed filtration model. The derived formula allows us to combine the flow resistance inside and outside the filter cake. Decreasing the overall ability to inject.