The results show that the attenuation of permeability coefficient is unfavorable to water reinjection.Permeability coefficient is the important factor to water reinjection ability.

• 分别模拟渗透系数变化与不变时渗流场的情况，计算结果表明渗透系数衰减不利于回灌，是影响回灌能力的重要因素。