有效模量理论仅对宏观连续变化的不均匀体有效,如果出现不连续界面,仍用有效模量理论研究波传播规律会导致失真或错误。实验表明,表征不连续界面性质的柔度系数对弹性波传播的影响较大。针对油气储层介质内部界面弹性波传播规律进行了理论分析,推导了诸如弹簧模型、麦克斯韦模型的反射系数与透射系数,得出了柔度系数与反射、透射、能量损耗、全反射等的相关变化规律。 The effective modulus theory is effective only for macroscopically continuous inhomogeneous bodies. If there is a discontinuous interface, the law of effective modulus can still be used to study the wave propagation law, which leads to distortion or error. Experiments show that the flexibility coefficient that characterizes the discontinuous interface has a great influence on the propagation of elastic wave. According to the theoretical analysis of the elastic wave propagation in the internal interface of oil and gas reservoirs, the reflection coefficient and transmission coefficient such as spring model and Maxwell model are deduced, and the correlation between flexibility coefficient and reflection, transmission, energy loss and total reflection are obtained The law of change.