油田注水实践表明，注入水与储层发生强烈而持久的搬运和沉积等地质作用，对储层性质有较大的改变。文中从储层宏观参数、微观参数和渗流参数3 个重要方面较详细地论述了注水开发过程中储层的动态变化，并主要从储层空间、流体性质和开发条件3 个方面阐述了储层注水后动态变化的影响因素，并分析了储层动态变化的机理。这对深入理解储层注水时的动态变化规律以及运用这些规律更好地描述高含—特高含水储层性质、预测油水运动规律和剩余油分布具有重要指导意义。

Water flooding in reservoirs and oilfields shows that the hydrodynamic geologic processes including transportation and deposition are strong and durative, and they change the reservoir properties much. The dynamic variation characteristics in water flooding process are analyzed in the aspects ofmacroparameters, micropara-meters and filtering parameters; the influencing factors for dynamic variation after water flooding are expounded in the aspects of reservoir space, fluid property and development conditions; the mechanism of dynamic variation is analyzed, which is significant for understanding the dynamic variation lawof water flooding reservoir, describing the high and extra-high water cut reservoir properties, and predicting the remaining oil distribution.