A mathematical model of two phase non Darcy percolation has been established for reservoirs with anisotropic dual media of low permeability, and is solved by using finite difference method.

• 注水开发这种油藏时,见水前注入率不能太大;见水后可适当增大注入率(存在一最佳注入率),以减弱非达西流的影响,对于低渗双重介质油藏开发有重要指导意