【摘要】 文章应用任意拉格朗日-欧拉方法(ALE)对油水两相流固耦合问题进行了研究;详细推导了ALE描述下的两相渗流与变形多孔介质的耦合数学模型方程,解决了孔隙骨架变形介质与渗流方程的统一描述问题;通过编制相应的ALE有限元程序,分析了注水驱替过程,检验了所提出的模型及相关数值算法。对该模型方程讨论发现,若取ALE网格移动速度为岩层骨架变形速度将简化两相渗流方程,降低数值求解难度。更多还原

【Abstract】 In this paper,the Arbitrary Lagrangian-Eulerian method(ALE) is applied to the coupled model for oil/water flow in deformed porous media.The ALE frame referred to porous solid and fluid flow is derived and a consistent coordinate frame description for the governing formation is established.When the mesh motion is equal to the velocity of the deformed porous media,a simpler formulation can be presented which reduces the difficulty of numerical solution.In the numerical testing,it is applied to the simulation of water injection in reservoir.Some simulation results,which demonstrate the validity of the ALE formulation,have been obtained.更多还原