Numerical well model for non-Darcy flow through isotropic porous media[*]This work was supported in part by the EPA under grant # R 825207-01-1, by the State of Texas under ARP/ATP grant # 010366-168 and by a gift grant from Mobil Oil Corp.
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Numerical simulation of fluid flow in a hydrocarbon reservoir has to account for the presence of wells. The pressure of a grid cell containing a well is different from the average pressure in that cell and different from the bottom-hole pressure for the well [17]. This paper presents a study of grid pressures obtained from the simulation of single phase flow through an isotropic porous medium using different numerical methods. Well equations are proposed for Darcy flow with Galerkin finite elements and mixed finite elements. Furthermore, high velocity (non-Darcy) flow well equations are developed for cell-centered finite difference, Galerkin finite element and mixed finite element techniques. Keywords: Forchheimer flow, well models, porous media, finite element, mixed finite element Baltzer Science Publishers BV.
