Instability Analysis of Miscible Displacements in Homogeneous Porous Media
Authors: not saved
Abstract:
This article doesn't have abstract
similar resources
Miscible porous media displacements driven by non-vertical injection wells
High-resolution simulations are employed to identify and analyse the mechanisms dominating miscible porous media displacements generated by inclined injection wells. Compared to vertical injection wells, significant differences are observed that strongly influence breakthrough times and recovery rates. Constant density and viscosity displacements, for which the velocity field is potential in na...
full textNumerical Analysis of Finite Element Methods for Miscible Displacements in Porous Media
Finite element methods are used to solve a nonlinear system of partial diierential equations which models incompressible miscible displacement of one uid by another in porous media. From a backward nite diierence discretization we deene a sequentially implicit time-stepping algorithm which uncouples the system. The Galerkin method is employed to approximate the pressure, and improvement velocit...
full textParallel Nonoverlapping DDM Combined with the Characteristic Method for Incompressible Miscible Displacements in Porous Media
Two types of approximation schemes are established for incompressible miscible displacements in porous media. First, standard mixed finite element method is used to approximate the velocity and pressure. And then parallel non-overlapping domain decomposition methods combined with the characteristics method are presented for the concentration. These methods use the characteristic method to handl...
full textAn arbitrary order scheme on generic meshes for miscible displacements in porous media
We design, analyse and implement an arbitrary order scheme applicable to generic meshes for a coupled elliptic-parabolic PDE system describing miscible displacement in porous media. The discretisation is based on several adaptations of the Hybrid-High-Order (HHO) method due to Di Pietro et al. [Computational Methods in Applied Mathematics, 14(4), (2014)]. The equation governing the pressure is ...
full textNon-Isothermal Displacements with Step-Profile Time Dependent Injections in Homogeneous Porous Media
Miscible non-isothermal flow displacements in homogeneous porous media are modeled and analyzed in flows that involve step-profile velocities that alternate between injection and extraction. The viscosity is assumed to vary with both the concentration and the temperature. The flow is governed by the continuity equation, Darcy's law and the convection-diffusion equations for the concentration an...
full textStabilized finite element methods for miscible displacement in porous media
In this paper, we shall dérive a new model for the miscible displacement of one incompressible fluid by another in porous media using simple physical conservation laws For a dilute mixture m which the density can be approximated by a constant, this new model reduces to the standard one used for the last decade The model is governed by a nonlinear system consisting of pressure and concentration ...
full textMy Resources
Journal title
volume 9 issue 4
pages 25- 32
publication date 2012-10-01
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023