On the conservation properties in multiple scale coupling and simulation for Darcy flow with hyperbolic-transport in complex flows

E Abreu, C Diaz, J Galvis, J Pérez - Multiscale Modeling & Simulation, 2020 - SIAM
We present and discuss a novel approach to deal with conservation properties for the
simulation of nonlinear complex porous media flows in the presence of the following:(1) …

Three‐Phase Fractional‐Flow Theory of Foam‐Oil Displacement in Porous Media With Multiple Steady States

J Tang, P Castañeda, D Marchesin… - Water Resources …, 2019 - Wiley Online Library
Understanding the interplay of foam and nonaqueous phases in porous media is key to
improving the design of foam for enhanced oil recovery and remediation of aquifers and …

Numerical modelling of three-phase immiscible flow in heterogeneous porous media with gravitational effects

E Abreu - Mathematics and Computers in Simulation, 2014 - Elsevier
This paper presents a new numerical formulation for the simulation of immiscible and
incompressible three-phase water–gas–oil flows in heterogeneous porous media. We take …

[HTML][HTML] Weak asymptotic methods for scalar equations and systems

E Abreu, M Colombeau, E Panov - Journal of mathematical analysis and …, 2016 - Elsevier
In this paper we show how one can construct families of continuous functions which satisfy
asymptotically scalar equations with discontinuous nonlinearity and systems having …

On a universal structure for immiscible three-phase flow in virgin reservoirs

P Castañeda, E Abreu, F Furtado… - Computational …, 2016 - Springer
We discuss the solution for commonly used models of the flow resulting from the injection of
any proportion of three immiscible fluids such as water, oil, and gas in a reservoir initially …

Computing numerical solutions of the pseudo-parabolic Buckley–Leverett equation with dynamic capillary pressure

E Abreu, J Vieira - Mathematics and Computers in Simulation, 2017 - Elsevier
We present numerical approaches for solving a pseudo-parabolic partial differential
equation, which models incompressible two phase flow in porous media taking into account …

A relaxation projection analytical–numerical approach in hysteretic two-phase flows in porous media

E Abreu, A Bustos, P Ferraz, W Lambert - Journal of Scientific Computing, 2019 - Springer
Hysteresis phenomenon plays an important role in fluid flow through porous media and
exhibits convoluted behavior that are often poorly understood and that is lacking of rigorous …

Uniqueness of the Riemann solution for three-phase flow in a porous medium

AV Azevedo, AJ de Souza, F Furtado… - SIAM Journal on Applied …, 2014 - SIAM
We solve injection problems for immiscible three-phase flow described by a system of two
conservation laws with fluxes originating from Corey's model with quadratic permeabilities. A …

Effects of water on light oil recovery by air injection

NK Gargar, AA Mailybaev, D Marchesin, H Bruining - Fuel, 2014 - Elsevier
We formulate a mathematical model for one dimensional flow with chemical reactions
resulting from injection of air into a porous medium initially filled with gas, water and volatile …

A study of non-equilibrium wave groups in two-phase flow in high-contrast porous media with relative permeability hysteresis

E Abreu, P Ferraz, W Lambert - Communications in Nonlinear Science and …, 2023 - Elsevier
Non-equilibrium models are applicable in various physical situations, including phase
transitions, hysteresis, and chemical reactions, among others. To model the dynamics of …