Now showing items 1-10 of 14
Robust Control Volume Methods for Reservoir Simulation on Challenging Grids
(The University of Bergen, 2010-02-19)
Modelling the non-Hydrostatic Pressure in σ-coordinate Ocean Models
(The University of Bergen, 2006-09-22)
Auxiliary variables for 3D multiscale simulations in heterogeneous porous media
The multiscale control-volume methods for solving problems involving flow in porous media have gained much interest during the last decade. Recasting these methods in an algebraic framework allows one to consider them ...
Inexact linear solvers for control volume discretizations in porous media
We discuss the construction ofmulti-level inexact linear solvers for control volume discretizations for porous media. The methodology forms a contrast to standard iterative solvers by utilizing an algebraic hierarchy ...
Field-case simulation of CO2-plume migration using vertical-equilibrium models
When injected in deep saline aquifers, CO2 moves radially away from the injection well and progressively higher in the formation because of buoyancy forces. Analyzes have shown that after the injection period, CO2 will ...
Fractal structures in freezing brine
(Cambridge University Press, 2017-09)
The process of initial ice formation in brine is a highly complex problem. In this paper, we propose a mathematical model that captures the dynamics of nucleation and development of ice inclusions in brine. The primary ...
Mass Conservative Domain Decomposition for Porous Media Flow
Postinjection Normal Closure of Fractures as a Mechanism for Induced Seismicity
(American Geophysical Union, 2017-10-04)
Understanding the controlling mechanisms underlying injection-induced seismicity is important for optimizing reservoir productivity and addressing seismicity-related concerns related to hydraulic stimulation in Enhanced ...
Modelling of the Shear Dilation Based Hydraulic Stimulation in Enhanced Geothermal Systems Considering Fractures in Different Scales
A numerical approach for modelling of shear dilation of existing fractures in hydraulic stimulation of geothermal reservoirs at low elevated pressures is presented. The fractured rock in the reservoir is modelled as ...
Two-scale preconditioning for two-phase nonlinear flows in porous media
Solving realistic problems related to flow in porous media to desired accuracy may be prohibitively expensive with available computing resources. Multiscale effects and nonlinearities in the governing equations are among ...