Browsing SINTEF Open by Author "Lie, Knut-Andreas"
Now showing items 1-20 of 36
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The 11th Society of Petroleum Engineers Comparative Solution Project: Problem Definition
Nordbotten, Jan Martin; Fernø, Martin; Flemisch, Bernd; Kovscek, Anthony R.; Lie, Knut-Andreas (Peer reviewed; Journal article, 2024)This article contains the description of, and call for participation in, the 11th Society of Petroleum Engineers Comparative Solution Project (the 11th SPE CSP, https://spe.org/csp). It is motivated by the simulation ... -
A fully implicit WENO scheme on stratigraphic and unstructured polyhedral grids
Lie, Knut-Andreas; Mykkeltvedt, Trine Solberg; Møyner, Olav (Journal article; Peer reviewed, 2019)Many authors have used higher-order spatial discretizations to reduce numerical diffusion, which can be particularly pronounced when simulating EOR processes involving active chemical substances that are transported by ... -
A simulation workflow for large-scale CO2 storage in the Norwegian North Sea
Lie, Knut-Andreas; Nilsen, Halvor Møll; Andersen, Odd; Møyner, Olav (Journal article; Peer reviewed, 2015)Large-scale CO2 injection problems have revived the interest in simple models, like percolation and vertically-averaged models, for simulating fluid flow in reservoirs and aquifers. A series of such models have been collected ... -
Accelerating multiscale simulation of complex geomodels by use of dynamically adapted basis functions
Klemetsdal, Øystein; Møyner, Olav; Lie, Knut-Andreas (Journal article; Peer reviewed, 2019)A number of different multiscale methods have been developed as a robust alternative to upscaling and as a means for accelerated reservoir simulation of high-resolution geomodels. In their basic setup, multiscale methods ... -
An Open-Source Toolchain for Simulation and Optimization of Aquifer-Wide CO2 Storage
Andersen, Odd; Lie, Knut-Andreas; Nilsen, Halvor Møll (Journal article, 2016) -
Analysis of CO2 trapping capacities and long-term migration for geological formations in the Norwegian North Sea using MRST-co2lab
Nilsen, Halvor Møll; Lie, Knut-Andreas; Andersen, Odd (Journal article; Peer reviewed, 2015)MRST-co2lab is a collection of open-source computational tools for modeling large-scale and long-time migration of CO2 in conductive aquifers, combining ideas from basin modeling, computational geometry, hydrology, and ... -
Categorization of Norwegian Continental Shelf formations in terms of geological CO2 storage potentials
Allen, Rebecca; Nilsen, Halvor Møll; Andersen, Odd; Lie, Knut-Andreas (Journal article; Peer reviewed, 2017)In the present study, we use data published alongside the Norwegian Petroleum Directorate (NPD) storage atlases to further investigate the storage capacity of 23 formations found in the Norwegian Continental Shelf. Our ... -
A Comparison of Consistent Discretizations for Elliptic Problems on Polyhedral Grids
Klemetsdal, Øystein Strengehagen; Møyner, Olav; Raynaud, Xavier; Lie, Knut-Andreas (Chapter, 2020)In this work, we review a set of consistent discretizations for second-order elliptic equations, and compare and contrast them with respect to accuracy, monotonicity, and factors affecting their computational cost (degrees ... -
Comparison of two different types of reduced graph-based reservoir models: Interwell networks (GPSNet) versus aggregated coarse-grid networks (CGNet)
Lie, Knut-Andreas; Krogstad, Stein (Peer reviewed; Journal article, 2022)Computerized solutions for field management optimization often require reduced-order models to be computationally tractable. The purpose of this paper is to compare two different graph-based approaches for building such ... -
Data-driven modelling with coarse-grid network models
Lie, Knut-Andreas; Krogstad, Stein (Peer reviewed; Journal article, 2023)We propose to use a conventional simulator, formulated on the topology of a coarse volumetric 3D grid, as a data-driven network model that seeks to reproduce observed and predict future well responses. The conceptual ... -
Efficient flow diagnostics proxies for polymer flooding
Krogstad, Stein; Lie, Knut-Andreas; Nilsen, Halvor Møll; Berg, Carl Fredrik; Kippe, Vegard (Journal article; Peer reviewed, 2017)Flow diagnostics refers to a family of numerical methods that within a few seconds can compute visually intuitive quantities illuminating flow patterns and well connections for full 3D reservoir models. The starting point ... -
Efficient reordered nonlinear Gauss–Seidel solvers with higher order for black-oil models
Klemetsdal, Øystein Strengehagen; Rasmussen, Atgeirr Flø; Møyner, Olav; Lie, Knut-Andreas (Peer reviewed; Journal article, 2019)The fully implicit method is the most commonly used approach to solve black-oil problems in reservoir simulation. The method requires repeated linearization of large nonlinear systems and produces ill-conditioned linear ... -
Efficient reordered nonlinear Gauss–Seidel solvers with higher order for black-oil models
Klemetsdal, Øystein Strengehagen; Rasmussen, Atgeirr Flø; Møyner, Olav; Lie, Knut-Andreas (Peer reviewed; Journal article, 2019)The fully implicit method is the most commonly used approach to solve black-oil problems in reservoir simulation. The method requires repeated linearization of large nonlinear systems and produces ill-conditioned linear ... -
Fully implicit higher-order schemes applied to polymer flooding
Mykkeltvedt, Trine Solberg; Raynaud, Xavier; Lie, Knut-Andreas (Journal article; Peer reviewed, 2017)In water-based EOR methods, active chemical or biological substances are added to modify the physical properties of the fluids or/and the porous media at the interface between oil and water. The resulting displacement ... -
Fully implicit simulation of polymer flooding with MRST
Bao, Kai; Lie, Knut-Andreas; Møyner, Olav; Liu, Ming (Journal article; Peer reviewed, 2017)The present work describes a fully implicit simulator for polymer injection implemented in the free, open-source MATLAB Reservoir Simulation Toolbox (MRST). Polymer injection is one of the widely used enhanced oil recovery ... -
Fully-implicit simulation of vertical-equilibrium models with hysteresis and capillary fringe
Nilsen, Halvor Møll; Lie, Knut-Andreas; Andersen, Odd (Journal article, 2015)Geological carbon storage represents a new and substantial challenge for the subsurface geosciences. To increase understanding and make good engineering decisions, containment processes and large-scale storage operations ... -
GAWPS: A MRST-based module for wellbore profiling and graphical analysis of flow units
Oliveira, Gustavo P.; Rodrigues, Thiago N. E.; Lie, Knut-Andreas (Peer reviewed; Journal article, 2022)Several graphical methods have been developed to understand the stratigraphy observed in wells and assist experts in estimating rock quality, defining limits for barriers, baffles, and speed zones, and in particular, delineating ... -
An implicit local time-stepping method based on cell reordering for multiphase flow in porous media
Linga, Gaute; Møyner, Olav; Nilsen, Halvor Møll; Arthur, Moncorgé; Lie, Knut-Andreas (Peer reviewed; Journal article, 2020)We discuss how to introduce local time-step refinements in a sequential implicit method for multiphase flow in porous media. Our approach relies heavily on causality-based optimal ordering, which implies that cells can be ... -
Multiscale Mixed Methods on Corner-Point grids: Mimetic versus Mixed Subgrid Solvers
Aarnes, Jørg; Krogstad, Stein; Lie, Knut-Andreas (Research report, 2006)Multiscale simulation is a promising approach to facilitate direct simulation of large and complex grid-models for highly heterogeneous petroleum reservoirs. Unlike traditional simulation approaches based on ... -
Nonlinear domain-decomposition preconditioning for robust and efficient field-scale simulation of subsurface flow
Møyner, Olav; Rasmussen, Atgeirr Flø; Klemetsdal, Øystein; Nilsen, Halvor Møll; Moncorgé, Arthur; Lie, Knut-Andreas (Peer reviewed; Journal article, 2023)We discuss a nonlinear domain-decomposition preconditioning method for fully implicit simulations of multicomponent porous media flow based on the additive Schwarz preconditioned exact Newton method (ASPEN). The method ...