Eirik Keilegavlen studied applied and computational mathematics at the University of Bergen (UoB), where he completed his PhD in 2010. Since 2012, he has been a permanent researcher in the Porous Media Group at the Department of Mathematics at UoB. In 2013–14, he held a position as an Associate Visiting Research Scholar at Princeton University.

Keilegavlen’s research interests include mathematical modeling and numerical methods for coupled processes in the subsurface, motivated by applications such as geothermal energy and subsurface carbon storage. His expertise covers spatial discretization methods and solvers for linear and non-linear problems, with particular emphasis on simulations of fractured porous media. He combines this mathematical focus with an interest in applying advanced simulation techniques in other disciplines, and he regularly participates in interdisciplinary projects in collaboration with geologists, seismologists, geochemists, and engineers.

A central part of Keilegavlen’s work is the implementation of simulation technology in open-source scientific software. In 2017, he initiated development of the open-source simulation tool PorePy, tailored for coupled processes in fractured porous media, and he has been its lead developer since then. PorePy has been used extensively in research at UoB and has also been adopted by several research groups worldwide, including the PyGeoN offshoot developed at Politecnico di Milano.

In addition to leading the PorePy developer group, Keilegavlen has long experience as a project manager, heading projects financed by a combination of public and private resources. He also has extensive experience supervising early-career researchers, with a total of 16 PhD students -5 of them as main supervisor - and 4 postdoctoral researchers, two of them as main supervisor. Through his work with PorePy, he is strongly engaged in giving students experience in developing scientific software and using open-source tools.

Academic article

• Zabegaev, Yury; Berre, Inga; Keilegavlen, Eirik (2026). A block preconditioner for thermo-poromechanics with frictional deformation of fractures. (external link)
• Nordbotten, Jan Martin; Keilegavlen, Eirik (2025). Two-point stress approximation: A simple and robust finite volume method for linearized (poro-)elasticity and Stokes flow. (external link)
• Banshoya, Shin Irgens; Berre, Inga; Keilegavlen, Eirik (2025). A simulation study of the impact of fracture networks on the co-production of geothermal energy and lithium. (external link)
• Pettersson, Per; Keilegavlen, Eirik; Sandve, Tor Harald et al. (2025). Copula Modeling and Uncertainty Propagation in Field-Scale Simulation of CO2 Fault Leakage. (external link)
• Banshoya, Shin Irgens; Berre, Inga; Keilegavlen, Eirik (2024). A discrete fracture matrix framework for simulating single-phase flow and non-isothermal reactive transport. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik et al. (2024). Numerical Simulations of Viscous Fingering in Fractured Porous Media. (external link)
• Dang, Trung Hau; Keilegavlen, Eirik; Berre, Inga (2024). Modelling of mixed-mechanism stimulation for the enhancement of geothermal reservoirs. (external link)
• Both, Jakub Wiktor; Brattekås, Bergit; Keilegavlen, Eirik et al. (2024). High-fidelity experimental model verification for flow in fractured porous media. (external link)
• Stefansson, Ivar; Varela, Jhabriel; Keilegavlen, Eirik et al. (2024). Flexible and rigorous numerical modelling of multiphysics processes in fractured porous media using PorePy. (external link)
• Lipovac, Veljko; Triana, Omar Yesid Duran; Keilegavlen, Eirik et al. (2024). Unified flash calculations with isenthalpic and isochoric constraints. (external link)
• Zabegaev, Yury; Keilegavlen, Eirik; Iversen, Einar et al. (2024). Automated linear solver selection for simulation of multiphysics processes in porous media. (external link)
• Varela, Jhabriel; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2024). A model for saturated–unsaturated flow with fractures acting as capillary barriers. (external link)
• Ballini, Enrico; Formaggia, Luca; Fumagalli, Alessio et al. (2024). A hybrid upwind scheme for two-phase flow in fractured porous media. (external link)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2023). Crustal Conditions Favoring Convective Downward Migration of Fractures in Deep Hydrothermal Systems. (external link)
• Keilegavlen, Eirik; Fonn, Eivind; Johannessen, Kjetil Andre et al. (2023). PoroTwin: A Digital Twin for a FluidFlower Rig. (external link)
• Banshoya, Shin Irgens; Berre, Inga; Keilegavlen, Eirik (2023). Simulation of Reactive Transport in Fractured Porous Media. (external link)
• Hu, Xiaozhe; Keilegavlen, Eirik; Nordbotten, Jan Martin (2023). Effective Preconditioners for Mixed-Dimensional Scalar Elliptic Problems. (external link)
• Stefansson, Ivar; Keilegavlen, Eirik (2023). Numerical Treatment of State-Dependent Permeability in Multiphysics Problems. (external link)
• Varela, Jhabriel; Ahmed, Elyes; Keilegavlen, Eirik et al. (2022). A posteriori error estimates for hierarchical mixed-dimensional elliptic equations. (external link)
• Dang, Trung Hau; Berre, Inga; Keilegavlen, Eirik (2022). Two-level simulation of injection-induced fracture slip and wing-crack propagation in poroelastic media. (external link)
• Berge, Runar Lie; Gasda, Sarah Eileen; Keilegavlen, Eirik et al. (2022). Impact of deformation bands on fault-related fluid flow in field-scale simulations. (external link)
• Sargado, Juan Michael Uy Villanueva; Keilegavlen, Eirik; Berre, Inga et al. (2021). A combined finite element–finite volume framework for phase-field fracture. (external link)
• Berre, Inga; Boon, Wietse; Flemisch, Bernd et al. (2021). Verification benchmarks for single-phase flow in three-dimensional fractured porous media. (external link)
• Stefansson, Ivar; Keilegavlen, Eirik; Berre, Inga (2021). A fully coupled numerical model of thermo-hydro-mechanical processes and fracture contact mechanics in porous media. (external link)
• Stefansson, Ivar; Keilegavlen, Eirik; Halldorsdottir, Sæunn et al. (2021). Numerical Modelling of Convection-Driven Cooling, Deformation and Fracturing of Thermo-Poroelastic Media. (external link)
• Ahmed, Elyes; Fumagalli, Alessio; Budisa, Ana et al. (2021). Robust Linear Domain Decomposition Schemes for Reduced Nonlinear Fracture Flow Models. (external link)
• Keilegavlen, Eirik; Berge, Runar Lie; Fumagalli, Alessio et al. (2021). PorePy: an open-source software for simulation of multiphysics processes in fractured porous media. (external link)
• Starnoni, Michele; Berre, Inga; Keilegavlen, Eirik et al. (2021). Modeling and discretization of flow in porous media with thin, full-tensor permeability inclusions. (external link)
• Keilegavlen, Eirik; Duboeuf, Laure; Dichiarante, Anna Maria et al. (2021). Hydro-mechanical simulation and analysis of induced seismicity for a hydraulic stimulation test at the Reykjanes geothermal field, Iceland. (external link)
• Dang, Hau Trung; Keilegavlen, Eirik; Berre, Inga (2020). Numerical modeling of wing crack propagation accounting for fracture contact mechanics. (external link)
• Berre, Inga; Stefansson, Ivar; Keilegavlen, Eirik (2020). Fault slip in hydraulic stimulation of geothermal reservoirs: Governing mechanisms and process-structure interaction. (external link)
• Keilegavlen, Eirik; Fumagalli, Alessio; Berge, Runar Lie et al. (2019). Implementation of mixed-dimensional models for flow in fractured porous media. (external link)
• Kokubun, Max Akira Endo; Muntean, Adrian; Radu, Florin Adrian et al. (2019). A pore-scale study of transport of inertial particles by water in porous media. (external link)
• Fumagalli, Alessio; Keilegavlen, Eirik; Scialo, Stefano (2019). Conforming, non-conforming and non-matching discretization couplings in discrete fracture network simulations. (external link)
• Fumagalli, Alessio; Keilegavlen, Eirik (2019). Dual virtual element methods for discrete fracture matrix models. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik et al. (2019). Finite volume discretization for poroelastic media with fractures modeled by contact mechanics. (external link)
• Starnoni, Michele; Berre, Inga; Keilegavlen, Eirik et al. (2019). Consistent MPFA Discretization for Flow in the Presence of Gravity. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2019). Reactivation of fractures in subsurface reservoirs - A numerical approach using a static-dynamic friction model. (external link)
• Hodneland, Erlend; Keilegavlen, Eirik; Hanson, Erik Andreas et al. (2018). In vivo detection of chronic kidney disease using tissue deformation fields from dynamic MR imaging.. (external link)
• Alyaev, Sergey; Keilegavlen, Eirik; Nordbotten, Jan Martin (2018). A heterogeneous multiscale MPFA method for single-phase flows in porous media with inertial effects. (external link)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2018). Finite-volume discretisations for flow in fractured porous media. (external link)
• Ucar, Eren; Keilegavlen, Eirik; Berre, Inga et al. (2018). A finite-volume discretization for deformation of fractured media. (external link)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik (2018). Three-Dimensional Numerical Modeling of Shear Stimulation of Fractured Reservoirs. (external link)
• Fumagalli, Alessio; Keilegavlen, Eirik; Scialo, Stefano (2018). Input and benchmarking data for flow simulations in discrete fracture networks. (external link)
• Nordbotten, Jan Martin; Boon, Wietse; Fumagalli, Alessio et al. (2018). Unified approach to discretization of flow in fractured porous media. (external link)
• Berre, Inga; Doster, Florian; Keilegavlen, Eirik (2018). Flow in Fractured Porous Media: A Review of Conceptual Models and Discretization Approaches. (external link)
• Fumagalli, Alessio; Keilegavlen, Eirik (2018). Dual virtual element method for discrete fractures networks. (external link)
• Kokubun, Max Akira Endo; Radu, Florin Adrian; Keilegavlen, Eirik et al. (2018). Transport of polymer particles in oil–water flow in porous media: Enhancing oil recovery. (external link)
• Nissen, Anna; Keilegavlen, Eirik; Sandve, Tor Harald et al. (2017). Heterogeneity preserving upscaling for heat transport in fractured geothermal reservoirs. (external link)
• Alyaev, Sergey; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2017). Fractal structures in freezing brine. (external link)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik (2017). Postinjection normal closure of fractures as a mechanism for induced seismicity. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2017). High-accuracy phase-field models for brittle fracture based on a new family of degradation functions. (external link)
• Keilegavlen, Eirik; Nordbotten, Jan Martin (2017). Finite volume methods for elasticity with weak symmetry. (external link)
• Zuluaga, Luisa Fernanda; Rotevatn, Atle; Keilegavlen, Eirik et al. (2016). The effect of deformation bands on simulated fluid flow within fault-propagation fold trap types: Lessons from the San Rafael monocline, Utah. (external link)
• Guo, Bo; Bandilla, Karl W.; Nordbotten, Jan Martin et al. (2016). A multiscale multilayer vertically integrated model with vertical dynamics for CO2 sequestration in layered geological formations. (external link)
• Skogestad, Jan Ole; Keilegavlen, Eirik; Nordbotten, Jan Martin (2015). Two-scale preconditioning for two-phase nonlinear flows in porous media. (external link)
• Keilegavlen, Eirik; Nordbotten, Jan Martin (2015). Inexact linear solvers for control volume discretizations in porous media. (external link)
• Sandve, Tor Harald; Keilegavlen, Eirik; Nordbotten, Jan Martin (2014). Physics-based preconditioners for flow in fractured porous media. (external link)
• Alyaev, Sergey; Keilegavlen, Eirik; Nordbotten, Jan Martin (2014). Analysis of control volume heterogeneous multiscale methods for single phase flow in porous media. (external link)
• Keilegavlen, Eirik; Nordbotten, Jan Martin (2014). Conservative inexact solvers for porous media flow. (external link)
• Guo, B; Bandilla, Karl W.; Keilegavlen, Eirik et al. (2014). Application of Vertically-Integrated Models with Subscale Vertical Dynamics to Field Sites for CO2 Sequestration. (external link)
• Skogestad, Jan Ole; Keilegavlen, Eirik; Nordbotten, Jan Martin (2013). Domain decomposition strategies for nonlinear flow problems in porous media. (external link)
• Rotevatn, Atle; Sandve, Tor Harald; Keilegavlen, Eirik et al. (2013). Deformation bands and their impact on fluid flow in sandstone reservoirs: the role of natural thickness variations. (external link)
• Sandvin, Andreas; Keilegavlen, Eirik; Nordbotten, Jan Martin (2013). Auxiliary variables for 3D multiscale simulations in heterogeneous porous media. (external link)
• Keilegavlen, Eirik; Nordbotten, Jan Martin; Stephansen, Annette (2012). Tensor relative permeabilities: Origin, modeling and numerical discretization. (external link)
• Keilegavlen, Eirik; Kozdon, Jeremy E.; Mallison, Bradley T. (2012). Multidimensional upstream weighting for multiphase transport on general grids. (external link)
• Keilegavlen, Eirik; Aavatsmark, Ivar (2011). Monotonicity for MPFA methods on triangular grids. (external link)
• Nilsen, Halvor Møll; Herrera, Paulo; Ashraf, Seyed Meisam et al. (2011). Field-case simulation of CO2-plume migration using vertical-equilibrium models. (external link)
• Mundal, Sissel; Keilegavlen, Eirik; Aavatsmark, Ivar (2010). Simulation of anisotropic heterogeneous near-well flow using MPFA methods on flexible grids. (external link)
• Keilegavlen, Eirik; Nordbotten, Jan Martin; Aavatsmark, Ivar (2009). Sufficient criteria are necessary for monotone control volume methods. (external link)
• Keilegavlen, Eirik; Berntsen, Jarle (2009). Non-hydrostatic pressure in sigma-coordinate ocean models. (external link)

Academic lecture

• Berre, Inga; Both, Jakub Wiktor; Triana, Omar Yesid Duran et al. (2025). Multiphysics processes in fractured geothermal reservoirs. (external link)
• Both, Jakub Wiktor; Nevland, Marius; Stefansson, Ivar et al. (2025). Fracture reactivation in geothermal reservoirs: Strategies for numerical modeling of fracture contact mechanics in thermoporoelastic media. (external link)
• Stefansson, Ivar; Keilegavlen, Eirik; Both, Jakub Wiktor et al. (2024). Multiphysics simulation of fractured geothermal systems using PorePy. (external link)
• Nevland, Marius; Berre, Inga; Keilegavlen, Eirik et al. (2024). Nonlinear Solvers for Poromechanics with Fracture Contact Mechanics. (external link)
• Berre, Inga; Both, Jakub Wiktor; Halldorsdottir, Sæunn et al. (2024). Mathematical and Numerical Modelling of Process-Structure Interaction in FracturedGeothermal Systems. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik et al. (2024). Viscous fingering in fractured porous media. (external link)
• Berre, Inga; Banshoya, Shin Irgens; Stefansson, Ivar et al. (2024). Simulation of THMC processes in fractured porous media. (external link)
• Nevland, Marius; Berre, Inga; Keilegavlen, Eirik et al. (2023). Mathematical Modeling of Fractured Geothermal Systems. (external link)
• Both, Jakub Wiktor; Brattekås, Bergit; Keilegavlen, Eirik et al. (2023). Bridging the gap between lab experiments and mixed-dimensional modeling for flow and transport in fractured media. (external link)
• Both, Jakub Wiktor; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2023). PoroTwin: A Digital Twin for a Meter-Scale Porous Medium. (external link)
• Gasda, Sarah Eileen; Sandve, Tor Harald; Pettersson, Per et al. (2023). FRISK project: Practical field-scale simulation approaches for quantification of fault-related leakage under uncertainty. (external link)
• Triana, Omar Yesid Duran; Lipovac, Veljko; Keilegavlen, Eirik et al. (2023). An isenthalpic formulation for simulating geothermal systems with phase changes. (external link)
• Keilegavlen, Eirik; Banshoya, Shin Irgens; Halldorsdottir, Sæunn et al. (2022). Modeling and Simulation of Thermo-Hydro-Mechanical-Chemical Processes in Fractured Rocks with Applications to Geothermal Energy. (external link)
• Skurtveit, Elin; Bjørnarå, Tore Ingvald; Michie, Emma et al. (2022). Updated workflow for fault risk assessment and application to Vette Fault Zone, Horda Platform, offshore Norway. (external link)
• Dang, Trung Hau; Berre, Inga; Keilegavlen, Eirik (2022). Simulation of Induced Fracture Opening and Propagation in Poroelastic Rocks. (external link)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2022). Thermal fracturing and heat transfer below the superhot IDDP-1 well in Krafla, NE Iceland. (external link)
• Gasda, Sarah Eileen; Sandve, Tor Harald; Pettersson, Per et al. (2022). Practical field-scale simulation approaches for quantification of fault-related leakage under uncertainty. (external link)
• Dang, Hau Trung; Keilegavlen, Eirik; Berre, Inga (2022). Numerical modeling of injection-induced slip and propagation of fractures in poroelastic media. (external link)
• Banshoya, Shin Irgens; Berre, Inga; Keilegavlen, Eirik (2021). Control volume discretization of flow and chemical reactions in fractured porous media. (external link)
• Keilegavlen, Eirik; Fumagalli, Alessio (2021). A Flow Discretization for Conforming Discrete Fracture Matrix Models with Upscaling of Microscale Fractures. (external link)
• Keilegavlen, Eirik (2021). Simulation Technology for Nonlinear Multiphysics Problems in Mixed-Dimensional Geometries. (external link)
• Berge, Runar Lie; Gasda, Sarah Eileen; Keilegavlen, Eirik et al. (2021). Effective permeability of deformation bands in fault damage zones – Can deformation bands reduce the risk of fault leakage?. (external link)
• Berre, Inga; Ervik, Haakon Langeland; Stefansson, Ivar et al. (2021). Discrete Fracture-Matrix Modelling of Coupled THM Processes and Fracture Deformation. (external link)
• Halldorsdottir, Sæunn; Gudnason, Egill A; Berre, Inga et al. (2021). Heat Transfer and Flow Paths in the Deep Part of the IDDP-2 Well in Reykjanes, SW Iceland. (external link)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2021). Thermal fracturing and natural convection: A hidden source of geothermal activity in the earth’s crust?. (external link)
• Berre, Inga; Berge, Runar Lie; Dang, Hau Trung et al. (2020). Modelling of process-structure interaction resulting from fluid injection in fractured subsurface systems. (external link)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2020). Conceptual model of heat transfer near volcanic geothermal heat sources. (external link)
• Skurtveit, Elin; Bjørnarå, Tore Ingvald; Bohloli, Bahman et al. (2020). Dynamic changes in fault permeability – How can experimental work provide support for fault seal integrity?. (external link)
• Keilegavlen, Eirik; Stefansson, Ivar; Berre, Inga et al. (2020). A simulation model for fracture reactivation accounting for thermo-hydro-mechanical forces with applications to geothermal systems. (external link)
• Keilegavlen, Eirik; Fumagalli, Alessio; Stefansson, Ivar et al. (2019). Mixed-dimensional discrete fracture matrix models with heterogeneous discretization and non-matching grids. (external link)
• Keilegavlen, Eirik; Stefansson, Ivar; Berre, Inga et al. (2019). Enhancing Geothermal Reservoirs – Modelling and Analysis of Hydraulic and Thermal Stimulation. (external link)
• Duboeuf, Laure; Oye, Volker; Berre, Inga et al. (2019). Induced seismicity in the Reykjanes geothermal reservoir, Iceland: seismic event monitoring, characterization and clustering. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik et al. (2019). Numerical Modeling of Fracture Reactivation in a Three-dimensional Domain Based on a Coulomb Friction Law. (external link)
• Dang, Hau Trung; Keilegavlen, Eirik; Berre, Inga (2019). Fracture mechanics of brittle materials: fracture criteria and numerical approach. (external link)
• Dang, Hau Trung; Berre, Inga; Keilegavlen, Eirik (2019). Numerical investigation of wing crack initiation and propagation due to shear slip. (external link)
• Starnoni, Michele; Berre, Inga; Keilegavlen, Eirik et al. (2019). Consistent discretization of flow for inhomogeneous gravitational fields. (external link)
• Starnoni, Michele; Berre, Inga; Nordbotten, Jan Martin et al. (2019). Challenges in Modelling the Anisotropic Poroelastoplastic Behaviour of Fractured Rocks as Homogenized Media. (external link)
• Halldorsdottir, Sæunn; Axelsson, Gudni; Berre, Inga et al. (2019). Enhanced fluid convection and heat transfer near the bottom of the IDDP-1 well in Krafla, NE Iceland. (external link)
• Stefansson, Ivar; Berre, Inga; Fumagalli, Alessio et al. (2019). Numerical Methods for Flow in Fractured Porous Media in a Unified Implementation. (external link)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2018). Modelling of conditions close to geothermal heat sources. (external link)
• Berre, Inga; Berge, Runar Lie; Keilegavlen, Eirik et al. (2018). Three-dimensional numerical modelling of hydraulic stimulation of geothermal reservoirs: permeability enhancement and induced seismicity. (external link)
• Dang, Hau Trung; Berre, Inga; Keilegavlen, Eirik (2018). Fracture propagation in porous medium under shear stimulation of fluid flow. (external link)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik et al. (2018). Modelling of thermal shock induced fracture growth. (external link)
• Dang, Hau Trung; Berre, Inga; Keilegavlen, Eirik (2018). Multi-fracture propagation in porous medium under shear stimulation of fluid flow. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik et al. (2018). Viscous fingering in fractured porous media. (external link)
• Keilegavlen, Eirik; Fumagalli, Alessio; Stefansson, Ivar et al. (2018). Unified modeling and discretization of flow in fractured porous media. (external link)
• Berge, Runar Lie; Keilegavlen, Eirik; Fumagalli, Alessio et al. (2018). PorePy: A Python Simulation Tool for Fractured and Deformable Porous Media​. (external link)
• Keilegavlen, Eirik; Nordbotten, Jan Martin; Boon, Wietse et al. (2018). A general framework for heterogeneous discretizations in mixed-dimensional single-phase flow. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2018). Modeling fracture reactivation in a mixed dimensional setting​: Friction models and numerical challenges​. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2018). Modeling fracture reactivation in a mixed dimensional setting​: Friction models and numerical challenges​. (external link)
• Fumagalli, Alessio; Keilegavlen, Eirik; Sævik, Pål Næverlid (2017). Dual virtual element method for fractured geothermal systems. (external link)
• Berre, Inga; Ucar, Eren; Keilegavlen, Eirik (2017). A numerical approach for simulation of shear dilation of three-dimensional fracture networks. (external link)
• Berre, Inga; Ucar, Eren; Keilegavlen, Eirik (2017). An approach for simulation of hydraulic stimulation of a fractured geothermal reservoir. (external link)
• Keilegavlen, Eirik; Ucar, Eren; Nordbotten, Jan Martin et al. (2017). Finite volume discretizations of poro-elasticity in high­ contrast media. (external link)
• Keilegavlen, Eirik; Fumagalli, Alessio; Berge, Runar Lie et al. (2017). PorePy: A Python Simulation Tool for Fractured and Deformable Porous Media. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2017). Hydraulic stimulation and friction laws for fracture deformation – a numerical study. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2017). Hydraulic stimulation and friction laws for fracture deformation – a numerical study. (external link)
• Berre, Inga; Ucar, Eren; Keilegavlen, Eirik (2017). Simulation of hydraulic stimulation of fractured geothermal reservoirs. (external link)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2017). Handling of Fractures and Intersections in Finite Volume Methods. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2017). High-accuracy phase-field models for brittle fracture based on a new family of degradation functions. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2017). Hybrid FE-FV scheme for modeling pressure-induced fracture propagation in porous media using a phase-field approach. (external link)
• Keilegavlen, Eirik; Fumagalli, Alessio; Berge, Runar Lie et al. (2017). Discretization of mixed-dimensional problems using legacy codes. (external link)
• Keilegavlen, Eirik; Nordbotten, Jan Martin; Ucar, Eren et al. (2016). A weakly symmetric finite volume method for elasticity with application to fractures in porous media. (external link)
• Berre, Inga; Ucar, Eren; Keilegavlen, Eirik (2016). Enhanced geothermal systems – modeling of fracture response to hydraulic stimulation. (external link)
• Nissen, Anna Maria; Pettersson, Per; Keilegavlen, Eirik et al. (2015). Incorporating Geological Uncertainty in Error Control for Linear Solvers. (external link)
• Berre, Inga; Keilegavlen, Eirik; Ucar, Eren (2014). Mathematical modeling of permeability enhancement in geothermal reservoirs. (external link)
• Berre, Inga; Keilegavlen, Eirik; Ucar, Eren (2014). Modeling of Permeability Enhancement in Geothermal Reservoirs by Shear-Dilation Stimulation. (external link)
• Keilegavlen, Eirik; Mundal, Sissel; Aavatsmark, Ivar (2010). Near-well discretisations for anisotropic heterogeneous problems on flexible grids. (external link)

Poster

• Onal, Eda; Keilegavlen, Eirik; Dahle, Helge K. et al. (2024). Coupling Strategies in Large-Scale Simulations of CO2 Storage. (external link)
• Keilegavlen, Eirik (2023). PoroTwin: A digital FluidFlower. (external link)
• Both, Jakub Wiktor; Brattekås, Bergit; Keilegavlen, Eirik et al. (2023). Bridging the Gap Between Lab Experiments and Mixed-Dimensional Modeling for Flow in Fractured Media. (external link)
• Keilegavlen, Eirik (2022). WP 5 Coupling strategies and solvers for multi-model simulators. (external link)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2020). Modelling Superhot Geothermal Systems - Modelling enhanced fluid convection and heat transfer in superhot geothermal systems in Iceland. (external link)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2020). Utilization of superhot geothermal systems - Overview of field data from Iceland to be used in a new collaboration project between University of Bergen, ÍSOR, Equinor, Reykjavík Energy, Landsvirkjun and HS Orka. (external link)
• Skurtveit, Elin; Bjørnarå, Tore Ingvald; Bohloli, Bahman et al. (2020). Dynamic changes in fault permeability How can experimental work provide support for fault seal integrity?. (external link)
• Duboeuf, Laure; Oye, Volker; Berre, Inga et al. (2019). Automatic picking for induced seismicity in Iceland using an EAT (Empirically Aggregated Template) methodology. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2019). Phase-field Modeling of Brittle Crack Propagation in Saturated Porous Media. (external link)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2019). Simulation of temperature and pressure driven fracture deformation. (external link)
• Starnoni, Michele; Berre, Inga; Keilegavlen, Eirik et al. (2018). Mixed-dimensional poroelasticity for deformable fractured porous media. (external link)
• Duboeuf, Laure; Oye, Volker; Berre, Inga et al. (2018). Induced seismicity in a geothermal reservoir: a case study in the Reykjanes peninsula in Iceland. (external link)
• Budisa, Ana; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2018). Efficient Linear Solvers for Mixed-dimensional Flow Problems in Fractured Porous Media. (external link)
• Zuluaga, Luisa Fernanda; Rotevatn, Atle; Fumagalli, Alessio et al. (2018). Outcrop fracture characterization for geothermal reservoirs: challenges in optimizing inputs for reservoir models. (external link)
• Budisa, Ana; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2017). BDDC Preconditioner for Robust Discretization of Flow in Fractured Porous Media. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2017). Fracture Deformation Models in Geothermal Reservoirs. (external link)
• Stefansson, Ivar; Keilegavlen, Eirik; Berre, Inga (2017). Coupling Conditions for Finite Volume Methods for Fractured Porous Media. (external link)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2017). Finite Volume Methods for Flow and Transport in 3-Dimensional Fractured Porous Media. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2017). High-accuracy phase-field models for brittle fracture. (external link)
• Ucar, Eren; Keilegavlen, Eirik; Berre, Inga et al. (2016). Cell centered finite volume discretization of fractured deformable porous media. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2015). Coupling Issues Arising from Combining Fracture Phase-Field Models with Biot Poroelasticity. (external link)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik et al. (2015). Modeling of Hydroshearing in Geothermal Reservoirs. (external link)

Academic chapter/article/Conference paper

• Banshoya, Shin Irgens; Keilegavlen, Eirik; Berre, Inga (2023). Simulation of reactive transport in fractured geothermal reservoirs. (external link)
• Triana, Omar Yesid Duran; Lipovac, Veljko; Keilegavlen, Eirik et al. (2023). An isenthalpic formulation for simulating geothermal systems with phase changes. (external link)
• Stefansson, Ivar; Berge, Runar Lie; Berre, Inga et al. (2021). Modelling of Thermally Induced Fracture Slip caused by Fluid Injection During Geothermal Production. (external link)
• Berge, Runar Lie; Gasda, Sarah Eileen; Keilegavlen, Eirik et al. (2021). Effective permeability of deformation bands in fault damage zones – Can deformation bands reduce the risk of fault leakage?. (external link)
• Varela, Jhabriel; Gasda, Sarah Eileen; Keilegavlen, Eirik et al. (2021). A Finite-Volume-Based Module for Unsaturated Poroelasticity. (external link)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2020). Finite Volume Discretisation of Fracture Deformation in Thermo-poroelastic Media. (external link)
• Starnoni, Michele; Berre, Inga; Keilegavlen, Eirik et al. (2019). Anisotropic Poroelastoplastic Constitutive Model of Fractured Rocks. (external link)
• Halldorsdottir, Sæunn; Axelsson, Gudni; Berre, Inga et al. (2019). Enhanced fluid convection and heat transfer near the bottom of the IDDP-1 well in Krafla, NE Iceland. (external link)
• Dang, Hau Trung; Keilegavlen, Eirik; Berre, Inga (2019). Numerical investigation of wing crack initiation and propagation due to shear slip. (external link)
• Berre, Inga; Berge, Runar Lie; Keilegavlen, Eirik et al. (2018). Three-dimensional numerical modelling of fracture reactivation due to fluid injection in geothermal reservoirs. (external link)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik (2016). Modelling of the Shear Dilation Based Hydraulic Stimulation in Enhanced Geothermal Systems Considering Fractures in Different Scales. (external link)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik (2015). Simulation of Slip-Induced Permeability Enhancement Accounting For Multiscale Fractures. (external link)
• Sandve, Tor Harald; Berre, Inga; Keilegavlen, Eirik et al. (2013). Multiscale simulation of flow and heat transport in fractured geothermal reservoirs: inexact solvers and improved transport upscaling. (external link)
• Alyaev, Sergey; Keilegavlen, Eirik; Nordbotten, Jan Martin (2012). MULTISCALE SIMULATION OF NON-DARCY FLOWS. (external link)
• Sandve, Tor Harald; Keilegavlen, Eirik; Nordbotten, Jan Martin (2012). Mass Conservative Domain Decomposition for Fractured Porous Media. (external link)
• Nordbotten, Jan Martin; Keilegavlen, Eirik; Sandvin, Andreas (2012). Mass conservative domain decomposition for porous media flow. (external link)
• Keilegavlen, Eirik; Kozdon, Jeremy; Mallison, Brad T. (2010). Monotone Multi-dimensional Upstream Weighting on General Grids. (external link)
• Sandvin, Andreas; Skogestad, Jan Ole; Keilegavlen, Eirik et al. (2010). A Multiscale Framework for Simulating Multi-phase Flow on Flexible Grids. (external link)
• Keilegavlen, Eirik; Aavatsmark, Ivar (2008). Monotonicity for control volume methods on unstructured grids. (external link)
• Mundal, Sissel; Keilegavlen, Eirik; Aavatsmark, Ivar (2008). Discretization schemes for anisotropic heterogeneous problems on near-well grids. (external link)

Lecture

• Keilegavlen, Eirik; Fonn, Eivind; Johannessen, Kjetil et al. (2023). PoroTwin: A Digital Twin for a Meter-Scale Porous Media. (external link)
• Keilegavlen, Eirik (2022). Work Package 5: Coupling strategies and solvers for multi-model simulators. (external link)
• Halldorsdottir, Sæunn; Keilegavlen, Eirik; Berre, Inga (2020). Modelling Superheated and Supercritical Geothermal Systems (SiGS). (external link)
• Dang, Hau Trung; Keilegavlen, Eirik; Berre, Inga (2019). Numerical investigation of wing crack initiation and propagation due to shear slip. (external link)
• Budisa, Ana; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2018). Domain Decomposition Preconditioner for Mixed-dimensional Flow Problems in Fractured Porous Media. (external link)
• Budisa, Ana; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2017). BDDC Preconditioner for Robust Discretization of Flow in Fractured Porous Media. (external link)
• Budisa, Ana; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2017). A BDDC Method for Robust Discretization of Flow in Fractured Porous Media. (external link)
• Keilegavlen, Eirik; Fumagalli, Alessio; Berre, Inga et al. (2017). Simulation of geothermal energy extraction on realistic geologies using the dual virtual element method. (external link)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2017). Structural impact of fractures on dynamic processes in geothermal reservoirs. (external link)
• Alyaev, Sergey; Keilegavlen, Eirik; Nordbotten, Jan Martin (2017). A robust control volume heterogeneous multiscale method for non-linear flows in porous media. (external link)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik (2017). Understanding the stimulation of deep geothermal reservoirs through modeling and simulation. (external link)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2017). Coupled processes in geothermal systems. (external link)
• Alyaev, Sergey; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2017). Fractal structures in freezing brine. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2016). Improving the Accuracy of Phase-Field Models for Brittle Fracture. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2016). Impact of Degradation Functions on the Accuracy of Phase-Field Models for Brittle Fracture. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2015). Fracture propagation in Enhanced Geothermal Systems. (external link)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2015). Phase-field modelling of fluid pressure-induced fractures. (external link)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik (2015). Simulation of Slip-Induced Permeability Enhancement Accounting For Multiscale Fractures. (external link)

Academic anthology/Conference proceedings

• Klöfkorn, Robert; Keilegavlen, Eirik; Radu, Florin Adrian et al. (2020). Finite Volumes for Complex Applications IX - Methods, Theoretical Aspects, Examples. (external link)
• Fumagalli, Alessio; Berre, Inga; Formaggia, Luca et al. (2019). Numerical Methods for Processes in Fractured Porous Media. (external link)

Doctoral dissertation

• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2019). Phase-field Modeling and Simulation of Brittle Fracture. (external link)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik et al. (2018). Numerical modeling of shear stimulation in naturally fractured geothermal reservoirs. (external link)
• Keilegavlen, Eirik (2010). Robust Control Volume Methods for Reservoir Simulation on Challenging Grids. (external link)

Interview

• Haanæs, Øystein Rygg; Berre, Inga; Keilegavlen, Eirik (2019). Matematiske modeller gir bedre forståelse av menneskeskapte jordskjelv. (external link)

Masters thesis

• Varela, Jhabriel; Nordbotten, Jan Martin; Gasda, Sarah et al. (2018). Implementation of an MPFA/MPSA-FV Solver for the Unsaturated Flow in Deformable Porous Media. (external link)
• Nedreli, Anette; Keilegavlen, Eirik; Berre, Inga (2014). Upscaling of heat-transport in complex heterogeneous media. (external link)
• Elje, Elin Marie; Nordbotten, Jan Martin; Keilegavlen, Eirik (2010). A Multiscale Approach to Estimate Large Scale Flow and Leakage from Geological Storage. (external link)

Popular scientific article

• Keilegavlen, Eirik (2015). Hvordan håndtere usikkerhet ved CO2-lagring. (external link)
• Keilegavlen, Eirik (2014). Sprekker er nøkkelen til dyp jordvarme. (external link)

See a complete overview of publications in Cristin.