Eirik Keilegavlen studerte anvendt og beregningsorientert matematikk ved Universitetet i Bergen (UiB), hvor han disputerte for doktorgraden i 2010. Siden 2012 har han vært fast forsker i forskningsgruppen for Porøse medier ved Matematisk institutt ved UiB. I 2013–14 var han gjesteforsker ved Princeton University.

Keilegavlens forsker på  matematisk modellering og numeriske metoder for koblede prosesser i undergrunnen, motivert av anvendelser som geotermisk energi og lagring av karbon i undergrunnen. Mye av arbeidet dreier seg om diskretiseringsmetoder og løsere for lineære og ikke-lineære problemer, med særlig vekt på simuleringer av porøse medier med sprekker. Han kombinerer dette matematiske fokuset med en interesse for å anvende avanserte simuleringsmetoder i andre fagområder, og deltar jevnlig i tverrfaglige prosjekter i samarbeid med geologer, seismologer og geokjemikere.

En sentral del av Keilegavlens arbeid er utvikling av åpen programvare for vitenskapelige beregninger. Han er grunnlegger og hovedansvarlig for utviklingen av det åpne simuleringsverktøyet PorePy, tilpasset koblede prosesser i sprukne porøse medier, og han har vært hovedutvikler siden. PorePy har vært mye brukt i forskning ved UiB og er også tatt i bruk av flere forskningsgrupper internasjonalt.

I tillegg til å lede PorePy-utviklergruppen har Keilegavlen lang erfaring som prosjektleder. Han er og en erfaren veileder, deriblant for totalt 16 doktorgradsstudenter – 5 av dem som hovedveileder – og 4 postdoktorer, hvorav to som hovedveileder. Gjennom sitt arbeid med PorePy er han sterkt engasjert i å gi studenter erfaring med utvikling av vitenskapelig programvare og bruk av verktøy med åpen kildekode.

Vitenskapelig artikkel

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

Vitenskapelig foredrag

• Berre, Inga; Both, Jakub Wiktor; Triana, Omar Yesid Duran et al. (2025). Multiphysics processes in fractured geothermal reservoirs. (ekstern lenke)
• 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. (ekstern lenke)
• Stefansson, Ivar; Keilegavlen, Eirik; Both, Jakub Wiktor et al. (2024). Multiphysics simulation of fractured geothermal systems using PorePy. (ekstern lenke)
• Nevland, Marius; Berre, Inga; Keilegavlen, Eirik et al. (2024). Nonlinear Solvers for Poromechanics with Fracture Contact Mechanics. (ekstern lenke)
• Berre, Inga; Both, Jakub Wiktor; Halldorsdottir, Sæunn et al. (2024). Mathematical and Numerical Modelling of Process-Structure Interaction in FracturedGeothermal Systems. (ekstern lenke)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik et al. (2024). Viscous fingering in fractured porous media. (ekstern lenke)
• Berre, Inga; Banshoya, Shin Irgens; Stefansson, Ivar et al. (2024). Simulation of THMC processes in fractured porous media. (ekstern lenke)
• Nevland, Marius; Berre, Inga; Keilegavlen, Eirik et al. (2023). Mathematical Modeling of Fractured Geothermal Systems. (ekstern lenke)
• 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. (ekstern lenke)
• Both, Jakub Wiktor; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2023). PoroTwin: A Digital Twin for a Meter-Scale Porous Medium. (ekstern lenke)
• 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. (ekstern lenke)
• Triana, Omar Yesid Duran; Lipovac, Veljko; Keilegavlen, Eirik et al. (2023). An isenthalpic formulation for simulating geothermal systems with phase changes. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• Dang, Trung Hau; Berre, Inga; Keilegavlen, Eirik (2022). Simulation of Induced Fracture Opening and Propagation in Poroelastic Rocks. (ekstern lenke)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2022). Thermal fracturing and heat transfer below the superhot IDDP-1 well in Krafla, NE Iceland. (ekstern lenke)
• Gasda, Sarah Eileen; Sandve, Tor Harald; Pettersson, Per et al. (2022). Practical field-scale simulation approaches for quantification of fault-related leakage under uncertainty. (ekstern lenke)
• Dang, Hau Trung; Keilegavlen, Eirik; Berre, Inga (2022). Numerical modeling of injection-induced slip and propagation of fractures in poroelastic media. (ekstern lenke)
• Banshoya, Shin Irgens; Berre, Inga; Keilegavlen, Eirik (2021). Control volume discretization of flow and chemical reactions in fractured porous media. (ekstern lenke)
• Keilegavlen, Eirik; Fumagalli, Alessio (2021). A Flow Discretization for Conforming Discrete Fracture Matrix Models with Upscaling of Microscale Fractures. (ekstern lenke)
• Keilegavlen, Eirik (2021). Simulation Technology for Nonlinear Multiphysics Problems in Mixed-Dimensional Geometries. (ekstern lenke)
• 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?. (ekstern lenke)
• Berre, Inga; Ervik, Haakon Langeland; Stefansson, Ivar et al. (2021). Discrete Fracture-Matrix Modelling of Coupled THM Processes and Fracture Deformation. (ekstern lenke)
• 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. (ekstern lenke)
• 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?. (ekstern lenke)
• Berre, Inga; Berge, Runar Lie; Dang, Hau Trung et al. (2020). Modelling of process-structure interaction resulting from fluid injection in fractured subsurface systems. (ekstern lenke)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2020). Conceptual model of heat transfer near volcanic geothermal heat sources. (ekstern lenke)
• 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?. (ekstern lenke)
• 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. (ekstern lenke)
• Keilegavlen, Eirik; Fumagalli, Alessio; Stefansson, Ivar et al. (2019). Mixed-dimensional discrete fracture matrix models with heterogeneous discretization and non-matching grids. (ekstern lenke)
• Keilegavlen, Eirik; Stefansson, Ivar; Berre, Inga et al. (2019). Enhancing Geothermal Reservoirs – Modelling and Analysis of Hydraulic and Thermal Stimulation. (ekstern lenke)
• Duboeuf, Laure; Oye, Volker; Berre, Inga et al. (2019). Induced seismicity in the Reykjanes geothermal reservoir, Iceland: seismic event monitoring, characterization and clustering. (ekstern lenke)
• 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. (ekstern lenke)
• Dang, Hau Trung; Keilegavlen, Eirik; Berre, Inga (2019). Fracture mechanics of brittle materials: fracture criteria and numerical approach. (ekstern lenke)
• Dang, Hau Trung; Berre, Inga; Keilegavlen, Eirik (2019). Numerical investigation of wing crack initiation and propagation due to shear slip. (ekstern lenke)
• Starnoni, Michele; Berre, Inga; Keilegavlen, Eirik et al. (2019). Consistent discretization of flow for inhomogeneous gravitational fields. (ekstern lenke)
• Starnoni, Michele; Berre, Inga; Nordbotten, Jan Martin et al. (2019). Challenges in Modelling the Anisotropic Poroelastoplastic Behaviour of Fractured Rocks as Homogenized Media. (ekstern lenke)
• 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. (ekstern lenke)
• Stefansson, Ivar; Berre, Inga; Fumagalli, Alessio et al. (2019). Numerical Methods for Flow in Fractured Porous Media in a Unified Implementation. (ekstern lenke)
• Halldorsdottir, Sæunn; Berre, Inga; Keilegavlen, Eirik et al. (2018). Modelling of conditions close to geothermal heat sources. (ekstern lenke)
• 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. (ekstern lenke)
• Dang, Hau Trung; Berre, Inga; Keilegavlen, Eirik (2018). Fracture propagation in porous medium under shear stimulation of fluid flow. (ekstern lenke)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik et al. (2018). Modelling of thermal shock induced fracture growth. (ekstern lenke)
• Dang, Hau Trung; Berre, Inga; Keilegavlen, Eirik (2018). Multi-fracture propagation in porous medium under shear stimulation of fluid flow. (ekstern lenke)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik et al. (2018). Viscous fingering in fractured porous media. (ekstern lenke)
• Keilegavlen, Eirik; Fumagalli, Alessio; Stefansson, Ivar et al. (2018). Unified modeling and discretization of flow in fractured porous media. (ekstern lenke)
• Berge, Runar Lie; Keilegavlen, Eirik; Fumagalli, Alessio et al. (2018). PorePy: A Python Simulation Tool for Fractured and Deformable Porous Media​. (ekstern lenke)
• Keilegavlen, Eirik; Nordbotten, Jan Martin; Boon, Wietse et al. (2018). A general framework for heterogeneous discretizations in mixed-dimensional single-phase flow. (ekstern lenke)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2018). Modeling fracture reactivation in a mixed dimensional setting​: Friction models and numerical challenges​. (ekstern lenke)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2018). Modeling fracture reactivation in a mixed dimensional setting​: Friction models and numerical challenges​. (ekstern lenke)
• Fumagalli, Alessio; Keilegavlen, Eirik; Sævik, Pål Næverlid (2017). Dual virtual element method for fractured geothermal systems. (ekstern lenke)
• Berre, Inga; Ucar, Eren; Keilegavlen, Eirik (2017). A numerical approach for simulation of shear dilation of three-dimensional fracture networks. (ekstern lenke)
• Berre, Inga; Ucar, Eren; Keilegavlen, Eirik (2017). An approach for simulation of hydraulic stimulation of a fractured geothermal reservoir. (ekstern lenke)
• Keilegavlen, Eirik; Ucar, Eren; Nordbotten, Jan Martin et al. (2017). Finite volume discretizations of poro-elasticity in high­ contrast media. (ekstern lenke)
• Keilegavlen, Eirik; Fumagalli, Alessio; Berge, Runar Lie et al. (2017). PorePy: A Python Simulation Tool for Fractured and Deformable Porous Media. (ekstern lenke)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2017). Hydraulic stimulation and friction laws for fracture deformation – a numerical study. (ekstern lenke)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2017). Hydraulic stimulation and friction laws for fracture deformation – a numerical study. (ekstern lenke)
• Berre, Inga; Ucar, Eren; Keilegavlen, Eirik (2017). Simulation of hydraulic stimulation of fractured geothermal reservoirs. (ekstern lenke)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2017). Handling of Fractures and Intersections in Finite Volume Methods. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• Keilegavlen, Eirik; Fumagalli, Alessio; Berge, Runar Lie et al. (2017). Discretization of mixed-dimensional problems using legacy codes. (ekstern lenke)
• 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. (ekstern lenke)
• Berre, Inga; Ucar, Eren; Keilegavlen, Eirik (2016). Enhanced geothermal systems – modeling of fracture response to hydraulic stimulation. (ekstern lenke)
• Nissen, Anna Maria; Pettersson, Per; Keilegavlen, Eirik et al. (2015). Incorporating Geological Uncertainty in Error Control for Linear Solvers. (ekstern lenke)
• Berre, Inga; Keilegavlen, Eirik; Ucar, Eren (2014). Mathematical modeling of permeability enhancement in geothermal reservoirs. (ekstern lenke)
• Berre, Inga; Keilegavlen, Eirik; Ucar, Eren (2014). Modeling of Permeability Enhancement in Geothermal Reservoirs by Shear-Dilation Stimulation. (ekstern lenke)
• Keilegavlen, Eirik; Mundal, Sissel; Aavatsmark, Ivar (2010). Near-well discretisations for anisotropic heterogeneous problems on flexible grids. (ekstern lenke)

Poster

• Onal, Eda; Keilegavlen, Eirik; Dahle, Helge K. et al. (2024). Coupling Strategies in Large-Scale Simulations of CO2 Storage. (ekstern lenke)
• Keilegavlen, Eirik (2023). PoroTwin: A digital FluidFlower. (ekstern lenke)
• 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. (ekstern lenke)
• Keilegavlen, Eirik (2022). WP 5 Coupling strategies and solvers for multi-model simulators. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• 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?. (ekstern lenke)
• Duboeuf, Laure; Oye, Volker; Berre, Inga et al. (2019). Automatic picking for induced seismicity in Iceland using an EAT (Empirically Aggregated Template) methodology. (ekstern lenke)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2019). Phase-field Modeling of Brittle Crack Propagation in Saturated Porous Media. (ekstern lenke)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2019). Simulation of temperature and pressure driven fracture deformation. (ekstern lenke)
• Starnoni, Michele; Berre, Inga; Keilegavlen, Eirik et al. (2018). Mixed-dimensional poroelasticity for deformable fractured porous media. (ekstern lenke)
• Duboeuf, Laure; Oye, Volker; Berre, Inga et al. (2018). Induced seismicity in a geothermal reservoir: a case study in the Reykjanes peninsula in Iceland. (ekstern lenke)
• Budisa, Ana; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2018). Efficient Linear Solvers for Mixed-dimensional Flow Problems in Fractured Porous Media. (ekstern lenke)
• Zuluaga, Luisa Fernanda; Rotevatn, Atle; Fumagalli, Alessio et al. (2018). Outcrop fracture characterization for geothermal reservoirs: challenges in optimizing inputs for reservoir models. (ekstern lenke)
• Budisa, Ana; Keilegavlen, Eirik; Nordbotten, Jan Martin et al. (2017). BDDC Preconditioner for Robust Discretization of Flow in Fractured Porous Media. (ekstern lenke)
• Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik (2017). Fracture Deformation Models in Geothermal Reservoirs. (ekstern lenke)
• Stefansson, Ivar; Keilegavlen, Eirik; Berre, Inga (2017). Coupling Conditions for Finite Volume Methods for Fractured Porous Media. (ekstern lenke)
• Stefansson, Ivar; Berre, Inga; Keilegavlen, Eirik (2017). Finite Volume Methods for Flow and Transport in 3-Dimensional Fractured Porous Media. (ekstern lenke)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2017). High-accuracy phase-field models for brittle fracture. (ekstern lenke)
• Ucar, Eren; Keilegavlen, Eirik; Berre, Inga et al. (2016). Cell centered finite volume discretization of fractured deformable porous media. (ekstern lenke)
• Sargado, Juan Michael; Keilegavlen, Eirik; Berre, Inga et al. (2015). Coupling Issues Arising from Combining Fracture Phase-Field Models with Biot Poroelasticity. (ekstern lenke)
• Ucar, Eren; Berre, Inga; Keilegavlen, Eirik et al. (2015). Modeling of Hydroshearing in Geothermal Reservoirs. (ekstern lenke)

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

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

Faglig foredrag

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

Vitenskapelig antologi/Konferanseserie

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

Doktorgradsavhandling

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

Intervju

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

Mastergradsoppgave

• 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. (ekstern lenke)
• Nedreli, Anette; Keilegavlen, Eirik; Berre, Inga (2014). Upscaling of heat-transport in complex heterogeneous media. (ekstern lenke)
• Elje, Elin Marie; Nordbotten, Jan Martin; Keilegavlen, Eirik (2010). A Multiscale Approach to Estimate Large Scale Flow and Leakage from Geological Storage. (ekstern lenke)

Populærvitenskapelig artikkel

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

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