293 citations · 1k across the 45 of their papers we have counts for
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Numerical modelling of convection-driven cooling, deformation and fracturing of thermo-poroelastic media
Ivar Stefansson, Eirik Keilegavlen, Sæunn Halldórsdóttir +1
Convection-driven cooling in porous media influences thermo-poro-mechanical stresses, thereby causing deformation. These processes are strongly influenced by the presence of fractu…
Hydro-mechanical simulation and analysis of induced seismicity for a hydraulic stimulation test at the Reykjanes geothermal field, Iceland
Eirik Keilegavlen, Laure Duboeuf, Anna Maria Dichiarante +8
The hydraulic stimulation of the well RN-34 at the Reykjanes geothermal field in Iceland caused increased seismic activity near the well. Here, we use this as a case study for inve…
Fault slip in hydraulic stimulation of geothermal reservoirs: governing mechanisms and process-structure interaction
Inga Berre, Ivar Stefansson, Eirik Keilegavlen
Hydraulic stimulation of geothermal reservoirs in low-permeability basement and crystalline igneous rock can enhance permeability by reactivation and shear dilation of existing fra…
A fully coupled numerical model of thermo-hydro-mechanical processes and fracture contact mechanics in porous media
Ivar Stefansson, Inga Berre, Eirik Keilegavlen
A range of phenomena in the subsurface is characterised by the interplay between coupled thermal, hydraulic and mechanical processes and deforming structures such as fractures. Mod…
Numerical modeling of wing crack propagation accounting for fracture contact mechanics
Hau Dang-Trung, Eirik Keilegavlen, Inga Berre
As a consequence of shearing, wing cracks can emerge from pre-existing fractures. The process involves the interaction of sliding of the existing fracture surfaces and the tensile…
Verification benchmarks for single-phase flow in three-dimensional fractured porous media
Inga Berre, Wietse M. Boon, Bernd Flemisch +23
Flow in fractured porous media occurs in the earth's subsurface, in biological tissues, and in man-made materials. Fractures have a dominating influence on flow processes, and the…
Finite volume discretisation of fracture deformation in thermo-poroelastic media
Ivar Stefansson, Inga Berre, Eirik Keilegavlen
This paper presents a model where thermo-hydro-mechanical processes are coupled to a deformation model for preexisting fractures. The model is formulated within a discrete-fracture…