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Reactivation of fractures in subsurface reservoirs - A numerical approach using a static-dynamic friction model

Berge, Runar Lie; Berre, Inga; Keilegavlen, Eirik
Chapter, Peer reviewed, Journal article
Accepted version
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https://hdl.handle.net/1956/23471
Utgivelsesdato
2019
Metadata
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Samlinger
  • Department of Mathematics [803]
Originalversjon
https://doi.org/10.1007/978-3-319-96415-7_60
Sammendrag
Fluid-induced slip of fractures is characterized by strong multiphysics couplings. Three physical processes are considered: Flow, rock deformation and fracture deformation. The fractures are represented as lower-dimensional objects embedded in a three-dimensional domain. Fluid is modeled as slightly compressible, and flow in both fractures and matrix is accounted for. The deformation of rock is inherently different from the deformation of fractures; thus, two different models are needed to describe the mechanical deformation of the rock. The medium surrounding the fractures is modeled as a linear elastic material, while the slip of fractures is modeled as a contact problem, governed by a static-dynamic friction model. We present an iterative scheme for solving the non-linear set of equations that arise from the models, and suggest how the step parameter in this scheme should depend on the shear modulus and mesh size.
Utgiver
Springer
Tidsskrift
Lecture Notes in Computational Science and Engineering
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Copyright 2019 Springer

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