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Polytopal discretisation of a quasi-dynamic poromechanical induced seismicity model
1 : Laboratoire Jean Alexandre Dieudonné
(LJAD)
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Site web
Université Nice Sophia Antipolis (1965 - 2019), Centre National de la Recherche Scientifique, Université Côte d'Azur
Université Côte d'Azur U.M.R. no 7351 du C.N.R.S. Parc Valrose 06108 Nice Cedex 02 France -
France
2 : Géoazur
(GEOAZUR 7329)
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Site web
Institut National des Sciences de l'Univers, Observatoire de la Cote d'Azur, Université Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Recherche pour le Développement
250 rue Albert Einstein, Sophia Antipolis 06560 VALBONNE -
France
This work addresses the polytopal discretisation of an induced seismicity model accounting for fault
reactivation and slip driven by subsurface fluid injection. The model couples single-phase Darcy flow
in both the porous matrix and the fault network with a poroelastic mechanical response in the bulk and
fault slip governed by a rate-and-state friction law. The contact mechanics problem is discretised using
the Virtual Element Method with bubble stabilisation of the Lagrange multiplier. It is combined with a
Hybrid Finite Volume scheme for the mixed-dimensional Darcy flow model.
