Induced seismicity modelling for geothermal energy production
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During geothermal energy production, pressure and temperature reservoir temperature change due to colder fluid injection. These changes affects the stress state and might trigger fault reactivation in naturally faulted reservoirs. In this study, the capabilities of the Delft Advanced Research Terra Simulator (DARTS) framework have been extended to account for the thermoelastic response relevant to geothermal applications. Finite volume method used for the discretization of mass, energy and momentum balance equations. The fault slippage is calculated using Mohr-Coulomb friction criteria. The developed model has been applied to heterogeneous geothermal field to evaluate how energy production and thermal front might affect its the geomechanical state and trigger induced seismicity.
