Print Email Facebook Twitter Fault intersection and induced seismicity Title Fault intersection and induced seismicity: the effects on the induced stress field and the dynamic rupture, and their implications Author Ruan, J. (TU Delft Applied Geophysics and Petrophysics) Ghose, R. (TU Delft Applied Geophysics and Petrophysics) Mulder, W.A. (TU Delft Applied Geophysics and Petrophysics) Date 2023 Abstract Intersecting faults are often ignored in the geomechanical simulation of induced seismicity. To investigate the effects of fault intersection and the resulting reservoir geometry on induced seismicity, caused, for instance, by gas extraction, we have developed 3D geomechanical models considering two intersecting normal faults and the surrounding horst structure. We simulate the stress field and the dynamic fault reactivation in a uniformly depleted reservoir. We observe that a smaller intersection angle increases the incremental Coulomb stress at the lower reservoir juxtaposition, thus changing the temporal rupture pattern of the seismic event. In our dynamic simulation, the rupture propagates from the main fault to the secondary fault. We conclude that the fault intersection has important effects on the induced seismicity and should be taken into account when evaluating the seismicity risk in a specific region. Subject geomechanical modellingfault intersectioninduced seismictyGroningen gas fieldseismic source To reference this document use: http://resolver.tudelft.nl/uuid:97f2a3cb-f727-4d61-9f73-d30187887f8c DOI https://doi.org/10.1190/image2023-3910524.1 Publisher Society of Exploration Geophysicists Embargo date 2024-03-01 Source Third International Meeting for Applied Geoscience & Energy Expanded Abstracts, 2023-August Event 3rd International Meeting for Applied Geoscience and Energy, IMAGE 2023, 2023-08-28 → 2023-09-01, Houston, United States Series SEG Technical Program Expanded Abstracts, 1052-3812 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2023 J. Ruan, R. Ghose, W.A. Mulder Files PDF Jruan_IMAGE2023.pdf 5.43 MB Close viewer /islandora/object/uuid:97f2a3cb-f727-4d61-9f73-d30187887f8c/datastream/OBJ/view