Grzegorz Kwiatek, Tero Saarno, Thomas Ader, Felix Blümle, Marco Bohnhoff, Michael Chendorain, Georg Dresen, Pekka Heikkinen, Ilmo Kukkonen, Peter Leary, Maria Leonhardt, Peter Malin, Patricia Martinez-Garzon, Kevin Passmore, Paul Passmore, Sergio Valenzuela, Christopher Wollin
- We show that near-real-time seismic monitoring of fluid injection allowed control of induced earthquakes during the stimulation of a 6.1-km-deep geothermal well near Helsinki, Finland. A total of 18,160 m(3) of fresh water was pumped into crystalline rocks over 49 days in June to July 2018. Seismic monitoring was performed with a 24-station borehole seismometer network. Using near-real-time information on induced-earthquake rates, locations, magnitudes, and evolution of seismic and hydraulic energy, pumping was either stopped or varied-in the latter case, between well-head pressures of 60 and 90 MPa and flow rates of 400 and 800 liters/min. This procedure avoided the nucleation of a project-stopping magnitude M-W 2.0 induced earthquake, a limit set by local authorities. Our results suggest a possible physics-based approach to controlling stimulation-induced seismicity in geothermal projects.
MetadatenVerfasserangaben: | Grzegorz KwiatekORCiD, Tero SaarnoORCiD, Thomas Ader, Felix BlümleORCiD, Marco BohnhoffORCiDGND, Michael ChendorainORCiD, Georg DresenORCiDGND, Pekka Heikkinen, Ilmo KukkonenORCiD, Peter LearyORCiD, Maria LeonhardtORCiD, Peter MalinORCiD, Patricia Martinez-GarzonORCiDGND, Kevin Passmore, Paul PassmoreORCiD, Sergio ValenzuelaORCiD, Christopher WollinORCiD |
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DOI: | https://doi.org/10.1126/sciadv.aav7224 |
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ISSN: | 2375-2548 |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/31049397 |
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Titel des übergeordneten Werks (Englisch): | Science Advances |
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Verlag: | American Association for the Advancement of Science |
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Verlagsort: | Washington |
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Publikationstyp: | Wissenschaftlicher Artikel |
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Sprache: | Englisch |
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Datum der Erstveröffentlichung: | 01.05.2019 |
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Erscheinungsjahr: | 2019 |
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Datum der Freischaltung: | 25.02.2021 |
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Band: | 5 |
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Ausgabe: | 5 |
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Seitenanzahl: | 11 |
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Fördernde Institution: | DFGGerman Research Foundation (DFG) [KW 84/4-1]; Helmholtz AssociationHelmholtz Association |
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Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften |
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Peer Review: | Referiert |
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Publikationsweg: | Open Access / Gold Open-Access |
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| DOAJ gelistet |
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Lizenz (Deutsch): | CC-BY-NC - Namensnennung, nicht kommerziell 4.0 International |
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