Further insights on the role of aseismic slip in hydraulic fracturing-induced seismicity

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2020Further insights on the role of aseismic slip in hydraulic fracturing-induced seismicityAuthors: Thomas EyreDavid EatonMegan ZecevicMarco VenieriRonald WeirDonald LawtonDmitry GaragashThomas EyreUniversity of CalgarySearch for more papers by this author, David EatonUniversity of CalgarySearch for more papers by this author, Megan ZecevicUniversity of CalgarySearch for more papers by this author, Marco VenieriUniversity of CalgarySearch for more papers by this author, Ronald WeirUniversity of CalgarySearch for more papers by this author, Donald LawtonUniversity of CalgarySearch for more papers by this author, and Dmitry GaragashDalhousie UniversitySearch for more papers by this authorhttps://doi.org/10.1190/segam2020-3421625.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractEarthquakes induced by hydraulic fracturing are typically believed to be caused by elevated pore pressure or increased shear stress. However, according to a recent study, these mechanisms are incompatible with experiments and rate-state frictional models that predict stable sliding (aseismic slip) for faults with high clay content or total organic carbon, as well as observations of the timings and locations of the seismicity. An alternative model was therefore proposed, in which distal, unstable regions of a fault are loaded by aseismic slip on stable regions of the fault stimulated by hydraulic fracturing. This model has significant implications in terms of mitigating induced seismicity, as it suggests that there may be a potentially measurable deformation signal tens of hours before earthquake nucleation. However, the conclusions of that study were based on a relatively small number of events from a small local broadband network. In this study we integrate a high-resolution microseismic dataset from the same treatment with that previous work, and demonstrate that the microseismic data provides an even more compelling case that aseismic slip plays a role in induced seismicity.Presentation Date: Monday, October 12, 2020Session Start Time: 1:50 PMPresentation Time: 2:15 PMLocation: 360APresentation Type: OralKeywords: induced seismicity, Canada, earthquake, hydraulic fracturing, microseismicPermalink: https://doi.org/10.1190/segam2020-3421625.1FiguresReferencesRelatedDetailsCited byNumerical modeling of low-frequency distributed acoustic sensing signals for mixed-mode fracture activationChaoyi Wang, David W. Eaton, and Yuanyuan Ma15 August 2022 SEG Technical Program Expanded Abstracts 2020ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2020 Pages: 3887 publication data© 2020 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 30 Sep 2020 CITATION INFORMATION Thomas Eyre, David Eaton, Megan Zecevic, Marco Venieri, Ronald Weir, Donald Lawton, and Dmitry Garagash, (2020), "Further insights on the role of aseismic slip in hydraulic fracturing-induced seismicity," SEG Technical Program Expanded Abstracts : 1299-1303. https://doi.org/10.1190/segam2020-3421625.1 Plain-Language Summary Keywordsinduced seismicityCanadaearthquakehydraulic fracturingmicroseismicPDF DownloadLoading ...