Complex 3D Migration and Delayed Triggering of Hydraulic Fracturing-Induced Seismicity: A Case Study Near Fox Creek, Alberta

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dc.contributor.authorGao, Dawei
dc.contributor.authorKao, Honn
dc.contributor.authorWang, Bei
dc.contributor.authorVisser, Ryan
dc.contributor.authorSchultz, Ryan
dc.contributor.authorHarrington, Rebecca M.
dc.date.accessioned2022-03-04T17:51:44Z
dc.date.available2022-03-04T17:51:44Z
dc.date.copyright2022en_US
dc.date.issued2022-01-28
dc.descriptionWe thank Editor-in-Chief Harihar Rajaram, Mirko van der Baan, and two anonymous reviewers for their constructive comments. Insightful discussions with Fengzhou Tan, Ramin Mohammad Hosseini Dokht, Yajing Liu, and Stan Dosso are much appreciated.en_US
dc.description.abstractEarthquakes resulting from hydraulic fracturing (HF) can have delayed triggering relative to injection commencement over a varied range of time scales, with the majority of M ≥ 4 mainshocks occurring near/after well completion. This poses serious challenges for risk mitigation and hazard assessment. Here, we document a high-resolution, three-dimensional source migration process with delayed mainshock triggering that is controlled by local hydrogeological conditions near Fox Creek, Alberta, Canada. Our results reveal that poroelastic effects might contribute to induced seismicity, but are probably insufficient to activate a large fault segment not critically stressed. The rapid pore-pressure build-up from HF can be very localized and capable of producing large, felt earthquakes if adequate hydrological paths exist. We interpret the delayed triggering as a manifestation of pore-pressure build-up along pre-existing faults needed to facilitate seismic failure. Our findings can explain why so few injection operations are seismogenic.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipEnvironmental Geoscience Program, Natural Resources Canada Geoscience BC. Grant Number: 2019-007a Gouvernement du Canada, Natural Sciences and Engineering Research Council of Canada (NSERC). Grant Number: RGPIN-2019-04148 University of Victoria Fellowshipen_US
dc.identifier.citationGao, D., Kao, H., Wang, B., Visser, R., Schultz, R., & Harrington, R. M. (2022). Complex 3D migration and delayed triggering of hydraulic fracturing-induced seismicity: A case study near Fox Creek, Alberta. Geophysical Research Letters, (49)2. https://doi.org/10.1029/2021GL093979en_US
dc.identifier.urihttps://doi.org/10.1029/2021GL093979
dc.identifier.urihttp://hdl.handle.net/1828/13770
dc.language.isoenen_US
dc.publisherGeophysical Research Lettersen_US
dc.subjectinjection-induced earthquakes
dc.subjecthydraulic fracturing
dc.subjectdelayed triggering
dc.subjectporoelastic modeling
dc.subject.departmentSchool of Earth and Ocean Sciences
dc.titleComplex 3D Migration and Delayed Triggering of Hydraulic Fracturing-Induced Seismicity: A Case Study Near Fox Creek, Albertaen_US
dc.typeArticleen_US

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