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Publication . Article . 2019

Energy of injection-induced seismicity predicted from in-situ experiments

Louis De Barros; Frédéric Cappa; Yves Guglielmi; Laure Duboeuf; Jean-Robert Grasso;
Open Access
English
Published: 01 Dec 2019
Publisher: HAL CCSD
Abstract
International audience; The ability to predict the magnitude of an earthquake caused by deep fluid injections is an important factor for assessing the safety of the reservoir storage and the seismic hazard. Here, we propose a new approach to evaluate the seismic energy released during fluid injection by integrating injection parameters, induced aseismic deformation, and the distance of earthquake sources from injection. We use data from ten injection experiments performed at a decameter scale into fault zones in limestone and shale formations. We observe that the seismic energy and the hydraulic energy similarly depend on the injected fluid volume (V), as they both scale as V3/2. They show, however, a large discrepancy, partly related to a large aseismic deformation. Therefore, to accurately predict the released seismic energy, aseismic deformation should be considered in the budget through the residual deformation measured at the injection. Alternatively, the minimal hypocentral distance from injection points and the critical fluid pressure for fault reactivation can be used for a better prediction of the seismic moment in the total compilation of earthquakes observed during these experiments. Complementary to the prediction based only on the injected fluid volume, our approach opens the possibility of using alternative monitoring parameters to improve traffic-light protocols for induced earthquakes and the regulation of operational injection activities.
Subjects by Vocabulary

Library of Congress Subject Headings: lcsh:Medicine lcsh:R lcsh:Science lcsh:Q

Microsoft Academic Graph classification: Geology Seismology Energy (signal processing) Seismic moment Seismic hazard Scale (ratio) Fault (geology) geography.geographical_feature_category geography Induced seismicity Magnitude (mathematics) Deformation (meteorology)

Subjects

[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, Biochemistry and Cell Biology, Other Physical Sciences, Article, Affordable and Clean Energy, Multidisciplinary

Funded by
EC| EPOS IP
Project
EPOS IP
EPOS Implementation Phase
  • Funder: European Commission (EC)
  • Project Code: 676564
  • Funding stream: H2020 | RIA
Validated by funder
,
ANR| HYDROSEIS
Project
HYDROSEIS
Role of fluids and fault hydromechanics on seismic rupture
  • Funder: French National Research Agency (ANR) (ANR)
  • Project Code: ANR-13-JS06-0004
,
EC| SERA
Project
SERA
Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe
  • Funder: European Commission (EC)
  • Project Code: 730900
  • Funding stream: H2020 | RIA
Related to Research communities
EPOS
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Scientific Reports
Article . 2019
Providers: PubMed Central
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