Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)

In remote northern regions, lacking deep geothermal exploratory boreholes, a theoretical approach to provide a first-order estimate of the stress regime seems a useful tool. Literature data was used in this context to evaluate the orientation of the stress components and empirical relationships were...

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Main Authors: Miranda, Mafalda M., Raymond, Jasmin, Dezayes, Chrystel
Format: Article
Language:English
Published: Académie des sciences 2023-02-01
Series:Comptes Rendus. Géoscience
Subjects:
Online Access:https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.193/
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author Miranda, Mafalda M.
Raymond, Jasmin
Dezayes, Chrystel
author_facet Miranda, Mafalda M.
Raymond, Jasmin
Dezayes, Chrystel
author_sort Miranda, Mafalda M.
collection DOAJ
description In remote northern regions, lacking deep geothermal exploratory boreholes, a theoretical approach to provide a first-order estimate of the stress regime seems a useful tool. Literature data was used in this context to evaluate the orientation of the stress components and empirical relationships were applied to calculate their magnitude in a community of Nunavik, northern Quebec. A Monte Carlo-based sensitivity analysis was carried out due to the uncertainty of the input parameters. Mohr–Coulomb friction and slip tendency analyses were additionally undertaken to assess the stress state and potential reactivation of existing fractures. The results highlight how the poor knowledge of the stress field has an important impact on the design and development of engineered geothermal energy systems in the Canadian off-grid community of Kuujjuaq.
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series Comptes Rendus. Géoscience
spelling doaj-art-98e5bd89e19d40f58179a07a108938302025-02-07T10:39:55ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252023-02-01355G18510810.5802/crgeos.19310.5802/crgeos.193Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)Miranda, Mafalda M.0https://orcid.org/0000-0001-7478-3827Raymond, Jasmin1https://orcid.org/0000-0002-7486-9185Dezayes, Chrystel2https://orcid.org/0000-0001-7813-359XINRS—Institute national de la recherche scientifique, 490, rue de la Couronne Québec (QC) G1K 9A9, CanadaINRS—Institute national de la recherche scientifique, 490, rue de la Couronne Québec (QC) G1K 9A9, CanadaBRGM, 3 avenue Claude Guillemin, BP 36009, 45060, Orléans Cedex 2, FranceIn remote northern regions, lacking deep geothermal exploratory boreholes, a theoretical approach to provide a first-order estimate of the stress regime seems a useful tool. Literature data was used in this context to evaluate the orientation of the stress components and empirical relationships were applied to calculate their magnitude in a community of Nunavik, northern Quebec. A Monte Carlo-based sensitivity analysis was carried out due to the uncertainty of the input parameters. Mohr–Coulomb friction and slip tendency analyses were additionally undertaken to assess the stress state and potential reactivation of existing fractures. The results highlight how the poor knowledge of the stress field has an important impact on the design and development of engineered geothermal energy systems in the Canadian off-grid community of Kuujjuaq.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.193/Stress regimeMohr–Coulomb criterionSlip tendencyFluid overpressureGeothermal energyNunavik
spellingShingle Miranda, Mafalda M.
Raymond, Jasmin
Dezayes, Chrystel
Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)
Comptes Rendus. Géoscience
Stress regime
Mohr–Coulomb criterion
Slip tendency
Fluid overpressure
Geothermal energy
Nunavik
title Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)
title_full Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)
title_fullStr Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)
title_full_unstemmed Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)
title_short Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)
title_sort estimating theoretical stress regime for engineered geothermal energy systems in an arctic community kuujjuaq canada
topic Stress regime
Mohr–Coulomb criterion
Slip tendency
Fluid overpressure
Geothermal energy
Nunavik
url https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.193/
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AT dezayeschrystel estimatingtheoreticalstressregimeforengineeredgeothermalenergysystemsinanarcticcommunitykuujjuaqcanada