Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model

Hydraulic stimulation in Enhanced Geothermal Systems (EGS) produces low-magnitude induced seismicity that sometimes can result in damage at the Earth's surface. Numerical simulations taking into account the hydrothermo- mechanic behaviour of geological reservoirs are an essential tool in order...

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Authors: Piris, G., Griera i Artigas, Albert, Gómez Rivas, Enrique, Herms, I, Goula Suriñach, Xavier
Format: article
Status:Published version
Publication Date:2016
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/162634
Online Access:https://hdl.handle.net/2445/162634
Access Level:Open access
Keyword:Sismologia
Energia geotèrmica
Seismology
Geothermal resources
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spelling Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction modelPiris, G.Griera i Artigas, AlbertGómez Rivas, EnriqueHerms, IGoula Suriñach, XavierSismologiaEnergia geotèrmicaSeismologyGeothermal resourcesHydraulic stimulation in Enhanced Geothermal Systems (EGS) produces low-magnitude induced seismicity that sometimes can result in damage at the Earth's surface. Numerical simulations taking into account the hydrothermo- mechanic behaviour of geological reservoirs are an essential tool in order to evaluate and forecast induced seismicity in such systems. In this study, the numerical code CFRAC is used to evaluate the seismicity of an isolated fault during fluid injection using two different frictional models: (i) rate-and-state and (ii) velocity weakening. The results show that both models predict similar microseismicity, although there are differences in the number of events and their magnitudes between both models.Sociedad Geológica de España2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/162634Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: http://www.sociedadgeologica.es/archivos/GEO_TEMAS/Geo_temas16_ss_tematicas.pdfGeo-Temas, 2016, vol. 16, num. 1, p. 949-952(c) Sociedad Geológica de España, 2016info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1626342026-05-27T06:46:51Z
dc.title.none.fl_str_mv Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model
title Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model
spellingShingle Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model
Piris, G.
Sismologia
Energia geotèrmica
Seismology
Geothermal resources
title_short Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model
title_full Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model
title_fullStr Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model
title_full_unstemmed Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model
title_sort Induced seismicity in enhanced geothermal systems: a numerical investigation on the influence of the friction model
dc.creator.none.fl_str_mv Piris, G.
Griera i Artigas, Albert
Gómez Rivas, Enrique
Herms, I
Goula Suriñach, Xavier
author Piris, G.
author_facet Piris, G.
Griera i Artigas, Albert
Gómez Rivas, Enrique
Herms, I
Goula Suriñach, Xavier
author_role author
author2 Griera i Artigas, Albert
Gómez Rivas, Enrique
Herms, I
Goula Suriñach, Xavier
author2_role author
author
author
author
dc.subject.none.fl_str_mv Sismologia
Energia geotèrmica
Seismology
Geothermal resources
topic Sismologia
Energia geotèrmica
Seismology
Geothermal resources
description Hydraulic stimulation in Enhanced Geothermal Systems (EGS) produces low-magnitude induced seismicity that sometimes can result in damage at the Earth's surface. Numerical simulations taking into account the hydrothermo- mechanic behaviour of geological reservoirs are an essential tool in order to evaluate and forecast induced seismicity in such systems. In this study, the numerical code CFRAC is used to evaluate the seismicity of an isolated fault during fluid injection using two different frictional models: (i) rate-and-state and (ii) velocity weakening. The results show that both models predict similar microseismicity, although there are differences in the number of events and their magnitudes between both models.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/162634
url https://hdl.handle.net/2445/162634
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: http://www.sociedadgeologica.es/archivos/GEO_TEMAS/Geo_temas16_ss_tematicas.pdf
Geo-Temas, 2016, vol. 16, num. 1, p. 949-952
dc.rights.none.fl_str_mv (c) Sociedad Geológica de España, 2016
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Sociedad Geológica de España, 2016
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica de España
publisher.none.fl_str_mv Sociedad Geológica de España
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,228081

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