Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory

Abstract: Guaranteeing the sealing capacity of caprocks becomes paramount as CO2 storage scales up to the gigaton scale. A significant number of laboratory experiments have been performed with samples of intact rock, showing that low-permeability and high-entry pressure caprocks have excellent seali...

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Autores: Sciandra, Dario, Kivi, Iman Rahimzadeh, Vilarrasa, Víctor, Makhnenko, Roman Y., Rebscher, Dorothee
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/281519
Acceso en línea:http://hdl.handle.net/10261/281519
https://api.elsevier.com/content/abstract/scopus_id/85139154635
Access Level:acceso abierto
Palabra clave:Transverse isotropy
Caprock integrity
Geologic carbon storage
Geomechanics
Shale
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dc.title.none.fl_str_mv Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory
title Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory
spellingShingle Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory
Sciandra, Dario
Transverse isotropy
Caprock integrity
Geologic carbon storage
Geomechanics
Shale
title_short Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory
title_full Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory
title_fullStr Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory
title_full_unstemmed Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory
title_sort Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratory
dc.creator.none.fl_str_mv Sciandra, Dario
Kivi, Iman Rahimzadeh
Vilarrasa, Víctor
Makhnenko, Roman Y.
Rebscher, Dorothee
author Sciandra, Dario
author_facet Sciandra, Dario
Kivi, Iman Rahimzadeh
Vilarrasa, Víctor
Makhnenko, Roman Y.
Rebscher, Dorothee
author_role author
author2 Kivi, Iman Rahimzadeh
Vilarrasa, Víctor
Makhnenko, Roman Y.
Rebscher, Dorothee
author2_role author
author
author
author
dc.contributor.none.fl_str_mv European Research Council
Ministerio de Ciencia e Innovación (España)
0000-0001-5988-8903
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Transverse isotropy
Caprock integrity
Geologic carbon storage
Geomechanics
Shale
topic Transverse isotropy
Caprock integrity
Geologic carbon storage
Geomechanics
Shale
description Abstract: Guaranteeing the sealing capacity of caprocks becomes paramount as CO2 storage scales up to the gigaton scale. A significant number of laboratory experiments have been performed with samples of intact rock, showing that low-permeability and high-entry pressure caprocks have excellent sealing capacities to contain CO2 deep underground. However, discontinuities, such as bedding planes, fractures and faults, affect the rock properties at the field scale, being at the same time challenging to monitor in industrial-scale applications. To bridge these two spatial scales, Underground Research Laboratories (URLs) provide a perfect setting to investigate the field-scale sealing capacity of caprocks under a well-monitored environment. In particular, the CO2 Long-term Periodic Injection Experiment (CO2LPIE) at the Mont Terri rock laboratory, Switzerland, aims at quantifying the advance of CO2 in Opalinus Clay, an anisotropic clay-rich rock with bedding planes dipping 45° at the experiment location. To assist in the design of CO2LPIE and have an initial estimate of the system response, we perform plane-strain coupled Hydro-Mechanical simulations using a linear transversely isotropic poroelastic model of periodic CO2 injection for 20 years. Simulation results show that pore pressure changes and the resulting stress variations are controlled by the anisotropic behavior of the material, producing a preferential advance along the bedding planes. CO2 cannot penetrate into Opalinus Clay due to the strong capillary effects in the nanoscale pores, but advances dissolved into the resident brine. We find that the pore pressure oscillations imposed at the injection well are attenuated within tens of cm, requiring a close location of the monitoring boreholes with respect to the injection interval to observe the periodic signal. Article highlights: Underground rock laboratory experiments permit examining the caprock sealing capacity at a representative scale for CO2 storage;We perform coupled transverse isotropic hydro-mechanical simulations to gain insight on the response of shaly rock to CO2 periodic injection;Simulation results assist in the design of the injection amplitude and period and monitoring of the long-term periodic CO2 injection experiment.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/281519
https://api.elsevier.com/content/abstract/scopus_id/85139154635
url http://hdl.handle.net/10261/281519
https://api.elsevier.com/content/abstract/scopus_id/85139154635
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
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info:eu-repo/grantAgreement/EC/H2020/801809
info:eu-repo/grantAgreement/MCIN/AEI/10.13039
Geomechanics and Geophysics for Geo-Energy and Geo-Resources
https://doi.org/10.1007/s40948-022-00442-x
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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spelling Hydro-mechanical response of opalinus clay in the CO<inf>2</inf> long-term periodic injection experiment (CO<inf>2</inf>LPIE) at the Mont Terri rock laboratorySciandra, DarioKivi, Iman RahimzadehVilarrasa, VíctorMakhnenko, Roman Y.Rebscher, DorotheeTransverse isotropyCaprock integrityGeologic carbon storageGeomechanicsShaleAbstract: Guaranteeing the sealing capacity of caprocks becomes paramount as CO2 storage scales up to the gigaton scale. A significant number of laboratory experiments have been performed with samples of intact rock, showing that low-permeability and high-entry pressure caprocks have excellent sealing capacities to contain CO2 deep underground. However, discontinuities, such as bedding planes, fractures and faults, affect the rock properties at the field scale, being at the same time challenging to monitor in industrial-scale applications. To bridge these two spatial scales, Underground Research Laboratories (URLs) provide a perfect setting to investigate the field-scale sealing capacity of caprocks under a well-monitored environment. In particular, the CO2 Long-term Periodic Injection Experiment (CO2LPIE) at the Mont Terri rock laboratory, Switzerland, aims at quantifying the advance of CO2 in Opalinus Clay, an anisotropic clay-rich rock with bedding planes dipping 45° at the experiment location. To assist in the design of CO2LPIE and have an initial estimate of the system response, we perform plane-strain coupled Hydro-Mechanical simulations using a linear transversely isotropic poroelastic model of periodic CO2 injection for 20 years. Simulation results show that pore pressure changes and the resulting stress variations are controlled by the anisotropic behavior of the material, producing a preferential advance along the bedding planes. CO2 cannot penetrate into Opalinus Clay due to the strong capillary effects in the nanoscale pores, but advances dissolved into the resident brine. We find that the pore pressure oscillations imposed at the injection well are attenuated within tens of cm, requiring a close location of the monitoring boreholes with respect to the injection interval to observe the periodic signal. Article highlights: Underground rock laboratory experiments permit examining the caprock sealing capacity at a representative scale for CO2 storage;We perform coupled transverse isotropic hydro-mechanical simulations to gain insight on the response of shaly rock to CO2 periodic injection;Simulation results assist in the design of the injection amplitude and period and monitoring of the long-term periodic CO2 injection experiment.D.S., I.R.K. and V.V. acknowledge funding from the European Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation Program through the Starting Grant GEoREST (www.georest.eu) under Grant agreement No. 801809. I.R.K. also acknowledges support by the PCI2021-122077-2B project (www.easygeocarbon.com) funded by MCIN/AEI/10.13039/501100011033 and the European Union NextGenerationEU/PRTR. IDAEA-CSIC is a Centre of Excellence Severo Ochoa (Spanish Ministry of Science and Innovation, Grant CEX2018-000794-S, funded by MCIN/AEI/10.13039/501100011033 ). The authors would like to thank swisstopo and the Mont Terri Consortium for their comprehensive information and very valuable discussions. R.Y.M. acknowledges the support from US DOE through Carbon SAFE Illinois Corridor Project DE-FE0031892.Peer reviewedSpringer NatureEuropean Research CouncilMinisterio de Ciencia e Innovación (España)0000-0001-5988-8903Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/281519https://api.elsevier.com/content/abstract/scopus_id/85139154635reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/801809info:eu-repo/grantAgreement/MCIN/AEI/10.13039Geomechanics and Geophysics for Geo-Energy and Geo-Resourceshttps://doi.org/10.1007/s40948-022-00442-xSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2815192026-05-22T06:33:51Z
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