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Aquifer-CO2 leak project : Physicochemical characterization of the CO2 leakage impact on a carbonate shallow freshwater aquifer

hal.structure.identifierGéoressources et environnement
dc.contributor.authorPETIT, Anélia
hal.structure.identifierGéoressources et environnement
dc.contributor.authorCEREPI, Adrian
hal.structure.identifierGéoressources et environnement
dc.contributor.authorLOISY, Corinne
hal.structure.identifierGéoressources et environnement
dc.contributor.authorLE ROUX, Olivier
hal.structure.identifierGéoressources et environnement
dc.contributor.authorROSSI, Léna
hal.structure.identifierIFP Energies nouvelles [IFPEN]
dc.contributor.authorESTUBLIER, Audrey
hal.structure.identifierIRIS Instruments
dc.contributor.authorGANCE, Julien
hal.structure.identifierIFP Energies nouvelles [IFPEN]
dc.contributor.authorGARCIA, Bruno
hal.structure.identifierGLINCS SAS
dc.contributor.authorHAUTEFEUILLE, Benoit
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorLAVIELLE, Bernard
hal.structure.identifierGLINCS SAS
dc.contributor.authorBRICHART, Thomas
hal.structure.identifierIFP Energies nouvelles [IFPEN]
dc.contributor.authorNOIREZ, Sonia
hal.structure.identifierIFP Energies nouvelles [IFPEN]
dc.contributor.authorMARTIN, Frédéric
hal.structure.identifierIRIS Instruments
dc.contributor.authorTEXIER, Benoit
hal.structure.identifierGéoressources et environnement
dc.contributor.authorKENNEDY, Sean
hal.structure.identifierAgence de l'Environnement et de la Maîtrise de l'Énergie [ADEME]
dc.contributor.authorEL KHAMLICHI, Aïcha
dc.date.created2020-05-22
dc.date.issued2021-03
dc.identifier.issn1750-5836
dc.description.abstractEnThis work is part of the Aquifer CO2-Leak project and aims to understand, quantify and model the environmental impact of a CO2 leak on water quality in the carbonate freshwater aquifer as well as CO2-water-carbonate interactions. The experiment has been performed within an Oligocene carbonate underground quarry located in Saint-Emilion (France).A water charged with dissolved CO2 was injected in the aquifer through a borehole. Downstream, seven wells were fitted with in-situ probes which automatically measured physicochemical parameters. Periodic water samplings in all wells have been undertaken to determine the elemental concentrations by ion chromatography.The spread of CO2 in the groundwater was monitored as a function of time and was observed to influence the various physicochemical parameters. Five parameters seem to be excellent indicators for monitoring a gas plume during CO2 geological storage in regard to our results: electrical conductivity and pH, and Ca2+, HCO3−, and CO2(aq) concentrations.The interaction between CO2 and limestone is highlighted by a saturation index (SI) calculated with PhreeqC software. It shows (i) a slight trend to dissolution of calcite in the injection well (SI < 0) linked to the reaction process between CO2-H2O-CaCO3 and (ii) a transport process via diffusion for the observation wells with a SI≃0.The evolution of physicogeochemical signatures in the aquifer allows us to understand the reactive and transport processes that occur during the migration of a gasified water plume in the context of leakage from a geological storage reservoir. Our results will make possible to model a leakage in a complex natural reservoir.
dc.language.isoen
dc.publisherElsevier
dc.subject.enCO2-rock-water interactions
dc.subject.enShallow carbonate freshwater aquifer
dc.subject.enCO2 leakage monitoring
dc.subject.enfield experiment
dc.subject.enCO2 geological storage
dc.title.enAquifer-CO2 leak project : Physicochemical characterization of the CO2 leakage impact on a carbonate shallow freshwater aquifer
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ijggc.2020.103231
dc.subject.halSciences de l'environnement/Milieux et Changements globaux
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre
bordeaux.journalInternational Journal of Greenhouse Gas Control
bordeaux.page103231
bordeaux.volume106
bordeaux.peerReviewedoui
hal.identifierhal-03159937
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03159937v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=International%20Journal%20of%20Greenhouse%20Gas%20Control&amp;rft.date=2021-03&amp;rft.volume=106&amp;rft.spage=103231&amp;rft.epage=103231&amp;rft.eissn=1750-5836&amp;rft.issn=1750-5836&amp;rft.au=PETIT,%20An%C3%A9lia&amp;CEREPI,%20Adrian&amp;LOISY,%20Corinne&amp;LE%20ROUX,%20Olivier&amp;ROSSI,%20L%C3%A9na&amp;rft.genre=article


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