Physicochemical behavior and impact of CO2 and CH4 plumes during gas-rich water leakage in a shallow carbonate freshwater aquifer
| dc.rights.license | open | en_US |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | SEGURA, David | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | CEREPI, Adrian | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | LOISY, Corinne
IDREF: 155424866 | |
| hal.structure.identifier | IFP Energies nouvelles [IFPEN] | |
| dc.contributor.author | GUÉLARD, Julia | |
| hal.structure.identifier | IFP Energies nouvelles [IFPEN] | |
| dc.contributor.author | NOIREZ, Sonia | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | PATRIGEON, Caroline | |
| hal.structure.identifier | IFP Energies nouvelles [IFPEN] | |
| dc.contributor.author | GARCIA, Bruno | |
| dc.date.accessioned | 2025-03-31T12:45:15Z | |
| dc.date.available | 2025-03-31T12:45:15Z | |
| dc.date.issued | 2024-10 | |
| dc.identifier.issn | 0883-2927 | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/205837 | |
| dc.description.abstractEn | Carbon capture and storage (CCS) is a promising technology for reducing CO2 emissions. Significant concerns have emerged about the potential leakage of CO2 into shallow aquifers, highlighting the risk to water quality and environmental safety. This underscores the importance of finding monitoring tools suitable for different geological scenarios. If leakage occurs in the context of depleted reservoirs being used for CO2 storage, residual CH4 from the storage complex will likely be entrained together with CO2. However, few studies have addressed the implications of CH4 presence and its potential as a monitoring parameter during CO2 leakage.To address this gap, we simulated a leakage event by injecting water enriched with CO2 and CH4 into a shallow limestone aquifer. The impact of the injection was monitored using a combination of laboratory measurements on water samples and in-situ sensors located downstream from the injection well.All parameters were affected by the simulated leakage. Some monitoring tools allowed us to differentiate the leakage event from natural variations. A key finding of this study was that at 7 m from the injection well, the CH4 breakthrough occurred roughly one day before the CO2 breakthrough, highlighting the potential of CH4 as an early indicator of CO2 leakage and suggesting interesting prospectives for industrial-scale sites. However, further research is needed to confirm the potential of CH4 as a CO2 leakage indicator at industrial scales, due to potential methane oxidation and loss of the signal with longer times and distances.This study contributes to a better understanding of the potential risks and effective monitoring strategies associated with CO2-CH4 leakage in carbonate aquifers. | |
| dc.language.iso | EN | en_US |
| dc.subject.en | Leakage detection | |
| dc.subject.en | Aquifer contamination | |
| dc.subject.en | Monitoring | |
| dc.subject.en | Water-rock interactions | |
| dc.subject.en | Carbon capture and storage (CCS) | |
| dc.subject.en | Methane | |
| dc.subject.en | Carbon dioxide | |
| dc.subject.en | Shallow aquifers | |
| dc.title.en | Physicochemical behavior and impact of CO2 and CH4 plumes during gas-rich water leakage in a shallow carbonate freshwater aquifer | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.apgeochem.2024.106122 | en_US |
| dc.subject.hal | Sciences de l'environnement/Ingénierie de l'environnement | en_US |
| bordeaux.journal | Applied Geochemistry | en_US |
| bordeaux.page | 106122 | en_US |
| bordeaux.volume | 172 | en_US |
| bordeaux.hal.laboratories | EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.team | GEOLSED | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.import.source | hal | |
| hal.identifier | hal-04920905 | |
| hal.version | 1 | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| workflow.import.source | hal | |
| dc.rights.cc | Pas de Licence CC | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied%20Geochemistry&rft.date=2024-10&rft.volume=172&rft.spage=106122&rft.epage=106122&rft.eissn=0883-2927&rft.issn=0883-2927&rft.au=SEGURA,%20David&CEREPI,%20Adrian&LOISY,%20Corinne&GU%C3%89LARD,%20Julia&NOIREZ,%20Sonia&rft.genre=article |
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