CO2 sequestration potential in Depleted Hydrocarbon fields – A geochemical approach [version 2; peer review: 2 approved]
Background The CO2 emissions reduction is crucial for the energy transition. New technologies for CO2 capture and storage are under development, such as CEEGS 1,2 . Porous media and rock caverns are geological formations of high interest for such technology. Among them, depleted hydrocarbon fields (...
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F1000 Research Ltd
2025-04-01
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| Online Access: | https://open-research-europe.ec.europa.eu/articles/5-17/v2 |
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| author | Pavlos Tyrologou Nikolaos Koukouzas Dounya Behnous Eleni Gianni Paula Fernández-Canteli Álvarez Márton Pál Farkas Ricardo Chacartegui Ramirez Jesús García Crespo Júlio Carneiro |
| author_facet | Pavlos Tyrologou Nikolaos Koukouzas Dounya Behnous Eleni Gianni Paula Fernández-Canteli Álvarez Márton Pál Farkas Ricardo Chacartegui Ramirez Jesús García Crespo Júlio Carneiro |
| author_sort | Pavlos Tyrologou |
| collection | DOAJ |
| description | Background The CO2 emissions reduction is crucial for the energy transition. New technologies for CO2 capture and storage are under development, such as CEEGS 1,2 . Porous media and rock caverns are geological formations of high interest for such technology. Among them, depleted hydrocarbon fields (DHF) gain ground due to existing reservoir knowledge and already established infrastructure which decreases the cost. However, one of the major problems caused during CO2 storage in DHF is the interactions between the injected CO2 and the remaining fluids. Methods In this study, the potential CO2 storage in DHF was investigated. Marismas 3 was used as a hypothetical model area for the examination of CO2 interactions with a carbonate-silisiclastic reservoir. PHREEQC software 1 was used to investigate reservoir rock/water/remained gas (CH4) interactions followed by interactions taking place after the CO2 injection. Different scenarios were used for the CO2 concentration and behaviour in the reservoir. To make the system more complex and generic, the CMG-GEM software 3 was utilized to examine the long-term sequestration of CO2 through dissolution trapping, residual trapping, and lateral migration in a reservoir analogue to the Marismas field, but at higher depth, compatible with the CEEGS technology. Results During the CO2 injection, carbonic acid was formed, causing a dissolution of several minerals, leading to siderite and clay minerals precipitation, which may cause problems to the permeability of the system. The colloidal nature of siderite and the Ca-montmorillonite swelling properties are of high concern for pore throat clogging. The other newly formed mineralogical phases are not threatening the reservoir quality. CMG-GEM validated the critical phase of CO2 plume establishment. Conclusions The proposed DHF is promising for real-world underground applications fitting to CEEGS technology as the newly formed minerals that could cause failures can be easily controlled by anthropogenic changes in the reservoir parameters. |
| format | Article |
| id | doaj-art-1307d279befe422aa1cd16d7c950c5ef |
| institution | OA Journals |
| issn | 2732-5121 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | F1000 Research Ltd |
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| spelling | doaj-art-1307d279befe422aa1cd16d7c950c5ef2025-08-20T02:06:17ZengF1000 Research LtdOpen Research Europe2732-51212025-04-01510.12688/openreseurope.19280.221775CO2 sequestration potential in Depleted Hydrocarbon fields – A geochemical approach [version 2; peer review: 2 approved]Pavlos Tyrologou0https://orcid.org/0000-0001-7706-1774Nikolaos Koukouzas1Dounya Behnous2Eleni Gianni3https://orcid.org/0000-0001-6008-8014Paula Fernández-Canteli Álvarez4Márton Pál Farkas5Ricardo Chacartegui Ramirez6Jesús García Crespo7Júlio Carneiro8https://orcid.org/0000-0002-4900-3355Centre for Research and Technology Hellas (CERTH), Egialias 52, Marousi, 151 25, GreeceCentre for Research and Technology Hellas (CERTH), Egialias 52, Marousi, 151 25, GreeceParque do Alentejo de Ciência e Tecnologia, Converge!, Évora, 7005-841, PortugalCentre for Research and Technology Hellas (CERTH), Egialias 52, Marousi, 151 25, GreeceInstituto Geológico y Minero de España (IGME-CSIC), Madrid, Ríos Rosas, 23, 28003, SpainGeoenergy, GFZ German Research Centre for Geosciences, Telegrafenberg, Potsdam,, 14473, GermanyDepartment Ingeniería Energética, Universidad de Sevilla, Sevilla, Camino de los Descubrimientos s/n, 41092, SpainInstituto Geológico y Minero de España (IGME-CSIC), Madrid, Ríos Rosas, 23, 28003, SpainParque do Alentejo de Ciência e Tecnologia, Converge!, Évora, 7005-841, PortugalBackground The CO2 emissions reduction is crucial for the energy transition. New technologies for CO2 capture and storage are under development, such as CEEGS 1,2 . Porous media and rock caverns are geological formations of high interest for such technology. Among them, depleted hydrocarbon fields (DHF) gain ground due to existing reservoir knowledge and already established infrastructure which decreases the cost. However, one of the major problems caused during CO2 storage in DHF is the interactions between the injected CO2 and the remaining fluids. Methods In this study, the potential CO2 storage in DHF was investigated. Marismas 3 was used as a hypothetical model area for the examination of CO2 interactions with a carbonate-silisiclastic reservoir. PHREEQC software 1 was used to investigate reservoir rock/water/remained gas (CH4) interactions followed by interactions taking place after the CO2 injection. Different scenarios were used for the CO2 concentration and behaviour in the reservoir. To make the system more complex and generic, the CMG-GEM software 3 was utilized to examine the long-term sequestration of CO2 through dissolution trapping, residual trapping, and lateral migration in a reservoir analogue to the Marismas field, but at higher depth, compatible with the CEEGS technology. Results During the CO2 injection, carbonic acid was formed, causing a dissolution of several minerals, leading to siderite and clay minerals precipitation, which may cause problems to the permeability of the system. The colloidal nature of siderite and the Ca-montmorillonite swelling properties are of high concern for pore throat clogging. The other newly formed mineralogical phases are not threatening the reservoir quality. CMG-GEM validated the critical phase of CO2 plume establishment. Conclusions The proposed DHF is promising for real-world underground applications fitting to CEEGS technology as the newly formed minerals that could cause failures can be easily controlled by anthropogenic changes in the reservoir parameters.https://open-research-europe.ec.europa.eu/articles/5-17/v2CO2 storage; depleted hydrocarbon fields; energy storage; geochemical interactions; underground storageeng |
| spellingShingle | Pavlos Tyrologou Nikolaos Koukouzas Dounya Behnous Eleni Gianni Paula Fernández-Canteli Álvarez Márton Pál Farkas Ricardo Chacartegui Ramirez Jesús García Crespo Júlio Carneiro CO2 sequestration potential in Depleted Hydrocarbon fields – A geochemical approach [version 2; peer review: 2 approved] Open Research Europe CO2 storage; depleted hydrocarbon fields; energy storage; geochemical interactions; underground storage eng |
| title | CO2 sequestration potential in Depleted Hydrocarbon fields – A geochemical approach [version 2; peer review: 2 approved] |
| title_full | CO2 sequestration potential in Depleted Hydrocarbon fields – A geochemical approach [version 2; peer review: 2 approved] |
| title_fullStr | CO2 sequestration potential in Depleted Hydrocarbon fields – A geochemical approach [version 2; peer review: 2 approved] |
| title_full_unstemmed | CO2 sequestration potential in Depleted Hydrocarbon fields – A geochemical approach [version 2; peer review: 2 approved] |
| title_short | CO2 sequestration potential in Depleted Hydrocarbon fields – A geochemical approach [version 2; peer review: 2 approved] |
| title_sort | co2 sequestration potential in depleted hydrocarbon fields a geochemical approach version 2 peer review 2 approved |
| topic | CO2 storage; depleted hydrocarbon fields; energy storage; geochemical interactions; underground storage eng |
| url | https://open-research-europe.ec.europa.eu/articles/5-17/v2 |
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