Cyclic CO2 storage operation driven entirely by geothermal power
Decarbonization is a global priority, and CO2 sequestration is one method to achieve this goal. However, large-scale implementation is difficult due to the costs and emissions involved. A promising approach is to combine CO2 sequestration with geothermal energy generation. This study explores a syst...
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Elsevier
2025-01-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844025001999 |
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| author | Nan Tai Xiaolin Bao Ian Gates |
| author_facet | Nan Tai Xiaolin Bao Ian Gates |
| author_sort | Nan Tai |
| collection | DOAJ |
| description | Decarbonization is a global priority, and CO2 sequestration is one method to achieve this goal. However, large-scale implementation is difficult due to the costs and emissions involved. A promising approach is to combine CO2 sequestration with geothermal energy generation. This study explores a system using six horizontal wells for cyclic CO2 injection and hot water extraction in the Basal Cambrian Sandstone Unit, Canada by using detailed geothermal modelling. The results indicate that the electricity generated from geothermal energy can offset the energy required for CO2 injection, potentially achieving net-zero emission CO2 storage. A shut-in period between injection and production improves CO2 storage but may reduce total power output. The best CO2 storage performance occurred with synchronized injection and production timings across wells, though this resulted in lower power generation. Conversely, staggered injection and production timings enhanced power generation but reduced CO2 storage efficiency. These findings suggest that it is possible to design processes where the geothermal energy produced can cover the operational energy needs of CO2 sequestration, offering a viable path to emission-free carbon storage operations. |
| format | Article |
| id | doaj-art-35ac448b5f994f5bbe0e80da3796fe2a |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-35ac448b5f994f5bbe0e80da3796fe2a2025-02-02T05:28:17ZengElsevierHeliyon2405-84402025-01-01112e41819Cyclic CO2 storage operation driven entirely by geothermal powerNan Tai0Xiaolin Bao1Ian Gates2Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, CanadaDepartment of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, CanadaCorresponding author.; Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, CanadaDecarbonization is a global priority, and CO2 sequestration is one method to achieve this goal. However, large-scale implementation is difficult due to the costs and emissions involved. A promising approach is to combine CO2 sequestration with geothermal energy generation. This study explores a system using six horizontal wells for cyclic CO2 injection and hot water extraction in the Basal Cambrian Sandstone Unit, Canada by using detailed geothermal modelling. The results indicate that the electricity generated from geothermal energy can offset the energy required for CO2 injection, potentially achieving net-zero emission CO2 storage. A shut-in period between injection and production improves CO2 storage but may reduce total power output. The best CO2 storage performance occurred with synchronized injection and production timings across wells, though this resulted in lower power generation. Conversely, staggered injection and production timings enhanced power generation but reduced CO2 storage efficiency. These findings suggest that it is possible to design processes where the geothermal energy produced can cover the operational energy needs of CO2 sequestration, offering a viable path to emission-free carbon storage operations.http://www.sciencedirect.com/science/article/pii/S2405844025001999Cyclic CO2-Plume geothermalMulti-well huff and puffCO2 storageNet zero emissionBasal Cambrian sandstone unit |
| spellingShingle | Nan Tai Xiaolin Bao Ian Gates Cyclic CO2 storage operation driven entirely by geothermal power Heliyon Cyclic CO2-Plume geothermal Multi-well huff and puff CO2 storage Net zero emission Basal Cambrian sandstone unit |
| title | Cyclic CO2 storage operation driven entirely by geothermal power |
| title_full | Cyclic CO2 storage operation driven entirely by geothermal power |
| title_fullStr | Cyclic CO2 storage operation driven entirely by geothermal power |
| title_full_unstemmed | Cyclic CO2 storage operation driven entirely by geothermal power |
| title_short | Cyclic CO2 storage operation driven entirely by geothermal power |
| title_sort | cyclic co2 storage operation driven entirely by geothermal power |
| topic | Cyclic CO2-Plume geothermal Multi-well huff and puff CO2 storage Net zero emission Basal Cambrian sandstone unit |
| url | http://www.sciencedirect.com/science/article/pii/S2405844025001999 |
| work_keys_str_mv | AT nantai cyclicco2storageoperationdrivenentirelybygeothermalpower AT xiaolinbao cyclicco2storageoperationdrivenentirelybygeothermalpower AT iangates cyclicco2storageoperationdrivenentirelybygeothermalpower |