Numerical simulation of reactive barrier emplacement to control CO2 migration
Long-term storage of anthropogenic CO2 in the subsurface generally requires that caprock formations will serve as physical barriers to upward migration of CO2. As a result, geological carbon storage (GCS) projects require reliable techniques to monitor for newly formed leaks, and the ability to rapi...
| Main Authors: | , , , |
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| Format: | Book Chapter |
| Published: |
CPL Press
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/23740 |
| _version_ | 1848751234384658432 |
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| author | Druhan, J. Vialle, Stephanie Maher, K. Benson, S. |
| author_facet | Druhan, J. Vialle, Stephanie Maher, K. Benson, S. |
| author_sort | Druhan, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Long-term storage of anthropogenic CO2 in the subsurface generally requires that caprock formations will serve as physical barriers to upward migration of CO2. As a result, geological carbon storage (GCS) projects require reliable techniques to monitor for newly formed leaks, and the ability to rapidly deploy mitigation measures should leakage occur. Here, we develop a two-dimensional reactive transport simulation to analyse the hydrogeochemical characteristics of a newly formed CO2 leak entering an overlying reservoir and emplacement of a hypothetical pH dependent sealant in the vicinity of the leak. Simulations are conducted using the TOUGHREACT multi-component reactive transport code, focusing on the comparatively short time period of days to months following formation of the leak. The simulations are used to evaluate (1) geochemical shifts in formation water indicative of the leak, (2) hydrodynamics of pumping wells in the vicinity of the leak, and (3) delivery of a sealant to the leak through an adjacent well bore. |
| first_indexed | 2025-11-14T07:49:29Z |
| format | Book Chapter |
| id | curtin-20.500.11937-23740 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:49:29Z |
| publishDate | 2015 |
| publisher | CPL Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-237402017-01-30T12:38:52Z Numerical simulation of reactive barrier emplacement to control CO2 migration Druhan, J. Vialle, Stephanie Maher, K. Benson, S. Long-term storage of anthropogenic CO2 in the subsurface generally requires that caprock formations will serve as physical barriers to upward migration of CO2. As a result, geological carbon storage (GCS) projects require reliable techniques to monitor for newly formed leaks, and the ability to rapidly deploy mitigation measures should leakage occur. Here, we develop a two-dimensional reactive transport simulation to analyse the hydrogeochemical characteristics of a newly formed CO2 leak entering an overlying reservoir and emplacement of a hypothetical pH dependent sealant in the vicinity of the leak. Simulations are conducted using the TOUGHREACT multi-component reactive transport code, focusing on the comparatively short time period of days to months following formation of the leak. The simulations are used to evaluate (1) geochemical shifts in formation water indicative of the leak, (2) hydrodynamics of pumping wells in the vicinity of the leak, and (3) delivery of a sealant to the leak through an adjacent well bore. 2015 Book Chapter http://hdl.handle.net/20.500.11937/23740 CPL Press restricted |
| spellingShingle | Druhan, J. Vialle, Stephanie Maher, K. Benson, S. Numerical simulation of reactive barrier emplacement to control CO2 migration |
| title | Numerical simulation of reactive barrier emplacement to control CO2 migration |
| title_full | Numerical simulation of reactive barrier emplacement to control CO2 migration |
| title_fullStr | Numerical simulation of reactive barrier emplacement to control CO2 migration |
| title_full_unstemmed | Numerical simulation of reactive barrier emplacement to control CO2 migration |
| title_short | Numerical simulation of reactive barrier emplacement to control CO2 migration |
| title_sort | numerical simulation of reactive barrier emplacement to control co2 migration |
| url | http://hdl.handle.net/20.500.11937/23740 |