Multidimensional Reactive Transport Modeling Of Co2 Mineral Sequestration In Basalts At The Hellisheidi Geothermal Field, Iceland.
Two and three-dimensional field scale reservoir models of CO2 mineral sequestration in basalts were developed and calibrated against a large set of field data. Resulting principal hydrological properties are lateral and vertical intrinsic permeabilities of 300 and 1700 × 10−15m2, respectively, effec...
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ftdatacite:10.5281/zenodo.12893 2023-05-15T16:50:36+02:00 Multidimensional Reactive Transport Modeling Of Co2 Mineral Sequestration In Basalts At The Hellisheidi Geothermal Field, Iceland. Edda S.P. Aradóttir, Eric L. Sonnenthal 2012 https://dx.doi.org/10.5281/zenodo.12893 https://zenodo.org/record/12893 unknown Zenodo Open Access Creative Commons Attribution 4.0 https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess CC-BY Text Journal article article-journal ScholarlyArticle 2012 ftdatacite https://doi.org/10.5281/zenodo.12893 2021-11-05T12:55:41Z Two and three-dimensional field scale reservoir models of CO2 mineral sequestration in basalts were developed and calibrated against a large set of field data. Resulting principal hydrological properties are lateral and vertical intrinsic permeabilities of 300 and 1700 × 10−15m2, respectively, effective matrix porosity of 8.5% and a 25 m/year estimate for regional groundwater flow velocity. Reactive chemistry was coupled to calibrated models and predictive mass transport and reactive transport simulations carried out for both a 1200-tonnes pilot CO2 injection and a full-scale 400,000-tonnes CO2 injection scenario. Reactive transport simulations of the pilot injection predict 100% CO2 mineral capture within 10 years and cumulative fixation per unit surface area of 5000 tonnes/km2. Corresponding values for the full-scale scenario are 80% CO2 mineral capture after 100 years and cumulative fixation of 35,000 tonnes/km2. CO2 sequestration rate is predicted to range between 1200 and 22,000 tonnes/year in both scenarios. The predictive value of mass transport simulations was found to be considerably lower than that of reactive transport simulations. Results from three-dimensional simulations were also in significantly better agreement with field observations than equivalent two-dimensional results. Despite only being indicative, it is concluded from this study that fresh basalts may comprise ideal geological CO2 storage formations. Text Iceland DataCite Metadata Store (German National Library of Science and Technology) |
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Two and three-dimensional field scale reservoir models of CO2 mineral sequestration in basalts were developed and calibrated against a large set of field data. Resulting principal hydrological properties are lateral and vertical intrinsic permeabilities of 300 and 1700 × 10−15m2, respectively, effective matrix porosity of 8.5% and a 25 m/year estimate for regional groundwater flow velocity. Reactive chemistry was coupled to calibrated models and predictive mass transport and reactive transport simulations carried out for both a 1200-tonnes pilot CO2 injection and a full-scale 400,000-tonnes CO2 injection scenario. Reactive transport simulations of the pilot injection predict 100% CO2 mineral capture within 10 years and cumulative fixation per unit surface area of 5000 tonnes/km2. Corresponding values for the full-scale scenario are 80% CO2 mineral capture after 100 years and cumulative fixation of 35,000 tonnes/km2. CO2 sequestration rate is predicted to range between 1200 and 22,000 tonnes/year in both scenarios. The predictive value of mass transport simulations was found to be considerably lower than that of reactive transport simulations. Results from three-dimensional simulations were also in significantly better agreement with field observations than equivalent two-dimensional results. Despite only being indicative, it is concluded from this study that fresh basalts may comprise ideal geological CO2 storage formations. |
format |
Text |
author |
Edda S.P. Aradóttir, Eric L. Sonnenthal |
spellingShingle |
Edda S.P. Aradóttir, Eric L. Sonnenthal Multidimensional Reactive Transport Modeling Of Co2 Mineral Sequestration In Basalts At The Hellisheidi Geothermal Field, Iceland. |
author_facet |
Edda S.P. Aradóttir, Eric L. Sonnenthal |
author_sort |
Edda S.P. Aradóttir, Eric L. Sonnenthal |
title |
Multidimensional Reactive Transport Modeling Of Co2 Mineral Sequestration In Basalts At The Hellisheidi Geothermal Field, Iceland. |
title_short |
Multidimensional Reactive Transport Modeling Of Co2 Mineral Sequestration In Basalts At The Hellisheidi Geothermal Field, Iceland. |
title_full |
Multidimensional Reactive Transport Modeling Of Co2 Mineral Sequestration In Basalts At The Hellisheidi Geothermal Field, Iceland. |
title_fullStr |
Multidimensional Reactive Transport Modeling Of Co2 Mineral Sequestration In Basalts At The Hellisheidi Geothermal Field, Iceland. |
title_full_unstemmed |
Multidimensional Reactive Transport Modeling Of Co2 Mineral Sequestration In Basalts At The Hellisheidi Geothermal Field, Iceland. |
title_sort |
multidimensional reactive transport modeling of co2 mineral sequestration in basalts at the hellisheidi geothermal field, iceland. |
publisher |
Zenodo |
publishDate |
2012 |
url |
https://dx.doi.org/10.5281/zenodo.12893 https://zenodo.org/record/12893 |
genre |
Iceland |
genre_facet |
Iceland |
op_rights |
Open Access Creative Commons Attribution 4.0 https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.12893 |
_version_ |
1766040738963914752 |