Effect of wettability heterogeneity and reservoir temperature on CO2 storage efficiency in deep saline aquifers
Reservoir heterogeneity at various length scales is a well-established fact. This includes reservoir wettability - a key factor influencing CO 2 geo-storage efficiency and containment security - which changes with depth, and is generally non-uniform due to different depositional environments and flu...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/61237 |
| _version_ | 1848760670654300160 |
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| author | Al-Khdheeawi, E. Vialle, Stephanie Barifcani, Ahmed Sarmadivaleh, Mohammad Iglauer, Stefan |
| author_facet | Al-Khdheeawi, E. Vialle, Stephanie Barifcani, Ahmed Sarmadivaleh, Mohammad Iglauer, Stefan |
| author_sort | Al-Khdheeawi, E. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Reservoir heterogeneity at various length scales is a well-established fact. This includes reservoir wettability - a key factor influencing CO 2 geo-storage efficiency and containment security - which changes with depth, and is generally non-uniform due to different depositional environments and fluid flow paths over geological times. However, the effect of heterogeneous wettability distribution on CO 2 storage efficiency is not understood. Moreover, there is a knowledge gap in terms of how temperature affects capillary and dissolution trapping, CO 2 mobility and vertical CO 2 migration distance, particularly when coupled with wettability heterogeneity effects. Thus, in this work we studied the effect of wettability heterogeneity and reservoir temperature on the vertical CO 2 plume migration, and capillary and dissolution trapping capacities. Our results clearly show that both wettability heterogeneity and reservoir temperature have a significant effect on vertical CO 2 migration, and the associated capillary and dissolution trapping mechanisms: both heterogeneously distributed wettability and higher temperature significantly accelerated the vertical CO 2 migration, CO 2 mobility and solubility trapping, while it reduced residual trapping. We thus conclude that wettability heterogeneity and reservoir temperature are important factors in the context of CO 2 geo-storage, and that heterogeneous wettability and higher reservoir temperatures reduce storage capacity. |
| first_indexed | 2025-11-14T10:19:28Z |
| format | Journal Article |
| id | curtin-20.500.11937-61237 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:19:28Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-612372018-07-04T02:42:45Z Effect of wettability heterogeneity and reservoir temperature on CO2 storage efficiency in deep saline aquifers Al-Khdheeawi, E. Vialle, Stephanie Barifcani, Ahmed Sarmadivaleh, Mohammad Iglauer, Stefan Reservoir heterogeneity at various length scales is a well-established fact. This includes reservoir wettability - a key factor influencing CO 2 geo-storage efficiency and containment security - which changes with depth, and is generally non-uniform due to different depositional environments and fluid flow paths over geological times. However, the effect of heterogeneous wettability distribution on CO 2 storage efficiency is not understood. Moreover, there is a knowledge gap in terms of how temperature affects capillary and dissolution trapping, CO 2 mobility and vertical CO 2 migration distance, particularly when coupled with wettability heterogeneity effects. Thus, in this work we studied the effect of wettability heterogeneity and reservoir temperature on the vertical CO 2 plume migration, and capillary and dissolution trapping capacities. Our results clearly show that both wettability heterogeneity and reservoir temperature have a significant effect on vertical CO 2 migration, and the associated capillary and dissolution trapping mechanisms: both heterogeneously distributed wettability and higher temperature significantly accelerated the vertical CO 2 migration, CO 2 mobility and solubility trapping, while it reduced residual trapping. We thus conclude that wettability heterogeneity and reservoir temperature are important factors in the context of CO 2 geo-storage, and that heterogeneous wettability and higher reservoir temperatures reduce storage capacity. 2018 Journal Article http://hdl.handle.net/20.500.11937/61237 10.1016/j.ijggc.2017.11.016 Elsevier restricted |
| spellingShingle | Al-Khdheeawi, E. Vialle, Stephanie Barifcani, Ahmed Sarmadivaleh, Mohammad Iglauer, Stefan Effect of wettability heterogeneity and reservoir temperature on CO2 storage efficiency in deep saline aquifers |
| title | Effect of wettability heterogeneity and reservoir temperature on CO2 storage efficiency in deep saline aquifers |
| title_full | Effect of wettability heterogeneity and reservoir temperature on CO2 storage efficiency in deep saline aquifers |
| title_fullStr | Effect of wettability heterogeneity and reservoir temperature on CO2 storage efficiency in deep saline aquifers |
| title_full_unstemmed | Effect of wettability heterogeneity and reservoir temperature on CO2 storage efficiency in deep saline aquifers |
| title_short | Effect of wettability heterogeneity and reservoir temperature on CO2 storage efficiency in deep saline aquifers |
| title_sort | effect of wettability heterogeneity and reservoir temperature on co2 storage efficiency in deep saline aquifers |
| url | http://hdl.handle.net/20.500.11937/61237 |