Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties
CO2 wettability of minerals and CO2/brine interfacial tension are critical parameters that significantly influence the underground geological storage of CO2. These interfacial phenomena are proven to be a function of pressure, temperature, salinity and salt type. However, there is a clear lack in un...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Elsevier
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/51342 |
| _version_ | 1848758673674862592 |
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| author | Arif, Muhammad Jones, Franca Barifcani, Ahmed Iglauer, Stefan |
| author_facet | Arif, Muhammad Jones, Franca Barifcani, Ahmed Iglauer, Stefan |
| author_sort | Arif, Muhammad |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | CO2 wettability of minerals and CO2/brine interfacial tension are critical parameters that significantly influence the underground geological storage of CO2. These interfacial phenomena are proven to be a function of pressure, temperature, salinity and salt type. However, there is a clear lack in understanding of the principal mechanisms such as the electrochemical interactions at the brine/mineral interface, which are responsible for altering wettability. Moreover, the literature lacks experimental data on contact angle and interfacial tension for a broad range of salinity conditions. Therefore, in this article, we investigated the electrochemical processes at the brine/mica interface by measuring the zeta potentials of brine/mica systems as a function of temperature (298 K–343 K), salinity (0 wt% NaCl–5 wt% NaCl) and salt type (NaCl, CaCl2, MgCl2) and we measured advancing and receding contact angles for the same experimental matrix to derive the relationship between surface charge (at the brine/mineral interface) and wettability. Further, we measured advancing and receding contact angles for 20 wt% CaCl2 and 20 wt%MgCl2 at high pressures (0.1 MPa–20 MPa) and a temperature of 323 K, and CO2-brine interfacial tensions for the same conditions to allow wettability characterization at a broader scale. Such investigations are aimed at understanding and reducing the risk associated with CO2 geo-storage projects, by allowing the conceptual understanding of the factors influencing wettability. Finally, we provided a guided estimate of CO2 column heights that can be permanently immobilized beneath the caprock, and we found that elevated temperature and less saline brine lead to better storage capacities. |
| first_indexed | 2025-11-14T09:47:44Z |
| format | Journal Article |
| id | curtin-20.500.11937-51342 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:47:44Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-513422017-09-13T15:41:42Z Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties Arif, Muhammad Jones, Franca Barifcani, Ahmed Iglauer, Stefan CO2 wettability of minerals and CO2/brine interfacial tension are critical parameters that significantly influence the underground geological storage of CO2. These interfacial phenomena are proven to be a function of pressure, temperature, salinity and salt type. However, there is a clear lack in understanding of the principal mechanisms such as the electrochemical interactions at the brine/mineral interface, which are responsible for altering wettability. Moreover, the literature lacks experimental data on contact angle and interfacial tension for a broad range of salinity conditions. Therefore, in this article, we investigated the electrochemical processes at the brine/mica interface by measuring the zeta potentials of brine/mica systems as a function of temperature (298 K–343 K), salinity (0 wt% NaCl–5 wt% NaCl) and salt type (NaCl, CaCl2, MgCl2) and we measured advancing and receding contact angles for the same experimental matrix to derive the relationship between surface charge (at the brine/mineral interface) and wettability. Further, we measured advancing and receding contact angles for 20 wt% CaCl2 and 20 wt%MgCl2 at high pressures (0.1 MPa–20 MPa) and a temperature of 323 K, and CO2-brine interfacial tensions for the same conditions to allow wettability characterization at a broader scale. Such investigations are aimed at understanding and reducing the risk associated with CO2 geo-storage projects, by allowing the conceptual understanding of the factors influencing wettability. Finally, we provided a guided estimate of CO2 column heights that can be permanently immobilized beneath the caprock, and we found that elevated temperature and less saline brine lead to better storage capacities. 2017 Journal Article http://hdl.handle.net/20.500.11937/51342 10.1016/j.ijggc.2017.02.013 Elsevier restricted |
| spellingShingle | Arif, Muhammad Jones, Franca Barifcani, Ahmed Iglauer, Stefan Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties |
| title | Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties |
| title_full | Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties |
| title_fullStr | Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties |
| title_full_unstemmed | Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties |
| title_short | Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties |
| title_sort | electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial properties |
| url | http://hdl.handle.net/20.500.11937/51342 |