Contamination of silica surfaces: impact on water-CO2-quartz and glass contact angle measurements
CO2-wettability of sandstones is a key variable which determines structural and residual trapping capacities and strongly influences multi-phase fluid dynamics in the rock. An increasing number of researchers has now estimated this wettability by conducting contact angle measurements on quartz, howe...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/6501 |
| _version_ | 1848745093163384832 |
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| author | Iglauer, Stefan Salamah, Abdulsalam Sarmadivaleh, Mohammad Liu, Keyu Phan, Chi |
| author_facet | Iglauer, Stefan Salamah, Abdulsalam Sarmadivaleh, Mohammad Liu, Keyu Phan, Chi |
| author_sort | Iglauer, Stefan |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | CO2-wettability of sandstones is a key variable which determines structural and residual trapping capacities and strongly influences multi-phase fluid dynamics in the rock. An increasing number of researchers has now estimated this wettability by conducting contact angle measurements on quartz, however, there is a large uncertainty associated with the reported data. We demonstrate clearly that the main factor which leads to this broad data spread is due to surface contamination. It is clear that typically inappropriate cleaning methods were used which resulted in artificially high contact angle measurements. We used surface cleaning methods typically prescribed in the surface chemistry community and found that the water contact angle θ on a clean quartz substrate is low, 0–30°, and that θ increases with pressure. We conclude that quartz is strongly water-wet at high pressure conditions. |
| first_indexed | 2025-11-14T06:11:52Z |
| format | Journal Article |
| id | curtin-20.500.11937-6501 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:11:52Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-65012019-02-19T04:26:59Z Contamination of silica surfaces: impact on water-CO2-quartz and glass contact angle measurements Iglauer, Stefan Salamah, Abdulsalam Sarmadivaleh, Mohammad Liu, Keyu Phan, Chi CO2 wettability contact angle surface contamination CO2-wettability of sandstones is a key variable which determines structural and residual trapping capacities and strongly influences multi-phase fluid dynamics in the rock. An increasing number of researchers has now estimated this wettability by conducting contact angle measurements on quartz, however, there is a large uncertainty associated with the reported data. We demonstrate clearly that the main factor which leads to this broad data spread is due to surface contamination. It is clear that typically inappropriate cleaning methods were used which resulted in artificially high contact angle measurements. We used surface cleaning methods typically prescribed in the surface chemistry community and found that the water contact angle θ on a clean quartz substrate is low, 0–30°, and that θ increases with pressure. We conclude that quartz is strongly water-wet at high pressure conditions. 2014 Journal Article http://hdl.handle.net/20.500.11937/6501 Elsevier fulltext |
| spellingShingle | CO2 wettability contact angle surface contamination Iglauer, Stefan Salamah, Abdulsalam Sarmadivaleh, Mohammad Liu, Keyu Phan, Chi Contamination of silica surfaces: impact on water-CO2-quartz and glass contact angle measurements |
| title | Contamination of silica surfaces: impact on water-CO2-quartz and glass contact angle measurements |
| title_full | Contamination of silica surfaces: impact on water-CO2-quartz and glass contact angle measurements |
| title_fullStr | Contamination of silica surfaces: impact on water-CO2-quartz and glass contact angle measurements |
| title_full_unstemmed | Contamination of silica surfaces: impact on water-CO2-quartz and glass contact angle measurements |
| title_short | Contamination of silica surfaces: impact on water-CO2-quartz and glass contact angle measurements |
| title_sort | contamination of silica surfaces: impact on water-co2-quartz and glass contact angle measurements |
| topic | CO2 wettability contact angle surface contamination |
| url | http://hdl.handle.net/20.500.11937/6501 |