CO2 and CH4 Wettabilities of Organic-Rich Shale
CO 2 and CH 4 wettabilities of organic-rich shale are important physicochemical parameters that significantly influence CO 2 sequestration and CH 4 production. However, there is a serious lack of understanding of these aspects because the data available are scarce. Thus, we evaluated organic-rich sh...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/67301 |
| _version_ | 1848761530660683776 |
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| author | Pan, B. Li, Y. Wang, H. Jones, Franca Iglauer, Stefan |
| author_facet | Pan, B. Li, Y. Wang, H. Jones, Franca Iglauer, Stefan |
| author_sort | Pan, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | CO 2 and CH 4 wettabilities of organic-rich shale are important physicochemical parameters that significantly influence CO 2 sequestration and CH 4 production. However, there is a serious lack of understanding of these aspects because the data available are scarce. Thus, we evaluated organic-rich shale CO 2 and CH 4 wettabilities (i.e., brine/shale/gas systems) through advancing and receding brine contact angle measurements as a function of pressure, temperature, salinity, and ion type (as these can vary significantly in underground formations). The results indicated that the brine contact angles for both CO 2 /CH 4 -brine-shale systems increased with pressure and salinity, but decreased with temperature. However, these effects were much less significant for CH 4 . Furthermore, the brine contact angles for the CO 2 -brine-shale system reached 180° (i.e., the shale was completely wetted by CO 2 ) when the pressure reached 30 MPa at 343 K and ∼9 MPa at 298 K. The brine contact angles for the analogue CH 4 systems was much lower (50°-90°), only indicating weakly water-wet to intermediate-wet conditions. Finally, the brine contact angles for CO 2 -brine-shale system were also larger for divalent ions (Ca 2+ , Mg 2+ ) than for monovalent ions (Na + , K + ), while ion type had no significant influence on CH 4 wettability. However, a similar CO 2 /CH 4 density resulted in a similar wettability. Consequently CH 4 could not be used as a proxy for predicting CO 2 storage capacities, unless they have similar densities. |
| first_indexed | 2025-11-14T10:33:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-67301 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:33:08Z |
| publishDate | 2018 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-673012018-08-10T03:15:35Z CO2 and CH4 Wettabilities of Organic-Rich Shale Pan, B. Li, Y. Wang, H. Jones, Franca Iglauer, Stefan CO 2 and CH 4 wettabilities of organic-rich shale are important physicochemical parameters that significantly influence CO 2 sequestration and CH 4 production. However, there is a serious lack of understanding of these aspects because the data available are scarce. Thus, we evaluated organic-rich shale CO 2 and CH 4 wettabilities (i.e., brine/shale/gas systems) through advancing and receding brine contact angle measurements as a function of pressure, temperature, salinity, and ion type (as these can vary significantly in underground formations). The results indicated that the brine contact angles for both CO 2 /CH 4 -brine-shale systems increased with pressure and salinity, but decreased with temperature. However, these effects were much less significant for CH 4 . Furthermore, the brine contact angles for the CO 2 -brine-shale system reached 180° (i.e., the shale was completely wetted by CO 2 ) when the pressure reached 30 MPa at 343 K and ∼9 MPa at 298 K. The brine contact angles for the analogue CH 4 systems was much lower (50°-90°), only indicating weakly water-wet to intermediate-wet conditions. Finally, the brine contact angles for CO 2 -brine-shale system were also larger for divalent ions (Ca 2+ , Mg 2+ ) than for monovalent ions (Na + , K + ), while ion type had no significant influence on CH 4 wettability. However, a similar CO 2 /CH 4 density resulted in a similar wettability. Consequently CH 4 could not be used as a proxy for predicting CO 2 storage capacities, unless they have similar densities. 2018 Journal Article http://hdl.handle.net/20.500.11937/67301 10.1021/acs.energyfuels.7b01147 American Chemical Society restricted |
| spellingShingle | Pan, B. Li, Y. Wang, H. Jones, Franca Iglauer, Stefan CO2 and CH4 Wettabilities of Organic-Rich Shale |
| title | CO2 and CH4 Wettabilities of Organic-Rich Shale |
| title_full | CO2 and CH4 Wettabilities of Organic-Rich Shale |
| title_fullStr | CO2 and CH4 Wettabilities of Organic-Rich Shale |
| title_full_unstemmed | CO2 and CH4 Wettabilities of Organic-Rich Shale |
| title_short | CO2 and CH4 Wettabilities of Organic-Rich Shale |
| title_sort | co2 and ch4 wettabilities of organic-rich shale |
| url | http://hdl.handle.net/20.500.11937/67301 |