Journal
GREENHOUSE GAS CONTROL TECHNOLOGIES 9
Volume 1, Issue 1, Pages 3173-3180Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2009.02.100
Keywords
Non-wetting phase; carbon dioxide; saturation; super-critical; climate change
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We measure the trapped non-wetting phase saturation as a function of the initial saturation in sand packs. The application of the work is for carbon dioxide (CO(2)) storage in aquifers where capillary trapping is a rapid and effective mechanism to render injected CO(2) immobile. We used analogue fluids at ambient conditions. The trapped saturation initially rises linearly with initial saturation to a value of 0.11 for oil/water systems and 0.14 for gas/water systems. There then follows a region where the residual saturation is constant with further increases in initial saturation. (C) 2008 Elsevier Ltd. All rights reserved.
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