CO2 wettability of caprocks: Implications for structural storage capacity and containment security

© 2015. American Geophysical Union. All Rights Reserved. Structural trapping, the most important CO2 geostorage mechanism during the first decades of a sequestration project, hinges on the traditional assumption that the caprock is strongly water wet. However, this assumption has not yet been verifi...

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Main Authors: Iglauer, Stefan, Al-Yaseri, Ahmed, Rezaee, M. Reza, Lebedev, Maxim
Format: Journal Article
Published: 2015
Online Access:http://hdl.handle.net/20.500.11937/12807
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author Iglauer, Stefan
Al-Yaseri, Ahmed
Rezaee, M. Reza
Lebedev, Maxim
author_facet Iglauer, Stefan
Al-Yaseri, Ahmed
Rezaee, M. Reza
Lebedev, Maxim
author_sort Iglauer, Stefan
building Curtin Institutional Repository
collection Online Access
description © 2015. American Geophysical Union. All Rights Reserved. Structural trapping, the most important CO2 geostorage mechanism during the first decades of a sequestration project, hinges on the traditional assumption that the caprock is strongly water wet. However, this assumption has not yet been verified; and it is indeed not generally true as we demonstrate here. Instead, caprock can be weakly water wet or intermediate wet at typical storage conditions; and water wettability decreases with increasing pressure or temperature. Consequently, a lower storage capacity can be inferred for structural trapping in such cases.
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spelling curtin-20.500.11937-128072017-09-13T15:00:25Z CO2 wettability of caprocks: Implications for structural storage capacity and containment security Iglauer, Stefan Al-Yaseri, Ahmed Rezaee, M. Reza Lebedev, Maxim © 2015. American Geophysical Union. All Rights Reserved. Structural trapping, the most important CO2 geostorage mechanism during the first decades of a sequestration project, hinges on the traditional assumption that the caprock is strongly water wet. However, this assumption has not yet been verified; and it is indeed not generally true as we demonstrate here. Instead, caprock can be weakly water wet or intermediate wet at typical storage conditions; and water wettability decreases with increasing pressure or temperature. Consequently, a lower storage capacity can be inferred for structural trapping in such cases. 2015 Journal Article http://hdl.handle.net/20.500.11937/12807 10.1002/2015GL065787 fulltext
spellingShingle Iglauer, Stefan
Al-Yaseri, Ahmed
Rezaee, M. Reza
Lebedev, Maxim
CO2 wettability of caprocks: Implications for structural storage capacity and containment security
title CO2 wettability of caprocks: Implications for structural storage capacity and containment security
title_full CO2 wettability of caprocks: Implications for structural storage capacity and containment security
title_fullStr CO2 wettability of caprocks: Implications for structural storage capacity and containment security
title_full_unstemmed CO2 wettability of caprocks: Implications for structural storage capacity and containment security
title_short CO2 wettability of caprocks: Implications for structural storage capacity and containment security
title_sort co2 wettability of caprocks: implications for structural storage capacity and containment security
url http://hdl.handle.net/20.500.11937/12807