Show simple item record

dc.contributor.authorZhang, Y.
dc.contributor.authorLebedev, Maxim
dc.contributor.authorSarmadivaleh, M.
dc.contributor.authorBarifcani, Ahmed
dc.contributor.authorIglauer, Stefan
dc.date.accessioned2017-01-30T12:31:27Z
dc.date.available2017-01-30T12:31:27Z
dc.date.created2016-09-29T19:30:20Z
dc.date.issued2016
dc.identifier.citationZhang, Y. and Lebedev, M. and Sarmadivaleh, M. and Barifcani, A. and Iglauer, S. 2016. Swelling-induced changes in coal microstructure due to supercritical CO2 injection. Geophysical Research Letters. 43 (17): pp. 9077-9083.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/22445
dc.identifier.doi10.1002/2016GL070654
dc.description.abstract

©2016. American Geophysical Union. All Rights Reserved. Enhanced coalbed methane recovery and CO2 geostorage in coal seams are severely limited by permeability decrease caused by CO2 injection and associated coal matrix swelling. Typically, it is assumed that matrix swelling leads to coal cleat closure, and as a consequence, permeability is reduced. However, this assumption has not yet been directly observed. Using a novel in situ reservoir condition X-ray microcomputed tomography flooding apparatus, for the first time we observed such microcleat closure induced by supercritical CO2 flooding in situ. Furthermore, fracturing of the mineral phase (embedded in the coal) was observed; this fracturing was induced by the internal swelling stress. We conclude that coal permeability is drastically reduced by cleat closure, which again is caused by coal matrix swelling, which again is caused by flooding with supercritical CO2.

dc.publisherAmerican Geophysical Union
dc.titleSwelling-induced changes in coal microstructure due to supercritical CO2 injection
dc.typeJournal Article
dcterms.source.issn0094-8276
dcterms.source.titleGeophysical Research Letters
curtin.note

Copyright © 2016 The American Geophysical Union

curtin.departmentSchool of Chemical and Petroleum Engineering
curtin.accessStatusOpen access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record