Injection of coal fly ash slurry in deep saline formations for improved CO2 confinement : a theoretical concept

dc.contributor.authorDoucet, F.J.
dc.contributor.authorMlambo, Thembane Kelvin
dc.contributor.authorVan der Merwe, Elizabet Margaretha
dc.contributor.authorAltermann, Wladyslaw
dc.date.accessioned2014-06-25T12:13:46Z
dc.date.available2014-06-25T12:13:46Z
dc.date.issued2014-06
dc.description.abstract98% of South Africa‟s total CO2 geological storage capacity is in the form of deep saline formations located off-shore, while the remaining 2% is situated on-shore. Such formations may not have a similar proven sealing capacity to that of depleted gas and oil reservoirs, and the country must give due consideration to every theoretically conceivable option for CO2 storage. This paper discusses a theoretical concept whereby coal fly ash slurries, composed of homogeneously-sized ultra-fine particles with adequate shear-thinning Newtonian rheological properties when suspended in water, could be injected in deep saline formations, alongside CO2, to engineer a „mineral curtain‟ that could act as a barrier preventing unwanted CO2 migration outside the boundary layers of the reservoir. The resulting pressure build-up could be managed by extracting the brine from the formations, which could then be used to produce fresh water for local communities deprived of drinking water.en_US
dc.description.librarianhb2014en_US
dc.description.sponsorshipSouth African Centre for Carbon Capture and Storage and the Mining Qualifications Authority of South Africaen_US
dc.description.urihttp://www.elsevier.com/locate/ijggcen_US
dc.identifier.citationDoucet, FJ, Mlambo, TK, Van der Merwe, EM & Altermann, W 2014, 'Injection of coal fly ash slurry in deep saline formations for improved CO2 confinement : a theoretical concept', International Journal of Greenhouse Gas Control, vol. 25, pp. 198-200.en_US
dc.identifier.issn1750-5836 (print)
dc.identifier.issn1878-0148 (online)
dc.identifier.other10.1016/j.ijggc.2014.04.015
dc.identifier.urihttp://hdl.handle.net/2263/40387
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rights© 2014 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in International International Journal of Greenhouse Gas Control. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International International Journal of Greenhouse Gas Control, vol. 25, June 2014, pp. 198–200. doi : 10.1016/j.ijggc.2014.04.015.en_US
dc.subjectFly ashen_US
dc.subjectCarbon dioxideen_US
dc.subjectGeological storageen_US
dc.subjectSaline formationsen_US
dc.subjectBrine extractionen_US
dc.titleInjection of coal fly ash slurry in deep saline formations for improved CO2 confinement : a theoretical concepten_US
dc.typePostprint Articleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Doucet_Injection_2014.pdf
Size:
172.74 KB
Format:
Adobe Portable Document Format
Description:
Postprint Article

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: