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dc.contributor.authorElhag, Amro S.
Chen, Yunshen
Reddy, Prathima P.
Noguera, Jose A.
Ou, Anne Marie
Hirasaki, George J.
Nguyen, Quoc P.
Biswal, Sibani L.
Johnston, Keith P.
dc.date.accessioned 2015-02-02T18:00:46Z
dc.date.available 2015-02-02T18:00:46Z
dc.date.issued 2014
dc.identifier.citation Elhag, Amro S., Chen, Yunshen, Reddy, Prathima P., et al.. "Switchable Diamine Surfactants for CO2 Mobility Control in Enhanced Oil Recovery and Sequestration." Energy Procedia, 63, (2014) Elsevier: 7709-7716. http://dx.doi.org/10.1016/j.egypro.2014.11.804.
dc.identifier.urihttps://hdl.handle.net/1911/79023
dc.description.abstract The design of switchable amine surfactants for CO2 EOR in carbonate reservoirs at high temperatures is challenging because of the increase in the pH due to dissolution of calcium carbonate at acidic conditions. The increased pH hinders the protonation of the surfactant and its aqueous solubility. In this work, the addition of a second amine headgroup ensured that C16-18 N(EO) C3N(EO)2 is soluble in 22%TDS brine at neutral pH conditions. Also, captive bubble tensiometry measurements confirmed the activity of the surfactant at the C-W interface by large reduction in the interfacial tension coupled with high adsorption. Also, the surfactant generated viscous foam that can stabilize the displacement front in CO2 EOR processes and decrease the mobility of CO2 for enhanced CO2 sequestration.
dc.language.iso eng
dc.publisher Elsevier
dc.rightsThis is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/
dc.title Switchable Diamine Surfactants for CO2 Mobility Control in Enhanced Oil Recovery and Sequestration
dc.type Journal article
dc.contributor.funder Abu Dhabi National Oil Company
dc.contributor.funder U.S. Department of Energy, National Energy Technology Laboratory
dc.contributor.funder Welch Foundation
dc.citation.journalTitle Energy Procedia
dc.subject.keywordenhanced oil recovery
foams
switchable amines
dc.citation.volumeNumber 63
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1016/j.egypro.2014.11.804
dc.identifier.grantID DOE ? AC02-06CH11357 (U.S. Department of Energy, National Energy Technology Laboratory)
dc.identifier.grantID F-1319 (Welch Foundation)
dc.type.publication publisher version
dc.citation.firstpage 7709
dc.citation.lastpage 7716


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