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    Switchable Diamine Surfactants for CO2 Mobility Control in Enhanced Oil Recovery and Sequestration

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    Author
    Elhag, Amro S.; Chen, Yunshen; Reddy, Prathima P.; Noguera, Jose A.; Ou, Anne Marie; More... Hirasaki, George J.; Nguyen, Quoc P.; Biswal, Sibani L.; Johnston, Keith P. Less...
    Date
    2014
    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.
    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.
    Published Version
    http://dx.doi.org/10.1016/j.egypro.2014.11.804
    Keyword
    enhanced oil recovery; foams; switchable amines
    Type
    Journal article
    Publisher
    Elsevier
    Citable link to this page
    https://hdl.handle.net/1911/79023
    Rights
    This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
    Link to License
    https://creativecommons.org/licenses/by-nc-nd/3.0/
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    • Chemical and Biomolecular Engineering Publications [253]
    • Faculty Publications [4990]

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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map