Low salinity oil recovery - An experimental investigation

A Lager, K J Webb, C J J Black, Michael Singleton, Kenneth Stuart Sorbie

    Research output: Contribution to journalArticlepeer-review

    604 Citations (Scopus)


    The idea of injecting low salinity water into a petroleum reservoir is not novel and was often used in the 70s prior to the injection of surfactant. Recently it was shown that simply injecting sufficiently low salinity water improves oil recovery. Many possible mechanisms concerning low-salinity waterflood have been proposed in the literature. This paper describes an experimental investigation into some of the factors controlling the increased oil recovery observed when low salinity brine is injected into oil saturated reservoir core samples. Extensive chemical analyses were performed on the effluent showing the extent of interaction between the injected brine, the oil and the rock matrix. © 2008 Society of Petrophysicists and Well Log Analysts. All rights reserved.

    Original languageEnglish
    Pages (from-to)28-35
    Number of pages8
    Issue number1
    Publication statusPublished - Feb 2008


    • Cation exchange
    • Clay mineralogy
    • Low-salinity waterflood


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