Mixing of injected, connate and aquifer brines in waterflooding and its relevance to oilfield scaling

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    Abstract

    All of the principal mechanisms of brine mixing in waterflood displacements are considered and modelled. Mixing between the injection water (IW), the oil leg connate water (CW) and the aquifer water (AQW) is analyzed starting from a one-dimensional frontal displacement, extended Buckley-Leverett (BL) analysis. This particular mechanism occurs in all other types of displacement and reservoir mixing process including those in both heterogeneous layered systems and in areal flooding situations.

    Original languageEnglish
    Pages (from-to)85-106
    Number of pages22
    JournalJournal of Petroleum Science and Engineering
    Volume27
    Issue number1-2
    DOIs
    Publication statusPublished - Jul 2000

    Keywords

    • Barite scale
    • Barium sulphate
    • Brine mixing
    • Dispersive mixing
    • Reservoir dispersivity
    • Reservoir mixing

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