Barium and strontium sulfate solid-solution scale formation at elevated temperatures

A. C. Todd, M. D. Yuan

    Research output: Contribution to journalArticle

    Abstract

    Barium sulfate scale occurrence is a severe production problem in North Sea oil operations. Barium sulfate is often accompanied by strontium sulfate to form a completely mixed scale called (Ba,Sr)SO4 solid solution. This paper describes a laboratory study carried out at 70°C to examine (Ba,Sr)SO4 solid-solution scale formation in porous media and the formation damage resulting from the mixing of two incompatible waters. The paper is a continuation of the previously reported room-temperature work. Results of experiments carried out at the elevated temperatures again demonstrate that substantial scale deposition can occur in a rock core and can cause considerable decline of rock permeability as a result of concurrent flowing of two incompatible waters.

    Original languageEnglish
    Pages (from-to)85-92
    Number of pages8
    JournalSPE Production Engineering
    Volume7
    Issue number1
    Publication statusPublished - Feb 1992

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    barium
    strontium
    solid solution
    sulfate
    temperature
    rock
    porous medium
    permeability
    water
    damage
    oil
    experiment

    Cite this

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    Barium and strontium sulfate solid-solution scale formation at elevated temperatures. / Todd, A. C.; Yuan, M. D.

    In: SPE Production Engineering, Vol. 7, No. 1, 02.1992, p. 85-92.

    Research output: Contribution to journalArticle

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