Barium and strontium sulfate solid solution formation in relation to North Sea scaling problems

A. C. Todd, M. D. Yuan

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper presents the results of laboratory experiments carried out to investigate barium sulphate and strontium sulphate solid solution formation in multi-pressure tapoed cores. Two brines, one barium and strontium rich and the other sulphate rich, were mixed in a core plug. Pressure differentials were measured and the changing permeability distribution along the length of the core calculated. The morphology and chemical analysis of scaling crystals are presented based on Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray Analysis (EDAX). The results show the large extent of permeability damage caused by (Ba,Sr)SO4 solid solution depositing on the rock pore surface. The rock permeability decline and morphology and size of the scaling crystals indicate the influence of the supersaturations of BaSO4 and SrSO4 as well as the concentration ratio of barium ions to strontium ions.

    Original languageEnglish
    Title of host publicationProceedings: SPE Annual Technical Conference and Exhibition
    Pages193-20118200
    Number of pages20118008
    VolumePI
    Publication statusPublished - 1988
    Event1988 SPE Annual Technical Conference and Exhibition - Houston, TX, United States
    Duration: 2 Oct 19885 Oct 1988

    Conference

    Conference1988 SPE Annual Technical Conference and Exhibition
    CountryUnited States
    CityHouston, TX
    Period2/10/885/10/88

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  • Cite this

    Todd, A. C., & Yuan, M. D. (1988). Barium and strontium sulfate solid solution formation in relation to North Sea scaling problems. In Proceedings: SPE Annual Technical Conference and Exhibition (Vol. PI, pp. 193-20118200)