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    Nanoparticle tracers in calcium carbonate porous media

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    Type
    Article
    Authors
    Li, Yan Vivian
    Cathles, Lawrence M.
    Archer, Lynden A. cc
    KAUST Grant Number
    KUS-C1-018-02
    Date
    2014-07-15
    Online Publication Date
    2014-07-15
    Print Publication Date
    2014-08
    Permanent link to this record
    http://hdl.handle.net/10754/598942
    
    Metadata
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    Abstract
    Tracers are perhaps the most direct way of diagnosing subsurface fluid flow pathways for ground water decontamination and for natural gas and oil production. Nanoparticle tracers could be particularly effective because they do not diffuse away from the fractures or channels where flow occurs and thus take much less time to travel between two points. In combination with a chemical tracer they can measure the degree of flow concentration. A prerequisite for tracer applications is that the particles are not retained in the porous media as the result of aggregation or sticking to mineral surfaces. By screening eight nanoparticles (3-100 nm in diameter) for retention when passed through calcium carbonate packed laboratory columns in artificial oil field brine solutions of variable ionic strength we show that the nanoparticles with the least retention are 3 nm in diameter, nearly uncharged, and decorated with highly hydrophilic polymeric ligands. The details of these column experiments and the tri-modal distribution of zeta potential of the calcite sand particles in the brine used in our tests suggests that parts of the calcite surface have positive zeta potential and the retention of negatively charged nanoparticles occurs at these sites. Only neutral nanoparticles are immune to at least some retention. © 2014 Springer Science+Business Media.
    Citation
    Li YV, Cathles LM, Archer LA (2014) Nanoparticle tracers in calcium carbonate porous media. J Nanopart Res 16. Available: http://dx.doi.org/10.1007/s11051-014-2541-9.
    Sponsors
    This publication is based on work carried out with collaboration and support from Aramco Services Company (Project ID: ASC #660022190), for which we are most grateful. Facilities and minor support came also from Award No. KUS-C1-018-02 from the King Abdullah University of Science and Technology. Additional support was provided from general funding to L. Cathles from The International Research Institute of Stavanger.
    Publisher
    Springer Nature
    Journal
    Journal of Nanoparticle Research
    DOI
    10.1007/s11051-014-2541-9
    ae974a485f413a2113503eed53cd6c53
    10.1007/s11051-014-2541-9
    Scopus Count
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    Publications Acknowledging KAUST Support

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