We present a theoretical model describing the agglomeration process between hydrate particles in systems composed of water in crude oil emulsions. This model allows prediction of the evolution of physical properties of the liquid phase during hydrate formation as the apparent viscosity, the density and the fraction of water converted into hydrate. Results from this model are compared with experimental results obtained with an acidic crude oil in a 2'' x 140 m multiphase pilot loop under steady state flow conditions. The kinetics of gas dissolution in the oil phase depends on flow conditions. Under liquid flow conditions, contact between the liquid phase and the gas phase takes place, in the pilot loop, only in the separator. In real pipelines, this mechanism can be encountered during shutdown and at the beginning of start-up. Under steady state multiphase flow conditions, kinetics of gas dissolution can be neglected. We can notice that the lower the temperature of formation, the smaller the characteristic time of hydrate formation.


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    Titel :

    Model of hydrates agglomeration - application to hydrates formation in an acidic crude oil


    Beteiligte:
    Palermo, T. (Autor:in) / Fidel-Dufour, A. (Autor:in) / Maurel, P. (Autor:in) / Peytavy, J.L. (Autor:in) / Hurtevent, C. (Autor:in)


    Erscheinungsdatum :

    2005


    Format / Umfang :

    16 Seiten, 5 Bilder, 2 Tabellen, 15 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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