Two discretisation methods have been proposed recently for the simplification of detailed gas-condensate pipeline elevation profiles. Both methods preserve the hydrodynamic behaviour of the original detailed profile and produce a suitable simplified profile for the dynamic simulation of multiphase flows. A number of operators and engineering companies have been evaluating and, in some cases, using these methods for the design of world-class multiphase transport systems. The first part of this paper summarises the key lessons learned from these first applications and concludes with a set of recommendations for the simplification of detailed pipeline elevation profiles in the context of dynamic simulation of multiphase flows. A comprehensive analysis of seabed surveys and as-laid bottom-of-pipe profiles has revealed that non-dimensional large-scale indicators can be used to develop a sensible basis for the characterisation and complexification of elevation profiles. The second part of this paper introduces a new complexification methodology which proposes to increase the roughness of coarse elevation profiles by means of non-dimensional indicators. Correlations for the determination of roughness indicators are proposed for various geographical areas.


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    Title :

    Discretisation, characterisation, and complexification of multiphase pipeline elevation profiles


    Contributors:
    Zakarian, E. (author) / Morgan, J. (author) / Holm, H. (author) / Larrey, D. (author)


    Publication date :

    2013


    Size :

    16 Seiten, Bilder, Tabellen, 4 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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