A riser (112,114) comprises a plurality of conduits (200) extending from the seabed towards the surface and having an upper end supported at a depth below the sea surface. At least some of the conduits (200) are arranged around a structural core (410). The conduits comprise an insulated production line (200), an uninsulated service line (500) providing a pigging loop with the insulated production line, and a water injection line (210).


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    Title :

    Hybrid riser tower


    Additional title:

    Hybridsteigrohrturm
    Colonne montante hybride



    Publication date :

    2016-03-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren



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