A petroleum well intervention winch system includes a high pressure confining housing for a drum for a rope to a tool string. The pressure confining housing has a connector with an aperture for the rope to a top of a tool string gate chamber on vertical bore BOP valves on a wellhead on the petroleum well. The rope runs through the aperture via a capstan to the drum. The capstan is driven by a first motor through a first high pressure proof magnetic coupling across a wall of the housing. The drum is driven by a second motor through a second high pressure proof magnetic coupling across the wall of the housing. The capstan is subject to a load tension from the rope and is provided with a hold tension on the rope from the drum. The second motor exerts a constant hold tension on the rope via the drum.


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    Title :

    PETROLEUM WELL INTERVENTION WINCH SYSTEM


    Additional title:

    WINDENSYSTEM FÜR ERDÖLBOHRLOCHOPERATIONEN
    SYSTÈME DE TREUIL D'INTERVENTION DANS UN PUITS DE PÉTROLE


    Contributors:
    TALGØ MORTEN (author) / HELVIK JOHN (author)

    Publication date :

    2016-03-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / B66D Haspeln , CAPSTANS



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