A petroleum well intervention winch system comprising a high pressure confining housing (1) for a drum (2) for a rope (R) to a tool string (T), characterized by said pressure confining housing (1) having a connector (C) with an aperture (A) for said rope (R) to a top of a tool string gate chamber (G) on vertical bore BOP valves on a wellhead (WH) on said petroleum well, said rope from said tool string (T) running through said aperture (A) via a capstan (3) to said drum (2), said capstan (3) driven by a first motor (35) through a first high pressure proof magnetic coupling (34) across a wall of said housing (1), said drum (2) driven by a second motor (25) through a second high pressure proof magnetic coupling (24) across said wall of said housing (1), said capstan (3) subject to a load tension from said rope (R) from said tool string (T) in said well and provided with a hold tension on said rope (R) from said drum (2), said second motor (25) exerting a constant hold tension on rope (R) via drum (2).


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    Titel :

    Petroleum well intervention winch system


    Beteiligte:
    TALGO MORTEN (Autor:in) / HELVIK JOHN (Autor:in)

    Erscheinungsdatum :

    2016-12-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



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