A coiled tubing injector (100), rollers (152) on the backside of grippers (106) on a gripper chain (102, 104) pass over at least one shallow groove or depression formed in, or gap between segments of, a planar roller contact surface of a skate (146, 148), thereby momentarily removing or reducing the force being applied by the skate (146, 148) to the grippers (106) as the grippers (106) pass through at least one predetermined location within a gripping zone of the coiled tubing injector (100). The reduction or removal of the force on the grippers (106) allows the grippers (106) to reset their positions on the tubing (109) at one or more predetermined locations in order to accommodate changes in the strain caused by changes in stress as the tubing (109) moves through the injector (100).


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Coiled tubing injector with strain relief


    Weitere Titelangaben:

    Einführungsvorrichtung für gewickelten Rohrstrang mit Spannungsentlastung
    Injecteur de tube enroulé avec dispositif de relâchement de contraintes


    Beteiligte:

    Erscheinungsdatum :

    2015-10-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



    COILED TUBING

    SAE Technical Papers | 1960


    Coiled tubing trailer

    LU MIKE XIAOLEI / WELK JOSEPH | Europäisches Patentamt | 2023

    Freier Zugriff

    TRANSPORT TRAILER REEL AND INJECTOR SHIFT FOR MAXIMIZING COILED TUBING LOAD DISTRIBUTION

    BEHRENS RANDALL DEAN / MEYER JEFFREY DEANE | Europäisches Patentamt | 2019

    Freier Zugriff

    COILED TUBING TRAILER

    LU MIKE XIAOLEI / WELK JOSEPH | Europäisches Patentamt | 2022

    Freier Zugriff

    Coiled tubing and vessel motions for riserless coiled tubing systems

    Hoen, Christopher / Haheim, Svein A. | Tema Archiv | 2004