A device for hydraulically operating a drive wheel of a wellbore tractor has, in certain embodiments, at least one cam and a rotatable assembly arranged to be rotatable with respect to the cam about an axis of rotation. The rotatable assembly has at least one piston. The device also has a chamber and at least one supply port for supplying hydraulic fluid from the chamber to the piston for energizing the piston, the supply port being arranged to be moved between first and second positions relative to the cam. In the first position, the piston can connect to the supply port and be energized to impart force against the cam for producing forward rotation of the assembly. In the second position, the piston can connect to the supply port and be energized to impart force against the cam for producing reverse rotation of the assembly. Related distributor assembly, wellbore tractor, and method are also described.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Device for Hydraulically operating a drive wheel of a wellbore tractor, e.g a motor, and related tractor, wellbore string, and method


    Erscheinungsdatum :

    06.01.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    WELLBORE TRACTOR CHARGING STATION

    FRIPP MICHAEL LINLEY / ZHANG WEI / BALASUBRAMANIAN ASWIN | Europäisches Patentamt | 2024

    Freier Zugriff

    WELLBORE TRACTOR INCLUDING A TRACTOR POWER RECEIVE MODULE

    FRIPP MICHAEL LINLEY / ZHANG WEI / BALASUBRAMANIAN ASWIN | Europäisches Patentamt | 2024

    Freier Zugriff

    PROPULSION UNIT FOR WELLBORE TRACTOR TOOL

    Europäisches Patentamt | 2021

    Freier Zugriff

    Downhole tractor for use in a wellbore

    FLECKENSTEIN WILLIAM W / CAMPBELL CHRISTOPHER NORDIN / BELL SEAN H et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Four-wheel-drive-wheel tractor

    YU JIANSHUAI / ZHAO HU / ZHANG HONGGUANG et al. | Europäisches Patentamt | 2023

    Freier Zugriff