A compensating rig elevator is provided to eliminate set-down weight from threaded connectors during make-up of a pipe stand and thereby provide an ability to reduce the risk of thread galling and cross-threading. The elevator may comprise one or more hoist assemblies with bail arms that deflect as the compensating rig elevator is suspended by the bail arms and a tubular is placed in the compensating rig elevator. The bail arms actuate a locking mechanism to secure the compensating rig elevator in a closed position around the tubular. The compensating rig elevator can also have compensating rams and a slip system to positively engage the tubular and bear the weight of multiple tubulars.


    Access

    Download


    Export, share and cite



    Title :

    Compensating rig elevator


    Contributors:
    TRICHE SHANE (author) / TRICHE HEATH (author)

    Publication date :

    2020-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / B66C Krane , CRANES



    COMPENSATING RIG ELEVATOR

    TRICHE SHANE / TRICHE HEATH LAWRENCE | European Patent Office | 2024

    Free access

    Compensating rig elevator

    TRICHE SHANE / TRICHE HEATH | European Patent Office | 2024

    Free access

    COMPENSATING RIG ELEVATOR

    TRICHE SHANE / TRICHE HEATH | European Patent Office | 2020

    Free access

    COMPENSATING RIG ELEVATOR

    TRICHE SHANE / TRICHE HEATH | European Patent Office | 2018

    Free access

    ELEVATOR COMPENSATING CHAIN DEVICE

    IIJIMA MAKOTO | European Patent Office | 2023

    Free access