Ancillary equipment 404 is mounted to an elongated member 402 after the elongated member is deployed from a vessel (fig2, 250) but before final installation. Deployment may comprise feeding the elongated member from a storage device (fig2, 252) on board the vessel and deploying into water where it is detached from the vessel. The ancillary equipment may then be mounted while the elongated member is in a temporary position, unconnected and at or near the seabed and a support platform may aid mounting. The unconnected end 406 is tied to the seabed or a seabed structure. After ancillary equipment is mounted, the elongated member is installed. A second vessel 410, ROV 420 or AUV may be used to mount the equipment. The equipment may include buoyancy modules, vortex induced vibration strakes and clamps. The elongated member may include a riser, tubular, flexible pipe, umbilical and electric or hydraulic cable.


    Access

    Download


    Export, share and cite



    Title :

    Subsea mounting of ancillary equipment on an elongate member


    Contributors:

    Publication date :

    2021-03-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16L PIPES , Rohre / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren



    MOUNTING DEVICE FOR AN ELONGATE MEMBER

    THOMSON CRAIG RICHARD / LITTLE ANTHONY JOHN / BENNETT STEPHEN et al. | European Patent Office | 2023

    Free access

    MOUNTING DEVICE FOR AN ELONGATE MEMBER

    THOMSON CRAIG RICHARD / LITTLE ANTHONY JOHN / BENNETT STEPHEN et al. | European Patent Office | 2021

    Free access

    Launching elongate subsea structures

    BROWN PHILIP DEREK / MCEWAN ERIC FLETCHER | European Patent Office | 2024

    Free access

    LAUNCHING ELONGATE SUBSEA STRUCTURES

    BROWN PHILIP DEREK / MCEWAN ERIC FLETCHER | European Patent Office | 2023

    Free access

    Launching Elongate Subsea Structures

    BROWN PHILIP DEREK / MCEWAN ERIC FLETCHER | European Patent Office | 2021

    Free access