The present invention relates to a method for lowering a subsea structure to be installed on the seabed into the water through the splash zone, said subsea structure comprising subsea equipment arranged on a substantially flat support base for preventing the subsea equipment to sink into the seabed. The method according to the invention comprises: lifting the subsea structure into the air in a horizontal position in which the flat support base extends substantially parallel to the horizontal plane; tilting the subsea structure while suspended in the air from the horizontal position into a tilted position in which the flat support base is angled with respect to the horizontal plane; lowering the subsea structure into the water through the splash zone in the tilted position; and tilting the subsea structure while suspended in the water below the splash zone back into the horizontal position.


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    Title :

    METHOD FOR LOWERING A SUBSEA STRUCTURE HAVING A SUBSTANTIALLY FLAT SUPPORT BASE INTO THE WATER THROUGH THE SPLASH ZONE


    Additional title:

    VERFAHREN ZUM ABSENKEN EINER UNTERWASSERSTRUKTUR MIT IM WESENTLICHEN FLACHEM TRÄGER IN WASSER DURCH DEN SPRITZBEREICH
    PROCÉDÉ POUR ABAISSER UNE STRUCTURE SOUS-MARINE, AYANT UNE BASE DE SUPPORT SENSIBLEMENT PLATE, DANS L'EAU À TRAVERS LA ZONE D'ÉCLABOUSSEMENT


    Contributors:

    Publication date :

    2020-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / E02D FOUNDATIONS , Gründungen