A method of handling a discrete elongate subsea element of determinate length, such as a spool of rigid pipe is disclosed. The method includes shortening a tensile chord system acting on longitudinally-spaced locations on the element to apply longitudinally-compressive forces to the element. The compressive forces bend the element along its length against elastic recovery force to shorten the span of the element. One end of the element is anchored at a first anchorage before or after the element is bent. The other end of the element is anchored at a second anchorage, after the element is bent and while the element remains bent. The method is apt to be used during installation of the element, where the anchorages are both underwater, and during transportation of the element, where the anchorages are hang-off platforms of a surface vessel.
TRANSPORTATION AND INSTALLATION OF ELONGATE SUBSEA ELEMENTS
TRANSPORT UND INSTALLATION VON LÄNGLICHEN UNTERSEEISCHEN ELEMENTEN
TRANSPORT ET INSTALLATION D'ÉLÉMENTS SOUS-MARINS ALLONGÉS
2018-08-01
Patent
Electronic Resource
English
Transportation and Installation of Elongate Subsea Elements
European Patent Office | 2017
|Transportation and installation of elongate subsea elements
European Patent Office | 2018
|