E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
E02D 27/52 (2006.01) E02D 7/10 (2006.01) E02D 27/42 (2006.01) E21B 7/124 (2006.01)
Patent
CA 2684068
A method of installing a structure (2) on a bed of a sea, estuary or river from a floating installation vessel (1) is described. In such a method a plurality of attachment piles (6) and corresponding installation rigs. (5) are attached to the structure (2) prior to deployment of the structure. In addition, respective umbilical control cables (7) are connected to the installation rigs (5) prior to deployment of the structure. The structure (2) is deployed from a floating vessel (1) to a bed of a sea, estuary or river, such that, when the structure is located on the bed, the umbilical control cables (7) do not support the structure or installation rigs. A single installation operation for each attachment pile is performed, in which operation an installation rig (5) is activated so as to install fully the corresponding attachment pile (6) in the bed, without removal of the umbilical control cable (7) or the installation rig (5) therefrom.
L'invention décrit le procédé d'installation d'une structure (2) sur le fond de la mer, d'un estuaire ou d'une rivière à partir d'un navire d'installation flottant (1). Dans un tel procédé, une pluralité de pieux de fixation (6) et des appareils de forage correspondants (5) sont fixés à la structure (2) avant son déploiement. De plus, des câbles de commande ombilicaux respectifs (7) sont reliés aux appareils de forage (5) avant le déploiement de la structure. La structure (2) est déployée à partir d'un navire flottant (1) vers un fond de la mer, d'un estuaire ou d'une rivière, de telle sorte que, lorsque la structure touche le fond, les câbles de commande ombilicaux (7) ne supportent ni la structure ni les appareils de forage. Pour chaque pieu de fixation, une seule opération d'installation est réalisée, au cours de laquelle l'appareil de forage (5) est activé de façon à installer complètement le pieu de fixation (6) sur le fond sous-marin, sans en retirer le câble de commande ombilical (7) ni l'appareil de forage (5).
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Tidal Generation Limited
LandOfFree
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