Method and system for controlling streamers

G - Physics – 01 – V

Patent

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G01V 1/38 (2006.01)

Patent

CA 2739990

A method and system for controlling the shape and separation of an arrangement of streamers towed behind a survey vessel (10). Each streamer is steered laterally by lateral steering devices (16) positioned along its length at specific nodes. Each streamer is driven by its lateral steering devices to achieve a specified separation from a neighboring streamer. One of these actual streamers, used as a reference by the other actual streamers, is steered to achieve a specified separation from an imaginary, or ghost, streamer virtually towed with the actual streamers.

La présente invention concerne un procédé et un système pour commander la forme et la séparation dun arrangement de flûtes marines remorquées derrière un navire hydrographique. Chaque flûte marine est guidée latéralement par des dispositifs de guidage latéral positionnés le long de sa longueur en des nuds spécifiques. Chaque flûte marine est commandée par ses dispositifs de guidage latéral afin dêtre séparée de manière spécifiée dune flûte marine voisine. Une de ces flûtes marines réelles, utilisée en tant que référence par les autres flûtes marines réelles, est guidée afin dobtenir dêtre séparée de manière spécifiée dune flûte marine imaginaire, ou fantôme, remorquée virtuellement avec les flûtes marines réelles.

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