Seafloor-following streamer

G - Physics – 01 – V

Patent

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G01V 1/38 (2006.01)

Patent

CA 2669587

The present invention relates to seismic exploration techniques and the seismic imaging of subsurface layers, particularly apparatus for seismic exploration near the seafloor. The apparatus enables controlled-depth towing of detectors to be carried out a short distance above the seafloor. The apparatus includes a streamer depth controller and at least one altitude keeper device, attached at intervals along the length of a towed streamer. The streamer carries detectors for measuring, for example, P- and S-waves in the seafloor.

la présente invention concerne des techniques d'exploration séismique et l'imagerie séismique de couches inférieures, particulièrement un appareil pour l'exploration séismique près du fond marin. l'appareil permet le remorquage à profondeur contrôlée de détecteurs destiné à être réalisé à une courte distance au-dessus du fond marin. l'appareil comprend un dispositif de contrôle de profondeur de flûte et au moins un dispositif de maintien d'altitude, fixé selon des intervalles sur la longueur d'une flûte remorquée. la flûte supporte des détecteurs pour mesurer, par exemple, des ondes p et s dans le fond marin.

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