Hydrophone module for a marine seismic cable

H - Electricity – 04 – R

Patent

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Details

H04R 1/44 (2006.01) G01V 1/18 (2006.01) G01V 1/38 (2006.01)

Patent

CA 2278240

A low-profile hydrophone module for a marine seismic system (10) includes a block (108) having a curved surface (118) and a receiving surface (130) in which an open cavity (134) is disposed, a hydrophone assembly, to which lead wires (154) attach, disposed in the cavity, lead wires which pass out of the cavity, and a sound-transmitting material which fills the cavity. In another feature, the hydrophone assembly includes a hydrophone and a baffle material (162), the baffle material enclosing the hydrophone, the cavity is sealed aroud the lead wires, the sound-transmitting material is oil (170), and a cover sealingly affixes over the cavity. In another feature, the hydrophone assembly includes a hydrophone and a frame, the cavity is sealed around the lead wires, the sound-transmitting material is a potting sealant (135), and a cover sealingly affixes over the cavity.

Un module hydrophone profilé, destiné à un système sismique sous-marin (10), comprend un bloc (108), qui présente une surface courbe (118) et une surface réceptrice (130) dans laquelle se trouve une cavité ouverte (134); un ensemble hydrophone, sur lequel se fixent des câbles de connexion (154) disposés à l'intérieur de la cavité et sortant de ladite cavité; et un matériau transmetteur acoustique, qui remplit la cavité. Dans un autre aspect, l'ensemble hydrophone comprend un hydrophone et un matériau séparateur (162) entourant l'hydrophone, la cavité est hermétiquement fermée sur les câbles de connexion, le matériau transmetteur acoustique est de l'huile (170) et une enveloppe est fixée hermétiquement sur la cavité. Dans un autre aspect, l'ensemble hydrophone comprend un hydrophone et un cadre, la cavité est hermétiquement fermée sur les câbles de connexion, le matériau transmetteur acoustique est un matériau d'étanchéité et de remplissage (135), et une enveloppe est fixée hermétiquement sur la cavité.

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