G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 1/38 (2006.01) G01V 1/20 (2006.01)
Patent
CA 2307557
An improved bottom cable for a seismic marine data acquisition system (10). The bottom cable (30) includes a cable section (30b) having a bus (48). The cable, along with the cable section and bus, are used to electrically connect a master control unit (40) to first and second modules (32b and 32c), respectively. The bus (48) includes first and second switches (48b and 48c), respectively, located near opposite ends of the bus. In this way, if a leak (R1) occurs in the bus, the first and second switches can be opened, thereby electrically isolating the bus and stopping the leak.
La présente invention concerne un modèle perfectionné de câble de fond destiné à un système d'acquisition sismique marine (10). Le câble de fond (30) comporte un segment de câble (30b) équipé d'un bus (48). L'ensemble formé du câble, du segment de câble, et du bus, réalise la liaison électrique entre une unité de commande maîtresse (40) et deux modules (32b, 32c). Le bus est équipé de deux commutateurs (48b, 48c) situés chacun à l'une des extrémités opposées du bus. Ainsi, s'il se produit une fuite (R1) dans le bus, les deux commutateurs peuvent s'ouvrir, isolant ainsi électriquement du bus, et arrêtant la fuite.
Carroll Paul Ellington
James Roy Wilson III
Schuler Karl Joseph
Input/output Inc.
Ion Geophysical Corporation
Ridout & Maybee Llp
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