Ocean bottom seismic sensor cable system including...

Details Ocean bottom seismic sensor cable system including... Ocean bottom seismic sensor cable system including...

2007-07-30

2010-10-26

Hellner, Mark (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Railway vehicle

C701S120000, C174S101500

Reexamination Certificate

active

07822515

ABSTRACT:
An ocean bottom cable system includes a sensor cable configured to be extended from a vessel to the bottom of the body of water. The sensor cable includes a plurality of seismic sensor units at spaced apart locations. A lead in cable is coupled at a to at least one of the vessel and a buoy, and to an aft lead in cable segment. The segment includes a cable loop to compensate water-caused motion of the lead in cable substantially without moving the sensor units. A first swivel is disposed between a forward end of the sensor cable and an aft end of the aft lead in cable segment. The first swivel enables relative rotation between the sensor cable and the segment. At least a second swivel is disposed between the second end of the lead in cable and a forward end of the aft lead in segment.

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patent: 2 339 753 (2000-02-01), None

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