Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Reexamination Certificate
2006-05-08
2009-06-16
Lobo, Ian J (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Offshore prospecting
C367S154000
Reexamination Certificate
active
07548486
ABSTRACT:
A seismic streamer includes a jacket covering an exterior of the streamer. At least one strength member extends along the length of the jacket. The strength member is disposed inside the jacket. At least one seismic sensor is disposed in an interior of the jacket. An acoustically transparent material fills void space in the interior of the jacket. At least one longitudinally compressible element is disposed at a selected position along the streamer. The longitudinally compressible element fills substantially all void space within a cross-section of the interior of the jacket to separate the material into two compartments, thus attenuating transmission of acoustic waves in the material across the element.
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S.P. Beerens, S. P. Van Ijsselmuide, C. Volwerk, “Flow Noise Analysis of Towed Sonar Arrays”, UDT99—Conference Proceedings Undersea Defense Technology, Jun. 29-Jul. 1, 1999, Nice, France, Nexus Media Limited, Swanley, Kent.
Fagin Richard A.
Lobo Ian J
PGS Geophysical AS
Thigpen E. Eugene
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