Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1987-03-27
1988-10-04
Steinberger, Brian S.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367 20, 1741015, 174 21CA, G01V 138
Patent
active
047759623
ABSTRACT:
A fluid filled marine seismic streamer employs a plurality of hydrophones spaced apart along its length to detect seismic reflection signals from subsurface formations below a water layer. A plurality of fluid blocking members are also spaced apart along the length of the streamer. A plurality of flow through spacers having varying flow through apertures are positioned between each hydrophone adjacent to a fluid blocking member that generates pressure pulses in the fill fluid of significant magnitude to be detected by such hydrophone. The size of the flow through apertures of such spacers progressively increases in a direction leading from the fluid blocking member toward the hydrophone.
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U.S. patent application Ser. No. 031,055, Keckler et al., filed 3/27/87, Marine Seismic Streamer Stretch Section Employing Fluid Blocking Spacers, Grp 221, Mobil Dkt 3870.
U.S. patent application Ser. No. 031,056, Keckler et al., filed 3/27/87, Marine Seismic Streamer Employing Variable Hydrophone Density, Grp. 221, Mobil Docket 3874.
Keckler William G.
Zachariadis Robert G.
Gilman Michael G.
Hager Jr. George W.
McKillop Alexander J.
Mobil Oil Corporation
Steinberger Brian S.
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