Marine seismic streamer with a device for damping oscillations

Details Marine seismic streamer with a device for damping oscillations Marine seismic streamer with a device for damping oscillations

1993-03-15

1995-04-04

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

1741015, 367162, 367166, G01V 138, H04B 1700

Patent

active

054043409

ABSTRACT:
The invention relates to a marine-seismic streamer having a liquid-filled tube (4) in which there are arranged, in the longitudinal direction, hauling cables and flow-obstructing devices including shaped pieces (2) which are spaced apart in the longitudinal direction for dividing the streamer into sections, and hydrophones (5). The shaped pieces (2) are of cylindrical construction with an outside diameter smaller than the inside diameter of the tube (4) such that an annular gap (9) is formed between the tube (4) and each shaped piece (2). The shaped pieces (2) have at least one annular seal (10), the outer diameter of the annular seal (10) corresponding to the inside diameter of the tube (4).

REFERENCES:
patent: 2465696 (1949-03-01), Paslay
patent: 4477887 (1984-10-01), Berni
patent: 4500980 (1985-02-01), Copeland
patent: 4660183 (1987-04-01), McGowan et al.
patent: 4736345 (1988-04-01), Keckler et al.
patent: 4955012 (1990-09-01), Bledsoe et al.
patent: 5251182 (1993-10-01), Carpenter
patent: 5274603 (1993-12-01), Zibilich et al.
Lithan Resources Systems, Alvin, Tex.; LRS-500 Streamer Cables, 8 pgs., 1981.

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