Noise-attenuating streamer-cable bulkhead

Details Noise-attenuating streamer-cable bulkhead Noise-attenuating streamer-cable bulkhead

1984-05-29

1987-09-15

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

174 99R, 1741015, G01V 138

Patent

active

046944362

ABSTRACT:
A plurality of streamer-cable bulkheads mounted within a streamer cable in cascade for radially scattering tube-wave noise from a streamer-cable. Each bulkhead consists of an annular body with conical surfaces converging at a desired angle, extending outwards from both ends of the annular body. An axial hole and a plurality of off-axial holes extending through the bulkhead for receiving therethrough, electrical conductors and stress members respectively. Noise traveling within the tube in a waveguide mode, impinges upon the conical surfaces of the cascaded bulkheads, and is reflected out of the streamer-cable jacket.

REFERENCES:
patent: 3660809 (1972-05-01), Pearson
patent: 3801725 (1974-04-01), Farish
patent: 3885286 (1975-05-01), Hill
patent: 3893063 (1975-07-01), Park et al.
patent: 3985948 (1976-10-01), Olszewski et al.
patent: 4296481 (1981-10-01), Weiss
patent: 4477887 (1984-10-01), Berni

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