Marine seismic cable handler

Details Marine seismic cable handler Marine seismic cable handler

1980-06-25

1982-02-02

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367106, 367130, 181112, 114244, G01V 138

Patent

active

043143636

ABSTRACT:
A hydraulically-powered yo-yo reel for handling a marine seismic cable in shallow water. At the beginning of a recording episode, a partially reeled-in seismic cable is released to drift to a standstill behind a ship. Data are recorded. The cable is then accelerated to match the ships's velocity. Following the initial acceleration, the cable is superaccelerated as it is partially reeled in. A microprocessor adjusts a dwell time between recording episodes to compensate for small variations in the ship's velocity.

REFERENCES:
patent: 2627930 (1953-02-01), Woods
patent: 2729300 (1956-01-01), Paslay et al.
patent: 3281767 (1966-10-01), Cryar
patent: 3286225 (1966-11-01), Huckabay et al.
patent: 3359536 (1967-12-01), Coburn
patent: 3921755 (1975-11-01), Thigpen

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