Method and apparatus for release of a seismic array, especially

Details Method and apparatus for release of a seismic array, especially Method and apparatus for release of a seismic array, especially

1991-11-29

1993-03-30

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

439152, G01V 138

Patent

active

051990032

ABSTRACT:
Release device for a cable used during seismic surveys at sea and towed through the water behind a vessel so that in the event of the occurrence of obstacles or other occasions when it is desirable to release the cable (1) from the towing vessel, a controlled release of the cable is possible so that it is not severed, but can be recovered for further use. At one or more locations in such cables release sections (2) are inserted which contain sensors which sense loading in the section and in the event of overloading or other occasions when release is desirable, an element (5) is activated which cause a release mechanism (6) to be activated and thereby causes a split in the cable (1) at a predetermined location.

REFERENCES:
patent: 4541079 (1985-09-01), Thigpen
patent: 4707046 (1987-11-01), Strand
patent: 4823325 (1989-04-01), Cole, Jr.
patent: 4928262 (1990-05-01), Neeley et al.

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