METHOD AND APPARATUS FOR RELEASE OF A SEISMIC ARRAY, ESPECIALLY STREAMERS IN THE EVENT OF OVERLOADING

METHOD AND APPARATUS FOR RELEASE OF A SEISMIC ARRAY, ESPECIALLY STREAMERS IN THE EVENT OF OVERLOADING

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...

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Bibliographische Detailangaben
Hauptverfasser: GJESTRUM, EINAR
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CURRENT COLLECTORS
DETECTING MASSES OR OBJECTS
ELECTRICITY
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
LINE CONNECTORS
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung: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.