Tauet marint seismisk undersøkelsessystem med posisjonskontroll av de seismiske kildene

A seismic survey system includes a winch having a winch cable coupleable to a source array towable between two deflected lead-ins, a positioning system for determining a current position of the source array and a controller for adjusting the winch to modify the current position of the source array t...

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Bibliographic Details
Main Authors Howlid, Martin, Singh, Rohitashva, Storteig, Eskild
Format Patent
LanguageNorwegian
Published 14.11.2016
Subjects
DETECTING MASSES OR OBJECTS
EQUIPMENT FOR SHIPPING
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PERFORMING OPERATIONS
PHYSICS
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
TESTING
TRANSPORTING
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Summary:A seismic survey system includes a winch having a winch cable coupleable to a source array towable between two deflected lead-ins, a positioning system for determining a current position of the source array and a controller for adjusting the winch to modify the current position of the source array to a desired crossline position. The winches may be attached to the deflected lead-ins or mounted on a tow vessel. The winches exert lateral forces on the source array, derived from the deflected lead-ins, to control the inline position of the source array. A method includes positioning a seismic source array in tow behind a vessel comprises determining a current position of the source array and adjusting a lateral force applied to the source array to move the source array to a desired crossline position. Optionally, by adjusting the gun cable winch, the inline position may be controlled.
Bibliography:Application Number: NO20150001033