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An Efficient, Compact Omni-Directional Air Gun Array for the Valhall 4D/4C Seismic SurveyNormal access

Authors: M. Saunders, D. Howe, J. Kommedal, J. Karran and D. Clayton
Event name: 66th EAGE Conference & Exhibition
Session: Seismic Acquistition
Publication date: 07 June 2004
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 371.42Kb )
Price: € 20

Summary:
H018 AN EFFICIENT COMPACT OMNI-DIRECTIONAL AIR GUN ARRAY FOR THE VALHALL 4D/4C SEISMIC SURVEY Abstract 1 An air gun source array comprising Annular Port Air Guns and a DigiSHOTâ„¢ digital source controller has been successfully deployed on the Valhall 4D/4C seismic survey in the North Sea. The source grid on Valhall comprises 50 000 shots on a 50 metre by 50 metre grid which results in a nearly uniform distribution of source-receiver offsets and azimuths. The source array is characterized by a high-output source signature that does not vary substantially for emergence angles typical of the Valhall field for all


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