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Using a seismic reflector for resolving streamer depth and sea surface profilesNormal access

Authors: E. Kragh and C. Combee
Journal name: First Break
Issue: Vol 18, No 11, November 2000 pp. 463 - 467
DOI: 10.1046/j.1365-2397.2000.00463.x
Language: English
Info: Article, PDF ( 851.79Kb )
Price: € 30

Summary:
In this short paper we show how the depth profile of a towed streamer and the shape of the sea surface above the towed streamer, at a particular instant, can be obtained from travel time and ghost notch frequency analysis on an isolated seismic reflector. The resulting streamer profiles indicate smooth long wavelength variations that do not follow the sea surface profiles. The sea surface profiles exhibit a dominant wavelength and amplitude that is consistent with an ocean wave spectrum. Both streamer and sea surface results are consistent with observation logs.


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