Schlumberger

Industry Article: Marine Broadband Case Study Offshore China

Marine Broadband Case Study Offshore China
Publication: First Break
Volume: 29
Publication Date: 09/01/2011

Dual tow-depth acquisition configurations are used to mitigate the band-limiting effect of the sea-surface ghost in marine streamer surveys. Here we report on the analysis of a 2D broadband marine seismic project acquired offshore China. The deployment configuration included over/under sources and three streamers towed at different depths (5, 17, and 23 m). This configuration allowed not only for analysis of dual tow depth as a method for increasing bandwidth, but also for evaluation of two distinct dual tow-depth combinations, over/under and sparse-under.



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