A-13 SEISMIC CREW INTERFERENCE AND PRESTACK RANDOM NOISE ATTENUATION ON 3-D MARINE SEISMIC DATA N. GÜLÜNAY and D. PATTBERG WesternGeco 10001 Richmond Avenue Houston TX 77042 USA Abstract This paper presents a method of removing strong seismic interference noise as well as random noise from shots acquired in 3-D marine surveys. This process will allow boats to reduce down time when other crews are operating in the same area. The method is applied to each frequency slice of the frequency-source-receiver volume obtained by time only Fourier transform of a small time-space (source and receiver) volume of data. These volumes overlap


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