Attenuation of high energy marine towed‐streamer noise

Marine seismic data have been traditionally contaminated by bulge waves propagating along the streamers that were generated by tugging and strumming from the vessel, paravanes, tail buoys, and lead-in cables. With the progress of streamer technology bulge-wave interference has been significantly reduced. However, weather and flow noise still affects marine seismic data. The level of cross-flowinduced noise is increased when the data are acquired during turns or along circles, like in Coil shooting, and when marine currents are strong. In this paper, we present a new technique to attenuate towed-streamer noise acquired in these conditions. The method has been used successfully to process coil and wide-azimuth data in the Gulf of Mexico and offshore Brazil.