Broadband Processing of Slant Streamer Data from Offshore Tunisia

Marine seismic data acquired by a flat streamer presents notch diversity introduced by instability of source and receiver depths. Slant streamer data may benefit from further notch diversity introduced by towing receivers in a range of linearly increasing depths. The horizontal slowness shift introduced by the angle of streamer can be used to redatum the acquired wavefields. Receiver side deghosting is facilitated by the uniform angular distinction between the signal and the ghost in the τ-θ domain. We demonstrate the effectiveness of our τ-θ deghosting technique by applying it to a 3D survey acquired in Kaboudia, offshore Tunisia.