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Application of Post Acquisition Receiver Deghosting Solutions on Flat and Slanted Streamers in South AmericaNormal access

Authors: T.J. Bunting, J. Rickett, P. Caprioli, P. Caprioli, A. Raskopin, P. Munoz, M. Polanco and L. Rodriguez
Event name: Second EAGE/SBGf Workshop 2014
Session: Session VI - Case Histories
Publication date: 04 November 2014
DOI: 10.3997/2214-4609.20147414
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.46Mb )
Price: € 20

In the last ten years there has been a renewed focus on marine broadband acquisition and processing techniques, which can be applied independently or in series. In a simplistic sense the broadband acquisition solutions improve the signal to noise at the frequencies most impacted by the sea-surface ghost enabling post acquisition spectral shaping solutions. In this paper we evaluate two deghosting solutions. One which is deterministic and based solely on geometry information and one which uses a statistical approach to estimate the effective ghost response. The two techniques were evaluated on slanted and flat streamer data acquired offshore Colombia. The analysis suggests that the two techniques provide comparable results but that the statistical technique provides for some increased low frequency boosting and a flatter response through the first notch.

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