Time to Depth Seismic Reprocessing of Vintage Data: a Case Study in the Otranto Channel (South Adriatic Sea)

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Giuseppe Brancatelli , Edy Forlin , Nicolò Bertone , Anna Del Ben, Riccardo Geletti 


In this chapter, we present a case study focused on the reprocessing of marine seismic line MS-29, acquired in 1971 in the Otranto Channel, in the South Adriatic Sea (Italy). This line crosses the channel between South Italy and Albania, a key location for understanding the geodynamics of the North Adria Plate. The work is divided into two steps. The first step consists of a modern broadband processing sequence in the time domain that allowed us to overcome low fold problems inherent in vintage data and to obtain a pre-stack time migration seismic section. The second step focused on velocity model building and pre-stack depth migration to obtain an accurate image of the subsurface. We followed a specific workflow that uses the coherence inversion technique and both layer-based and grid tomography to achieve a reliable velocity model. The reprocessing enhances the imaging of the vintage data, allowing new insight into the geological interpretation of the Otranto Channel.




Earth Sciences, Geology, Geophysics and Seismology, Physical Sciences and Mathematics


seismic processing, vintage data, depth imaging, velocity modelling, Otranto Channel


Published: 2021-01-14 16:11

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CC BY Attribution 4.0 International

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