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Exploratory-scale OBN seismic acquisition in Santos BasinNormal access

Authors: D. Ferreira, A. Martinez, C. Costa, F. Jouno and A. Khalil
Event name: First EAGE Workshop on Pre-Salt Reservoir: from Exploration to Production
Session: Session IIIA
Publication date: 06 December 2019
DOI: 10.3997/2214-4609.201903458
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 4.74Mb )
Price: € 20

Santos Basin is well known for some of the largest pre-salt oil and gas fields in the world. For oil fields in production, OBN has emerged as the solution to improve the pre-salt images. It’s rich low frequency, full-azimuth coverage and long-offsets are ideal for velocity model building using FWI. The acquisition effort of conventional OBN layouts makes it unsuitable for large-scale exploration purposes. In this case, the use of sparse OBN acquisition for velocity model building together with NAZ streamer data for imaging can improve our understanding of complex pre-salt plays and fields during the exploration phase.

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