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Challenges in presalt depth imaging of the deepwater Santos Basin, Brazil

Yan Huang, Dechun Lin, Bing Bai, Stan Roby and Cesar Ricardez
Challenges in presalt depth imaging of the deepwater Santos Basin, Brazil (in Brazil, Paulo Johann (prefacer) and Juan Soldo (prefacer))
Leading Edge (Tulsa, OK) (July 2010) 29 (7): 820-825

Abstract

Several discoveries, such as Tupi, Bem-Te-Vi, Parati, and Guara, have been announced in Santos Basin off the coast of Brazil, mostly in presalt layers. These layers were well imaged by a salt-flood volume in 2003, but distortions in the base of salt (BOS) and presalt layers were still obvious. Therefore, a constant velocity model is not adequate to capture the velocity variation inside the salt bodies, which include mobile salt and evaporites. A depth migration with a complete salt model is necessary to correctly position the reservoir structures. In this paper, we discuss the challenges in building such a velocity model and share the lessons we learned while working on a data set from the deepwater Santos Basin.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 29
Serial Issue: 7
Title: Challenges in presalt depth imaging of the deepwater Santos Basin, Brazil
Title: Brazil
Author(s): Huang, YanLin, DechunBai, BingRoby, StanRicardez, Cesar
Author(s): Johann, Pauloprefacer
Author(s): Soldo, Juanprefacer
Affiliation: CGGVeritas, Brazil
Affiliation: Petrobras, Brazil
Pages: 820-825
Published: 201007
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 10
Accession Number: 2010-077403
Categories: Applied geophysicsEconomic geology, geology of energy sources
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sects.
S34°00'00" - N05°15'00", W74°00'00" - W34°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201041
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