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Practical approaches for subsalt velocity model building

Junru Jiao, David R. Lowrey, John F. Willis and Ruben D. Martinez
Practical approaches for subsalt velocity model building (in Velocity estimation for depth imaging, William S. Harlan (editor), Robert T. Langan (editor) and Tamas Nemeth (editor))
Geophysics (September 2008) 73 (5, Suppl.): VE183-VE194

Abstract

Imaging sediments below salt bodies is challenging because of the inherent difficulty of estimating accurate velocity models. These models can be estimated in a variety of ways with varying degrees of expense and effectiveness. Two methods are commercially viable trade-offs. In the first method, residual-moveout analysis is performed in a layer-stripping mode. The models produced with this method can be used as a first approximation of the subsalt velocity field. A wave-equation migration scanning technique is more suitable for fine-tuning the velocity model below the salt. Both methods can be run as part of a sophisticated interactive velocity interpretation software package that makes velocity interpretation efficient. Performance of these methods has been tested on synthetic and field data examples.


ISSN: 0016-8033
EISSN: 1942-2156
Coden: GPYSA7
Serial Title: Geophysics
Serial Volume: 73
Serial Issue: 5, Suppl.
Title: Practical approaches for subsalt velocity model building
Title: Velocity estimation for depth imaging
Author(s): Jiao, JunruLowrey, David R.Willis, John F.Martinez, Ruben D.
Author(s): Harlan, William S.editor
Author(s): Langan, Robert T.editor
Author(s): Nemeth, Tamaseditor
Affiliation: Petroleum Geo-Services, Houston, TX, United States
Affiliation: Landmark Graphics, Highlands Ranch, CO, United States
Pages: VE183-VE194
Published: 200809
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 18
Accession Number: 2009-085040
Categories: Applied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Includes appendices
Illustration Description: illus.
Secondary Affiliation: Chevron, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 200946
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