Velocity information from high-resolution seismic

Ramzy Al Zayer, Tariq Alkhalifah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A reliable and clear depth image requires accurate near-surface velocity information. Such valuable data are usually expensive to obtain from an uphole program. Here, we show that a fairly accurate model of the shallow subsurface can be obtained from high-resolution seismic data. Using conventional velocity analysis and tomographic inversion, we build a near-surface model for a real-data example. The near-surface model results in a better near-surface correction than what is obtained using conventional refraction-based static methods. The accuracy of the model is confirmed by a comparison with uphole data and the stack quality using the model.
Original languageEnglish (US)
Title of host publicationSociety of Exploration Geophysicists - 77th SEG International Exposition and Annual Meeting, SEG 2007
PublisherSociety of Exploration Geophysicistsweb@seg.org
Pages1108-1112
Number of pages5
ISBN (Print)9781604238976
StatePublished - Jan 1 2007
Externally publishedYes

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