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Type: Artigo de periódico
Title: Multiparametric traveltime inversion
Author: Biloti, R
Santos, LT
Tygel, M
Abstract: In conventional seismic processing, the classical algorithm of Hubral and Krey is routinely applied to extract at? initial macrovelocity model that consists of a stack of homogeneous layers bounded by curved interfaces. Input for the algorithm are identified primary, reflections together with normal moveout (NMO) velocities, as derived from a previous velocity analysis conducted on common midpoint (CMP) data. This work presents a modified version of the Hubral and Krey algorithm that is designed to extend the original version in two ways, namely (a) it makes an advantageous use of previously obtained common-reflection-surface (CRS) attributes as its input and (b) it also allows for gradient layer velocities in depth. A new strategy to recover interfaces as optimized cubic splines is also proposed. Some synthetic examples are provided to illustrate and explain the implementation of the method.
Subject: CRS
hyperbolic traveltime
macrovelocity inversion
Country: EUA
Editor: Kluwer Academic/plenum Publ
Rights: fechado
Identifier DOI: 10.1023/A:1019897802348
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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