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|Type:||Artigo de periódico|
|Title:||Multiparametric traveltime inversion|
|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.|
|Editor:||Kluwer Academic/plenum Publ|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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