Artículos de revistas
Multiparametric traveltime inversion
Registro en:
Studia Geophysica Et Geodaetica. Kluwer Academic/plenum Publ, v. 46, n. 2, n. 177, n. 192, 2002.
0039-3169
WOS:000175541600004
10.1023/A:1019897802348
Autor
Biloti, R
Santos, LT
Tygel, M
Institución
Resumen
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. 46 2 177 192