Converted-wave analysis system and method

Details Converted-wave analysis system and method Converted-wave analysis system and method

G - Physics

01

V

G01V 1/28 (2006.01) G01V 1/30 (2006.01) G01V 1/36 (2006.01)

Patent

CA 2372356

Method and systems are provided for processing c-wave data resulting in less sensitivity to errors in p-wave velocity analysis. Therefore, according to one aspect of the invention, a process is provided for processing c-wave data, the process comprising: providing zero-offset gather without a hyperbolic movement correction; performing migration on the zero-offset gather; performing velocity analysis on the migrated zero-offset gather; and performing NMO on the migrated data using the velocity from the velocity analysis.

L'invention concerne un procédé et des systèmes pour le traitement de données d'ondes C, réduisant la sensibilité aux erreurs d'analyse de célérité d'onde P. Ainsi, un aspect de l'invention concerne un procédé de traitement de données d'onde c, qui consiste à : prendre une somme à décalage zéro sans correction du mouvement hyperbolique ; faire subir une migration sur la somme à décalage zéro ; analyser la célérité sur la somme à décalage zéro migrée ; et soumettre les données migrées à un NMO, au moyen de la célérité résultant de l'analyse de célérité.

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