A method of processing vertical seismic profile data using...

Details A method of processing vertical seismic profile data using... A method of processing vertical seismic profile data using...

G - Physics

01

V

G01V 1/42 (2006.01)

Patent

CA 2409094

A method of applying an effective velocity model to vertical seismic profile (VSP) seismic data comprises correcting for offset using a non-hyperbolic effective velocity model so as to take account of the earth's layering and anisotropy. One preferred non-hyperbolic model for the relationship between offset and travel time is: formula (I) where t is the travel time of seismic energy from the source to the receiver, x is the offset between the source and the receiver, and z is the depth of the receiver.

L'invention concerne un procédé relatif à l'application d'un modèle de vitesse efficace à des données de profil sismique vertical, qui consiste à corriger un décalage en utilisant un modèle de vitesse efficace non hyperbolique, afin de tenir compte de la structure en couches et de l'anisotropie de la Terre. Selon un mode de réalisation préféré, la relation entre le décalage et le temps de déplacement est (I). Dans cette formule, t est le temps de déplacement de l'énergie sismique depuis la source au récepteur, x est le décalage entre la source et le récepteur, et z est la profondeur du récepteur.

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