Method of harmonic noise attenuation in correlated sweep data

G - Physics – 01 – V

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G01V 1/37 (2006.01)

Patent

CA 2552874

The present invention provides a method for harmonic noise attenuation in correlated sweep data in seismic exploration. The method includes forming a plurality of correlation data subsets using a plurality of sweep data sets and a correlation reference sequence. The method further includes estimating a noise level in a correlation data set using the correlation data subsets and subtracting the estimated noise level from the correlation data set.

La présente invention concerne un procédé d'atténuation harmonique du bruit dans des données de vibration corrélées se rapportant à une prospection sismique. Le procédé consiste à former une pluralité de sous-ensembles de données de corrélation au moyen d'une pluralité de sous-ensembles de données de vibration et une séquence de référence de corrélation. Le procédé consiste en outre à évaluer une intensité du bruit dans un ensemble de données de corrélation, au moyen des sous-ensembles de données de corrélation, puis à soustraire l'intensité du bruit évaluée de l'ensemble de données de corrélation.

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