Method of seismic attribute generation and seismic exploration

G - Physics – 01 – V

Patent

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G01V 1/28 (2006.01) G01V 1/32 (2006.01)

Patent

CA 2297735

The present invention relates generally to the field of seismic exploration and, in more particularly, to methods of quantifying and visualizing structural and stratigraphic features in three dimensions through the use of eigenvector and eigenvalue analyses of a similarity matrix. This invention also relates to the field of seismic attribute generation and the use of seismic attributes derived from similarity matrices to detect the conditions favorable for the origination, migration, accumulation, and presence of hydrocarbons in the subsurface. Additionally, the methods disclosed herein provide a new means for analyzing unstacked seismic data to uncover AVO effects. The invention disclosed herein will be most fully appreciated by those in the seismic interpretation and seismic processing arts.

La présente invention concerne, d'une manière générale, le domaine de l'exploration sismique et, en particulier, des procédés de quantification et de visualisation de caractéristiques structurelles et stratigraphiques en trois dimensions à l'aide d'analyses de vecteur propre et d'une valeur propre d'une matrice de similarités. L'invention concerne également le domaine de la génération d'attributs sismiques et l'utilisation desdits attributs dérivés de matrices de similarités afin de détecter les conditions favorables à la formation, à la migration, à l'accumulation et à la présence d'hydrocarbures en subsurface. En outre, les procédés décrits constituent un nouveau moyen d'analyse de données sismiques non empilées afin de découvrir les effets des variations d'amplitude avec décalage (AVO). L'invention sera très appréciée par les spécialistes de l'interprétation et du traitement sismique.

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