Determination of notional signatures

Details Determination of notional signatures Determination of notional signatures

G - Physics

01

V

G01V 1/38 (2006.01) G01V 1/16 (2006.01) G01V 1/22 (2006.01) G01V 1/28 (2006.01)

Patent

CA 2755476

A method of determining the signature of a seismic source array comprises determining a notional signature of at least one source of an array of n seismic sources from measurements of the emitted wavefield from the array made at 2n independent locations and from the relative positions of the sources of the array and the 2n independent locations. The notional signature of a source may be deter-mined from the difference (or some other function) of the measurements of the emit-ted wavefield made by the two sensors associated with that source.

L'invention concerne un procédé de détermination de la signature d'un réseau de sources sismiques, comportant les étapes consistant à déterminer une signature virtuelle d'au moins une source d'un réseau de n sources sismiques à partir de mesures du champ d'ondes émanant du réseau, relevées en 2n emplacements indépendants, et à partir des positions relatives des sources du réseau et des 2n emplacements indépendants. La signature virtuelle d'une source peut être déterminée à partir de la différence (ou d'une autre fonction) des mesures du champ d'ondes émis relevées par les deux capteurs associés à la source en question.

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