Separating seismic signals produced by interfering seismic...

G - Physics – 01 – V

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G01V 1/36 (2006.01)

Patent

CA 2710437

A technique includes obtaining seismic data indicative of measure-ments acquired by seismic sensors of a composite seismic signal produced by the firings of multiple seismic sources (114). The technique includes associating mod-els that describe geology associated with the composite seismic signal with linear operators (118) and characterizing the seismic data as a function of the models and the associated linear operators (122). The technique includes simultaneously deter-mining the models based on the function (126) and based on the determined models, generating datasets. Each dataset is indicative of a component of the composite seismic signal and is attributable to a different one of the seismic sources (130).

Une technique comprend l'obtention de données sismiques représentant des mesures acquises par des capteurs sismiques à partir d'un signal sismique composite produit par le déclenchement de plusieurs sources sismiques. La technique comprend les étapes consistant à associer des modèles qui décrivent la structure géologique associée au signal sismique composite au moyen d'opérateurs linéaires et à caractériser les données sismiques en fonction des modèles et des opérateurs linéaires associés. La technique comprend les étapes consistant à déterminer simultanément les modèles sur la base de la fonction et à générer des jeux de données sur la base des modèles déterminés. Chaque jeu de données représente une composante du signal sismique composite et peut être attribué à une source différente parmi les sources sismiques.

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