Well log correlation

Details Well log correlation Well log correlation

G - Physics

01

V

G01V 3/18 (2006.01) E21B 47/00 (2006.01) G01V 5/12 (2006.01) G01V 11/00 (2006.01) G06F 19/00 (2011.01)

Patent

CA 2728403

A method of automatically correlating well logs includes selecting well loops from the well logs and creating a set of possible marker positions for each well log in each well loop. From the possible marker positions, alternate marker sets are iteratively selected. A well tie error on each loop is calculated for each selected marker set, summed over all loops and minimized.

L'invention concerne un procédé de corrélation automatique de diagraphies de puits, comportant les étapes consistant à sélectionner des boucles de puits issues des diagraphies de puits et à créer un ensemble de positions possibles de marqueurs pour chaque diagraphie de puits dans chaque boucle de puits. À partir des positions possibles de marqueurs, des ensembles de marqueurs de substitution sont sélectionnés itérativement. Une erreur de raccordement de puits sur chaque boucle est calculée pour chaque ensemble de marqueurs sélectionné, sommée sur toutes les boucles et minimisée.

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