Method for detecting geological discontinuity in an...

G - Physics – 01 – V

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G01V 1/28 (2006.01)

Patent

CA 2277788

The invention concerns a method for detecting geological discontinuity in an environment using an optical flow, characterised in that it consists in: selecting in the seismic block a section containing at least one discontinuity, said section constituting a seismic image; computing a rough optical flow on said seismic image to obtain a first representation of an optical flow wherein the discontinuity constitutes a moving front; and in smoothing by non-supervised dynamic cluster process said optical flow representation, so as to obtain a second optical flow representation wherein said discontinuity shows accentuated contrasts.

Elle est caractérisée en ce qu'elle consiste à: sélectionner dans le bloc sismique au moins une section comprenant au moins une discontinuité, ladite section constituant une image sismique, calculer un flux optique brut sur ladite image sismique de manière à obtenir une première représentation du flux optique dans laquelle la discontinuité constitue un front de mouvement, et à lisser par le procédé des nuées dynamiques non supervisé ladite représentation du flux optique, de manière à obtenir une deuxième représentation du flux optique dans laquelle ladite discontinuité présente des contrastes accentués.

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