Method for determining geological information related to a...

Details Method for determining geological information related to a... Method for determining geological information related to a...

G - Physics

01

V

G01V 1/28 (2006.01)

Patent

CA 2712465

A method of determining geological information related to a subsurface volume. In one embodiment, the method comprises obtaining a seismic information related to a subsurface volume; determining a horizon volume that automatically maps the seismic information into a flattened volume, wherein one axis of the flattened volume corresponds to chronostratigraphic time, and wherein horizons represented by the seismic information are automatically accounted for in the horizon volume, and are shifted by the horizon volume into the flattened volume to be substantially planar and substantially perpendicular to the axis of the flattened volume that corresponds to chronostratigraphic time; determining a derivative of the horizon volume with respect to chronostratigraphic time; and determining geological information related to the subsurface volume based on the derivative of the horizon volume with respect to chronostratigraphic time.

La présente invention concerne un procédé permettant de déterminer de l'information géologique se rapportant à un volume souterrain. Selon un mode de réalisation de ce procédé, on commence par se procurer une information sismique se rapportant à un volume souterrain. On détermine ensuite un volume horizontal permettant d'appliquer automatiquement à un volume aplati l'information sismique. L'un des axes du volume aplati correspond au temps chronostratigraphique. Les horizons représentés par l'information sismique sont automatiquement intégrés dans le volume horizontal qui les écrase en un volume aplati correspondant au temps chronostratigraphique. On détermine ensuite une dérivée du volume horizontal, fonction du temps chronostratigraphique. Enfin, pour déterminer l'information géologique se rapportant au volume souterrain, on part de la dérivée du volume horizontal, fonction du temps chronostratigraphique.

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