Total Sa

Centre National De La Recherche Scientifique

Universitë De Bordeaux

Institut Polytechnique De Bordeaux

Ecole Nationale Supérieure Des Sciences Agronomique De Bordeaux-aquitaine

Total Se

Ecole Nationale Superieure Des Sciences Agronomiques De Bordeaux Aquitaine

Guillaume Zinck

Marc Donias

Olivier Lavialle

Sébastien Guillon

Sebastien Guillon

Jacques Daniel

The invention pertains to a method for enhancing the determination, from a seismic image of at least a portion of a seismic horizon in a three-dimensional domain. The method comprises: receiving the seismic image; receiving a plurality of related control points; defining pseudo-rectangles; for each pseudo-rectangle applying a diffeomorphic transformation F: defining a new domain; transforming points of the seismic image; transforming said pseudo-rectangle into a corresponding rectangle; applying a horizon reconstruction algorithm to the transformed points, to determine a part of a transformed horizon, the reconstruction comprising solving a Poisson equation; and computing a part of the horizon, said computing comprising applying an inverse diffeomorphic transformation Fto the determined part of a transformed horizon.

Method for enhancing the determination of a seismic horizon

The invention targets in particular a method for searching for a seismic horizon in a seismic image of the subsoil. The method notably comprises the designation of two points belonging to the horizon sought, the iterative search for the best solution for the equation of the seismic horizon notably by virtue of a breakdown of this solution into two components, a pseudo-continuous component and a jump component.

Method of tracking discontinuous seismic horizons in seismic images

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Talence, France

Guillaume Zinck