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公开(公告)号：EP2883087A2
公开(公告)日：2015-06-17
申请号：EP13745135.7
申请日：2013-08-06
申请人： Total SA , Centre National de la Recherche Scientifique (CNRS) , UNIVERSITE DE BORDEAUX , École Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine , Institut Polytechnique de Bordeaux
IPC分类号： G01V1/30
CPC分类号： G06T17/05 , G01V1/30 , G01V2210/643 , G06T17/10 , G06T2207/20041 , G06T2207/20048 , G06T2207/20068 , G06T2207/30181
摘要： 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, wherein said 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; - computing a part of the horizon, said computing comprising applying an inverse diffeomorphic transformation F 1 to the determined part of a transformed horizon.
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公开(公告)号：EP3470885A1
公开(公告)日：2019-04-17
申请号：EP18206878.3
申请日：2008-11-03
申请人： Total SA
IPC分类号： G01V1/30
摘要： The processing comprises an analysis of a seismic image to estimate seismic horizons in an area of the subsurface and the calculation of an accumulation value associated with each pixel of the seismic image by accumulation along a set of estimated seismic horizons to form a synthesized image composed of accumulation values. This synthesized image is transformed to obtain a seismic representation in which signed amplitudes are allocated to the pixels of the synthesized image. The transformation comprises a convolution with a wavelet or another convolution kernel.
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