Patent ID: 7295929
Filing Date: 2007-11-13
Classification: G01V

Abstract:
1. Process to determine locally the shape of geological horizons, in which there is constructed a continuous function S ij,k (t) by interpolation or approximation of the discrete seismic traces of a three-dimensional seismic matrix, said S ij,k (t)'s function being designated as a “continuous local seismic trace”, comprising the following steps: a). using as optimum offset of two adjacent continuous local seismic traces, the value of offset rendering maximal their correlation function, with optimal offset not being necessarily a whole multiple of the vertical sampling interval; b). taking as conditional neighborhood of a “central” continuous local seismic trace S c). defining for each continuous local seismic trace S d). determining the parametric coefficients a e) displaying geological horizons determined based on the parametric coefficients a