Seismic data processing method for RMO picking
AssigneeCGG Veritas SA
InventorsRisto Siliqi, Philippe Herrmann
Life of this patent
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Abstract
The invention relates to a method of processing seismic data, the said seismic data comprising a gather of seismic traces organised according to one or several acquisition parameters, comprising the steps of: a) defining an equation for an RMO curve as a combination of elementary functions of the acquisition parameter(s), b) determining an RMO curve from the equation of step (a) as a combination of orthogonal elementary functions c) for a given time or at a given depth, determining the coefficients of the combination that optimise the semblance of traces along the RMO curve.
Claims8
Software product for processing of seismic data comprising a gather of seismic traces organized according to one or several parameters, said software including a medium on which programming means are recorded to be read by a computer to control the computer so that it executes the steps of:
- a) determining an RMO curve by picking in the gather of seismic traces,
- b) defining an equation for the RMO curve, as a combination of elementary functions of the acquisition parameter(s),
- c) orthogonalising the elementary functions to determine an RMO curve as a combination of orthogonal elementary functions,
- d) for a given time or at a given depth, determining the coefficients of the combination that optimize the semblance of tracing along the RMO curve,
- e) processing the seismic traces in view of these coefficients.
Dependencies are inferred from the claim text.