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Fast Estimation Of Crs Parameters Using Local SlopesNormal access

Authors: L.T. Santos, J. Schleicher, J.C. Costa and A. Novais
Event name: 11th International Congress of the Brazilian Geophysical Society
Session: Seismic Inversion
Publication date: 24 August 2009
Organisations: SBGf
Language: English
Info: Extended abstract, PDF ( 492.41Kb )

The complete set of CRS parameters can be extracted
from seismic data by an application of modern local-slopeextraction
techniques. The necessary information about
the CRS parameters is contained in the slopes of the
common-midpoint and common-offset sections at the central
point. As demonstrated by a synthetic data example,
the slope extraction is sufficiently robust to allow for derivation
of the extracted slope field. This enables the calculation
of the CRS parameters from the extracted slopes and
their derivatives. In this way, the CRS parameter extraction
can be sped up by several orders of magnitude.

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