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A CRS-based Heterogeneity AttributeGold Open Access

Authors: J.H. Faccipieri, T.A. Coimbra, L.J. Gelius and M. Tygel
Event name: 76th EAGE Conference and Exhibition - Workshops
Session: WS11 - Multi-parameter Processing and Imaging
Publication date: 16 June 2014
DOI: 10.3997/2214-4609.20140590
Organisations: EAGE
Language: English
Info: Abstract, PDF ( 538.98Kb )

An attribute describing heterogeneity is proposed based on the diffracted-wave contribution. In areas of complex geology the amount of diffracted energy will increase relative the specular reflections. By use of the modified CRS technique, a reliable measure of the diffractions can be obtained. Proper scaling with the output from a conventional CRS stack gives a normalized measure of the complexity of the geology. The new attribute has possible use both in seismic texture analysis and as a weight factor employed to combine CRS based reflection- and diffraction-enhanced stacks. The potential of the heterogeneity attribute is demonstrated using seismic data from offshore Brazil.

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