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3D Q Tomographic Inversion Using Adaptive Centroid Frequency Shift for Compensating Absorption and DispersionNormal access

Authors: Y. He, K. Xin and Y. Xie
Event name: EAGE Workshop on Seismic Attenuation
Session: Estimation from Field Data: Surface Seismic
Publication date: 28 October 2013
DOI: 10.3997/2214-4609.20131848
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 4.1Mb )
Price: € 20

In this paper, we propose a new Q tomographic inversion approach using centroid frequency shift information. An adaptive correction is applied to the observed centroid frequency to account for any deviation from the explicit relationship through tabulating the absorption effect for different accumulated dissipation time. These adaptively corrected centroid frequency shift data will then be fed to reconstruct the attenuation distribution tomographically. We will demonstrate how our approach can accurately estimate Q model and can be included in the Q compensation process to fully account for attenuation and dispersion.

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