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Visualization of Ultra-Weak Diffractors based on Vector Pair RTMNormal access

Authors: G. Erokhin, A. Danilin and M. Kozlov
Event name: 80th EAGE Conference and Exhibition 2018
Session: Poster: Diffraction Modelling and Imaging A
Publication date: 11 June 2018
DOI: 10.3997/2214-4609.201801648
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 673.33Kb )
Price: € 20

Summary:
The important problem for RTM-like methods is detecting diffractors on the background of the strong reflections . Convectional RTM images has original artefacts because the method RTM is based on the wave-equation. For overcoming such interference the regularization is performed by filtration in some extended space of seismic parameters. Method VPRTM in detail analyses the amplitudes and phases of two interconnected vectors: the particle velocity vector of the incident wave and the generated vector of the reflected or scattered wave. The new subsurface images, obtained by VPRTM method are more informative and precise than the conventional RTM images. The proposed approach demonstrates the high accuracy at the detecting weak diffractors on the background of strong reflections. Method VPRTM is perspective for the carrying out the precision analysis in the AVO, Dip, Frequency, Impedance, Reflectivity and Diffractivity procedures simultaneously.


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