Skip to Main Content
Book Chapter

Poststack velocity analysis by separation and imaging of seismic diffractions

By
Sergey Fomel
Sergey Fomel
The University ofTexas at Austin, Austin,Texas.
Search for other works by this author on:
Evgeny Landa
Evgeny Landa
OPERA, Pau, France.
Search for other works by this author on:
M. Turhan Taner
M. Turhan Taner
Rock Solid Images, Houston,Texas.
Search for other works by this author on:
Published:
January 01, 2016

Abstract

Small geologic features manifest themselves in seismic data in the form of diffracted waves, which are fundamentally different from seismic reflections. Using two field-data examples and one synthetic example, we demonstrate the possibility of separating seismic diffractions in the data and imaging them with optimally chosen migration velocities. Ourcri-teria for separating reflection and diffraction events are the smoothness and continuity of local event slopes that correspond to reflection events. For optimal focusing, we develop the local varimax measure. The objectives of this work are velocity analysis implemented in the poststack domain and high-resolution imaging of small-scale heterogeneities. Our examples demonstrate the effectiveness of the proposed method for high-resolution imaging of such geologic features as faults, channels, and salt boundaries.

You do not currently have access to this article.

Figures & Tables

Contents

Society of Exploration Geophysicists Geophysics Reprint Series

Seismic Diffraction

Kamil Klem-Musatov
Kamil Klem-Musatov
Search for other works by this author on:
Henning Hoeber
Henning Hoeber
Search for other works by this author on:
Michael Pelissier
Michael Pelissier
Search for other works by this author on:
Tijmen Jan Moser
Tijmen Jan Moser
Search for other works by this author on:
Society of Exploration Geophysicists
Volume
30
ISBN electronic:
9781560803188
Publication date:
January 01, 2016

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal