SEG Technical Program Expanded Abstracts 2012 2012
DOI: 10.1190/segam2012-1489.1
|View full text |Cite
|
Sign up to set email alerts
|

Attenuation analysis for heterogeneous transversely isotropic media

Abstract: Attenuation coefficients obtained from seismic data may provide sensitive attributes for reservoir characterization and increase the robustness of AVO (amplitude variation with offset) analysis. Here, we present an algorithm for ray tracing in attenuative anisotropic media based on the methodology ofCervený and Psencik. Both kinematic and dynamic ray tracing are carried out in an elastic reference medium, with the attenuation terms incorporated as perturbations along the ray. Numerical examples for smoothly va… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
5
0

Year Published

2013
2013
2014
2014

Publication Types

Select...
1
1

Relationship

2
0

Authors

Journals

citations
Cited by 2 publications
(5 citation statements)
references
References 28 publications
0
5
0
Order By: Relevance
“…The influence of attenuation is modeled using perturbation theory, which is valid for weakly dissipative media. Numerical examples illustrating the accuracy of the perturbation approach can be found in Shekar and Tsvankin (2012). It is well known that the presence of attenuation leads to velocity dispersion, which causes phase distortions of seismic signals.…”
Section: Discussionmentioning
confidence: 99%
See 4 more Smart Citations
“…The influence of attenuation is modeled using perturbation theory, which is valid for weakly dissipative media. Numerical examples illustrating the accuracy of the perturbation approach can be found in Shekar and Tsvankin (2012). It is well known that the presence of attenuation leads to velocity dispersion, which causes phase distortions of seismic signals.…”
Section: Discussionmentioning
confidence: 99%
“…The ray tracing is performed in the frequency domain and parametrized by the real-valued stiffness tensor for the reference elastic medium and by the complex-valued stiffness tensor for the attenuative medium. The beams are constructed in the reference elastic medium, and the dissipation factor t à is found as a perturbation along the central ray (Červený and Pšenčik, 2009;Shekar and Tsvankin, 2012). The weighting function Φðθ 0 Þ for the summation of Gaussian beams is also calculated in the reference elastic medium.…”
Section: Methodsmentioning
confidence: 99%
See 3 more Smart Citations