Seismic attenuation: effects of interfacial impedance on wave-induced pressure diffusion

Détails

ID Serval
serval:BIB_91F89C0C58ED
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Seismic attenuation: effects of interfacial impedance on wave-induced pressure diffusion
Périodique
Geophysical Journal International
Auteur(s)
Qi Q., Müller  T.M., Rubino  J.G.
ISSN
1365-246X
0956-540X
Statut éditorial
Publié
Date de publication
2014
Peer-reviewed
Oui
Volume
199
Pages
1677-1681
Langue
anglais
Résumé
Seismic attenuation and dispersion in layered sedimentary structures are often interpreted in terms of the classical White model for wave-induced pressure diffusion across the layers. However, this interlayer flow is severely dependent on the properties of the interface separating two layers. This interface behaviour can be described by a pressure jump boundary condition involving a non-vanishing interfacial impedance. In this paper, we incorporate the interfacial impedance into the White model by solving a boundary value problem in the framework of quasi-static poroelasticity. We show that the White model predictions for attenuation and dispersion substantially change. These changes can be attributed to petrophysically plausible scenarios such as imperfect hydraulic contacts or the presence of capillarity.
Mots-clé
Seismic attenuation, Wave propagation, Acoustic properties
Web of science
Site de l'éditeur
Création de la notice
16/07/2018 15:45
Dernière modification de la notice
20/07/2018 6:12
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