Titre
Sensitivity of shear wave splitting to fracture connectivity
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
He, Yanbin
Auteure/Auteur
Rubino, J Germán
Auteure/Auteur
Barbosa, Nicolás D
Auteure/Auteur
Solazzi, Santiago G
Auteure/Auteur
Favino, Marco
Auteure/Auteur
Chen, Tianning
Auteure/Auteur
Gao, Jinghuai
Auteure/Auteur
Holliger, Klaus
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0956-540X
Statut éditorial
Publié
Date de publication
2023-09-18
Volume
235
Numéro
3
Première page
2476
Dernière page/numéro d’article
2481
Peer-reviewed
Oui
Langue
anglais
Résumé
Shear wave splitting (SWS) is currently considered to be the most robust seismic attribute to characterize fractures in geological formations. Despite its importance, the influence of fluid pressure communication between connected fractures on SWS remains largely unexplored. Using a 3-D numerical upscaling procedure based on the theory of poroelasticity, we show that fracture connectivity has a significant impact on SWS magnitude and can produce a 90° rotation in the polarization of the fast quasi-shear wave. The simulations also indicate that SWS can become insensitive to the type of fluid located within connected fractures. These effects are due to changes of fracture compliance in response to wave-induced fluid pressure diffusion. Our results improve the understanding of SWS in fractured formations and have important implications for the detection and monitoring of fracture connectivity in hydrocarbon and geothermal reservoirs as well as for the use of SWS as a forecasting tool for earthquakes and volcanic eruptions.
PID Serval
serval:BIB_095AE2D23F29
Date de création
2023-10-06T13:43:23.529Z
Date de création dans IRIS
2025-05-20T19:03:27Z
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Nom
manuscript-0822 (1).pdf
Version du manuscrit
preprint
Licence
https://creativecommons.org/licenses/by/4.0
Taille
1.68 MB
Format
Adobe PDF
PID Serval
serval:BIB_095AE2D23F29.P001
URN
urn:nbn:ch:serval-BIB_095AE2D23F297
Somme de contrôle
(MD5):6e96df2ad48e909dc184de5fd8e09716