Permeability estimates from poro-elastic dispersion analyses of sonic logs
Détails
ID Serval
serval:BIB_0DE66BF4F29C
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Collection
Publications
Institution
Titre
Permeability estimates from poro-elastic dispersion analyses of sonic logs
Titre de la conférence
16th European Meeting of Environmental and Engineering Geophysics , Zurich, Switzerland
Organisation
European Association of Geoscientists & Engineers
Statut éditorial
Publié
Date de publication
2010
Pages
A32
Langue
anglais
Notes
Baron2010a
Résumé
Modern sonic logging tools designed for shallow environmental and
engineering applications allow for P-wave phase velocity measurements
over a wide frequency band. Methodological considerations indicate
that, for saturated unconsolidated sediments in the silt to sand
range and source frequencies ranging from approximately 1 to 30 kHz,
the observable poro-elastic P-wave velocity dispersion is sufficiently
pronounced to allow for reliable first-order estimations of the underlying
permeability structure. These predictions have been tested on and
verified for a surficial alluvial aquifer. Our results indicate that,
even without any further calibration, the thus obtained permeability
estimates as well as their variabilities within the pertinent lithological
units are remarkably close to those expected based on the corresponding
granulometric characteristics.
engineering applications allow for P-wave phase velocity measurements
over a wide frequency band. Methodological considerations indicate
that, for saturated unconsolidated sediments in the silt to sand
range and source frequencies ranging from approximately 1 to 30 kHz,
the observable poro-elastic P-wave velocity dispersion is sufficiently
pronounced to allow for reliable first-order estimations of the underlying
permeability structure. These predictions have been tested on and
verified for a surficial alluvial aquifer. Our results indicate that,
even without any further calibration, the thus obtained permeability
estimates as well as their variabilities within the pertinent lithological
units are remarkably close to those expected based on the corresponding
granulometric characteristics.
Création de la notice
25/11/2013 18:31
Dernière modification de la notice
20/08/2019 13:35
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