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Estimation of stress-dependent anisotropy from P-wave measurements on a spherical sample

SYSNO ASEP	0363147
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Estimation of stress-dependent anisotropy from P-wave measurements on a spherical sample
Author(s)	Nadri, D. (AU) Bóna, A. (AU) Brajanovski, M. (AU) Lokajíček, Tomáš (GLU-S)_{RID, SAI, ORCID}
Source Title	Geophysics. - : Society of Exploration Geophysicists - ISSN 0016-8033 Roč. 76, č. 3 (2011), WA91-WA100
Number of pages	10 s.
Publication form	WWW - WWW
Language	eng - English
Country	US - United States
Keywords	P-wave elastic anisotropy ; high confining stress ; Thomsen anisotropy
Subject RIV	DB - Geology ; Mineralogy
CEZ	AV0Z30130516 - GLU-S (2005-2011)
UT WOS	000293522500059
EID SCOPUS	84857241935
DOI	10.1190/1.3552703
Annotation	Stress-dependent seismic anisotropy of the overburden shale in an oil field was studied. The dependency of P-wave velocity, a, on pressure has exponential and linear components, which can be contributed to the compliant and stiff porosities. It was found that Thomsen anisotropy parameters  and  decrease exponentially with pressure and possibly reach to the intrinsic anisotropy of the clay minerals at 400 MPa.
Workplace	Institute of Geology
Contact	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Year of Publishing	2012

Number of the records: 1