Backus and Wyllie Averages for Seismic Attenuation

Backus and Wyllie equations are used to obtain average seismic velocities at zero and infinite frequencies, respectively. Here, these equations are generalized to obtain averages of the seismic quality factor (inversely proportional to attenuation). The results indicate that the Wyllie velocity is h...

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Main Authors: Qadrouh, A.N., Carcione, J.M., Ba, J., Gei, D., Salim, A.M.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.21376 /
Published: Birkhauser Verlag AG 2018
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040219545&doi=10.1007%2fs00024-017-1676-x&partnerID=40&md5=169bad17c7923fe17f594a0fe75d609a
http://eprints.utp.edu.my/21376/
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spelling utp-eprints.213762018-09-25T06:36:41Z Backus and Wyllie Averages for Seismic Attenuation Qadrouh, A.N. Carcione, J.M. Ba, J. Gei, D. Salim, A.M. Backus and Wyllie equations are used to obtain average seismic velocities at zero and infinite frequencies, respectively. Here, these equations are generalized to obtain averages of the seismic quality factor (inversely proportional to attenuation). The results indicate that the Wyllie velocity is higher than the corresponding Backus quantity, as expected, since the ray velocity is a high-frequency limit. On the other hand, the Wyllie quality factor is higher than the Backus one, following the velocity trend, i.e., the higher the velocity (the stiffer the medium), the higher the attenuation. Since the quality factor can be related to properties such as porosity, permeability, and fluid viscosity, these averages can be useful for evaluating reservoir properties. © 2017, Springer International Publishing AG. Birkhauser Verlag AG 2018 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040219545&doi=10.1007%2fs00024-017-1676-x&partnerID=40&md5=169bad17c7923fe17f594a0fe75d609a Qadrouh, A.N. and Carcione, J.M. and Ba, J. and Gei, D. and Salim, A.M. (2018) Backus and Wyllie Averages for Seismic Attenuation. Pure and Applied Geophysics, 175 (1). pp. 165-170. http://eprints.utp.edu.my/21376/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Backus and Wyllie equations are used to obtain average seismic velocities at zero and infinite frequencies, respectively. Here, these equations are generalized to obtain averages of the seismic quality factor (inversely proportional to attenuation). The results indicate that the Wyllie velocity is higher than the corresponding Backus quantity, as expected, since the ray velocity is a high-frequency limit. On the other hand, the Wyllie quality factor is higher than the Backus one, following the velocity trend, i.e., the higher the velocity (the stiffer the medium), the higher the attenuation. Since the quality factor can be related to properties such as porosity, permeability, and fluid viscosity, these averages can be useful for evaluating reservoir properties. © 2017, Springer International Publishing AG.
format Article
author Qadrouh, A.N.
Carcione, J.M.
Ba, J.
Gei, D.
Salim, A.M.
spellingShingle Qadrouh, A.N.
Carcione, J.M.
Ba, J.
Gei, D.
Salim, A.M.
Backus and Wyllie Averages for Seismic Attenuation
author_sort Qadrouh, A.N.
title Backus and Wyllie Averages for Seismic Attenuation
title_short Backus and Wyllie Averages for Seismic Attenuation
title_full Backus and Wyllie Averages for Seismic Attenuation
title_fullStr Backus and Wyllie Averages for Seismic Attenuation
title_full_unstemmed Backus and Wyllie Averages for Seismic Attenuation
title_sort backus and wyllie averages for seismic attenuation
publisher Birkhauser Verlag AG
publishDate 2018
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040219545&doi=10.1007%2fs00024-017-1676-x&partnerID=40&md5=169bad17c7923fe17f594a0fe75d609a
http://eprints.utp.edu.my/21376/
_version_ 1741196449743372288
score 11.62408

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