eprintid: 10920
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/09/20
datestamp: 2023-11-09 16:37:32
lastmod: 2023-11-09 16:37:32
status_changed: 2023-11-09 16:32:31
type: article
metadata_visibility: show
creators_name: Qadrouh, A.N.
creators_name: Carcione, J.M.
creators_name: Ba, J.
creators_name: Gei, D.
creators_name: Salim, A.M.
title: Backus and Wyllie Averages for Seismic Attenuation
ispublished: pub
keywords: Petroleum reservoir engineering; Velocity, Backus averaging; Fluid viscosity; High frequency HF; Quality factors; Reservoir property; Seismic attenuation; Seismic velocities; Wyllie equation, Seismology, equation; permeability; porosity; seismic attenuation; seismic velocity; viscosity
note: cited By 4
abstract: 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.
date: 2018
publisher: Birkhauser Verlag AG
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040219545&doi=10.1007%2fs00024-017-1676-x&partnerID=40&md5=169bad17c7923fe17f594a0fe75d609a
id_number: 10.1007/s00024-017-1676-x
full_text_status: none
publication: Pure and Applied Geophysics
volume: 175
number: 1
pagerange: 165-170
refereed: TRUE
issn: 00334553
citation:   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.  ISSN 00334553