relation: https://khub.utp.edu.my/scholars/10920/ title: Backus and Wyllie Averages for Seismic Attenuation creator: Qadrouh, A.N. creator: Carcione, J.M. creator: Ba, J. creator: Gei, D. creator: Salim, A.M. 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. publisher: Birkhauser Verlag AG date: 2018 type: Article type: PeerReviewed identifier: 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 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040219545&doi=10.1007%2fs00024-017-1676-x&partnerID=40&md5=169bad17c7923fe17f594a0fe75d609a relation: 10.1007/s00024-017-1676-x identifier: 10.1007/s00024-017-1676-x