TY - JOUR AV - none N1 - cited By 4 TI - Backus and Wyllie Averages for Seismic Attenuation SP - 165 PB - Birkhauser Verlag AG SN - 00334553 EP - 170 N2 - 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. IS - 1 ID - scholars10920 KW - Petroleum reservoir engineering; Velocity KW - Backus averaging; Fluid viscosity; High frequency HF; Quality factors; Reservoir property; Seismic attenuation; Seismic velocities; Wyllie equation KW - Seismology KW - equation; permeability; porosity; seismic attenuation; seismic velocity; viscosity Y1 - 2018/// A1 - Qadrouh, A.N. A1 - Carcione, J.M. A1 - Ba, J. A1 - Gei, D. A1 - Salim, A.M. JF - Pure and Applied Geophysics UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040219545&doi=10.1007%2fs00024-017-1676-x&partnerID=40&md5=169bad17c7923fe17f594a0fe75d609a VL - 175 ER -