Iy. Belyaeva et al., COMPARISON OF LINEAR AND NONLINEAR ELASTIC-MODULI FOR RESERVOIR ROCK BY USE OF A GRANULAR MEDIUM MODEL, The Journal of the Acoustical Society of America, 99(3), 1996, pp. 1360-1365
The variations of linear and nonlinear elastic parameters as a functio
n of initial stress and material structure are considered using a mode
l of a granular medium with fluid pore filling. Examples of such varia
tions for some geological conditions interesting for seismoprospecting
are presented. It is demonstrated that the nonlinear parameter may be
used in exploration seismology as a much more sensitive characteristi
c compared with conventionally exploited linear moduli. (C) 1996 Acous
tical Society of America.