Curtin/CSIRO Geophysics Group Seminar, 12th August 2021

Probing nonlinear elastic properties of the subsurface using seismic waves: Theory & experiment

Date: Thursday, 12^th August, 2021
Time: 10:00 AM – 11:00 AM
Location: CSIRO/ARRC Auditorium, 26 Dick Perry Avenue, Kensington
Presenter: Valeriya Shulakova, CSIRO
Authors: Boris Gurevich, Valeriya Shulakova, Alexey Yurikov, Roman Pevzner and Konstantin Tertyshnikov

Although exploration seismology is based on linear elasticity, field studies over several decades clearly show seismic effects related to non-linear phenomena. Anomalous non-linearity of rocks may indicate weak or fractured zones, or presence of mixed fluid saturation. We outline theoretical background and give a number of field examples with the aim of exploring these effects using modern seismic acquisition equipment such as fibre-optic sensing.