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Kinematic and dynamic characteristics of seismic pulses in porous-fractured rocks with effective spatial wave dispersion

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Authors
Glubokovskikh, Stanislav
Rok, V.
Date
2012
Type
Conference Paper

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Glubokovskikh, S. and Rok, V. 2012. Kinematic and dynamic characteristics of seismic pulses in porous-fractured rocks with effective spatial wave dispersion, in Proceedings of the 5th EAGE International Conference and Exhibition on Geosciences: Making the Most of the Earth’s Resources, Apr 2-5 2012. St. Petersburg, Russia: European Association of Geoscientists and Engineers.
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Saint Petersburg 2012 - Geosciences: Making the Most of the Earth's Resources
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Department of Exploration Geophysics
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Abstract

This work concerns with seismic pulses propagation in porous-fractured rocks. Such geological media could possess strong macroscopic spatial dispersion of seismic waves. Results of physical modelling are compared with theoretical estimations of group velocities based on linear slip model of fluid-saturated fracture. They are in good agreement. Computer 3D full waveform simulation of compressional pulses reflection on the boundary of isotropic and transverse isotropic media with horizontal symmetry axis provide a validation that use of group velocities instead of phase ones raises accuracy of the Rueger's approximate equations when concerning utilized in practice seismic signals.