1887

Abstract

P211 Low Frequency Modifications of Seismic Background Noise Due to Interaction with Oscillating Fluids in Porous Rocks M. Frehner* (Geological Institute ETH Zurich) S.M. Schmalholz (Geological Institute ETH Zurich) Y. Podladchikov (PGP University of Oslo) & R. Holzner (Spectraseis Technologie AG Zurich) SUMMARY Low frequency spectral modifications of seismic background waves (noise) due to interaction with partially saturated porous rocks are investigated. Non-wetting fluid drops entrapped in pores can oscillate with a characteristic eigenfrequency. A 1D wave equation is coupled with a linear oscillator equation representing these oscillations. The resulting system of equations is solved numerically with explicit finite differences.

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/content/papers/10.3997/2214-4609.201401875
2007-06-11
2020-12-02
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