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Volume 36 Number 4
  • E-ISSN: 1365-2478

Abstract

ABSTRACT

Expressions are derived for the acoustic pressure in a fluid‐filled borehole due to the passage of plane compressional or shear waves propagating in a porous and permeable medium. The derivation is based on a quasistatic description, yielding results applicable at low frequencies. Computations for a plausible sandstone (with porosity of 0.21 and permeability of 300 millidarcies) show accoustic pressure to be a surprisingly distortion‐free version of the stress waveform in a plane compressional wave. For a plane shear wave, the pressure waveform is visibly distorted.

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2006-04-27
2024-04-26

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References

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  • Article Type: Research Article

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