Generalized poroviscoelastic model based on effective biot theory and its application to borehole guided wave analysis

Xu Liu, Stewart Greenhalgh, Bing Zhou, Graham Heinson

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A method using modified attenuation factor function is suggested to determine the parameters of the generalized Zener model approximating the attenuation factor function. This method is applied to constitute the poroviscoelastic model based on the effective Biot theory which considers the attenuative solid frame of reservoir. In the poroviscoelastic model, frequencydependent bulk modulus and shear modulus of solid frame are represented by generalized Zener models. As an application, the borehole logging dispersion equations from Biot theory are extended to include effects from the intrinsic body attenuation in formation media in full-frequency range. The velocity dispersions of borehole guided waves are calculated to investigate the influence from attenuative bore fluid, attenuative solid frame of the formation and impermeable bore wall.

Original languageBritish English
Article numberggw345
Pages (from-to)1472-1483
Number of pages12
JournalGeophysical Journal International
Volume207
Issue number3
DOIs
StatePublished - 1 Dec 2016

Keywords

  • Elasticity and anelasticity
  • Guided waves
  • Permeability and porosity

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