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Volume 26 Issue 6
Nov 2015
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Journal of Earth Science  > 2015  >  26(6): 785-790.
J. Germán Rubino, Beatriz Quintal, Tobias M. Müller, Luis Guarracino, Ralf Jänicke, Holger Steeb, Klaus Holliger. Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures. Journal of Earth Science, 2015, 26(6): 785-790. doi: 10.1007/s12583-015-0613-0
Citation: J. Germán Rubino, Beatriz Quintal, Tobias M. Müller, Luis Guarracino, Ralf Jänicke, Holger Steeb, Klaus Holliger. Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures. Journal of Earth Science, 2015, 26(6): 785-790. doi: 10.1007/s12583-015-0613-0
shu

Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures

doi: 10.1007/s12583-015-0613-0
  • 1.

    Applied and Environmental Geophysics Group, Institute of Earth Sciences, University of Lausanne, Lausanne CH 1015, Switzerland

  • 2.

    Energy Flagship, Commonwealth Scientific and Industrial Research Organization, Perth 6000, Australia

  • 3.

    CONICET, Facultad de Ciencias Astronómicasy Geofísicas, Universidad Nacional de La Plata, La Plata B1900, Argentina

  • 4.

    Institute of Mechanics, University of Bochum, Bochum 44787, Germany

More Information
  • Corresponding author: Klaus Holliger, klaus.holliger@unil.ch
  • Received Date: 03 May 2015
  • Accepted Date: 11 Sep 2015
  • Publish Date: 01 Dec 2015
    Abstract
  • An important characteristic of fractured rocks is their high seismic attenuation, which so far has been mainly attributed to wave-induced fluid flow (WIFF) between the fractures and the embedding matrix. The influence of fracture connectivity on seismic attenuation has, however, recently, only been investigated. Numerical compressibility and shear tests based on Biot's quasi-static poro-elastic equations illustrate that an important manifestation of WIFF arises in the presence of fracture connectivity. The corresponding energy loss, which can be significant for both P- and S-waves, is mainly due to fluid flow within the connected fractures and is sensitive to the permeabilities as well as the lengths and intersection angles of the fractures. Correspondingly, this phenomenon contains valuable information on the governing hydraulic properties of fractured rocks and hence should be accounted for whenever realistic seismic models of such media are needed.

     

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