rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Multi-Component Acoustic Characterization of Porous Media
  name:
    name part: van Dalen, Karel N.
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: SpringerLink (Online service)
  type of resource: text
  origin info:
    place:
      place term: gw
    date issued: 2013
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: electronic
    form: electronic resource
    reformatting quality: access
    form: remote
    extent: XIX, 170 p. online resource.
  abstract: The feasibility to extract porous medium parameters from acoustic recordings is investigated. The thesis gives an excellent discussion of our basic understanding of different wavemodes, using a full-waveform and multi-component approach. Focus lies on the dependency on porosity and permeability where especially the latter is difficult to estimate. In this thesis, this sensitivity is shown for interface and reflected wavemodes. For each of the pseudo-Rayleigh and pseudo-Stoneley interface waves, unique estimates for permeability and porosity can be obtained when impedance and attenuation are combined. The pseudo-Stoneley wave is most sensitive to permeability: both the impedance and the attenuation are controlled by the fluid flow. Also from reflected wavemodes unique estimates for permeability and porosity can be obtained when the reflection coefficients of different reflected modes are combined. In this case, the sensitivity to permeability is caused by subsurface heterogeneities generating mesoscopic fluid flow at seismic frequencies. The results of this thesis suggest that estimation of in-situ permeability is feasible, provided detection is carried out with multi-component measurements. The results largely affect geotechnical and reservoir engineering practices.
  table of contents: Governing equations for wave propagation in a fluid-saturated porous medium -- Green’s tensors for wave propagation in a fluid-saturated porous medium -- On wavemodes at the interface of a fluid and a fluid-saturated poroelastic solid -- Pseudo interface waves observed at the fluid/porous-medium interface. A comparison of two methods -- Impedance and ellipticity of fluid/elastic-solid interface waves: medium characterization and simultaneous displacement - pressure measurements -- Impedance and ellipticity of fluid/porous-medium interface waves: medium characterization and simultaneous displacement - pressure measurements -- In-situ permeability from integrated poroelastic reflection coefficients.
  note: by Karel N. van Dalen.
  subject:
    topic: Earth sciences
  subject:
    topic: Geophysics
  subject:
    topic: Geotechnical engineering
  subject:
    topic: Applied mathematics
  subject:
    topic: Engineering mathematics
  subject:
    topic: Acoustics
  subject:
    topic: Engineering geology
  subject:
    topic: Engineering
    topic: Geology
  subject:
    topic: Foundations
  subject:
    topic: Hydraulics
  subject:
    topic: Earth Sciences
  subject:
    topic: Geophysics/Geodesy
  subject:
    topic: Acoustics
  subject:
    topic: Geotechnical Engineering & Applied Earth Sciences
  subject:
    topic: Applications of Mathematics
  subject:
    topic: Geoengineering, Foundations, Hydraulics
  classification: QC801-809
  classification: 550
  classification: 526.1
  related item:
    title info:
      title: Springer eBooks
  related item:
    title info:
      title: Springer Theses, Recognizing Outstanding Ph.D. Research
  identifier: 9783642348457
  identifier: http://dx.doi.org/10.1007/978-3-642-34845-7
  record info:
    record creation date: 130125
    record change date: 20151204175415.0
    record identifier: 978-3-642-34845-7