View Item 

Extraction of Permeability Variations from P-Wave Velocity Dispersion Data

Access Status
Open access
Authors
Milkereit, B.
Pun, W.
Harris, Brett
Date
2010
Type
Conference Paper

Metadata
Show full item record
Citation
Milkereit, B. and Pun, W. and Harris, B. 2010. Extraction of Permeability Variations from P-Wave Velocity Dispersion Data, 16th European Meeting of Environmental and Engineering Geophysics, Sep 6 2010. Zurich, Switzerland: European Association of Geoscientists & Engineers.
Source Title
Near Surface 2010
Source Conference
16th European Meeting of Environmental and Engineering Geophysics
School
Department of Exploration Geophysics
URI
Collection
Abstract

Permeability is a key parameter for the evaluation of subsurface formations in groundwater and hydrocarbon exploration. We utilize broadband full-waveform sonic data to exploit Pride's relationship between P-wave velocity dispersion and permeability for porous, fluid-filled media. Frequency dependent P-wave velocities are extracted from multi-channel sonic data during a two-step process: computation of semblance-based velocity spectra at two or more center frequencies followed by a 2D cross-correlation of the velocity spectra. A comparison with MRI-derived permeability logs confirm that P-wave velocity dispersion logs can be used to map permeability variations.