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Dispersion Curves and Dispersion Characteristics Expected from Different Borehole Environments  

Zhao, Weijun (Dept. of Geophysics, Kangwon National Univ.)
Kim, Yeong-Hwa (Dept. of Geophysics, Kangwon National Univ.)
Kim, Jong-Man (Dept. of Geophysics, Kangwon National Univ.)
Publication Information
The Journal of Engineering Geology / v.17, no.3, 2007 , pp. 329-337 More about this Journal
Abstract
For seven NX sized borehole models constructed from physical property data for representative geology in Korea, dispersion curves were derived and compared between models having different physical parameters. By comparing and analyzing the dispersion curves obtained from different sources (monopole and dipole) and different borehole sizes (76 mm and 150 mm), dispersion characteristics in sonic log could be understood better, particularly in the case of slim hole sonic log.
Keywords
dispersion curve; pseudo-Rayleigh; flexural wave; monopole source; dipole source;
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