A fully polarimetric borehole radar based numerical modelling: Fully polarimetric response to synthetic fractures and "fluid substitution"

J. G. Zhao, Motoyuki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A fully polarimetric borehole radar system with four combinations of dipole and cylindrical slot antennas was developed to acquire fully polarimetric data sets in drilled boreholes. To better under the fully polarimetric response to subsurface fractures with different roughness, in this study, synthetic fractures with different roughness are generated on a computer via fractal theory based simulation techniques. Quantitative assessment for the roughness of synthetic fractures is possible by use of three main parameters: the fractal dimension, the rms roughness at a reference length, and a length scale describing the degree of mismatch between the two fracture surfaces, allowing future detailed study of mechanical and transport properties of fractures and fully polarimetric radar response on them. Next, a 3D sub-grid FDTD numerical simulation is used to synthesize fully polarimetric data sets with synthetic fractures as primary reflectors. Based on the synthetic data sets, it is possible to evaluate the applicability of different radar polarimetry analysis approaches to physical characterization of subsurface fractures in future.

Original languageEnglish
Title of host publication2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
Pages3929-3932
Number of pages4
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010 - Honolulu, HI, United States
Duration: 2010 Jul 252010 Jul 30

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Other

Other2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
CountryUnited States
CityHonolulu, HI
Period10/7/2510/7/30

Keywords

  • FDTD
  • Fully polarimetric borehole radar
  • Polarimetric radar response
  • Synthetic fractures

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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    Zhao, J. G., & Sato, M. (2010). A fully polarimetric borehole radar based numerical modelling: Fully polarimetric response to synthetic fractures and "fluid substitution". In 2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010 (pp. 3929-3932). [5651332] (International Geoscience and Remote Sensing Symposium (IGARSS)). https://doi.org/10.1109/IGARSS.2010.5651332