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Measurement and inversion schemes for single borehole-to-surface electrical resistivity tomography surveys
Several measurement arrangements involving different electrode arrays are considered for the case of single borehole-to-surface ERT surveys. Synthetic data tests indicate that standard measuring and inversion techniques can result in reconstructed images that suffer from artefacts. Based on the measurement sensitivity analysis, we propose a modified inversion scheme that compensates for the symmetric sensitivity of the in-hole measurements and improves the quality of the image. The new scheme has been tested using both synthetic and field data. The best results were obtained using pole–dipole or dipole–dipole arrays. Finally, some recommendations are made to improve the efficiency of field measurement configurations.
Measurement and inversion schemes for single borehole-to-surface electrical resistivity tomography surveys
Several measurement arrangements involving different electrode arrays are considered for the case of single borehole-to-surface ERT surveys. Synthetic data tests indicate that standard measuring and inversion techniques can result in reconstructed images that suffer from artefacts. Based on the measurement sensitivity analysis, we propose a modified inversion scheme that compensates for the symmetric sensitivity of the in-hole measurements and improves the quality of the image. The new scheme has been tested using both synthetic and field data. The best results were obtained using pole–dipole or dipole–dipole arrays. Finally, some recommendations are made to improve the efficiency of field measurement configurations.
Measurement and inversion schemes for single borehole-to-surface electrical resistivity tomography surveys
Measurement and inversion schemes for single borehole-to-surface ERT surveys
Panagiotis Tsourlos (author) / Richard Ogilvy (author) / Constantinos Papazachos (author) / Philip Meldrum (author)
Journal of Geophysics and Engineering ; 8 ; 487-497
2011-12-01
11 pages
Article (Journal)
Electronic Resource
English
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