Abstract
Loop TEM has over the years played important role in detecting single water-filled goaf. In order to exploit deep coal beds, the investigation of multi-layer aquifer became an important new task for coalfield hydro-geophysical prospecting using TEM. Because it has become necessary to modify the traditional interpretation technology. In this paper, based on the numerical calculation of typical horizontal layered earth model, the feasibility of probing multi-layer aquifers was analyzed. Secondly, while fitting inversion to TEM sounding curves, the number of layers was supposed to be equal to the number of time channel. Multi-layer aquifers were detected using central loop TEM in Shanxi Province. The exploration result has been validated by borehole drilling. This study shows that it is feasible to detect multi-layer aquifers with central loop TEM technique.
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Yan, S., Xue, G., Qiu, W. (2017). Distinguishing Multi-layer Mined-Out Area Through TEM. In: Di, Q., Xue, G., Xia, J. (eds) Technology and Application of Environmental and Engineering Geophysics. Springer Geophysics. Springer, Singapore. https://doi.org/10.1007/978-981-10-3244-8_16
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DOI: https://doi.org/10.1007/978-981-10-3244-8_16
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