MODELING STUDY ON MULTIPLE THIN-PLATE CONDUCTORS BASED ON SURFACE-HOLE TRANSIENT ELECTROMAGNETIC ANOMALY RESPONSES

NIU Zheng; QIN Chang-chun; HAN Yao-ji; LUO Jing

doi:10.13686/j.cnki.dzyzy.2022.05.009

2022 Vol. 31, No. 5

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NIU Zheng, QIN Chang-chun, HAN Yao-ji, LUO Jing. MODELING STUDY ON MULTIPLE THIN-PLATE CONDUCTORS BASED ON SURFACE-HOLE TRANSIENT ELECTROMAGNETIC ANOMALY RESPONSES[J]. Geology and Resources, 2022, 31(5): 653-659. doi: 10.13686/j.cnki.dzyzy.2022.05.009

Citation:

NIU Zheng, QIN Chang-chun, HAN Yao-ji, LUO Jing. MODELING STUDY ON MULTIPLE THIN-PLATE CONDUCTORS BASED ON SURFACE-HOLE TRANSIENT ELECTROMAGNETIC ANOMALY RESPONSES[J]. Geology and Resources, 2022, 31(5): 653-659. doi: 10.13686/j.cnki.dzyzy.2022.05.009

MODELING STUDY ON MULTIPLE THIN-PLATE CONDUCTORS BASED ON SURFACE-HOLE TRANSIENT ELECTROMAGNETIC ANOMALY RESPONSES

No. 2 Comprehensive Geophysical Exploration Brigade of Shaanxi Geology and Mining Group Co., Ltd., Xi'an 710016, China

Received Date: 04 January 2021

Revised Date: 04 March 2021

Publish Date: 25 October 2022

Abstract

Abstract

The surface-hole transient electromagnetic method (SHTEM) is used to explore deep mineral resources by which field source is excited on surface and transient responses are observed through receiving coil in borehole. The mutual inductance coefficient and induced voltage between equivalent eddy current ring and Rx are calculated based on the principle of equivalent eddy current ring method. By establishing a mathematic model of multiple thin-plate conductors, the response superimposed field is calculated and simulated under the condition that there are combinations of multiple thin conductive plates underground to study the surface-hole transient electromagnetic anomaly responses of multiple conductors and analyze their characteristics and rules. It is considered that multiple combinations of thin plate orebodies can be distinguished through SHTEM when they are close to the borehole.
- SHTEM /
- multiple conductor /
- conductive plate /
- equivalent eddy current

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References

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