Electromagnetic Field Distribution and Data Characteristics of SUTEM of Multilayer Aquifers
Coal-bearing strata belong to sedimentary strata, and there are multiple aquifers. The accurate detection of deep aquifers is helpful to the safe mining of the working face. In order to provide guidance for the interpretation of the surface-to-underground transient electromagnetic method (SUTEM) tha...
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2024-10-01
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| author | Maofei Li Zhihai Jiang Shucai Liu Shangbin Chen Xuerui Tong |
| author_facet | Maofei Li Zhihai Jiang Shucai Liu Shangbin Chen Xuerui Tong |
| author_sort | Maofei Li |
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| description | Coal-bearing strata belong to sedimentary strata, and there are multiple aquifers. The accurate detection of deep aquifers is helpful to the safe mining of the working face. In order to provide guidance for the interpretation of the surface-to-underground transient electromagnetic method (SUTEM) that can be used to detect deep aquifers, we used theoretical analysis and numerical simulation methods in this study. Taking uniform half-spaces, single aquifers, and double aquifers as examples, we systematically studied the data characteristics and degree of influence of SUTEM under the influence of shallow aquifers. The results indicate the following: Under the influence of the primary field distribution, the <i>x</i> or <i>y</i> component of the induced electromotive force received by the underground receiving point has a positive and negative inflection point, which increases the difficulty of data interpretation, and the <i>z</i> component is easier to use for data interpretation. The influence of the aquifer on the early data of the underground receiving point is much greater than that of the ground receiving point, and the late influence is closer to the ground receiving point. The change in resistivity of the shallow aquifer has the greatest influence on the ability of each measuring point to detect the data of the deep aquifer; this influence is followed by change in thickness, and change in depth has the least influence on the detection capability of each measuring point. |
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| spelling | doaj-art-dc7cc2286a244a07a7a737a0f3a0104d2025-08-20T02:11:08ZengMDPI AGApplied Sciences2076-34172024-10-011420935810.3390/app14209358Electromagnetic Field Distribution and Data Characteristics of SUTEM of Multilayer AquifersMaofei Li0Zhihai Jiang1Shucai Liu2Shangbin Chen3Xuerui Tong4School of Resources and Geosciences, China University of Mining and Technology, Daxue Road No. 1, Xuzhou 221000, ChinaSchool of Resources and Geosciences, China University of Mining and Technology, Daxue Road No. 1, Xuzhou 221000, ChinaSchool of Resources and Geosciences, China University of Mining and Technology, Daxue Road No. 1, Xuzhou 221000, ChinaSchool of Resources and Geosciences, China University of Mining and Technology, Daxue Road No. 1, Xuzhou 221000, ChinaSchool of Resources and Geosciences, China University of Mining and Technology, Daxue Road No. 1, Xuzhou 221000, ChinaCoal-bearing strata belong to sedimentary strata, and there are multiple aquifers. The accurate detection of deep aquifers is helpful to the safe mining of the working face. In order to provide guidance for the interpretation of the surface-to-underground transient electromagnetic method (SUTEM) that can be used to detect deep aquifers, we used theoretical analysis and numerical simulation methods in this study. Taking uniform half-spaces, single aquifers, and double aquifers as examples, we systematically studied the data characteristics and degree of influence of SUTEM under the influence of shallow aquifers. The results indicate the following: Under the influence of the primary field distribution, the <i>x</i> or <i>y</i> component of the induced electromotive force received by the underground receiving point has a positive and negative inflection point, which increases the difficulty of data interpretation, and the <i>z</i> component is easier to use for data interpretation. The influence of the aquifer on the early data of the underground receiving point is much greater than that of the ground receiving point, and the late influence is closer to the ground receiving point. The change in resistivity of the shallow aquifer has the greatest influence on the ability of each measuring point to detect the data of the deep aquifer; this influence is followed by change in thickness, and change in depth has the least influence on the detection capability of each measuring point.https://www.mdpi.com/2076-3417/14/20/9358surface-to-underground transient electromagnetic method (SUTEM)coal mine water controlforward modelingmultilayered aquifer |
| spellingShingle | Maofei Li Zhihai Jiang Shucai Liu Shangbin Chen Xuerui Tong Electromagnetic Field Distribution and Data Characteristics of SUTEM of Multilayer Aquifers Applied Sciences surface-to-underground transient electromagnetic method (SUTEM) coal mine water control forward modeling multilayered aquifer |
| title | Electromagnetic Field Distribution and Data Characteristics of SUTEM of Multilayer Aquifers |
| title_full | Electromagnetic Field Distribution and Data Characteristics of SUTEM of Multilayer Aquifers |
| title_fullStr | Electromagnetic Field Distribution and Data Characteristics of SUTEM of Multilayer Aquifers |
| title_full_unstemmed | Electromagnetic Field Distribution and Data Characteristics of SUTEM of Multilayer Aquifers |
| title_short | Electromagnetic Field Distribution and Data Characteristics of SUTEM of Multilayer Aquifers |
| title_sort | electromagnetic field distribution and data characteristics of sutem of multilayer aquifers |
| topic | surface-to-underground transient electromagnetic method (SUTEM) coal mine water control forward modeling multilayered aquifer |
| url | https://www.mdpi.com/2076-3417/14/20/9358 |
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