Geophysical electrical potential inversion for grouting remote monitoring of coal mine double-layered wellbores
This work aims to remotely monitor the grouting process of double-layered wellbores in deep coal mining area by proposing a new geophysical electrical potential inversion imaging method. The proposed geophysical method is able to evaluate the grouting quality between the inner and outer walls of the...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Alexandria Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016824003636 |
| _version_ | 1797203108228497408 |
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| author | Benyu Su Haiping Yang Grzegorz Królczyk Quanwei Yang Shengdong Liu Patrick Siarry Z. Li |
| author_facet | Benyu Su Haiping Yang Grzegorz Królczyk Quanwei Yang Shengdong Liu Patrick Siarry Z. Li |
| author_sort | Benyu Su |
| collection | DOAJ |
| description | This work aims to remotely monitor the grouting process of double-layered wellbores in deep coal mining area by proposing a new geophysical electrical potential inversion imaging method. The proposed geophysical method is able to evaluate the grouting quality between the inner and outer walls of the wellbores by inverting the geologic electrical potential. Th challenge lies here in the potential inversion is that the thickness of the grouting space is extremely narrow when comparing with the wellbore diameter. To solve this problem, a constrained inversion model is developed to precisely generate the three-dimensional (3D) resistivity distributions of the double-layered wellbore based on the measured geologic electrical potential. A special designed test platform is constructed and experimental tests have been conducted to examine the performance of the proposed geophysical inversion imaging method. The geologic electrical potential of the grouting space is measured and remotely transmitted to the ground processing center; and the constrained inversion model is applied to the geologic signals to calculate the resistivity distributions at different grouting stages and produce the 3D geophysical images. The analysis results suggest that the present geophysical monitoring method can effectively visualize the grouting to evaluate the construction quality of the wellbore. |
| first_indexed | 2024-04-24T08:14:05Z |
| format | Article |
| id | doaj.art-8d962dce4b034b7babf8539f631d42f7 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-04-24T08:14:05Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-8d962dce4b034b7babf8539f631d42f72024-04-17T04:48:43ZengElsevierAlexandria Engineering Journal1110-01682024-06-0196279294Geophysical electrical potential inversion for grouting remote monitoring of coal mine double-layered wellboresBenyu Su0Haiping Yang1Grzegorz Królczyk2Quanwei Yang3Shengdong Liu4Patrick Siarry5Z. Li6School of Safety Engineering, China University of Mining and Technology Xuzhou 221116, China; Corresponding author.Department of Geophysics, China University of Mining and Technology, Xuzhou 221116, ChinaFaculty of Mechanical Engineering, Opole University of Technology, Opole 45758, PolandSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Jiangsu Provinces, Xuzhou City 221116, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Jiangsu Provinces, Xuzhou City 221116, ChinaUniversity Paris-Est Créteil Val de Marne, 61 Av. du General de Gaulle, Creteil 94010, FranceFaculty of Mechanical Engineering, Opole University of Technology, Opole 45758, PolandThis work aims to remotely monitor the grouting process of double-layered wellbores in deep coal mining area by proposing a new geophysical electrical potential inversion imaging method. The proposed geophysical method is able to evaluate the grouting quality between the inner and outer walls of the wellbores by inverting the geologic electrical potential. Th challenge lies here in the potential inversion is that the thickness of the grouting space is extremely narrow when comparing with the wellbore diameter. To solve this problem, a constrained inversion model is developed to precisely generate the three-dimensional (3D) resistivity distributions of the double-layered wellbore based on the measured geologic electrical potential. A special designed test platform is constructed and experimental tests have been conducted to examine the performance of the proposed geophysical inversion imaging method. The geologic electrical potential of the grouting space is measured and remotely transmitted to the ground processing center; and the constrained inversion model is applied to the geologic signals to calculate the resistivity distributions at different grouting stages and produce the 3D geophysical images. The analysis results suggest that the present geophysical monitoring method can effectively visualize the grouting to evaluate the construction quality of the wellbore.http://www.sciencedirect.com/science/article/pii/S1110016824003636Structural health monitoringDouble-layer wellboreDirect current resistivityConstrained inversion method |
| spellingShingle | Benyu Su Haiping Yang Grzegorz Królczyk Quanwei Yang Shengdong Liu Patrick Siarry Z. Li Geophysical electrical potential inversion for grouting remote monitoring of coal mine double-layered wellbores Alexandria Engineering Journal Structural health monitoring Double-layer wellbore Direct current resistivity Constrained inversion method |
| title | Geophysical electrical potential inversion for grouting remote monitoring of coal mine double-layered wellbores |
| title_full | Geophysical electrical potential inversion for grouting remote monitoring of coal mine double-layered wellbores |
| title_fullStr | Geophysical electrical potential inversion for grouting remote monitoring of coal mine double-layered wellbores |
| title_full_unstemmed | Geophysical electrical potential inversion for grouting remote monitoring of coal mine double-layered wellbores |
| title_short | Geophysical electrical potential inversion for grouting remote monitoring of coal mine double-layered wellbores |
| title_sort | geophysical electrical potential inversion for grouting remote monitoring of coal mine double layered wellbores |
| topic | Structural health monitoring Double-layer wellbore Direct current resistivity Constrained inversion method |
| url | http://www.sciencedirect.com/science/article/pii/S1110016824003636 |
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