3D Forward Simulation of Borehole-Surface Transient Electromagnetic Based on Unstructured Finite Element Method
Tallennettuna:
| Julkaisussa: | Minerals vol. 15, no. 8 (2025), p. 785-804 |
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| Päätekijä: | |
| Muut tekijät: | , , , |
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MDPI AG
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| Linkit: | Citation/Abstract Full Text + Graphics Full Text - PDF |
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| 045 | 2 | |b d20250101 |b d20251231 | |
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| 100 | 1 | |a Liu, Jiayi |u College of Geophysics and Petroleum Resources, Yangtze University, Wuhan 430100, China; 2023710395@yangtzeu.edu.cn (J.L.); 500052@yangtzeu.edu.cn (X.X.) | |
| 245 | 1 | |a 3D Forward Simulation of Borehole-Surface Transient Electromagnetic Based on Unstructured Finite Element Method | |
| 260 | |b MDPI AG |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a The time-domain electromagnetic method has been widely applied in mineral exploration, oil, and gas fields in recent years. However, its response characteristics remain unclear, and there is an urgent need to study the response characteristics of the borehole-surface transient electromagnetic(BSTEM) field. This study starts from the time-domain electric field diffusion equation and discretizes the calculation area in space using tetrahedral meshes. The Galerkin method is used to derive the finite element equation of the electric field, and the vector interpolation basis function is used to approximate the electric field in any arbitrary tetrahedral mesh in the free space, thus achieving the three-dimensional forward simulation of the BSTEM field based on the finite element method. Following validation of the numerical simulation method, we further analyze the electromagnetic field response excited by vertical line sources.. Through comparison, it is concluded that measuring the radial electric field is the most intuitive and effective layout method for BSTEM, with a focus on the propagation characteristics of the electromagnetic field in both low-resistance and high-resistance anomalies at different positions. Numerical simulations reveal that BSTEM demonstrates superior resolution capability for low-resistivity anomalies, while showing limited detectability for high-resistivity anomalies Numerical simulation results of BSTEM with realistic orebody models, the correctness of this rule is further verified. This has important implications for our understanding of the propagation laws of BSTEM as well as for subsequent data processing and interpretation. | |
| 653 | |a Mineral exploration | ||
| 653 | |a Finite element method | ||
| 653 | |a Boreholes | ||
| 653 | |a Data processing | ||
| 653 | |a Magnetic fields | ||
| 653 | |a Electromagnetic fields | ||
| 653 | |a Time domain analysis | ||
| 653 | |a Basis functions | ||
| 653 | |a Data analysis | ||
| 653 | |a Shale gas | ||
| 653 | |a Electrical resistivity | ||
| 653 | |a Oil and gas fields | ||
| 653 | |a Galerkin method | ||
| 653 | |a Electric fields | ||
| 653 | |a Computer simulation | ||
| 653 | |a Geology | ||
| 653 | |a Oil exploration | ||
| 653 | |a Gas fields | ||
| 653 | |a Simulation | ||
| 653 | |a Electromagnetism | ||
| 653 | |a Methods | ||
| 653 | |a Finite element analysis | ||
| 653 | |a Anomalies | ||
| 653 | |a Electric field | ||
| 653 | |a Mathematical models | ||
| 700 | 1 | |a Cheng Tianjun |u Sinopec Geophysical Corporation Jianghan Branch, Qianjiang 433100, China; jh-chengtianj.osgc@sinopec.com | |
| 700 | 1 | |a Zhou, Lei |u College of Geophysics and Petroleum Resources, Yangtze University, Wuhan 430100, China; 2023710395@yangtzeu.edu.cn (J.L.); 500052@yangtzeu.edu.cn (X.X.) | |
| 700 | 1 | |a Wang, Xinyu |u School of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, China; mamba@cug.edu.cn | |
| 700 | 1 | |a Xie Xingbing |u College of Geophysics and Petroleum Resources, Yangtze University, Wuhan 430100, China; 2023710395@yangtzeu.edu.cn (J.L.); 500052@yangtzeu.edu.cn (X.X.) | |
| 773 | 0 | |t Minerals |g vol. 15, no. 8 (2025), p. 785-804 | |
| 786 | 0 | |d ProQuest |t ABI/INFORM Global | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3244048531/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/3244048531/fulltextwithgraphics/embedded/6A8EOT78XXH2IG52?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3244048531/fulltextPDF/embedded/6A8EOT78XXH2IG52?source=fedsrch |