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Downhole Arrayed Self-powered Deformable Vibration Sensor
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Yan-jun FENG1, 2, 3, Jian-chao REN1, Chuan WU4, *, Mao-fu LIU1, Wei-bo DING1, Rong-cai BAI1, Chi CHEN4
Science Technology and Engineering | 2025, 25(1) : 186 - 193
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Science Technology and Engineering | 2025, 25(1): 186-193
• Papers·Mechanical and Instrumental Industry •
Downhole Arrayed Self-powered Deformable Vibration Sensor
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Yan-jun FENG1, 2, 3, Jian-chao REN1, Chuan WU4, *, Mao-fu LIU1, Wei-bo DING1, Rong-cai BAI1, Chi CHEN4
Affiliations
  • 1. Shaanxi Coal Caojiatan Mining Co., Ltd., Shenmu 719100, China
  • 2. Mining Research Institute, China Coal Research Institute, Beijing 100013, China
  • 3. China Coal Science and Industry Mining Research Institute Co., Ltd., Beijing 100013, China
  • 4. School of Mechanical Engineering and Electronic Information, China University of Geosciences (Wuhan), Wuhan 430074, China
Published: 2025-01-08 doi: 10.12404/j.issn.1671-1815.2401870
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The drilling process requires real-time measurement of drill string vibration, which is crucial for drilling and downhole safety. However, the traditional power supply mode used for downhole vibration sensors has been found to increase drilling costs and reduce drilling efficiency. Therefore, sensors with self-powered capabilities are considered more suitable for practical conditions. A downhole arrayed self-powered deformable vibration sensor was proposed based on the principle of triboelectric nanogenerators. Experimental results demonstrate that the sensor synchronized measurements of amplitude and frequency. The vibration frequency is measured within a range of 0 Hz to 11 Hz, with a measurement error of less than ±4%. Additionally, the sensor is able to measure three discrete amplitude values (10, 25, 40 mm) with a measurement error of ±3 mm. The sensor can working normally within a temperature range of 0 ℃ to 85 ℃. Furthermore, the sensor has power generation capabilities, with experiments revealing a maximum output power of 8.3×10-7 W. Notably, when multiple sensors are used in parallel, the power generation capacity is significantly enhanced. These research findings provide new insights for the development of downhole sensors and downhole generators.

vibration sensor  /  triboelectric nanogenerator  /  self-powered  /  drill pipe vibration
Yan-jun FENG, Jian-chao REN, Chuan WU, Mao-fu LIU, Wei-bo DING, Rong-cai BAI, Chi CHEN. Downhole Arrayed Self-powered Deformable Vibration Sensor[J]. Science Technology and Engineering, 2025 , 25 (1) : 186 -193 . DOI: 10.12404/j.issn.1671-1815.2401870
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Article Info
doi: 10.12404/j.issn.1671-1815.2401870
  • Receive Date：2024-03-15
  • Online Date：2025-07-29
  • Published：2025-01-08
Article Data
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History
  • Received：2024-03-15
  • Revised：2024-10-10
Funding
Affiliations
    1. Shaanxi Coal Caojiatan Mining Co., Ltd., Shenmu 719100, China
    2. Mining Research Institute, China Coal Research Institute, Beijing 100013, China
    3. China Coal Science and Industry Mining Research Institute Co., Ltd., Beijing 100013, China
    4. School of Mechanical Engineering and Electronic Information, China University of Geosciences (Wuhan), Wuhan 430074, China
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