井下阵列式可变形自供电振动传感器
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1.陕西陕煤曹家滩矿业有限公司;2.机械与电子信息学院 中国地质大学(武汉)

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TH763

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国家重点研发计划资助项目(2023YFC2907502);陕西陕煤曹家滩矿业有限公司项目(KCYJY-2023 -ZD -02;2023-TD-ZD003-003)


Downhole Arrayed Self-powered Deformable Vibration Sensor
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Shaanxi coal Caojiatan mining Co, LTD

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    摘要:

    钻井过程中实时测量钻具振动对于钻井工艺及井下安全至关重要,然而传统的井下振动传感器供电方式增加了钻井成本并降低了钻井效率,而具有自发电功能的传感器无疑将更加适宜实际工况。本研究基于摩擦纳米发电机原理,提出了一种井下阵列式可变形自供电振动传感器。试验表明该传感器可同步测量振幅和频率,其中振动频率的测量范围为0-11 Hz,测量误差小于±4%;可实现三个离散振幅值(10 mm、25 mm及40 mm)的测量,测量误差为±3 mm。此外传感器还具有发电功能,试验表明传感器的最大输出功率可达8.3×10-7 W,而将多个传感器并联使用后其发电功率将大幅度提升。研究成果可为井下传感器及井下发电机的研制提供新的思路。

    Abstract:

    real-time measurement of drill string vibration during the drilling process is crucial for drilling operations and downhole safety. However, the traditional power supply mode for downhole vibration sensors increases drilling costs and reduces drilling efficiency. Sensors with self-powered capabilities are undoubtedly more suitable for practical conditions. Based on the principle of triboelectric nanogenerator, this study proposes a downhole arrayed self-powered deformable vibration sensor. Experiments show that the sensor can synchronize measurements of amplitude and frequency, with a vibration frequency measurement range of 0 to 11 Hz and a measurement error of less than ±4%. It can also measure three discrete amplitude values (10 mm, 25 mm, and 40 mm) with a measurement error of ±3 mm. In addition, the sensor has power generation capabilities, with experiments showing a maximum output power of 8.3×10-7 W. Furthermore, when multiple sensors are used in parallel, the power generation capacity is significantly enhanced. The research findings can provide new insights for the development of downhole sensors and downhole generators.

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冯彦军,任建超,吴川,等. 井下阵列式可变形自供电振动传感器[J]. 科学技术与工程, , ():

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  • 收稿日期:2024-03-15
  • 最后修改日期:2024-04-30
  • 录用日期:2024-05-21
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