A Ring-Shaped Curved Deformable Self-Powered Vibration Sensor Applied in Drilling Conditions

Hu Wang, He Huang, Chuan Wu () and Jinrun Liu
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Hu Wang: 111 Geological Brigade of Guizhou Provincial Bureau of Geology and Mineral Resources, Guiyang 550081, China
He Huang: Powerchina Hubei Electric Engineering Co., Ltd., Wuhan 430040, China
Chuan Wu: Faculty of Mechanical and Electronic Information, China University of Geosciences, Wuhan 430074, China
Jinrun Liu: Faculty of Mechanical and Electronic Information, China University of Geosciences, Wuhan 430074, China

Energies, 2022, vol. 15, issue 21, 1-10

Abstract: Because of their low flexibility, traditional vibration sensors cannot perform arbitrary bending adjustments when facing curved surfaces and other complex working conditions during the drilling process; therefore, this research proposes a ring-shaped vibration sensor (RSV−TENG) that can deform freely in the bending direction, and which can be used in working conditions where the inner bending angle of the drill pipe changes greatly. Test results show that the vibration frequency measurement range is from 4 Hz to 16 Hz, with a measurement error less than 4%, the vibration amplitude measurement range is less than 20 mm, with a measurement error less than 5%, the output voltage and current signal are 120 V and 60 nA, respectively, when three RSV−TENGs are connected in parallel, and the maximum output power is 6 × 10 −7 W when the external resistance is 10 6 Ω. Compared with traditional downhole sensors, this sensor has self-powered and self-sensing functions, eliminating the shortcomings of battery and cable power supply; in addition, this sensor can be installed in the drill pipe space with different curvature radii, so it is more suited to complex and changeable downhole working conditions.

Keywords: triboelectric nanogenerator; self-powered sensor; downhole vibration (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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