Optimization of magnetizing systems for flaw detectors of drill pipes

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The paper discusses methods for optimizing magnetizing systems of portable flaw detectors for drill pipes, the main purpose of which is to reduce weight, reduce energy consumption and create a more uniform magnetic field in the working area. The disadvantages of traditionally used systems are outlined and three ways to improve them are proposed.

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作者简介

L. Mikhailov

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

编辑信件的主要联系方式.
Email: mikhaylov_lv@imp.uran.ru
俄罗斯联邦, 620137 Yekaterinburg, S. Kovalevskoy St.,18

A. Mikhailov

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: mikhaylov@imp.uran.ru
俄罗斯联邦, 620137 Yekaterinburg, S. Kovalevskoy St.,18

Yu. Gobov

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: go@imp.uran.ru
俄罗斯联邦, 620137 Yekaterinburg, S. Kovalevskoy St.,18

A. Nikitin

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: go@imp.uran.ru
俄罗斯联邦, 620137 Yekaterinburg, S. Kovalevskoy St.,18

Ya. Smorodinskii

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: go@imp.uran.ru
俄罗斯联邦, 620137 Yekaterinburg, S. Kovalevskoy St.,18

V. Kostin

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: go@imp.uran.ru
俄罗斯联邦, 620137 Yekaterinburg, S. Kovalevskoy St.,18

参考

  1. Drill Pipe Inspection System. URL: https://www.newtechsystems.com/products/emi-equipment/vedaq-2000-c/ (access date: 02.05.2024).
  2. Portativnaya ustanovka kontrolya buril’nyh trub magnitnymi metodami nerazrushayushchego kontrolya MAGPORTABUR. URL: https://www.vimatec.ru (access date: 02.05.2024). (In Russian).
  3. Khmelev S.V., Ketov A.B.1, Shafer A.G. Non-destructive testing of drilling equipment according to DS-1 standard // «Drilling and oil» magazine. 2022. No. 3. P. 40—42. (In Russian).
  4. DS-1. V. 3. Drill Stem Inspection, TH Hill Associates.
  5. Marchenko I., YUdakov E., CHekmazov V., Kondrat’ev V. Metody i vidy nerazrushayushchego kontrolya v processe inspekcii (defektoskopii) buril’nyh trub i usloviya ee provedeniya // ТехНАДЗОР. 2015. V. 10. No. 107. P. 128—129. (In Russian).
  6. Wu J., Fang H., Li L., Wang J., Huang X., Kang Y., Sun Y., Tang C. A Lift-Off-Tolerant Magnetic Flux Leakage Testing Method for Drill Pipes at Wellhead // Sensors (Basel, Switzerland). 2017. V. 17. No. 1. P. 201.
  7. Mikhailov A.V., Gobov Yu.L., Nikitin A.V., Popov S.E., Mikhailov L.V., Antokolsky L.I. Simulation of a closed-loop magnetizing system for a portable drill pipe magnetic flaw detector // AIP Conference Proceedings. 2022. V. 2466. No. 1. P. 040009.
  8. GOST 631—75 Truby buril’nye s vysazhennymi koncami i mufty k nim. Tekhnicheskie usloviya. (In Russian).
  9. Hysteresegraph: PERMAGRAPH® und REMAGRAPH®. URL: https://www.magnet-physik.de/messtechnik/hysteresegraphen/ (access date: 06.05.2024).
  10. GOST R 50278—92 Truby buril’nye s privarennymi zamkami. Tekhnicheskie usloviya (s Popravkoj, s Izmeneniyami No. 1, 2). (In Russian).

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2. Figure 1. Magnetic field strength amplitudes in the working area when using three magnetizing coils with winding masses of 18, 20 and 23 kg on all existing drill pipe sizes.

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3. Figure 2. Three-dimensional models of magnetizing systems: a - swing system with an air gap of 5 mm; b - with ferromagnetic wheels; c - with permanent magnets NdFeB with an air gap of 10 mm.

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4. Figure 3. Distribution of the tangential component of the magnetic field intensity on the pipe surface along its axis from magnetizing systems: 1 - coils; 2 - swing with permanent magnets; 3 - swing with air gap; 4 - swing with ferromagnetic wheels.

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