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Analytical and experimental research on the cutting mechanical properties of an electromagnetically coupled downhole cutting tool.

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Title: Analytical and experimental research on the cutting mechanical properties of an electromagnetically coupled downhole cutting tool.
Authors: Liu, Yongsheng1 (AUTHOR) yongsheng@cugb.edu.cn, Chu, Tianshu1 (AUTHOR) 2102230060@email.cugb.edu.cn, Huang, Xu1 (AUTHOR) 2102210015@email.cugb.edu.cn, Yang, Shangyu2 (AUTHOR) yangshangyu@cnpc.com.cn, Sun, Qiang3 (AUTHOR) sun_yuppy@petrochina.com.cn
Source: Measurement (02632241). Sep2025:Part A, Vol. 253, pN.PAG-N.PAG. 1p.
Subjects: Electromagnetic coupling, Cutting force, Magnetic particles, Magnetic torque, Cutting tools
Abstract: • The cutting control equation of the electromagnetic coupled downhole cutting tool is established. • The changing characteristics of cutting force, braking torque and excitation current in the feeding direction are analyzed. • Innovative experiments on the cutting characteristics of electromagnetic coupled downhole cutting tool were carried out. Downhole tubular cutting technology plays a pivotal role in well repair, tubular replacement, and specialized completion processes, and it has attracted considerable attention in the drilling engineering field. In this study, an electromagnetically coupled downhole cutting tool (ECDCT) was developed by using a magnetic conductive component to cooperate with the structure and complete cutting and feeding coordination. This prototype effectively overcame the problems resulting from excessive motor numbers and high motor power requirements through the application of pure electric tools. Regarding the feeding of the ECDCT, the relationship between the braking torque of the magnetic powder brake and the excitation current was identified by analyzing its working principle. Besides, the cutting procedure was completed during the driving of the rack and pinion by utilizing the rack as the tool. Additionally, the tool feed was predicted and controlled by employing the relationship between excitation current changes and cutting force as the system transmission medium. Moreover, the output characteristics of braking torque, excitation current, and cutting force were calculated and simulated at different speeds. The results demonstrated that the difference in the feed cutting force and braking torque was about 5 % and 7 %, respectively, for every 5 rpm speed difference. In addition, an experimental platform of the ECDCT was established, and the experiments were conducted at 60 rpm. Through a comparison with the cutting control equation, the effectiveness of this control model was verified, with the calculation results in good agreement with the experimental data. Overall, the cutting control model is applicable to the feed speed prediction of the ECDCT, with the accuracy reaching up to 80 %. [ABSTRACT FROM AUTHOR]
Copyright of Measurement (02632241) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 184947142
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Analytical and experimental research on the cutting mechanical properties of an electromagnetically coupled downhole cutting tool.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Yongsheng%22">Liu, Yongsheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yongsheng@cugb.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chu%2C+Tianshu%22">Chu, Tianshu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 2102230060@email.cugb.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Xu%22">Huang, Xu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 2102210015@email.cugb.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Shangyu%22">Yang, Shangyu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> yangshangyu@cnpc.com.cn</i><br /><searchLink fieldCode="AR" term="%22Sun%2C+Qiang%22">Sun, Qiang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> sun_yuppy@petrochina.com.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Measurement+%2802632241%29%22">Measurement (02632241)</searchLink>. Sep2025:Part A, Vol. 253, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Electromagnetic+coupling%22">Electromagnetic coupling</searchLink><br /><searchLink fieldCode="DE" term="%22Cutting+force%22">Cutting force</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+particles%22">Magnetic particles</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+torque%22">Magnetic torque</searchLink><br /><searchLink fieldCode="DE" term="%22Cutting+tools%22">Cutting tools</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • The cutting control equation of the electromagnetic coupled downhole cutting tool is established. • The changing characteristics of cutting force, braking torque and excitation current in the feeding direction are analyzed. • Innovative experiments on the cutting characteristics of electromagnetic coupled downhole cutting tool were carried out. Downhole tubular cutting technology plays a pivotal role in well repair, tubular replacement, and specialized completion processes, and it has attracted considerable attention in the drilling engineering field. In this study, an electromagnetically coupled downhole cutting tool (ECDCT) was developed by using a magnetic conductive component to cooperate with the structure and complete cutting and feeding coordination. This prototype effectively overcame the problems resulting from excessive motor numbers and high motor power requirements through the application of pure electric tools. Regarding the feeding of the ECDCT, the relationship between the braking torque of the magnetic powder brake and the excitation current was identified by analyzing its working principle. Besides, the cutting procedure was completed during the driving of the rack and pinion by utilizing the rack as the tool. Additionally, the tool feed was predicted and controlled by employing the relationship between excitation current changes and cutting force as the system transmission medium. Moreover, the output characteristics of braking torque, excitation current, and cutting force were calculated and simulated at different speeds. The results demonstrated that the difference in the feed cutting force and braking torque was about 5 % and 7 %, respectively, for every 5 rpm speed difference. In addition, an experimental platform of the ECDCT was established, and the experiments were conducted at 60 rpm. Through a comparison with the cutting control equation, the effectiveness of this control model was verified, with the calculation results in good agreement with the experimental data. Overall, the cutting control model is applicable to the feed speed prediction of the ECDCT, with the accuracy reaching up to 80 %. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Measurement (02632241) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.measurement.2025.117453
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Electromagnetic coupling
        Type: general
      – SubjectFull: Cutting force
        Type: general
      – SubjectFull: Magnetic particles
        Type: general
      – SubjectFull: Magnetic torque
        Type: general
      – SubjectFull: Cutting tools
        Type: general
    Titles:
      – TitleFull: Analytical and experimental research on the cutting mechanical properties of an electromagnetically coupled downhole cutting tool.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Liu, Yongsheng
      – PersonEntity:
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            NameFull: Chu, Tianshu
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            NameFull: Huang, Xu
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            NameFull: Yang, Shangyu
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            NameFull: Sun, Qiang
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          Dates:
            – D: 01
              M: 09
              Text: Sep2025:Part A
              Type: published
              Y: 2025
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            – Type: issn-print
              Value: 02632241
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            – Type: volume
              Value: 253
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            – TitleFull: Measurement (02632241)
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