Suppression of drill-string stick-slip vibration

Research output: Contribution to journalArticle

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Abstract

We investigate experimentally and numerically suppression of drill-string torsional vibration while drilling by using a sliding mode control. The experiments are conducted on the novel experimental drilling rig developed at the University of Aberdeen [1] and using PDC commercial drill-bits and real rock-samples. A mathematical model of the experimental setup which takes into account the dynamics of the drill-string and the driving motor, is proposed. Then a sliding mode control method is employed to suppress stick-slip oscillations. The experimental and numerical results considering a time delay of the actuator are in a close agreement. Stick-slip vibration is eliminated and significant reduction in vibration amplitude has been observed when using the controller.

Original languageEnglish
Article number16008
JournalMATEC Web of Conferences
Volume148
DOIs
Publication statusPublished - 2 Feb 2018
EventInternational Conference on Engineering Vibration - Sofia, Bulgaria
Duration: 4 Sep 20177 Sep 2017
http://www.icoev2017.org/

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Drill strings
Stick-slip
Sliding mode control
Drilling rigs
Vibrations (mechanical)
Time delay
Drilling
Actuators
Rocks
Mathematical models
Controllers
Experiments

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)

Cite this

Suppression of drill-string stick-slip vibration. / Vaziri, Vahid; Kapitaniak, Marcin; Wiercigroch, Marian.

In: MATEC Web of Conferences, Vol. 148, 16008, 02.02.2018.

Research output: Contribution to journalArticle

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