Experimental studies of forward and backward whirls of drill-string

Marcin Kapitaniak, Vahid Vaziri, Joseph Páez Chávez, Marian Wiercigroch*

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Citations (Scopus)
6 Downloads (Pure)

Abstract

In this work we investigate forward and backward whirls of a drill-string using a novel experimental drilling rig (Wiercigroch, 2010) capable of reproducing major types of drill-string vibration, including stick-slip, bit-bounce and whirling. We focus our attention on whirling motion of the Bottom Hole Assembly (BHA) with a particular attention to the co-existence of forward and backward whirls. We present experimental results, showing for the first time co-existing whirling solutions and characterizing the parameter space in which different whirls can be observed. Those results are then used to calibrate a simple mathematical model, which can be used for further studies of whirling phenomena.
Original languageEnglish
Pages (from-to)454-465
Number of pages12
JournalMechanical Systems and Signal Processing
Volume100
Early online date5 Aug 2017
DOIs
Publication statusPublished - 1 Feb 2018

Fingerprint

Drill strings
Bottom-hole assembly
Drilling rigs
Stick-slip
Mathematical models

Keywords

  • experimental studies
  • drill-string dynamics
  • lateral vibration
  • forward and backward whirls
  • co-existing attractors

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Civil and Structural Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Computer Science Applications

Cite this

Experimental studies of forward and backward whirls of drill-string. / Kapitaniak, Marcin; Vaziri, Vahid; Páez Chávez, Joseph; Wiercigroch, Marian.

In: Mechanical Systems and Signal Processing, Vol. 100, 01.02.2018, p. 454-465.

Research output: Contribution to journalArticle

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