Managing oil drilling efficiency in bend drill pipes-an under actuated system perspective

F. Abdul Majeed, H. Karki, M. Karkoub, Y. L. Abdel Magid

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Lateral vibrations are known to be the most destructive type of vibrations affecting rotary drilling. A whirling drill bit is one of the most prominent outcomes of lateral vibrations. Hence, it is imperative to research methodologies to minimize the drill bit whirl in order to maximize rotary drilling efficiency. Drill bit whirl can be either due to a bend drill string or due to the effect of an unbalanced drill bit. Both the cases lead to an in homogenous borehole which leads to increase in severity of the vibrations. This paper presents an analysis of the controllability of the drill bit whirl in bend drill pipes. Experimental tests conducted are analyzed and presented. The bit whirl due to drill bit bend is discussed as a probable special case of an under actuated system. A few typical under actuated system control issues are presented and the applicability of controllability solutions to the bend drill string whirl problem is discussed.

Original languageEnglish
Title of host publication2011 World Congress on Sustainable Technologies, WCST 2011
Pages118-122
Number of pages5
Publication statusPublished - 1 Dec 2011
Event2011 World Congress on Sustainable Technologies, WCST 2011 - London, United Kingdom
Duration: 7 Nov 201110 Nov 2011

Publication series

Name2011 World Congress on Sustainable Technologies, WCST 2011

Other

Other2011 World Congress on Sustainable Technologies, WCST 2011
CountryUnited Kingdom
CityLondon
Period7/11/1110/11/11

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Keywords

  • bend drill string
  • control
  • drill pipes
  • experimental
  • imbalanced mass
  • under actuated system
  • whirl

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Abdul Majeed, F., Karki, H., Karkoub, M., & Abdel Magid, Y. L. (2011). Managing oil drilling efficiency in bend drill pipes-an under actuated system perspective. In 2011 World Congress on Sustainable Technologies, WCST 2011 (pp. 118-122). [6114252] (2011 World Congress on Sustainable Technologies, WCST 2011).