Torsional Vibration Control and Cosserat Dynamics of a Drill-Rig Assembly.

Tucker, Robin W. and Wang, Charles (2003) Torsional Vibration Control and Cosserat Dynamics of a Drill-Rig Assembly. Meccanica, 38 (1). pp. 145-161. ISSN 1572-9648

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Abstract

Aspects of drill-string vibrations in the context of a recently developed integrated model of a drill-rig assembly based on the Cosserat theory of rods are discussed. Computer simulations are used to compare existing rotary feedback strategies currently in use to optimise drilling performance where torsional slip-stick vibrations are a hazard. Guided by the wave nature of axial and torsional vibrations in axially symmetric drill-string configurations, we present a new control mechanism, torsional rectification, and compare its performance with existing controllers within the context of the model. The practical guidelines for the improvement of drilling rates in a wide variety of circumstances are discussed.

Item Type: Journal Article
Journal or Publication Title: Meccanica
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 10470
Deposited By: Users 810 not found.
Deposited On: 15 Jul 2008 13:25
Refereed?: Yes
Published?: Published
Last Modified: 30 Jul 2019 00:35
URI: https://eprints.lancs.ac.uk/id/eprint/10470

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