Paper Title:
Finite Element Analysis on Axial-Torsional Coupled Vibration of Drill String
  Abstract

In the drilling process, axial vibration, transverse vibration and torsional vibration happen to drilling string. And the coupled vibration is more complex. In the resonance state, drilling string collides with the wall, which causes serious damage on drilling string in a short time and results in economic loss to the drilling operation. In this paper, the regularity of coupled vibration is analyzed by using finite element method. The model of full-hole drilling strings is established. The distribution regularities of coupled resonant frequency are obtained through computer analysis. The coupled model is more accurate than single vibration model. And the gaps of high rotary speed resonance regions are larger. Resonance state can be avoided by changing rotary speed, and drilling accidents can be reduced.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Vibration, Noise Analysis and Control
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
1952-1956
DOI
10.4028/www.scientific.net/AMR.291-294.1952
Citation
X. L. Bi, J. Wang, Z. L. Wang, S. H. Sun, "Finite Element Analysis on Axial-Torsional Coupled Vibration of Drill String", Advanced Materials Research, Vols. 291-294, pp. 1952-1956, 2011
Online since
July 2011
Export
Price
$32.00
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