Paper Title:
Out-Plane Stability of Derrick of Inclined Drilling Rig
  Abstract

K-type derrick of inclined drilling rig that is top driving is usually loaded by axial compression, lateral force and concentrated torque simultaneously, and is more prone to out-plane instability due to its poor torsional rigidity. Here the upper segment of derrick was simplified as cantilever beam-column with laced-bar lattice structure. Stability model was established by energy method, and Ritz method was employed to obtain deformation curves for lateral deflection and torsion. Effects of dip angle of derrick and position of top drive on deformation were analyzed. At last the out-plane instability process of derrick is presented by increasing longitudinal compressive force gradually. For ultimate loads of well drilling condition, out-plane stability requirement of derrick is met.

  Info
Periodical
Advanced Materials Research (Volumes 199-200)
Edited by
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
Pages
518-521
DOI
10.4028/www.scientific.net/AMR.199-200.518
Citation
G. H. Zhao, Z. Liang, F. G. Jiang, J. L. Tian, L. Zhang, "Out-Plane Stability of Derrick of Inclined Drilling Rig", Advanced Materials Research, Vols. 199-200, pp. 518-521, 2011
Online since
February 2011
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Price
$32.00
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