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New Analysis Theory and Method for Drag and Torque Based on Full-Hole System Dynamics in Highly Deviated Well

Author

Listed:
  • Xiao-hua Zhu
  • Bo Li
  • Qing-you Liu
  • Xue-jun Chang
  • Liang-chuan Li
  • Kuan-liang Zhu
  • Xiao-feng Xu

Abstract

The research on calculation of torque and drag in highly deviated wells has demonstrated a significant gap against oil exploration and development; with the increasingly rigorous situation, the drill string dynamics and the contact or friction of drill pipe with borehole wall under the drill string action of dynamic need more attention and urgent research work. Based on full-hole system dynamics, three-dimensional nonlinear dynamic model and dynamic torque and drag model were established in highly deviated well by using the finite element method. An application of analyzing typical torque and drag problems presented here provides a means to more accurate description of the contact relation between drill string and wellbore. The results show that those models established in this paper have complete adaptability for a complex three-dimensional borehole trajectory. For the actual well application, it will help to evaluate security performance of drill string in complex working conditions.

Suggested Citation

  • Xiao-hua Zhu & Bo Li & Qing-you Liu & Xue-jun Chang & Liang-chuan Li & Kuan-liang Zhu & Xiao-feng Xu, 2015. "New Analysis Theory and Method for Drag and Torque Based on Full-Hole System Dynamics in Highly Deviated Well," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-13, May.
    • Handle: RePEc:hin:jnlmpe:535830
    DOI: 10.1155/2015/535830
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