Analysis of friction & torque and casing running measures of a well in the South China Sea considering joint effect
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Published:2024
Issue:4 Part B
Volume:28
Page:3499-3504
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ISSN:0354-9836
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Container-title:Thermal Science
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language:en
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Short-container-title:Therm sci
Author:
Zheng Jinlong1, Wu Jiang1, Wang Wei1, Lin Siyuan1, Zhang Guanrui2
Affiliation:
1. CNOOC (China) Limited Zhanjiang Branch, Zhanjiang, China 2. MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, China
Abstract
The mechanical properties of the rotary drilling system are analyzed in depth
and the complex mechanical behaviors of integral tubular strings and the
effects of joints are studied. The results show that before the mechanical
calculation of the drilling string, the inversion of the friction
coefficient by the near-well data can improve the calculation accuracy of
the friction and torque of the string. Rotating casing can ensure smooth
running in the extended well. The injection of light medium can alle?viate
the axial force, but it is not enough to ensure safe running, which needs to
be combined with the rotating casing method. By increasing the rotation per
minute and reducing the weight on bit, the buckle of drill string can be
avoided.
Publisher
National Library of Serbia
Reference7 articles.
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