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Evaluation of Real-Time Torque-Turn Charts With Application to Intelligent Make-Up

[+] Author Affiliations
Catalin Teodoriu, Jerome J. Schubert

Texas A&M University, College Station, TX

Holger Kinzel

Weatherford Oil Tools GmbH, Langenhagen, Germany

Paper No. OMAE2007-29518, pp. 803-811; 9 pages
  • ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 2: Structures, Safety and Reliability; Petroleum Technology Symposium
  • San Diego, California, USA, June 10–15, 2007
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4268-1 | eISBN: 0-7918-3799-8
  • Copyright © 2007 by ASME


A wide spectrum of power tongs can accommodate the increasing interest in mechanized operations at the rig floor. The importance of a torque-turn recording has been stated in many papers as a good control method for the make-up process, and the reliability of a drill string can be improved using feed back of make-up recordings. State-of-the-art devices not only allow the precise mechanized make-up of connections, but they also provide sufficient data to analyze the quality of the connection make-up. The motivation behind the research performed is the desire to make use of the data that are already provided to increases the lifetime of the connections and the reduction of drill string failures, especially for drilling under extreme downhole conditions like HPHT or deep water. This paper presents a new algorithm to evaluate the slope of the torque-turn recordings and to extract information that can be used to predict the quality of the process, with application to extreme drilling situations. This work is based on more than 300 make-up and break-out laboratory tests.

Copyright © 2007 by ASME
Topics: Torque



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