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Drillstring Buckling Prediction and Its Impact on Tool-Joint Effects in Extended Reach Wells

Received: 7 December 2020     Accepted: 28 December 2020     Published: 4 January 2021
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Abstract

The mechanism of buckling has been extensively studied in pipes and tubings. But these studies more often has been restricted to continuous or straight body pipes. In reality most pipes and other drillstring elements have end couplings or connections known as tool joint. Tool joint presence changes the annular geometry, hydraulics and stress distribution of the pipe or tubulars in the wellbore. Modelling drillstring in highly deviated wells with no regards to the tool joint effects has been a major source of error in many drilling mechanics analysis. This has often led to misleading information on buckling and bending of the pipe which could lead to drilling and completion problems and costly well interventions. Thus it becomes necessary to model tool joint effect in the drillstring as it is subjected to downhole forces and stresses. In this study, emphasis is made on the determination of tool joint effect on pipe buckling for highly deviated extended reach wells (ERWs). WellPlan T&D spreadsheet software was used for the simulation. The simulation was runned for pipe with tool joint and the same pipe with the tool joints removed. Results show that jointed pipes has similar buckling behaviour with continuous straight body pipes with buckling starting from sinusoidal buckling mode and gradually entering the helical buckling mode for both types of pipes. Furthermore, result revealed that tool joint presence increases the critical buckling force by an average of 28.9% for helical as well as (AWA) sinusoidal buckling modes.

Published in International Journal of Oil, Gas and Coal Engineering (Volume 8, Issue 6)
DOI 10.11648/j.ogce.20200806.16
Page(s) 157-166
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Wellbore, Tubular, Modelling, Trajectories, Helical, Sinusoidal

References
[1] Agbaji, A. L. (2011). Optimizing The Planning, Design and Drilling of Extended Reach and Complex Wells. SPE 149099-MS.
[2] Kerunwa A. (2020). Evaluation of the Impact of pH on the Rheological Property of Drilling Fluid Formulated with Mucuna flagellipeand Brachystegia eurycoma. Pet. Coal 62 (4): 1586-1594.
[3] Kerunwa A. (2020). Contributory Influence of Drill Cuttings on Equivalent Circulation Density Model in Deviated Wellbores. Int. J. Oil, Gas Coal Eng., 8 (4): 82-90.
[4] Hamdan K. F. B. Harkouss R. and Chakra H. A. (2015). An overview of Extended Reach Drilling: Focus on design considerations and drag analysis. IEEE Xplore, November.
[5] Mitchel, R. F (2002a). New buckling solutions for extended reach wells. SPE 74566-MS.
[6] Vavasseur D, Mackenzie N., Nobbs B., Brillaud L., Aichinger F. and Dao N. (2006). Casing wear and stiff string modelling sensitivity analyses- The contribution of DP pipe-body and Tool-joint on casing contact. SPE-183388-MS.
[7] Lubinski A. A (1950). Study of the buckling of rotary drilling strings. Am Pet Inst. 224 (1): 123–65.
[8] Paslay P. R. and Bogy D. B. (1964). The stability of a circular rod laterally constrained to be in contact with an inclined circular cylinder. J. Appl. Mech. 31 (3): 605–610.
[9] Ziegler H. (1977): Principles of Structural Stability. BirkhauserVerlag Basel.
[10] Mitchell R. F. (1982). Buckling behavior of well tubing: the Packer effect. Soc Pet Eng J. 22 (5): 616–24.
[11] Mitchell R. F. (1986). Simple frictional analysis of helical buckling of tubing. SPE-13064-PA.
[12] Mitchell R. F. (1988). New concepts for helical buckling. SPE-15470-PA.
[13] Mitchell R. F. (1999) Helical buckling of pipe with connectors in vertical wells. SPE 52847.
[14] Mitchell R. F. (2000). Lateral buckling of pipe with connectors in curved wellbores. SPE 59146.
[15] Mitchell R. F. and Miska S. (2006) Helical buckling of pipe with connectors and Torgue. SPE 87205-PA.
[16] Menand S., Sellami H., Akowanou J., Simon C., Macresy L. P. Y., Isambourg P. and Dupuis D. C. (2008). How drillstring rotation affects critical buckling load? SPE-112571-MS.
[17] Gao D. L. and Liu F. W. (2013). The post–buckling behavior of a tubular string in an inclined wellbore. Comput Model Eng Sci. 90 (1): 17–36.
[18] Gao D. L. and Huang W. J. (2015). A review of down-hole tubular string buckling in well engineering. Pet. Sci. (12): 443–457.
[19] Gao D. L, Lui F. W. and Xu B. Y. (2002). Buckling behavior of pipes in oil & gas wells. Prog Nat Sci. 12 (2): 126–30.
[20] Gao D. L. (2006). Down-hole tubular mechanics and its applications. Dongying China Uni. Petrol. Press.
[21] Tikhonov, V. S., Safronov A. I., Gelfgat M. Y. Basovich V. S. (2000) study of helical buckling of pipe with tool joints and pads. ETCE/OMAE Paper.
[22] Duman OB, Miska S, Kuru E. (2003a) Effect of tool joints on contact force and axial–force transfer in horizontal wellbores. SPE/IADC 72278-MS. http://dx.doi.org/10.2118/72278-MS.
[23] Duman OB, Miska S, Kuru E. (2003b) Effect of tool joints on contact force and axial–force transfer in horizontal wellbores. SPE Drill Completion 18 (03): 267–274.
Cite This Article
  • APA Style

    Anthony Kerunwa. (2021). Drillstring Buckling Prediction and Its Impact on Tool-Joint Effects in Extended Reach Wells. International Journal of Oil, Gas and Coal Engineering, 8(6), 157-166. https://doi.org/10.11648/j.ogce.20200806.16

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    ACS Style

    Anthony Kerunwa. Drillstring Buckling Prediction and Its Impact on Tool-Joint Effects in Extended Reach Wells. Int. J. Oil Gas Coal Eng. 2021, 8(6), 157-166. doi: 10.11648/j.ogce.20200806.16

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    AMA Style

    Anthony Kerunwa. Drillstring Buckling Prediction and Its Impact on Tool-Joint Effects in Extended Reach Wells. Int J Oil Gas Coal Eng. 2021;8(6):157-166. doi: 10.11648/j.ogce.20200806.16

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  • @article{10.11648/j.ogce.20200806.16,
      author = {Anthony Kerunwa},
      title = {Drillstring Buckling Prediction and Its Impact on Tool-Joint Effects in Extended Reach Wells},
      journal = {International Journal of Oil, Gas and Coal Engineering},
      volume = {8},
      number = {6},
      pages = {157-166},
      doi = {10.11648/j.ogce.20200806.16},
      url = {https://doi.org/10.11648/j.ogce.20200806.16},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20200806.16},
      abstract = {The mechanism of buckling has been extensively studied in pipes and tubings. But these studies more often has been restricted to continuous or straight body pipes. In reality most pipes and other drillstring elements have end couplings or connections known as tool joint. Tool joint presence changes the annular geometry, hydraulics and stress distribution of the pipe or tubulars in the wellbore. Modelling drillstring in highly deviated wells with no regards to the tool joint effects has been a major source of error in many drilling mechanics analysis. This has often led to misleading information on buckling and bending of the pipe which could lead to drilling and completion problems and costly well interventions. Thus it becomes necessary to model tool joint effect in the drillstring as it is subjected to downhole forces and stresses. In this study, emphasis is made on the determination of tool joint effect on pipe buckling for highly deviated extended reach wells (ERWs). WellPlan T&D spreadsheet software was used for the simulation. The simulation was runned for pipe with tool joint and the same pipe with the tool joints removed. Results show that jointed pipes has similar buckling behaviour with continuous straight body pipes with buckling starting from sinusoidal buckling mode and gradually entering the helical buckling mode for both types of pipes. Furthermore, result revealed that tool joint presence increases the critical buckling force by an average of 28.9% for helical as well as (AWA) sinusoidal buckling modes.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Drillstring Buckling Prediction and Its Impact on Tool-Joint Effects in Extended Reach Wells
    AU  - Anthony Kerunwa
    Y1  - 2021/01/04
    PY  - 2021
    N1  - https://doi.org/10.11648/j.ogce.20200806.16
    DO  - 10.11648/j.ogce.20200806.16
    T2  - International Journal of Oil, Gas and Coal Engineering
    JF  - International Journal of Oil, Gas and Coal Engineering
    JO  - International Journal of Oil, Gas and Coal Engineering
    SP  - 157
    EP  - 166
    PB  - Science Publishing Group
    SN  - 2376-7677
    UR  - https://doi.org/10.11648/j.ogce.20200806.16
    AB  - The mechanism of buckling has been extensively studied in pipes and tubings. But these studies more often has been restricted to continuous or straight body pipes. In reality most pipes and other drillstring elements have end couplings or connections known as tool joint. Tool joint presence changes the annular geometry, hydraulics and stress distribution of the pipe or tubulars in the wellbore. Modelling drillstring in highly deviated wells with no regards to the tool joint effects has been a major source of error in many drilling mechanics analysis. This has often led to misleading information on buckling and bending of the pipe which could lead to drilling and completion problems and costly well interventions. Thus it becomes necessary to model tool joint effect in the drillstring as it is subjected to downhole forces and stresses. In this study, emphasis is made on the determination of tool joint effect on pipe buckling for highly deviated extended reach wells (ERWs). WellPlan T&D spreadsheet software was used for the simulation. The simulation was runned for pipe with tool joint and the same pipe with the tool joints removed. Results show that jointed pipes has similar buckling behaviour with continuous straight body pipes with buckling starting from sinusoidal buckling mode and gradually entering the helical buckling mode for both types of pipes. Furthermore, result revealed that tool joint presence increases the critical buckling force by an average of 28.9% for helical as well as (AWA) sinusoidal buckling modes.
    VL  - 8
    IS  - 6
    ER  - 

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Author Information
  • Department of Petroleum Engineering, Federal University of Technology, Owerri, Nigeria

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