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Title of the article FEATURES OF BENDING STRESSES CALCULATION FOR A DRILL STRING PIPES AT OIL WELL DRILLING
Authors

GEGEDESH Maryna G., Ph. D. in Eng., Assoc. Prof., Dean of the Faculty of Mechanical Engineering, Sukhoi State Technical University of Gomel, Gomel, Republic of Belarus; Associate Professor of the Department “Technical Physics and Theoretical Mechanics”, Belarusian State University of Transport, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">maryna.g.kuzn@gmail.com

TKACHEV Victor M., Director of the Upgrading and Retraining Institute, Sukhoi State Technical University of Gomel, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">vmtkachev@gstu.by

BOCHAROV Nikita V., Student, Sukhoi State Technical University of Gomel, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">bocharov1401.nikita@gmail.com

In the section MECHANICS OF DEFORMED SOLIDS
Year 2025
Issue 2(71)
Pages 78–84
Type of article RAR
Index UDK 539.3/.6: 622.24.053.6
DOI https://doi.org/10.46864/1995-0470-2025-2-71-78-84
Abstract An analysis of the main loads acting on drill string pipes in the process of drilling an oil well is performed. The method is given for determining the total bending stresses arising in the drill string pipes, depending on the geometric parameters of the well, as well as taking into account the drill string operation, depending on the drilling equipment basic parameters (bit load and rotor speed). The calculation is made for the bending stress components caused by the well curvature, as well as the column stability parameters as a flat rod determined by the rotor speed and the bit load. An analysis of the influence of changing drilling parameters on the total amount of bending stress is carried out for various options of the drilling equipment operation. The dependences of the maximum bending stresses on the increased values of the bit load and the rotor speed are obtained. Conclusions are made on the influence of the main operating parameters of the drilling equipment on the magnitude of the bending stress experienced by the drill string pipes during the oil well drilling.
Keywords drill string, cyclic loading, bending stresses, fatigue damage, drill pipe wear
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Bibliography
  1. Kalenov O.E. Tsifrovizatsiya v gornodobyvayushchey promyshlennosti [Digitalization in the mining industry]. Vestnik of the Plekhanov Russian University of Economics, 2021, vol. 18, no. 5(119), pp. 184–192. DOI: https://doi.org/10.21686/2413-2829-2021-5-184-192 (in Russ.).
  2. Wilson A. RFID technology for deepwater drilling and completions challenges. Journal of petroleum technology, 2017, vol. 69, iss. 04, pp. 62–64. DOI: https://doi.org/10.2118/0417-0062-JPT.
  3. Gegedesh M.G., Bocharov N.V., Tkachev V.M., Turkevich A.A. Sovremennye podkhody k otsenke nakoplennogo ustalostnogo iznosa burilnykh trub [Modern approaches to assessing the accumulated fatigue wear of drilling pipes]. Sovremennye problemy mashinovedeniya, 2025, part 2, pp. 153–156 (in Russ.).
  4. Serebrennikov A.V., Bocharov N.V., Tkachev V.М. O nekotorykh putyakh povysheniya effektivnosti bureniya skvazhin (na primere neftyanykh mestorozhdeniy Respubliki Belarus) [On some ways to increase the efficiency of well drilling (on the example of oil fields of the Republic of Belarus)]. Bulletin Sukhoi State Technical University of Gomel, 2024, no. 4, pp. 105–118. DOI: https://doi.org/10.62595/1819-5245-2024-4-105-118 (in Russ.).
  5. Ostrovskiy I.R., Sirik V.F., Samkov V.N. Ispytanie burilnykh trub i ikh soedineniy [Testing of drill pipes and their joints]. Nauchnye trudy Donetskogo natsionalnogo tekhnicheskogo universiteta. Seriya: Gorno-geologicheskaya, 2011, no. 14(181), pp. 59–65 (in Russ.).
  6. Baldenko F.D. Raschety burovogo oborudovaniya [Calculations of drilling equipment]. Moscow, Rossiyskiy gosudarstvennyy universitet nefti i gaza im. I.M. Gubkina Publ., 2012. 428 p. (in Russ.).
  7. Tengesdal N.K., Fotland G., Holden C., Haugen B. Modeling of drill string dynamics in directional wells for real-time simulation. Simulation, 2023, vol. 99, iss. 9, pp. 937–956. DOI: https://doi.org/10.1177/00375497231175927.
  8. Bakirov D.L., et al. Prognozirovanie ostatochnogo resursa burilnykh trub [Forecasting the residual life of drill pipes]. Stroitelstvo neftyanykh i gazovykh skvazhin na sushe i na more, 2023, no. 12(372), pp. 13–18. DOI: https://doi.org/10.33285/0130-3872-2023-12(372)-13-18 (in Russ.).
  9. Bashmur K.A., Zharnakova M.S., Makolov V.A., Shadchina Yu.N. Vyazkostnyy metod gasheniya krutilnykh kolebaniy burilnoy kolonny [Viscosity method of damping torsional vibrations of the drill string]. Science prospects, 2021, no. 5(140), pp. 23–25 (in Russ.).
  10. Hou X., Long X., Meng G., Liu X. Nonlinear coupled motions of a pipe-in-pipe system experiencing vortex-induced vibrations. Nonlinear dynamics, 2024, vol. 112, iss. 14, pp. 11829–11850. DOI: https://doi.org/10.1007/s11071-024-09694-6.
  11. Ozguc O. Analysis of fatigue behaviour of drill pipe on pinbox connection. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of engineering for the maritime environment, 2021, vol. 235, iss. 1, pp. 68–80. DOI: https://doi.org/10.1177/1475090220950064.
  12. Santus C., Burchianti A., Inoue T., Ishiguro H. Fatigue resonant tests on S140 and S150 grade corroded drill pipe connections and pipe bodies. International journal of pressure vessels and piping, 2020, vol. 184. DOI: https://doi.org/10.1016/j.ijpvp.2020.104107.
  13. Yu Z., et al. The failure patterns and analysis process of drill pipes in oil and gas well: A case study of fracture S135 drill pipe. Engineering failure analysis, 2022, vol. 138. DOI: https://doi.org/10.1016/j.engfailanal.2022.106171.
  14. Zolotarev A.D. Metodologicheskaya model predotvrashcheniya otkazov [Methodological model of equipment failures prevention]. News of the Tula State University. Technical sciences, 2024, iss. 5, pp. 98–104. DOI: https://doi.org/10.24412/2071-6168-2024-5-98-99 (in Russ.).
  15. Spasova D., Argirov Ya., Atanasov N., Yankova R. Analysis of failure causes of S135 drill pipe. Materials today: Proceedings, 2022, vol. 59, part 3, pp. 1719–1725. DOI: https://doi.org/10.1016/j.matpr.2022.04.026.
  16. Tyrlych V., Moisyshyn V. Predicting remaining lifetime of drill pipes basing upon the fatigue crack kinetics within a pre-critical period. Mining of mineral deposits, 2019, vol. 13, iss. 3, pp. 127–133. DOI: https://doi.org/10.33271/mining13.03.127.
  17. Dao N.H., Sellami H. Stress intensity factors and fatigue growth of a surface crack in a drill pipe during rotary drilling operation. Engineering fracture mechanics, 2012, vol. 96, pp. 626–640.
    DOI: https://doi.org/10.1016/j.engfracmech.2012.09.025.
  18. Feodosev V.I. Soprotivlenie materialov [Resistance of materials]. Moscow, Moskovskiy gosudarstvennyy tekhnicheskiy universitet im. N.E. Baumana Publ., 1999. 592 p. (in Russ.).