Influence of operating conditions on changes in mechanical properties of drill string steel elements
DOI:
https://doi.org/10.31471/2304-7399-2026-22(83)-234-247Keywords:
drill string, drill pipe, tool joint, tool joint threaded connection, mechanical properties, temperature, property degradation, residual life.Abstract
The article presents the results of a study on the effect of complex operating conditions on changes in the mechanical properties of steels used in drill string components. The aim of the work is the experimental determination of the actual properties of materials of drill string elements and their analysis after long-term operation under the influence of working environments and other operational factors.
It has been established that the operation of drill string elements under the combined action of mechanical loads, elevated temperatures, and hydrogen-containing environments leads to intensive hydrogen saturation of steels (an increase in CH by 4–7 times), while elevated temperature further intensifies the diffusion and accumulation of hydrogen in steel.
It is shown that with minor changes in strength characteristics (up to
3–5%) under the influence of temperature and hydrogenation, a decrease in impact toughness (by 5–15%) occurs, indicating an increased sensitivity of fracture resistance characteristics to the combined action of these factors.
A correlation between hydrogen concentration and the reduction of KCV has been established, with elevated temperature enhancing the manifestations of hydrogen embrittlement, especially in high-strength steels with a quenched and tempered structure (in particular, 30KhGSA). The obtained results can be used to assess the residual life of drill string components.
References
1. Zheng Y., Zhang Y., Sun B., Zhang B., Zhang S., Jin S., Xiao Z., Chu S., Jing Y., Zhang Z. Corrosion Behavior and Mechanical Performance of Drill Pipe Steel in a CO₂/H₂S-Drilling-Fluid Environment // Processes. 2024. Vol. 12, No. 3. Art. 502. DOI: 10.3390/pr12030502.
2. Luo S., Liu M., Shen Y., Lin X. Sulfide Stress Corrosion Cracking Behavior of G105 and S135 High-Strength Drill Pipe Steels in H₂S Environment // Journal of Materials Engineering and Performance. 2019. Vol. 28, No. 3. DOI: 10.1007/S11665-019-03913-7.
3. Han L., Liu M., Luo S., Lu T. J. Fatigue and corrosion fatigue behaviors of G105 and S135 high-strength drill pipe steels in air and H₂S environment // Process Safety and Environmental Protection. 2019. Vol. 124. P. 63–74. DOI: https://doi.org/10.1016/j.psep.2019.01.023.
4. Liu M., Luo S., Shen Y., Lin X. Corrosion fatigue crack propagation behavior of S135 high-strength drill pipe steel in H₂S environment // Engineering Failure Analysis. 2019. Vol. 97. P. 493–505. DOI: https://doi.org/10.1016/j.engfailanal.2019.01.026.
5. Corrosion Fatigue Behavior of S135 Drill Pipe Steel in H₂S Environment // Materials for Mechanical Engineering. 2017. Vol. 41, No. 6. P. 44–48. DOI: https://doi.org/10.11973/jxgccl201706011.
6. Luo S., Liu M., Lin X. Corrosion fatigue behavior of S135 high-strength drill pipe steel in a simulated marine environment // Materials and Corrosion. 2019. Vol. 70. P. 688–697. DOI: https://doi.org/10.1002/maco.201810542.
7. Huang B., Yang J., Zhang H., Liu G., Chen Y., Li J. Influence of H₂S Corrosion on Rotating Bending Fatigue Properties of S135 Drill Pipe Steel // Transactions of the Indian Institute of Metals. 2018. DOI: https://doi.org/10.1007/s12666-017-1135-5.
8. Zhong X., He Y., Eliaz N., Campbell K. S., Hu J. Hydrogen effect on phase angle shift in electrochemical impedance spectroscopy during corrosion fatigue crack emanation // International Journal of Hydrogen Energy. 2021. Vol. 46, No. 80. P. 40175–40184. DOI: https://doi.org/10.1016/j.ijhydene.2021.09.205.
9. О. Ю. Витязь, Р. С. Грабовський, В. В. Тирлич, Грабовська Н.Р. Статистичний аналіз відмов бурильних труб груп міцності S-135. Розробка нафтових та газових родовищ. – 2022. – №1 (82). – С.61-68. DOI: 10.31471/1993-9973-2022-1(82)-61-68.
10. О. Ю. Витязь, Р. С. Грабовський, В. І. Артим, В. В. Тирлич, Грабовська Н.Р. Чисельно-експериментальна оцінка умов руйнування тривало експлуатованих бурильних труб. Розробка нафтових та газових родовищ. – 2020. – №2 (75). – С.88-97. DOI: 10.31471/1993-9973-2020-2(75)-88-97.
11. LECO DH603. Manual, LECO Corporation, 2019.
12. Національний стандарт України. ДСТУ ISO 6892–1:2019 (ISO 6892–1:2016, IDT). Металеві матеріали. Випробування на розтяг. Части-на 1. Метод випробувань за кімнатної температури. Київ: ДП „УкрНД-НЦ”, 2020, с. 70.
13. Національний стандарт України. ДСТУ EN 10002–5:2006 (EN 10002–5:1991, IDT). Металеві матеріали. Випробування на розтяг. Час-тина 5. Метод випробувань за підвищених температур. Київ: Держспо-живстандарт України, 2008, с. 24.
14. Національний стандарт України. ДСТУ ISO 148–1:2022 (ISO 148–1:2016, IDT). Металеві матеріали. Випробування на ударний вигин за Шарпі на маятниковому копрі. Частина 1. Метод випробування. Київ: ДП „УкрНДНЦ”, 2022, с. 26.
15. Jack T., Webb M.A., Rahman K.M.M., Fazeli F., Szpunar J. Hydrogen uptake and embrittlement behavior in pipeline steels: Insights from slow strain rate testing and synchrotron micro CT imaging. Engineering Failure Analysis. 2025. Vol. 172. Art. no. 109419.
16. Paterlini L. et al. Mechanical testing methods for assessing hydrogen embrittlement of pipeline steels in high pressure hydrogen environments. Metals. 2025. Vol. 15, Is. 10. Art. no. 1123.
17. Rahimi S., Verbeken K., Depover T., Proverbio E. Hydrogen embrittlement of pipeline steels under gaseous and electrochemical charging: A comparative review on tensile properties. Engineering Failure Analysis. 2025. Vol. 167. Art. no. 108956.
18. Dadfarnia M., Nagao A., Sofronis P. Hydrogen interaction with defects. Acta Materialia. 2015. Vol. 98. P. 1-13.
19. Zvirko O., Tsyrulnyk O., Lipiec S., Dzioba I. Evaluation of corrosion, mechanical properties and hydrogen embrittlement of casing pipe steels with different microstructure. Materials. 2021. Vol. 14, Is. 24. Art. no. 7860.
20. Wahab Chowdhury M., et al. Hydrogen effects on fracture toughness and tensile properties of pipeline steels: A review. Materials Science and Engineering: A. 2025. Vol. 825. Art. no. 142746.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 В. І. Артим, Б. А. Новосельський, І. О. Ластівка
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
