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25 September 2023 Buckling characteristics and safety analysis of tubing string in HTHP wells based on Abaqus
Zhanghua Lian, Dongchuan Yang, Qiang Zhang, Hao Yu, Zhaoyang Zhao
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Proceedings Volume 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023); 1278837 (2023) https://doi.org/10.1117/12.3005206
Event: Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 2023, Kuala Lumpur, Malaysia
Abstract
The main development target of the oil industry has shifted to high-temperature and high-pressure Wells. The buckling condition of the tubing string in the well has an important influence on the service safety of the tubing string. The existing calculation models do not consider the influence of casing string reducing diameter on the buckling state of casing string. Based on the temperature effect, gravity effect, casing contact and friction, casing string diameter reduction, the finite element model of casing string buckling in HTHP well X1 is established in this paper. The simulation results show that the string enters sinusoidal buckling state when the axial compression force is higher than 91kN, and spiral buckling state when the axial compression force is higher than 189kN. During the buckling process, the string safety factor is always higher than 1.25, and the string safety is supplemented. The research methods and results of this paper have a guiding role in the safe service of tubing string in HTHP Wells.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Zhanghua Lian, Dongchuan Yang, Qiang Zhang, Hao Yu, and Zhaoyang Zhao "Buckling characteristics and safety analysis of tubing string in HTHP wells based on Abaqus", Proc. SPIE 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 1278837 (25 September 2023); https://doi.org/10.1117/12.3005206
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KEYWORDS
Safety
Pipes
Finite element methods
Bending stress
Boundary conditions
Mathematical modeling
Transition metals
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