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Design and Mechanical Characteristics Analysis of Deep Sea Manifold System

Subsea manifolds are important equipment for offshore oil and gas extraction. The layout of the manifold is related to both the difficulty of fabrication and the installation and maintenance of the manifold. Based on 1500 m deep sea conditions and 68.9 MPa pipeline fluid pressure, the overall design of a double well groove and double collector subsea manifold is investigated, the selection of specific parameters is discussed in detail. The arrangement of different valves and pipelines and the efficiency of space volume usage are discussed. Stress analysis of the designed manifold as a whole was carried out using AutoPIPE software and its strength was assessed according to the applicable American Society of Mechanical Engineers (ASME) standards. It was found that the maximum stress ratio was 0.9 for radial stresses and relatively small for axial stresses, but both met the design requirements for deep sea manifold piping. Finally, linear and nonlinear buckling analyses of circular arc pipes were carried out, the fifth-order linear eigenvalue buckling modes, linear critical buckling load and nonlinear critical buckling load were obtained. It is found that the nonlinear critical buckling load was 20.5% lower than the linear critical buckling load. The failure mode of post-buckling is local dimple, which is located at the initial defect, indicating that early geometric defects have a greater influence on the load carrying limit of the pipe. This paper can provide a reference for the study of common technologies for the design of deepwater subsea pipeline manifolds and subsea production facilities.

Manifold System, Overall Design, Strength, Stability

APA Style

Chuxiang Lin, Weili Wang, Yongmei Zhu, Jian Zhang, Suzhou Zhang, et al. (2023). Design and Mechanical Characteristics Analysis of Deep Sea Manifold System. Engineering Science, 8(1), 6-13. https://doi.org/10.11648/j.es.20230801.12

ACS Style

Chuxiang Lin; Weili Wang; Yongmei Zhu; Jian Zhang; Suzhou Zhang, et al. Design and Mechanical Characteristics Analysis of Deep Sea Manifold System. Eng. Sci. 2023, 8(1), 6-13. doi: 10.11648/j.es.20230801.12

AMA Style

Chuxiang Lin, Weili Wang, Yongmei Zhu, Jian Zhang, Suzhou Zhang, et al. Design and Mechanical Characteristics Analysis of Deep Sea Manifold System. Eng Sci. 2023;8(1):6-13. doi: 10.11648/j.es.20230801.12

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

1. Sang Eui Lee, Jeom Kee Paik, Yeon Chul Ha, et al. An efficient design methodology for subsea manifold piping systems based on parametric studies. Ocean Engineering. 2014, 84 (6): 273-282.
2. Xu Wenhu, Guo Hong, Hong Yi, et al. Reliability analysis of subsea manifold system and improvement measures. Oil Field Equipment. 2016, 45 (03): 1-6.
3. Li Qingping, Zhu Haishan, Li Xinzhong, et al. The Current state and future of deep water subsea Production technology. China National Offshore Oil Research Institute. 2016, 18 (02): 76-84.
4. Wei Yan, Zhang Jinwei, Yu Chenglong, et al. A prospect of domestically manufactured subsea manifold. Shipbuilding of China. 2012, 53 (S2): 153-157.
5. Chuan Jian, Zhang Guangming, An Weizheng, et al. Research and practice of material localization of deep sea manifolds. China Offshore Platform. 2014, 29 (06): 20-24.
6. Gu Yongwei, Zhou Meizhen, Wang Changtao, et al. Main structural design and calculation method study of deep water subsea manifold. Mechanical Engineer. 2011. 236 (02): 134-135.
7. Liu Chao. Research on reliability analysis of subsea oil and gas production system. China, Master thesis. China University of Petroleum (East China), 2020.
8. Shang Zhaohui, Ruan Weidong, Qiao Hongdong, et al. Study on risk assessment and numerical simulation method of subsea manifold system. Ships and Offshore Structures, 2021, 16 (S1): 245-255.
9. Wang Yi, Wang Qi, Zhang Aixia, et al. A new optimization algorithm for the layout design of a subsea production system. Ocean Engineering, 2021, 232 (4): 109072.
10. Liu Chang, Cao Yuguang, Chen Jinzhong, et al. The blockage risk in the elbow of the Bi-directional pig used for submarine pipeline based on the modified Burgers-Frenkel (MB-F) model. Ocean Engineering. 2023, 268: 113508.
11. Zhang Jingan, Zhuo Wei, Cheng Gangli, et al. Piping System Design of Subsea Manifold. Applied Mechanics and Materials. 2013, 321-324: 1779-1783.
12. ISO 13628-15: Petroleum and natural gas industries — Design and operation of subsea production systems — Part 15: Subsea structures and manifolds, International organization for standardization: Geneva, Switzerland, 2011.
13. ASME B31.8: Gas Transmission and Distribution Piping Systems. The American Society of Mechanical Engineers: New York, USA. 2007.
14. ASME B31.4: Pipeline Transportation Systems for Liquids and Slurries. The American Society of Mechanical Engineers: New York, USA. 1999.
15. ASME B31.3: Process Piping. The American Society of Mechanical Engineers: New York, USA. 2012.
16. DNV-RP-F112: Design Of Duplex Stainless Steel Subsea Equipment Exposed To Cathodic Protection. Det Norske Veritas: Oslo, Norway, 2008.
17. API SPEC 5L. Specification for Line Pipe. American Petroleum Institute: Washington, DC, USA, 2007.
18. Bai Yong, Bai Qiang, et al. Subsea Engineering Design Manual - Subsea Pipelines Fascicle. Shanghai Jiao Tong University Press: Shanghai, Chain, 2014-8.
19. Liu Zihe, Guo Zhiyang, Mo Guanggui, et al. Study on buckling of rising section of multilayer marine gas production pipeline. Petrochemical applications. 2021, 40 (08): 32-37.