Ning Zhang1, Xiao Liu2, Taiyuan Liu2, and Baojiang Sun This email address is being protected from spambots. You need JavaScript enabled to view it.1

1School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
2Qingdao Ocean Engineering and Subsea Equipment Inspection & Testing Co., Ltd. Qingdao, China


Received: April 12, 2022
Accepted: August 22, 2022
Publication Date: November 2, 2022

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

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As a key equipment of the subsea production system, the deep-water manual gate valve is typically in an extremely complex working environment, making its reliability crucial. In this paper, the reliability model of a deep-water manual gate valve is established according to the Markov method. The main failure modes of deep-water manual gate valve are failure to open on demand, failure to close on demand, leakage of fluid media, and leakage when closing by failure mode effects and criticality analysis. According to the established Markov equation set, the steady-state availability and mean time to failure of the system are calculated. The results show that the most effective way to improve the reliability of the deep-water manual gate valve is to reduce the failure rate during normal operation. Meanwhile, the repair time and test completion rate should be shortened and improved. According to the research results, this paper proposes a plan to standardize the valve manufacturing and establish a maintenance test system.

Keywords: Deep-water manual gate valve; reliability; failure mode effects and critically analysis; Markov method; steady-state availability; mean time to failure


  1. [1] L. Shi, X. Z. Ju, F. Zhang, Y. Cao, C. T. Zhong, and X. P. Chen, (2019) “Subsea Valve Development and Engineering Application" Valve (1): 24–27.
  2. [2] G. F. Li,W. X. Shi, P. Jiang, X. Q. Zhang, and S. P. Yang, (2021) “Engineering Development Technology of Deepsea Underwater Valve" Development and Application of Materials 36(2): 98–102.
  3. [3] S. Mamman, A. J. A., and I. Ibiye, (2009) “Improving The Reliability of Subsea Valves" SPE 128347: DOI: 10.2118/128347-MS.
  4. [4] C. Y. Wan, X. F. Jia, D. Y. Wang, W. X. Liu, X. J. Wang, and N. Li, (2021) “Analysis on Localized Key Technologies of Gate Valve and Actuator Used in Subsea Christmas Tree" China Petroleum Machinery 9(49): 73–78.
  5. [5] N. Pang, P. Jia, L. Q. Wang, F. H. Yun, N. Zhang, and P. Liu, (2021) “Reliability Analysis of Underwater Connector Structure" Journal of Harbin Engineering University 42(1): 68–73.
  6. [6] J. F. Wang, L. Chen, and W. H. Yang, (2021) “A Single Machine Scheduling Problem Considering Availability Constraints" Journal of Shanghai Jiaotong University 55(1): 103–110.
  7. [7] J. F. Klingsheim. “Reliability Assessment of Subsea BOP Shear Ram Preventers". (phdthesis). Norway: Norwegian University of Science and Technology, 2015.
  8. [8] T. Kosmas, N. Ioannis, and V. Dimitris, (2013) “A System of Systems Framework for the Reliability Assessment of Telecommunications Networks" IEEE Systems Journal 7(1): 114–124. DOI: 10.1109/JSYST.2012.2207274.
  9. [9] X. D. He and C. Nie, (2010) “Reliability Optimization Design of Structure Systems Based on Bayesian Theory" China Mechanical Engineering 21(6): 660–662.
  10. [10] V. A and M. Pandey, (2011) “Reliability analysis of nuclear component cooling water system using semi-Markov process model" Nuclear Engineering and Design 241(5): 1799–1806. DOI: 10.1016/j.nucengdes.2011.01.040.
  11. [11] Q. N. Qin. “The Reliability Modeling, Analysis and Comprehensive Evaluation Method of Complex Systems". (phdthesis). Beijing: Beijing Jiaotong University, 2013, 61–65.
  12. [12] G. J.Wu, Y.Wang, Y. L. Shang, and C. B. Yan, (2012) “Reliability Analysis of Repairable System Based on GOFLOW Method" Nuclear Power Engineering 33(2):25–29.
  13. [13] F. Zhang, M. Z. Zhou, Y. Jiang, X. Z. Ju, and G. K. Xing, (2014) “Type Selection and Material Requirements of the Subsea Manifold Valve" Ship & Ocean Engineering 43(2): 135–138.
  14. [14] D. P. Yu. “Study on Safety Evaluation of Sluices Based on Fuzzy FMECA Method". (mathesis). Zhengzhou, Henan: North China University of Water Resources and Hydro Power, 2019.
  15. [15] DNVGL RP A203, Technology Qualification. Norway: DNVGL. 2019.
  16. [16] Offshore Reliability Data Handbook. Norway: DNVGL.2015.
  17. [17] Z. K. Liu, Y. H. Liu, and B. P. Cai, (2014) “Reliability analysis of the electrical control system of subsea blowout preventers using Markov models" Plos One 9(11): e113525. DOI: 10.1371/journal.pone.0113525.
  18. [18] B. P. Cai, Y. H. Liu, Z. K. Liu, X. J. Tian, H. Li, and C. K. Ren, (2012) “Reliability Analysis of Subsea Blowout Preventer Control Systems Subjected to Multiple Error Shocks" Journal of Loss Prevention in the Process Industries 25(6): 1044–1054. DOI:
  19. [19] M. Rausand and A. Hoyland. System reliability theory: models, statistical methods, and applications. 396. John Wiley & Sons, 2003.
  20. [20] C. Liu, J. Liu, Y. Zhu, L. I. Quan, and W. Xiao, (2019) “Reliability Analysis of Subsea X-max Tree System Based on Markov Process" Journal of Xi’an Shiyou University (Natural Science Edition) 34(5): 91–96 + 115.
  21. [21] Z. Liu. “Research on Reliability and Fault Diagnosis Methodology of Subsea Blowout Preventer System". (phdthesis). Qingdao, Shandong: China University of Petroleum (East China), 2016, 12–22.
  22. [22] J. Ou, A.-H. Li, B. Xv, and F.-S. Zheng, (2011) “Reliability assessment for diesel engine monitoring system based on Markov process" Jidian Gongcheng/ Mechanical & Electrical Engineering Magazine 28(11): 1319–1323.
  23. [23] Specification, API and others. Design and Operation of Subsea production Systems–Subsea Wellhead and Tree Equipment. 2018.
  24. [24] API 6A, Specification for wellhead and Christmas tree equipment. American: API. 2010.
  25. [25] J. S. Qiu, S. J. Li, S. G. Liu, H. S. Shu, D. Zhao, and Z. Zhou, (2012) “Research on The Reliability Life of a Vessel Special Valve Based on Few-failure Data" Journal of Harbin Engineering University:
  26. [26] X. P. Chen, Y. Q. Bao, C. Luo, X. Z. Ju, and L. Shi, (2016) “Reliability design of underwater valves" Petro & Chemical Equipment 19(9): 21–23 + 26.


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