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Volume 13 - Winter & Spring 2020                   ijmt 2020, 13 - Winter & Spring 2020: 21-29 | Back to browse issues page

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Sharifi S M H, Pirali N. Reliability Assessment of Offshore Pipeline Due to Pitting Corrosion. ijmt. 2020; 13 :21-29
URL: http://ijmt.ir/article-1-679-en.html
1- Faculty of Mechanical Engineering, Petroleum University of Technology
2- Student in Offshore Structural Engineering, Petroleum University of Technology
Abstract:   (540 Views)
Pitting is one of the most localized forms of corrosion attacks which cannot be detected easily. Pitting decreases the pipe wall thickness and also the pipeline strength against environmental and operational loads. The purpose of this article is to investigate the most common reliability methods for estimating the maximum pitting depth and the effect of internal pressure on the remaining strength of corroded pipelines at different times in its lifetime service based on different failure pressure models using first-order approximation and sampling reliability methods. To investigate the effect of pitting growth and variation of internal pressure on pipeline characteristics, sensitivity analysis with gamma index several times in pipeline lifetime was performed. It is concluded that the first-order reliability method was applicable for ASME failure pressure models, also concluding that internal pressure and pipeline wall thickness are the most effective load and capacity parameters in failure probability of corroded pipelines. The reliability analysis was performed for two pipeline classes and two different pipeline wall thicknesses and it is concluded that the increase in pipeline wall thickness has more effect on decreasing the probability of failure (POF) of the pipeline than using a pipeline with higher classification.
Full-Text [PDF 769 kb]   (197 Downloads)    
Type of Study: Research Paper | Subject: Offshore Structure
Received: 2019/09/23 | Accepted: 2020/04/11

1. [1] E. Shekari, F. Khan, and S. Ahmed, "A predictive approach to fitness-for-service assessment of pitting corrosion," Int. J. Press. Vessel. Pip., vol. 137, pp. 13-21, Jan. 2016. [DOI:10.1016/j.ijpvp.2015.04.014]
2. [2] T. L. Anderson and D. A. Osage, "API 579: a comprehensive fitness-for-service guide," Int. J. Press. Vessel. Pip., vol. 77, no. 14-15, pp. 953-963, Dec. 2000. [DOI:10.1016/S0308-0161(01)00018-7]
3. [3] K. Rezazadeh, L. Zhu, Y. Bai, and L. Zhang, "Fatigue Analysis of Multi-Spanning Subsea Pipeline," in 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B, 2010, pp. 805-812. [DOI:10.1115/OMAE2010-20847]
4. [4] Z. Mustaffa, "System Reliability Assessment of Offshore Pipelines," University of Delft, 2011.
5. [5] M. G. Fontana, "Eight Forms of Corrosion," in Corrosion Engineering, Third edit., ohio: MacGraw-Hill publication, 1986, pp. 39-151.
6. [6] Yong Bai, Qiang Bai. "Subsea Corrosion and Scale",Elsevier BV, 2019 [DOI:10.1016/B978-0-12-812622-6.00017-8]
7. [7] R. Amaya-Gómez, M. Sánchez-Silva, E. Bastidas-Arteaga, F. Schoefs, and F. Muñoz, "Reliability assessments of corroded pipelines based on internal pressure - A review," Eng. Fail. Anal., vol. 98, no. 19, pp. 190-214, 2019. [DOI:10.1016/j.engfailanal.2019.01.064]
8. [8] N. Saeed, H. Baji, and H. Ronagh, "Reliability of corroded thin walled pipes repaired with composite overwrap," Thin-Walled Struct., vol. 85, pp. 201-206, 2014. [DOI:10.1016/j.tws.2014.08.020]
9. [9] O. S. Lee, D. H. Kim, and S. S. Choi, "Reliability of Buried Pipeline Using A Theory of Probability of Failure," vol. 110, pp. 221-230, 2006. [DOI:10.4028/www.scientific.net/SSP.110.221]
10. [10] S. X. Li, S. R. Yu, H. L. Zeng, J. H. Li, and R. Liang, "Predicting corrosion remaining life of underground pipelines with a mechanically-based probabilistic model," J. Pet. Sci. Eng., vol. 65, no. 3-4, pp. 162-166, 2009 [DOI:10.1016/j.petrol.2008.12.023]
11. [11] X. Jiang and C. Guedes Soares, "A closed form formula to predict the ultimate capacity of pitted mild steel plate under biaxial compression," Thin-Walled Struct., vol. 59, pp. 27-34, 2012. [DOI:10.1016/j.tws.2012.04.007]
12. [12] S. R. Freeman, Analysis and Prevention of Corrosion-Related Failures, vol. 2. 2002.
13. [13] E. Arzaghi et al., "Developing a dynamic model for pitting and corrosion-fatigue damage of subsea pipelines," Ocean Eng., no. December, pp. 1-6, 2017.
14. [14] M. Orazem, Underground Pipeline Corrosion, Detection, Analysis and Prevention, Elsevier Science, Woodhead Publishing series in metals and surface engineering, 2014.
15. [15] Rajani B, Makar J, McDonald S, Zhan C, Kuraoka S, Jen CK, et al. Investigation of grey cast iron water mains to develop a methodology for estimating service life. Denver, Colorado: American Water Works Association Research Foundation; 2000
16. [16] Li SX, Yu SR, Zeng HL, Li JH, Liang R. Predicting corrosion remaining life of underground pipelines with a mechanically-based probabilistic model. Journal of Petroleum Science and Engineering;65(3-4):162-6, 2009 [DOI:10.1016/j.petrol.2008.12.023]
17. [17] C.Q. Li, M. Mahmoodian, Risk based service life prediction of underground cast iron pipes subjected to corrosion, Reliability Engineering & System Safety 119,pp.102-108, 2013 [DOI:10.1016/j.ress.2013.05.013]
18. [18] R. E. Melchers, "The effect of corrosion on the structural reliability of steel offshore structures," Corros. Sci., vol. 47, no. 10, pp. 2391-2410, Oct. 2005. [DOI:10.1016/j.corsci.2005.04.004]
19. [19] A. K. Sheikh, J. K. Boah, and D. A. Hansen, "Statistical modeling of pitting corrosion and pipeline reliability," Corrosion, vol. 46, no. 3, pp. 190-197, 1990. [DOI:10.5006/1.3585090]
20. [20] B. Rajani, Investigation of Grey Cast Iron Water Mains to Develop a Methodology for Estimating Service Life. American Water Works Association, 2000.
21. [21] M. Dekker, "Corrosion Mechanisms," Qual. Reliab. Eng. Int., vol. 3, no. 3, Jul. 1987.
22. [22] R. Sadiq, B. Rajani, and Y. Kleiner, "Probabilistic risk analysis of corrosion associated failures in cast iron water mains," Reliab. Eng. Syst. Saf., vol. 86, no. 1, pp. 1-10, Oct. 2004. [DOI:10.1016/j.ress.2003.12.007]
23. [23] "DNV-OS-F101: Submarine Pipeline Systems October 2010," no. October, 2010.
25. [25] F. Van den Abeele, F. Boël, and J.-F. Vanden Berghe, "Structural Reliability of Free Spanning Pipelines," in Volume 3: Materials and Joining; Risk and Reliability, 2014, p. V003T12A023. [DOI:10.1115/IPC2014-33552]
26. [26] BOMEL Limited, "Probabilistic methods: Uses and abuses in structural integrity," in Probabilistic methods: Uses and abuses in structural integrity, no. 398/2001, 2001.
27. [27] BOMEL Limited, "STRUCTURAL RELIABILITY THEORY, UNCERTAINTY MODELLING AND THE INTERPRETATION OF PROBABILITY," in Probabilistic methods: Uses and abuses in structural integrity, no. 398/2001, 2001.
28. [28] O. Ditlevsen and H. O. Madsen, "Structural Reliability Methods," Book, p. 375, 2007.
29. [29] Mohammad Mahdi Shabani, Abdolrahim Taheri,
30. Mohammad Daghigh. "Reliability assessment of free
31. spanning subsea pipeline", Thin-Walled Structures, 2017.
32. [30] Y.-G. Zhao and T. Ono, "A general procedure for first/second-order reliabilitymethod (FORM/SORM)," Struct. Saf., vol. 21, no. 2, pp. 95-112, 1999. [DOI:10.1016/S0167-4730(99)00008-9]
33. [31] A. Der Kiureghian and T. Dakessian, "Multiple design points in first and second-order reliability," Struct. Saf., vol. 20, pp. 37-49, 1998. [DOI:10.1016/S0167-4730(97)00026-X]
34. [32] M. Mahmoodian and C. Q. Li, "Failure assessment and safe life prediction of corroded oil and gas pipelines," J. Pet. Sci. Eng., vol. 151, pp. 434-438, Mar. 2017. [DOI:10.1016/j.petrol.2016.12.029]
35. [33] M. Ahammed and R. E. E. Melchers, "Probabilistic analysis of underground pipelines subject to combined stresses and corrosion," Eng. Struct., vol. 19, no. 12, pp. 988-994, [DOI:10.1016/S0141-0296(97)00043-6]
36. [34] L. Vieillevigne, J. Molinier, T. Brun, and R. Ferrand, "Gamma index comparison of three VMAT QA systems and evaluation of their sensitivity to delivery errors," Phys. Medica, vol. 31, no. 7, pp. 720-725, 2015. [DOI:10.1016/j.ejmp.2015.05.016]
37. [35] J. I. Park, J. M. Park, J. in Kim, S. Y. Park, and S. J. Ye, "Gamma-index method sensitivity for gauging plan delivery accuracy of volumetric modulated arc therapy," Phys. Medica, vol. 31, no. 8, pp. 1118-1122, 2015. [DOI:10.1016/j.ejmp.2015.08.005]

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