Volume 12 - Summer and Autumn 2019                   ijmt 2019, 12 - Summer and Autumn 2019: 41-48 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Sharifi M H, Taheri A, Faraji Pool M B. Assessment of Offshore Pipeline Reliability against Lateral Buckling. ijmt. 2019; 12 :41-48
URL: http://ijmt.ir/article-1-649-en.html
1- Department of Mechanical Engineering, Petroleum University of Technology
2- Petroleum University of Technology
Abstract:   (133 Views)
Subsea pipelines are used to transport gas and oil around the world. Oil is transported through subsea pipelines at high pressure and high temperature to smooth the way for its flow and to prevent its solidification. The present paper assesses a pipeline located in South Pars Gas Field against lateral buckling. As more and more pipelines operate at higher temperatures (over 100°C), the likelihood of lateral buckling becomes more relevant. The uncertainty in the lateral buckling parameters of the pipeline is a source of error in determining effective axial compressive force. Uncontrolled lateral buckling can cause excessive plastic deformation of the pipeline, which can lead to localized buckling collapse or cyclic fatigue failure during operation due to multiple heat-up and cool-down cycles, if it is not properly managed. This research reports the results of a reliability analysis to study and quantify the variations of the reliability index (β) with the main parameters involved during the lateral buckling of the subsea pipelines. Uncertainty is considered in the geometric parameters of the pipeline. The probability of failure (Pf) and the reliability index (β) can be determined by the reliability methods. The First-Order Reliability Method (FORM), the Second-Order Reliability Method (SORM) and the sampling method are the three main methods used here to determine Pf and β. The results show that the pipelines, in the case of lateral buckling and corrosion, will be in safe condition for up to 30 years after construction.
Full-Text [PDF 587 kb]   (46 Downloads)    
Type of Study: Research Paper | Subject: Offshore Structure
Received: 2019/01/28 | Accepted: 2019/09/21

1. Rezazadeh, K., Zhu, L., Bai, Y., and Zhang, L., (2010), Fatigue Analysis of Multi-Spanning Subsea Pipeline, 29th International Conference on Ocean, Offshore and Arctic Engineering, Vol.5, Parts A and B, p.805-812. [DOI:10.1115/OMAE2010-20847]
2. Karampour, H. and Albermani, F., (2014), Experimental and numerical investigations of buckle interaction in subsea pipelines, Eng.Struct.66, p.81-88. [DOI:10.1016/j.engstruct.2014.01.038]
3. Mustaffa, Z., (2011), System Reliability Assessment of Offshore Pipelines, Ph.D. thesis, University of Delft.
4. Bai, Q. and Bai, Y.,(2014),10 -Lateral Buckling and Pipeline Walking, in Subsea Pipeline Design, Analysis, and Installation, Q. Bai and Y. Bai, Eds. Boston: Gulf Professional Publishing, p. 221-253. [DOI:10.1016/B978-0-12-386888-6.00010-9]
5. Karampour, H., Albermani, F. and Gross, J., (2013), On lateral and upheaval buckling of subsea pipelines, Eng.Struct.52, p.317-330. [DOI:10.1016/j.engstruct.2013.02.037]
6. Elsayed T, Leheta H and Yehya A (2012), "Reliability of subsea pipelines against lateral instability", Ships and Offshore Structures 7(2):229-236. [DOI:10.1080/17445302.2010.532601]
7. Det Norske Veritas, (2013), Global Buckling of Submarine Pipelines, Structural Design due to High Temperature/High Pressure, DNV-RP-F110.
8. Carr, M., Sinclair, F., Bruton, D., (2006), Pipeline walking-Understanding the field layout challenges, and analytical solutions developed for the SAFEBUCK JIP. Houston: OTC 17945, Offshore Technology Conference. [DOI:10.4043/17945-MS]
9. Hobbs R.E. and Liang F., (1989), Thermal buckling of pipelines close to restraints, The Hague, The Netherlands: Offshore Mechanics and Arctic Engineering.
10. Det Norske Veritas, (2013), Submarine Pipeline Systems, DNV-OS-F101.
11. Rajeev, P., Robert, D.J., Thusyanthan, I. and Kodikara, J., (2013), Reliability analysis of upheaval bucking of offshore pipelines, Australian Geomechanics Journal, Vol.48, p.137-148.
12. Taheri, A., Shabani, M.M. and Daghigh, M., (2018), Investigation of the Effect of Local Buckling and VIV Fatigue on Failure Probability of Subsea Pipelines in Iranian South Pars Gas Field, IJMT, Vol.9, p.23-32. [DOI:10.29252/ijmt.9.23]
13. Sopyan, Y., "An Overview to Lateral Buckling and its Mitigation", 2016. [Online]. Available: https://pipelinemaster.wordpress.com/category/ pipeline-design/global-buckling. [Accessed: 2018].
14. Hobbs R.E., (1984), In-service buckling of heated pipelines, Transportation Engineering, Vol.110 (2), p.89-175. [DOI:10.1061/(ASCE)0733-947X(1984)110:2(175)]
15. Al-Sharif, A.M. and Preston, R., (1996), Structural Reliability Assessment of the Oman India Pipeline, OTC 8210, p.569-578. [DOI:10.4043/8210-MS]
16. Rathbone A., Abdel-Hakim M., Cumming G., Tørnes K., (2008), Reliability of lateral buckling formation from planned and unplanned buckle sites, Estoril, Portugal, OMAE2008- 57300, 27th International Conference on Offshore Mechanics and Arctic Engineering. [DOI:10.1115/OMAE2008-57300]
17. Brown G., Brunner M., Qi X., (2006), Lateral buckling reliability calculation methodology accounting for buckle interaction. Houston: OTC 17795, Offshore Technology Conference. [DOI:10.4043/17795-MS]
18. Carr M., Matheson I.C., Peek R., Saunders P., George N., (2004), Load and resistance modeling of the Penguins flowline under lateral buckling, 23rd International Conference on Offshore Mechanics and Arctic Engineering. Canada: Vancouver; OMAE 2004-51192. Offshore Mechanics and Arctic Engineering. [DOI:10.1115/OMAE2004-51192]
19. Shabani, M.M., (2017), Reliability Assessment of Existing Subsea Pipelines in the Persian Gulf, Master's thesis, Petroleum University of Technology. [DOI:10.1016/j.tws.2017.08.026]
20. Vanayi, H., Eslami, A., (2015), A Review of Inspection and Corrosion Rate Determination Methods, in Oil and Gas pipelines, 6th Iranian Pipe and Pipeline Conference, Iran, Tehran, Beheshti International Conference Center.
21. Van den Abeele, F., Boël, F. and VandenBerghe, J.F., (2014), Structural Reliability of Free Spanning Pipelines, Vol.3: Materials and Joining; Risk and Reliability [DOI:10.1115/IPC2014-33552]
22. BOMEL Limited, (2001), Probabilistic Methods: Uses and Abuses in Structural Integrity, in Probabilistic methods: Uses and abuses in structural integrity, no. 398/2001.
23. Kroese, D.P. and Rubinstein, R.Y., (2017) Simulation and the Monte Carlo method, Third ed., John Wiley & Sons, Inc., Hoboken, New Jersey [DOI:10.1002/9781118631980]

Send email to the article author

Creative Commons License
International Journal of Maritime Technology is licensed under a

Creative Commons Attribution-NonCommercial 4.0 International License.