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A Reliability Assessment Method for Natural Gas Pipelines with Corroded Defects That Considers Detection Cycles

Author

Listed:
  • An Li

    (Construction Project Management Branch, National Petroleum and Natural Gas Pipeline Network Group Co., Ltd., Langfang 065000, China)

  • Feng Jin

    (National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China)

  • Yuan Li

    (Construction Project Management Branch, National Petroleum and Natural Gas Pipeline Network Group Co., Ltd., Langfang 065000, China)

  • Wen Lan

    (National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China)

  • Pan Liu

    (Construction Project Management Branch, National Petroleum and Natural Gas Pipeline Network Group Co., Ltd., Langfang 065000, China)

  • Zhifeng Yu

    (China Petroleum Pipeline Engineering Co., Ltd., Langfang 065000, China)

  • Kai Wen

    (National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China)

Abstract

With the development of natural gas pipelines, the proportion of aged pipelines in service has been increasing, and corrosion remains a primary cause of pipeline failure. Regular inspections and reliability assessments are crucial to ensure the safe operation of pipelines. This study investigated an efficient reliability assessment method for corroded pipelines that considers in-line inspection intervals. First, this study compared the commonly used limit state equations for corrosion defects to select one suitable for X80-grade steel pipelines. Additionally, a Tail-Fit Monte Carlo Simulation (TF-MCS) algorithm was proposed to improve the computational speed by 30 times compared to traditional Monte Carlo simulations. Then, this study explored the inspection intervals used for reliability assessments of corroded pipelines. Finally, the parameter sensitivity was analyzed considering the yield strength, maximum operating pressure, and pipe diameter. This study ensures the reliable operation of corroded gas pipelines.

Suggested Citation

  • An Li & Feng Jin & Yuan Li & Wen Lan & Pan Liu & Zhifeng Yu & Kai Wen, 2024. "A Reliability Assessment Method for Natural Gas Pipelines with Corroded Defects That Considers Detection Cycles," Energies, MDPI, vol. 17(14), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:14:p:3366-:d:1431660
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    References listed on IDEAS

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    1. Gong, C. & Zhou, W., 2018. "Importance sampling-based system reliability analysis of corroding pipelines considering multiple failure modes," Reliability Engineering and System Safety, Elsevier, vol. 169(C), pages 199-208.
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