Pipeline Integrated Management

Tuesday, February 16, 2016


In recent years risk analysis has become increasingly recognized as an effective tool for the management of safety, environmental pollution and financial risks in the pipeline industry. Risk assesment on offshore pipeline is one part in pipeline integrated management system.

Structure of Pipeline Integrated Management System





Pipeline integrity is:

  • Established during the concept, design and construction phases.
  • Transferred from the development phase to the operations phase. This interface involves transfer of vital data and information about the system.
  • Maintained in the operations phase.

Risk assessment and IM Planning


Risk assessment and IM Planning – main tasks and link to code requirements:

  • Define equipment/item scope ( i.e. all equipment/item that can lead to a failure)
  • For each equipment/item, identify all threats which can lead to a failure
  • For each threat; estimate risk

- Consequence of failure (CoF)
- Probability of failure (PoF)
  • Propose plans for:

- Inspection, monitoring and testing (IMT)
- Mitigation, intervention and repair (MIR)
- Integrity assessment (IA)




Flow diagram illustrating the different activities the integrity assessment process consists of

Overview of damages/anomalies vs. assessment codes


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Source:
Bai, Yong and Bai, Qiang. Subsea Pipelines And Risers. USA: Elsevier Inc. 2005.
http://www.dnv.pl/Binaries/5.%20Development%20of%20Pipeline%20Integrity%20Management%20System%20(PIMS)_Asle%20Venas_tcm144-482444.pdf

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