Guidance on United Kingdom continental shelf (UKCS) subsea pipeline decommissioning including comparative assessment (CA) and interim pipeline regime (IPR)

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EI Publications

  • Published: October 2019
  • REF/ISBN: 9781787251199
  • Edition: 1st
  • Status: Current

This publication is focused on UKCS requirements, and as such it refers to the United Kingdom (UK) legislation and regulatory framework. It should enable operating companies to develop and justify a decommissioning programme (DP) for their subsea pipelines on a case-by-case basis.

It covers a broad range of subsea pipeline decommissioning issues, including:

  • description of subsea pipeline systems and processes to inform stakeholders (background);
  • the legislative and regulatory environment for subsea pipeline system decommissioning;
  • decommissioning programme (DP), building on BEIS, HSE and OGA guidance;
  • decommissioning options, including description of the PLUG Screening tool;
  • CA approaches;
  • risk assessment for IPR, and
  • features of subsea infrastructure, including installation methods.

The intended users of this technical publication are:

  • operating company personnel, such as pipeline engineers and technical authorities, and
  • stakeholders in decommissioning outcomes.

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