Spares and repairs

A pipeline operator operates a large network of subsea pipelines in the North Sea. They wanted to develop an emergency sparing strategy and a decision process for selecting repair methods. They also wanted to review and modify where necessary their subsea pipeline repair philosophy as contained within their own internal procedures and incorporate emergency sparing.

Jee carried out the work and produced the following:

• A new emergency spares philosophy - which defined the basis upon which the sparing strategy will be developed in detail to allow the review of the pipeline systems and the selection of the emergency spares to be held
• Qualitative risk assessment - to determine those components of the subsea pipeline system most at risk that would require the addition of emergency spares and the rationale behind the quantities selected.  It included a review of possible failure modes in order to decide which spare parts may be needed on each pipeline
• Update of existing internal procedures to include emergency spares
• A new procedure for project managers designed to give guidance to projects in specifying additional quantities to the material take-offs for the purpose of keeping spares for use in an emergency