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Greater Plutonio Pipeline Walking

Subcon > Case Study > Greater Plutonio Pipeline Walking
Client: BP

A wellhead flowline within the Greater Plutonio field experienced substantial walking.  In 2019 BP engaged Subcon to deliever 18 Pipe Clampign Mattresesses (PCMs) which were installed by Oceaneering in early 2020.

Subcon scope

Detailed design and supply of concrete mattresses for axial stabilisation of ML121 Pipeline.

  • 15x PCM (2.75m x 4m x 0.5m, 9.1Te)
  • 15x Log Mattress (2.5m x 5m x 0.6m, 11.8Te)

Prior to fabrication, Subcon completed a full-scale System Integration Test (SIT) at our Australian fabrication yard.

Subcon delievered the project to a very tight schedule over the 2019/20 New Year period.

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