Emergency Work
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Case studies


Breaking of a cold water pipe at Ambatovy Nickel plant


Madagascar
Toamasina


Details of the intervention

Further to  the breaking of the cold water pipe at  Ambatovy Nickel plant, the SEANERGY OI team conducted the following steps:

 

  • Cutting, disconnection and lifting the old section (300 m, 330 tons)
  • Launching of the new section, implementation of lift bags
  • Casting of new section and connection to the rest of the pipe despite significant swell conditions through an innovative procedure established by SEANERGY OI.BE (engineering design department)

 



Tools used

  • 8 hookah diving equipment
  • 50 MBU 5 t (soft shell)
  • Tug, Diving Support


Duration

3 months


Number of participants

11 operatives-divers and supervisors + 6 logisticians on shore


Special requirements

Unprecedented operation. Ambatovy significant gains in terms of costs with the introduction of light resources, compared to a conventional solution which would have required substantial marine resources.



Result

Successful operation, deadlines met.