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Offshore Repair Of A Riser Pipe



Oil & Gas (OILG)



Valves, Pipes and Fittings (VPF)


Customer Location:

Ivory Coast


Application Date:

May 2014


Application Situation:

12" T-pipe on an FPSO.



Cavitation near the flange, erosion between flange and T-section. Surface preparation created through-wall defects because of the thin remaining thickness of the pipe at some points.



Belzona 1121





Application Method:

In this case of emergency, an internal repair has been carries out first with Belzona 1121 in accordance with Belzona Know-How system leaflet VPF-1. Then a plate has been bonded on the through wall defect using the system leaflet VPF-11. To finish the repair, a reinforced wrap has been applied with Belzona 1121 and Belzona 9341. As the customer wanted a compliant repair, a Belzona SuperWrap system was designed and applied atop.


Belzona Facts:

Due to the situation of the pipe and the explosive environment, Belzona products permitted a cold repair and a quick return to service which saved a substantial amount of money.


Photographs Description

  1. Before repair
  2. During internal application
  3. External repair - plate bonding
  4. Finished repair
Case study pic one


 Case study pic two


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 Case study pic four


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