KHIA headerKnow-How in Action

VOL XXVI, NO 78

Belzona® Superwrap Water/Condensate Pipe Repair

 
 

Industry:

Oil & Gas (OILG)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Major Oil Producer, North Sea, Norway

 
 

Application Date:

October 2011

 
 

Application Situation:

A six inch diameter pipe, carrying water and condensate, operating at 30-50°C and 31 Bar pressure.

 
 

Problem:

An area of the pipe system had lost 2/3 of its original wall thickness due to internal corrosion. The affected area was expected to go through-wall within the next 2-3 years. The client needed a compliant repair designed for a minimum of 5 years.

 
 

Products:

Belzona® SuperWrap

 

Substrate:

Carbon Steel

 
 

Application Method:

A Belzona® SuperWrap reinforced repair, compliant to ISO/TS24817 and ASME PCC-2 Article 4 was designed and applied by validated applicators.

 
 

Belzona Facts:

Large parts of the system were planned to be removed by the end of 2011 due to these defects. Using Belzona® SuperWrap, the client was able to significantly extend the lifetime of the system without the need for hot work. The repair was completed within twelve hours and after a 48 hours cure period the system was back in service. The Belzona® Superwrap was designed so that integrity in the system was maintained even after the defect goes through-wall. The Belzona® SuperWrap repair is compliant untill 2016.

 
 

Photographs Description

  1. Grit blasted pipe prior to repair
  2. Reinforcement spirals applied (9 in total)
  3. Finnished Application (Thickness 33mm, Length 540mm)
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 

 

 
 
For more information about Belzona visit: www.belzona.com