KHIA headerKnow-How in Action

VOL XXIII, NO 16

Belzona® Coats Riser In Splash Zone

 
 

Industry:

Oil & Gas (OILG)

 
 

Application:

Ships and Offshore Structures (SOS)

 
 

Customer Location:

Offshore Platform, Thailand

 
 

Application Date:

May 2005

 
 

Application Situation:

Corroded riser pipe

 
 

Problem:

The offshore platform was experiencing severe corrosion and wall thickness loss of the riser pipe due to the splash zone area which may ultimately lead to leaks or rupture of the high pressure pipe.

 
 

Products:

Belzona® 5811 (Immersion Grade)
Belzona® 5831 (ST Barrier)
 

Substrate:

Wet carbon steel

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet SOS-21. Belzona® 5811 was applied to the external paint surface above the splash zone. Belzona® 5831 was applied to the external paint surface in the splash zone area.

 
 

Belzona Facts:

The repair using conventional paint was very difficult as the splash zone is regularly wet from sea waves and very slow curing. The paint will not properly cure if contaminated by little amount of sea water. Belzona system was chosen for its ease of application and specifically for its surface tolerance and ability to cure under wet conditions.

 
 

Photographs Description

  1. Corroded riser pipe
  2. Application of Belzona® 5831
  3. Completed application
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 

 

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