KHIA headerKnow-How in Action

VOL XXX, NO 63

Belzona® Superwrap II Ensures The Safety Of An Offshore Platform

 
 

Industry:

Oil & Gas (OILG)

 
 

Application:

Ships and Offshore Structures (SOS)

 
 

Customer Location:

Oil & Gas Industry, Offshore, USA

 
 

Application Date:

May 2015

 
 

Application Situation:

6" diameter riser on an offshore platform.

 
 

Problem:

The integrity of the riser was compromised due to severe damage caused by external corrosion. The asset owner needed to protect the surface of the riser without any interruption to the operation. Hot work was not an option.

 
 

Products:

Belzona 1121 (Super XL-Metal)

Belzona 1982

Belzona 9111 (Cleaner Degreaser)

Belzona 9382

 

Substrate:

Carbon steel

 
 

Application Method:

The substrate was grit blasted to produce a surface cleanliness of SSPC-SP 10 (Near White Metal) with an anchor profile of at least 3 mils (75 microns). The surface was then cleaned and degreased and the condition of the blasted surface was maintained until the application of the repair system. Belzona 1121 was used to fill pitted areas and to restore the original pipe thickness. Belzona 9381 was saturated with Belzona 1982 and applied onto the pipe in 4 wraps (8 layers) in compliance with the engineered design. To consolidate the repair during the curing process, Belzona 9382 was employed. After 24-hour cure, Belzona 9382 was removed. The surface of the cured Superwrap II was washed and sanded, and the pipe was overcoated with Belzona 1121 prior to application of a urethane top coat.

 
 

Belzona Facts:

The application was carried out without any disruption to the operation of the platform. The repair and application of Belzona Superwrap II was completed in less than 7 hours, in addition to the 24 hours for the system to cure.

 
 

Photographs Description

  1. Belzona 1121 applied to fill pitting
  2. Four wraps (8 layers) of Belzona 1982 applied
  3. Belzona 9382 applied to consolidate repair during cure
  4. Complete application - Belzona Superwrap II repair overcoated with Belzona 1121 prior to application of urethane topcoat
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

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