Date: July 2019

Client: Major Operator

Location: Central North Sea

Scope

The pipe deck on the client’s asset had suffered extensive corrosion resulting in severe wall loss and through wall defects. This was the third phase of a 22 bay pipe deck repair. 7 bays measuring 3m x 6m required a repair solution totalling 126m². Multiple through-wall defects and low wall readings were found.

Solution

The bays were grit blasted to a SA2.5 surface profile. For any areas that were through-wall, 6 layers of our DRS Carbon Fibre solution was utilised. This consisted of a 2 layer composite plate – fully cured – bonded directly over the defects followed by a 4 layer wet lay up. For all non through-wall areas, 4 layers were applied. Fully engineered calculations produced by the ICR technical team.

Results & Benefits

The repairs were designed to seal all through wall defects as well as providing an engineered design lifetime of 20 years
The DRS resins provide a rubberised molecule resin which absorbs and dissipates impacts from thoroughfare and use as a landing area
An anti-slip coating was also applied over the completed pipe deck area. Long term corrosion protection
No hot work required
No heavy lifting or steel components