Contour & Snap Wrap Offshore Riser Repair

Contour & Snap Wrap Offshore Riser Repair

Malaysia

PIPE DETAIL

12” diameter with back to back bends
40 bar operating pressure
35°C operating temperature

SUMMARY

Defect Details:

External corrosion with severe pitting up to 60% wall loss.

Riser with localized pitting
Installation of Snap Wrap & Contour

Repair Application:

The riser is cleaned via grit blasting to achieve S.A 2.5. The defects are identified and marked. The defects, which is concentrated at the bends is first repaired with Snap Wrap. These Snap Wraps are in 3” wide strip and are installed ala lobster back for a combined length of 1.8 meters.  Clock Spring Contour is then used to overwrap the whole length of 5 meters. The repair is designed to last for 20 years.

Repair Time:

1.5 days on-site for the complete application with the line remaining in service.

Riser repair: Before and after Contour installation
Riser repair: Before and after Contour installation

There are nearly 3,000 trained Clock Spring installers around the world who are qualified to provide repairs with Clock Spring products. Clock Spring regularly offers training classes for installers and can custom design training for individual company needs.