Contour & Snap Wrap Offshore Riser Repair

Contour & Snap Wrap Offshore Riser Repair


Pipe Details:

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

Defect Details:

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

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 with localised pitting

Installation of Snap Wrap & Contour

Riser repair: Before and after Contour installation

Riser repair: Before and after Contour installation


Clock Spring has offices around the world with our global headquarters in Houston, TX, USA.

Have a question or need more information? Give us a call or fill in the form, and one of our representatives will reach out to you soon.

North America (USA)
621 Lockhaven Drive
Houston, TX 77073
P: +1-281-590-8491
F: +1-281-590-9528
Eastern Europe
M. Konopnickiej Street
No 2a
Bydgoszcz, Poland
P: +48 601 707 946
4A The Causeway
Godmanchester, Cambridgeshire
England PE29 2HA, UK
P: +44-1480-414-703
F: +44-1480-414-705
Middle East
Addax Tower Level 44
Office No. 4409
Al Reem Island
Abu Dhabi, UAE
P: +971 2 447 4288
M: +971 5 66758217
54 Victoria Road
Aberdeen, Scotland
AB11 6FJ
P: +44 7985 396313

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