Corroded and leaking overboard downpipe on offshore platform

CASE STUDY

OFFSHORE DOWNPIPE REPAIR 

Belzona SuperWrap ll Composite Pad Downpipe Repair

Industry: Oil & Gas
Application: Offshore Pipe Repair
Products: Belzona SuperWrap II Composite Pad, Belzona 9381, Belzona 1982, Belzona 1161
Customer Location: : WA, Australia
Application Date: Aug 2024

PROBLEM

A metal patch installed on a 600 NB overboard downpipe of an offshore platform had corroded due to prolonged exposure in the “wet zone” resulting in leakage.

Corroded and leaking overboard downpipe on offshore platform requiring repair
Corroded overboard downpipe on a offshore platform
Corroded and leaking overboard downpipe requiring repair
Prolonged exposure to offshore conditions resulted in leakage of the downpipe

APPLICATION

Due to corrosion of the previously applied steel plate, the repair was carried out using a Belzona SuperWrap II Composite Pad, which offered a non-corrosive solution.
The Composite Pad system is six times lighter than a steel plate making the rope access application significantly easier to complete. Before deployment to the site, two composite pads measuring 1.5 m × 1 m were prefabricated in the applicator’s workshop.Each was constructed with four layers of Belzona 9381 reinforcement sheet and Belzona 1982 SuperWrap II resin, using a section of 600 NB pipe as a former.
The completed composite pads were freighted offshore to the site and cold bonded onto the overboard riser using Belzona 1161 (Super UW-Metal).
Application of Belzona 1982 SuperWrap II resin to Belzona 9381 reinforcement sheets
Application of Belzona 1982 SuperWrap II
resin to Belzona 9381 reinforcement sheets
Belzona 9381 reinforcement sheets being applied to the 600 NB pipe former
Belzona 9381 reinforcement sheets being
applied to the 600 NB pipe former
Completed Belzona SuperWrap II
Composite Pad with abraded underside
Surface preparation using a bristle blaster
Surface preparation using a bristle blaster
Application of Belzona 1161 and Belzona 9341
Application of Belzona 1161 and Belzona
9341 reinforcement tape to cover the hole
Belzona SuperWrap II Composite Pad cold bonded using Belzona 1161
Belzona SuperWrap II Composite Pad cold
bonded using Belzona 1161 and held in
place with straps until the product cures

OUTCOME

The repair will provide a long-term solution, thanks to the exceptional adhesive strength of Belzona 1161 and the corrosion-resistant design of the SuperWrap II Composite Pad system.

More Information?

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Products

Belzona SuperWrap II Composite Pad
Belzona SuperWrap II Composite Pad has been designed as a direct replacement for rolled steel plates, using the SuperWrap II system.

Learn more about Belzona SuperWrap II Composite Pad

Belzona 1161 (Super UW-Metal)
A 2-part composite material for metal repair and resurfacing based on a solvent-free, surface-tolerant epoxy resin reinforced with silicon steel alloy.

Learn more about Belzona 1161 (Super UW-Metal)

About Rezitech

Established in 1968, Rezitech is the sole Australian Distributor for Belzona. Rezitech offers a comprehensive range of industrial protective coatings and epoxy metal repair composites to many different industries including: oil and gas, mining, power, water and waste water, pulp and paper, marine, manufacturing among others.

We value growth and innovation within the maintenance solutions industry

Our Mission

To provide industry with easier maintenance solutions that provide cost effective, efficient and long lasting results for our valued clients. To provide an integrated industry service by striving for Rezitech being a truly complete solutions provider!

Our Values

We value the needs of our clients and place a huge emphasis on providing specialist skills and knowledge.
From engineering to fitting, blasting or coating to sales, administration and customer service, we highly value our organisation and encourage diversity andgrowth to benefit our client and our team of people.

Our Vision

To strive for excellence in our delivery of high quality industrial maintenance solutions. To be our clients’ preferred choice when it comes to solving all of their maintenance and new pump needs while helping to reduce their carbon imprint.

Health and Safety

Rezitech is committed to ensuring the health, safety and welfare of its employees, contractors, visitors and customers who may be affected by Rezitech’s operations. We strive to pursue standards of safety that meet and exceed statutory duties.

Community & Environment

While providing solutions for our clients Rezitech focuses on identifying ways to improve business environmental performance while increasing productivity and reducing costs of production for the benefit our clients and hence the community.

The Future

To continue to strive for excellence! To continue to lead the way in industrial maintenance solutions and services and provide our clientele with high quality, complete and reliable products and services.

Rezitech’s mission is to make its liquid ring vacuum pump expertise available to sugar mills, paper mills and process industries worldwide. We currently export to:

  • Fiji
  • Thailand
  • Mauritius
  • Indonesia
  • United Kingdom
  • Phillipines
  • Malaysia
  • New Zealand
  • Papua New Guinea

We are constantly on the look out for new export opportunities and new countries to export to Rezitech places an emphasis on the development of export business worldwide.

For further information on a Flowtech Distributorship please contact us.

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