One of the largest private independent oil and natural gas producers in Latin America approached Metalock Brasil for the repair of corrosion in an explosive atmosphere in a cargo tank on a Floating Production Storage and Offloading (FPSO) unit, which is stationed in the Campos Basin, in the state of Rio de Janeiro.
The repair was carried out without hot work, using the Sandwich Plate System (SPS), a patented structural composite material comprising two metal plates bonded by an elastomer core.
With SPS, it is possible to restore the performance of the existing structure affected by corrosion. Thus, Metalock Brasil’s objective was to rehabilitate the lower hull plates of the tank, which had corroded areas, through a safe and efficient construction process.
The repair was conducted on-site, inside the tank. Once the application of SPS was completed, the composite panels created by bonding the solid elastomer core to the upper and lower (existing) hull plates restored the hull plate’s strength.
In other words, with the applied SPS, the exposed upper surface of the existing plate was completely enveloped in elastomer core material and will no longer degrade. In addition to preventing future corrosion of the plate, its strength was increased, ensuring long-term integrity.
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