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Peng Lai 19-3 Offshore Oil Platform Project (Phases I & II)
International Project Cases

Peng Lai 19-3 Offshore Oil Platform Project (Phases I & II)

Project locationBohai Bay Block 11/05
Project typeOffshore oil platform (Phases I and II)
Coating brandInternational® (AkzoNobel)
Time2001–2007 (per the manufacturer's publication)
Disclaimer: The cases on this page are practical projects published in the coating brands' official promotional material, and the coatings were applied by the brands' own systems. The content is provided for coating application technical reference only; the cases have no supply, application or other association with RichTech Industrial Technology (Shanghai) Co., Ltd.

Project overview

Penglai 19-3 is China's largest offshore oilfield, located in the Bohai Bay at an average water depth of about 30 m. Phase I was commissioned in 2002; Phase II built five wellhead platforms tied back to a central platform, with a supporting FPSO. The project is included in the AkzoNobel brochure.

Anti-corrosion (fire protection) challenge

  • The splash zone and tidal zone alternate between wet and dry, being the harshest marine corrosion zones (C5-M / CX);
  • The platform design life is over 25 years, with extremely limited maintenance windows;
  • The topside modules include process fire zones, requiring zone-by-zone systems for corrosion protection and passive fire protection.

Coating system

AreaCoating systems (manufacturer products)Note
Jacket and topside modulesInterzinc® 52 epoxy zinc-rich + Intergard® 475HS high-build epoxy + Interthane® 990 polyurethane topcoatSystem per the manufacturer's publication
Steel structures in the process fire zonesChartek® passive fire protection coating (Chartek® 7 per the publication)Epoxy intumescent
Other functional areasInterzone® 485 and other manufacturer systemsSelected by zone

*The table lists the coating systems or system directions recorded in the manufacturer's documentation; specific models and film thicknesses are subject to the project technical documents.

Source

AkzoNobel brochure (page 5); public project information for the Penglai 19-3 oilfield.

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FAQ

Which coating system was used on Peng Lai 19-3 Offshore Oil Platform Project (Phases I & II)?
For Jacket and topside modules the specified system is: Interzinc® 52 epoxy zinc-rich + Intergard® 475HS high-build epoxy + Interthane® 990 polyurethane topcoat.
What was the corrosion protection challenge at Peng Lai 19-3 Offshore Oil Platform Project (Phases I & II)?
The splash zone and tidal zone alternate between wet and dry, being the harshest marine corrosion zones (C5-M / CX);
Can the same system be adapted to a different project?
Yes, in principle, but the specification has to be re-checked against the new exposure category, surface preparation and expected service life. Send us the site conditions and we will confirm whether this system carries over unchanged or needs adjustment.
Where can I find the data sheets for the products in this system?
Each product named in the system above links to its own data sheet page on this site, with the parameters, application data and the manufacturer's TDS.