Penglai 19-3 Offshore Oil Platform (Phases I & II)
Offshore oil platform (Phases I & II) · Bohai Bay, Contract Area 11/05
Penglai 19-3 is China's largest offshore oil field. Its jackets and topsides use Interzinc® 52 zinc-rich epoxy primer, Intergard® 475HS high-build epoxy intermediate and Interthane® 990 polyurethane topcoat, with Chartek® passive fire protection in process fire zones. The case is taken from AkzoNobel's public brochure.
Project overview
Penglai 19-3 is China's largest offshore oil field, in Bohai Bay at an average water depth of about 30 m. Phase I came on stream in 2002; Phase II added five wellhead platforms tied back to a central platform with an associated FPSO. The project is documented in AkzoNobel's brochure.
Corrosion and fire-protection challenges
- The splash and tidal zones alternate wet and dry and are the most severe marine corrosion zones (C5-M / CX);
- Platform structures are designed for a service life beyond 25 years, with extremely limited maintenance windows;
- Topsides contain process fire zones, so anti-corrosion and passive fire protection must be specified zone by zone.
Coating system
| Location | System (manufacturer product) | Notes |
|---|---|---|
| Jackets & topsides | Interzinc® 52 zinc-rich epoxy + Intergard® 475HS high-build epoxy + Interthane® 990 polyurethane topcoat | System as listed in the manufacturer brochure |
| Process fire-zone steelwork | Chartek® passive fire protection (Chartek® 7 in the brochure) | Epoxy intumescent |
| Other functional areas | Interzone® 485 and other manufacturer systems | Selected by zone |
The table reflects the system or system direction stated in the manufacturer's material; specific products and film thicknesses are governed by the project's technical documents.
Sources
AkzoNobel company brochure (p. 5); public engineering information on the Penglai 19-3 field.
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Brand involved
The projects shown are documented in the coating manufacturers' own public material, and the coating work was carried out within the manufacturers' own systems. They are provided purely as a technical reference on coating application and have no supply, application or other connection with RichTech Industrial Technology (Shanghai) Co., Ltd.
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