Bozhong 25-1 25-1S Oil Fields

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Summary Information

  • Operator: CNOOC
  • Country: China
  • Location: Bohai Bay
  • Production start: 2004
  • Partners: Chevron
  • Type: Oil
  • Estimated Reserves:
  • Production Volume:


  • BZ 25-1/BZ 25-1S is located in the east part of Bohai Bay in 20 meters of water, 127km southeast of Longkou City.
  • Major production facilities include a single point mooring system (SPM), a floating production, storage and offloading facility (FPSO), the Hai Yang Shi You 113 FPSO and three wellhead production platforms for the first phase development
  • BZ 26-3 is a satellite field


  • COOEC:
    • Jackets & Modules
    • BZ26-3 WHP -


  • 1992 - The petroleum contract for Block 11/19 in the Bohai Bay was signed
  • 2002 - Agreement signed between CNOOC and ChevronTexaco for field development
  • 2004 - First oil produced
  • 2005 - Platforms C/F start production
  • 2006 - Platform A enters production
  • 2010 - BZ 26-3 starts production



  1. International Protective Coatings Platform References
  2. Jotun Platform References
  3. CNOOC and ChevronTexaco Step Forward to Develop the Large BZ25-1/25-1S Field in Bohai Bay
  4. Oil Begins to Flow at Oil Fields BZ 25-1/BZ 25-1S
  5. Platforms C/F of BZ 25-1/25-1S Commence Production
  6. CNOOC Ltd Announces the Startup of BZ25-1/25-1S Platform A
  7. Two New fields in Bohai Bay Start Production Successfully

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