Donghae 1 Gas Field

Related Pages

Korea Oil & Gas Fields

Korea National Oil Corporation Oil & Gas Fields

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Summary Information

  • Operator: Korea National Oil Corporation
  • Country: Korea
  • Location: Sea of Japan
  • Production start:
  • Partners:
  • Type: Gas
  • Estimated Reserves: total proven reserves are around 250 billion cubic feet
  • Production Volume:


  • The Donghae-1 field is located about 30 miles off Korea's southeast coast and includes three satellite subsea wells tied back to a fixed offshore gas-processing platform. The platform is connected via a subsea pipeline to a new onshore receiving terminal on the Korean coast at Ulsan.


  • HHI: EPIC - Platform : 10,100 M/T, Pipeline : 14” X 68 Km, Flowlines : 6” X 4 Km,
  • Fluor/AMEC: Operations, maintenance and production management services
  • Hallin Marine: Remotely-operated vehicle (ROV) support and inspection


  • 1997 - Korea National Oil Corporation discovered the Donghae field
  • 2001 - HHI awarded platform & pipelines contract
  • 2003 - Fluor/AMEC awarded Operations and Maintenance Contract



  1. Hyundai Heavy Industries Platform References
  2. Fluor Joint Venture Awarded Operations and Maintenance Contract For South Korea's First Offshore Gas Development Project
  3. Hallin Marine commences new Korean offshore ROV support

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