Liwan 3-1 Gas Field

Summary Information

  • Operator: Husky
  • Country: China
  • Location: South China Sea
  • Production start: 2014
  • Partners: CNOOC
  • Type: Gas
  • Estimated Reserves: estimated contingent reserves of between 4 trillion and 6 trillion cubic feet of gas
  • Production Volume: Peak gas sales are expected to rise towards a range of 400 to 500 mmcf/day (gross)


  • Liwan 3-1, is located about 300 kilometres southeast of Hong Kong
  • The project consists of three fields: Liwan 3-1, Liuhua 34-2 and Liuhua 29-1, which share a subsea production system, subsea pipeline transportation and onshore gas processing infrastructure
  • Husky and CNOOC have signed an agreement specifying the key principles of cooperation for funding and operation of Liwan 3-1.
    • Husky will operate the deepwater portion of the Liwan 3-1 field, including development drilling and completions, subsea equipment and controls, and subsea tie-backs to a shallow water platform.
    • CNOOC will operate the shallow water infrastructure, including the platform, subsea pipeline to shore and the onshore gas processing plant
  • With a total length of 260 kilometers, a pipeline will link the Liwan gas platform to China National Offshore Oil Corporation’s (CNOOC) Gaolan gas plant


  • Aker Solutions: FEED Study
  • WorleyParsons: Front end engineering design, estimating and planning for project execution.
  • Saipem: Engineering, procurement, construction and installation of two 22 inch diameter 79-kilometres-long pipelines, umbilicals, along with the transport and installation of a subsea production system linking the wellheads to a processing platform
  • Technip: Installation of 160 kilometers of 30” export oil/gas two-phase pipeline
  • Ocean Dynamics: 3rd Party Verification: Jacket Design and Float-Over Installation
  • CTC: Trenching of approximately 174 kilometres of 30-inch pipeline
  • Bomesc: MEG Module - Engineering, Onshore construction, Vessels Installation, Electrical Equipment Installation & Wiring Connection& Project management
  • Aura: 4x12000kW Heaters


  • 2004 - Liwan 3-1 Gas Field discovered
  • 2006 - Husky makes gas discovery at Liwan 3-1
  • 2009 - WorleyParsons awarded front end engineering design contract
  • 2009 - Liuhua (LH) 34-2 was discovered
  • 2010 - Husky Oil China signed a Heads of Agreement with CNOOC, specifying the key principles of cooperation for funding and operation of the development
  • 2010 - LiuHua (LH) 29-1 discovered
  • 2011 - Husky Energy Sanctions Liwan Gas Project
  • 2012 - CTC awarded trenching contract
  • 2014 - First gas produced



  1. FoundOcean Subsea References
  2. Bomesc Offshore Engineering Topsides Modules References
  3. Aura Oil And Gas Processing References
  4. Aker Solutions Hydrate Inhibition References
  5. Husky, The Liwan Gas Project – Block 29/26
  6. Husky Energy Sanctions Liwan Gas Project
  7. Husky Announces the Signing of Agreement for Liwan 3-1 Field Development
  8. Technip awarded pipeline installation contract in China
  9. New E&C Offshore contracts worth over $1 billion to be executed by the newly-built FDS 2 vessel
  10. WorleyParsons Announces Award of the Liwan 3-1 FEED Contract
  11. Husky Energy Announces Significant Gas Discovery in South China Sea
  12. Liwan 3-1 3rd Party Verification
  13. DeepOcean Group Holding AS wins project for COOEC in South China Sea
  14. CNOOC Ltd. Announces Successful Appraisal Well in Liwan 3-1
  15. CNOOC Ltd. Announces Another Significant Deepwater Gas Discovery in South China Sea
  16. CNOOC Ltd. Announces Third Deepwater Discovery in South China Sea
  17. Husky Energy Delivers Production at the Liwan Gas Project in the South China Sea
  18. Deepocean Completes Works In China On Liwan 3-1 Project

Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License