CNOOC starts two new projects

March 17, 2025
CNOOC Ltd. started production at the Caofeidian 6-4 Oilfield Comprehensive Adjustment and Wenchang 19-1 Oilfield Phase II Projects.
  • Caofeidian 6-4 Oilfield Comprehensive Adjustment Project is expected to reach 11,000 boe/d peak production. 
  • Wenchang 19-1 Oilfield Phase II Project is expected to reach 12,000 boe/d peak production. 

 


CNOOC Ltd. started production at the Caofeidian 6-4 Oilfield Comprehensive Adjustment and Wenchang 19-1 Oilfield Phase II Projects.

Caofeidian 6-4 Oilfield Comprehensive Adjustment Project is in the western part of the Bohai Sea, in about 20 m of water. The main production facility is a new production wellhead platform, which leverages the adjacent existing infrastructure for development. Twenty-five development wells are planned to be put into production, including 22 production wells and 3 water injection wells. The oil is light crude. 

Associated gas of Caofeidian 6-4 Oilfield Comprehensive Adjustment Project is reinjected back into the reservoir with gas injection compressors, which will reduce carbon dioxide (CO2) emissions by about 13,000 tons/year (tpy).

The project is expected to achieve a peak production of about 11,000 boe/d in 2026. 

Wenchang 19-1 Oilfield Phase II Project is in the western part of Pearl River Mouth basin in about 125 m of water. The main production infrastructure is a new drilling and production platform, which also leverages the adjacent existing infrastructure for development. Thirteen development wells are planned to be put into production. Oil is medium crude.

The project uses a megawatt-level high-temperature flue gas ORC power generation unit which is expected to generate up to 24 million kw-hr of electricity, reducing CO2 emissions by about 23,000 tpy, the company said. 

The project is expected to achieve a peak production of about 12,000 boe/d in 2027. 

CNOOC is operator and holds 100% interest in both projects.

About the Author

Alex Procyk | Upstream Editor

Alex Procyk is Upstream Editor at Oil & Gas Journal. He has also served as a principal technical professional at Halliburton and as a completion engineer at ConocoPhillips. He holds a BS in chemistry (1987) from Kent State University and a PhD in chemistry (1992) from Carnegie Mellon University. He is a member of the Society of Petroleum Engineers (SPE).