China National Offshore Oil Corporation (CNOOC) announced on March 17 that the Caofeidian 6-4 oilfield comprehensive adjustment project and the Wenchang 19-1 oilfield phase II project have been officially put into production.
Both projects integrate intelligent oil and gas field design, upgrading key aspects such as crude oil production, equipment maintenance and safety management to enhance development efficiency.
The Caofeidian project is located in the western Bohai Sea, with an average water depth of approximately 20 meters. Once operational, the project will serve as a high-yield, low-carbon offshore oilfield with an annual crude oil output of 1.3 million tons. This contributes significantly to strengthening China’s high-quality energy supply and accelerating the development of new marine energy production capacity.
The project is a key component of Bohai Oilfield’s plan to achieve an annual oil and gas production of 40 million tons by 2025, further solidifying its status as China’s largest crude oil production base. The project involves constructing a large central processing platform and plans to drill 25 development wells. It is expected to reach a peak production of approximately 11,000 barrels of oil equivalent per day by 2026, producing light crude oil. In alignment with China’s “dual carbon” strategy, the project reinjects associated gas into the reservoir through gas compression, reducing carbon dioxide emissions by approximately 13,000 tons.
With the commissioning of CNOOC Zhanjiang branch’s Wenchang 19-1DPPA platform, the Wenchang 19-1 oilfield phase II project has been fully launched. The project is expected to reach a peak production of approximately 12,000 barrels of oil equivalent per day by 2027, producing medium crude oil.
Located in the western Pearl River Mouth Basin, the project has an average water depth of approximately 125 meters. It involves constructing a new drilling and production platform, with plans to drill 13 development wells. The Wenchang 19-1DPPA platform integrates production, drilling and living facilities, standing 187 meters tall. Designed and built domestically, the platform is equipped with an intelligent production and maintenance system, a digital twin system for electrical equipment and corrosion monitoring technology. These advanced features enable the digitalization of crude oil production, equipment maintenance and safety management.
The digital twin system consolidates real-time monitoring data from all electrical equipment, offering comprehensive, three-dimensional insights into operational status and enabling full lifecycle management. Additionally, the platform features a megawatt-level high-temperature exhaust heat power generation system for offshore oil and gas fields, with an estimated annual power output of 24 million kilowatt-hours, reducing carbon dioxide emissions by approximately 23,000 tons per year.
(Executive editor: Wang Ruoting)
