The second phase of the Deep Sea No 1 ultra-deep-water gas field project, the first ultra-deep-water high-pressure gas field independently developed by China, has made key progress.
About 132 kilometers from South China’s Hainan Province, the project adopts the oil and natural gas development mode based on the subsea production system, the shallow water jacket platform, and the deepwater semi-submersible platform remote control system. The project is designed with 12 underwater wells and includes construction of a jacket platform, an underwater production system, five subsea pipelines and four umbilical cables.
The jacket to support the production platform was completed in Shenzhen, South China’s Guangdong Province, and has been shipped to the site.
The jacket platform is currently the most widely-used offshore oil and gas production facility in the world. It acts like a foundation supporting the huge oil and gas production platform above the sea surface.
The jacket of the second phase of the Deep Sea No 1 ultra-deep-water gas field project weighs about 6,605 metric tons and is about 100.8 meters high, equivalent to the weight of over 4,400 small cars and nearly the height of a 36-story residential building.
Once fully operational, the project is expected to increase reserves of the Deep Sea No 1 ultra-deep-water gas field from 100 billion cubic meters to 150 billion cubic meters, and the peak annual output will be increased from 3 billion cubic meters to 4.5 billion cubic meters.
It will continue to provide reliable clean energy for the Hainan Free Trade Port and the Guangdong-Hong Kong-Macao Greater Bay Area, becoming an important gas source to ensure national energy security.
(Executive editor: Xie Yunxiao)
