my country's first self-operated deep-water oil field group put into full production

Recently, China National Offshore Oil Corporation announced that the Liuhua 21-2 oilfield was officially put into operation, marking the full completion and commissioning of China’s first self-operated deep-water oilfield group Liuhua 16-2.
After the ultra-deep water large gas field "Deep Sea No.
1" was put into production, China has made another major achievement in the field of deep water oil and gas development
.

The Liuhua 16-2 oilfield group is about 250 kilometers southeast of Shenzhen, including the three oil fields of Liuhua 16-2, Liuhua 20-2 and Liuhua 21-2, with an average water depth of 412 meters, which is the deepest offshore oil field group in China
.
In the second half of last year, the first two oil fields went into production smoothly, and Liuhua 16-2 became the oil field group with the highest daily output in the South China Sea.
As of the end of July this year, it had produced more than 3.
8 million cubic meters of crude oil

"After full production, the oilfields will produce more than 14,000 cubic meters of crude oil per day, accounting for about one-fifth of China’s total oil and gas production in the eastern South China Sea.
The gasoline consumption of a car in one year

Due to its location in the deep waters of the South China Sea, far offshore and harsh sea conditions, the technical difficulty and complexity of the development of the Liuhua 16-2 oilfield group ranks among the world’s forefront
.
CNOOC has successively overcome many world-class problems such as deep-water drilling, underwater intelligent completion, deep-water flow security, and long-distance electric submersible pump power supply technology, and built the largest underwater production system in Asia

In order to efficiently develop the Liuhua 16-2 oilfield group, CNOOC adopts the "full underwater development model", that is, to extract oil and gas through an underwater production system, and then return to the surface of the "Offshore Oil 119" FPSO (floating production storage and offloading oil).
Device), without the need to build production platforms for conventional oil and gas fields, and has comprehensive technical and economic advantages

The hull of "Haiyang Shiyou 119" is about 256 meters long and 49 meters wide.
The deck area is equivalent to two standard football fields.
The deck integrates 14 oil and gas production function modules and a living building capable of accommodating 150 workers

"Offshore Oil 119" not only has the single-point mooring system with the deepest water depth, the most complexity and the highest installation accuracy in China, but also the long-term mooring of the FPSO in the deep waters of the South China Sea where typhoons are frequent to ensure the stability of oil and gas production.
It is also equipped with the first set of mooring systems.