China National Offshore Oil Corporation (CNOOC) has put into operation the first domestically developed subsea Xmas tree.
CNOOC’s subsea Xmas tree is 3.5 meters long, 3.2 meters wide and 3 meters high, with an overall weight of nearly 22 tons.
It is a piece of equipment used in subsea production systems in the offshore oil industry, can efficiently increase oil output of oilfields. The Xmas tree is able to pump seawater with a maximum pressure of about 17 MPa into the reservoir, to increase the overall oil production.
To remind, CNOOC recently started production from its Suizhong 36-1/Luda 5-2 discovery, located in Liaodong Bay of Bohai Sea.
The project is expected to achieve a peak production of approximately 30,300 barrels of crude oil per day in 2025.
It represents the largest secondary development and adjustment project in offshore China.
