Localization of underwater valves in China

A few days ago, the Zhanjiang branch of China's oil and Sea Oil Co., Ltd. (hereinafter referred to as the limited Zhanjiang) came to the news, the Wenchang gas field group development project in the South China Sea, 2 domestic underwater ball valves have recently come out of the factory and passed the acceptance. At this point, China's underwater valves successfully realized localization, breaking the monopoly of foreign technology, purchasing prices fell by more than 40%, greatly reducing the delivery period.
The core equipment of the system. The 60 generation of underwater production system developed in the last century can be combined with floating production platforms and other facilities to form different offshore oilfield development models. Compared with the construction of expensive offshore oil production platforms, the system can greatly reduce the cost of investment, and is less affected by natural disasters, and is very suitable for the development of deep water and marginal oil and gas fields.
Compared with land valves, underwater valves have the characteristics of external water pressure, ROV (underwater robot) or hydraulic drive, higher requirements for sealing and corrosion resistance. The technology and market have always been in the hands of a few foreign valve companies and are still in the R & D stage at home.