Underwater connector is the key technology of domestic design scheme.

The localization of underwater manufacturing equipment is one of the major development strategies in my country's subsea oil and gas exploration and development. The important connection equipment in the underwater production system-the underwater connector, according to the structure and application characteristics of the general technical problems of the connector. In the research and development of the connectors during the “Twelfth Five-Year Plan” period, the key technologies of the design plan for the localization of the connectors were discussed from the four levels , including sealing, clamping, and precise positioning of the operation of the Zhonghe hydraulic press , discussed key sealing technology and key technical problems of clamping.

Summarizes the problems that need to be solved urgently, and derives proposals for solutions, which will play a key guiding role in the next step for the independent research and development of underwater connectors in the "13th Five-Year Plan".

With the exploration and mining of deepwater oil and gas resources by various petrochemical companies, the underwater production system, which is one of the key methods for deepwater oil and gas field development and design, which has been widely used.

The underwater production system includes underwater wellbores, Christmas trees, manifolds, cross-docking, underwater automatic control systems, umbilical cables, and deep-sea pipelines. The end of the submarine connector used for docking is an important connection device for the underwater production system. It can complete the cross docking and connection with the manifold, Christmas tree, pipeline terminal equipment (PLET) and other equipment.

Therefore, the deep-water underwater connector is one of the key and important weapons and equipment for the development and design of deep-water oil and gas resources.

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