On December 30, 2019, the ST-246 Saturation Diving Support Vessel, named “ORIENTAL DRAGON”, was successfully delivered in Guangzhou. Built by CSSC Huangpu Wenchong Shipbuilding Co., Ltd. (hereinafter referred to as “CSSC”), the vessel is now the most advanced saturated diving support vessel in China, and one of the most capable in the world.
“ORIENTAL DRAGON” is the first vessel in China to be equipped with the world’s most advanced fixed 24-person twin-bell saturation diving system, enabling support for up to 24 divers at depths of 300 meters. This technology places the vessel at the forefront of deep-water operations globally, marking a significant breakthrough for China in the field of large-depth saturated diving and offshore equipment. The vessel’s delivery underscores China’s achievement in advancing deep-water engineering capabilities to an international level.
Key Features and Capabilities
“ORIENTAL DRAGON” is a specialized deep-water ocean engineering vessel. Key components include a diving bell, high-pressure residence chamber, transition chamber, life support system, and diving bell redraft system, all working in tandem to ensure safe and efficient operations. The vessel has received classes certifications from DNV GL and CCS and integrates a wide range of operational capabilities:
With these capabilities, “ORIENTAL DRAGON” is designed to meet diverse operational needs, making it a versatile tool for underwater engineering, marine resource development, rescue operations, scientific research, and more.
Specifications
The vessel also features a wave compensation accuracy of ±5 cm and is equipped with an anti-roll system for improved safety and comfort. These advanced features make the vessel suitable for use in various sectors, including military operations, marine resources development, rescue and salvage missions, and scientific exploration, offering substantial strategic and economic value.
Technological Advancements and Project Execution
This project marks the first time CSSC Huangpu Wenchong has undertaken the construction of a saturated diving support vessel. To ensure its success, the company formed a dedicated project team and conducted multiple tests for the saturated diving system and other essential equipment. Through this project, CSSC successfully mastered the installation and construction of key technologies, including:
The successful integration of these core technologies ensures the “ORIENTAL DRAGON” is equipped to meet the most demanding offshore and deep-water challenges.
