Recently, Panyu Pearl River Steel Pipe (Zhuhai)**, located in Nanshui Town, Jinwan District, successfully trial-produced a world-leading 3,500-meter, ultra-deep submarine pipeline welded steel pipe sample.
Recently, Panyu Pearl River Steel Pipe (Zhuhai) **hereinafter referred to as "Pearl River Steel Pipe") led the "3500-meter ultra-deepwater high-pressure submarine pipeline development and industrialization" project, successfully trial-produced the world's leading 3500-meter ultra-deep submarine pipeline welded steel pipe samples, its research and development results in the industry in the forefront of technology, not only to achieve China's technological breakthrough in this field, but also to successfully break the monopoly, so that "Jinwan made" out of the country, to the world.
It is understood that compared with land, deep-sea pipes should adapt to a lower temperature, higher pressure, and more corrosive working environment. Especially in the 3,500-meter deep sea, there is an ultra-low temperature close to 0 and an ultra-high pressure equivalent to about 350 times the standard atmosphere, which is equivalent to an area the size of a thumb fingernail to bear more than 350 kilograms. Therefore, there are very strict requirements for the strength and toughness, compressive performance, dimensional accuracy and other indicators of deep-sea pipes.
With the support of the provincial special fund for promoting high-quality economic development (marine economic development) for the six major marine industries, the project "Development and Industrialization of 3500-meter Ultra-deepwater High-pressure Submarine Pipeline" led by Zhujiang Steel Pipe Company has solved key technical problems such as steel smelting, rolling and plate forming and welding of deep-sea pipeline steel through the study of steel pipe forming technology, welding technology and testing technology.
In addition to the breakthrough of material technology, the manufacturing technology of longitudinal seam submerged arc welded steel pipe of Pearl River Steel Pipe has made important technological innovations in material forming, welding, anti-corrosion and physical and chemical performance testing, and successfully trial-produced 3500 meters of ultra-deep submarine pipeline welded steel pipe samples, which can meet the engineering and technical requirements of anti-crushing, anti-fatigue and anti-large deformation.
At present, the underwater application of welded steel pipes for deep-sea oil and gas transmission in China is limited to 1,500 meters, and the water depth of 3,500 meters is a blank field. The director of the first-class technology center of Zhujiang Steel Pipe Group said that the welded steel pipe sample of Zhujiang Steel Pipe's 3,500-meter ultra-deep submarine pipeline not only fills the domestic gap, but also is the first time in the world to carry out this research, and the technology is at the leading level in the world.
As an important part of the "5+2+N" modern industrial system in Jinwan District, the layout of the marine economy includes the "7+3+1" industrial park including the equipment manufacturing zone, the yacht industry zone and the Gaolan Port Comprehensive Bonded Zone, and focuses on promoting the development of marine engineering equipment manufacturing industry and yacht manufacturing industry in a sea-land coordinated manner, and takes the development of coastal tourism as an opportunity to extend the marine economic industry chain.
Today, as one of the powerful engines to build a "new Guangdong on the sea", Jinwan's emerging marine industry is helping to run out of blue acceleration. With the help of its location advantages, marine resource advantages, as well as the improvement of the industrial system, and the continuous prominence of industrial radiation capabilities, Jinwan continues to promote the high-quality development of the marine economyIn the continuous promotion of marine development strategy, Jinwan also stimulates new momentum for urban development with high-quality and rich marine elements.
Source**: Zhuhai Jinwan, Guangdong Natural Resources.