【Ten Years of Rapid Development in Chemical Engineering Equipment】From 2013 to 2023, China successfully developed and installed underwater production protection systems for seabed mud surfaces

Thread Content

Ten years of rapid development in chemical engineering technology – praising the prosperity and strength of modern China. This is just a starting point; more participation will make things even more interesting. HAICHUAN becomes even better with you here. [Ten years of development in chemical engineering equipment] – continuous updates and summaries available; feel free to join the discussions at https://bbs.hcbbs.com/thread-3576046-1-1.html. Enhance quality awareness and promote high-quality development. ----------------------------------------- On August 21st, it was reported that China’s first underwater “protective shield” for offshore oil fields was successfully installed in the W-1 well area of the Jinzhou 25-1 oil field. This innovation will provide a new engineering solution for unlocking oil and gas production potential in the Bohai Sea shipping areas. 　　The “Golden Bell Shield” is an underwater steel cylinder independently developed by China National Offshore Oil Corporation. It is 14.25 meters high, has an outer diameter of 24 meters, and weighs 450 tons. It can serve as a structural support for underwater production systems, including production trees and underwater production manifolds, enclosing these components along with camera devices within it – acting like an impregnable “fortress” that ensures the protection of the underwater production systems from any threats. 　　The offshore installation was primarily carried out using the method of underwater vibration sinking with a vibratory hammer. In simple terms, it involves using a vibrating hammer to apply vertical high-frequency vibrations to the cylinder, thereby weakening or liquefying the soil surrounding the steel cylinder’s walls on the seabed, so that the cylinder can be driven into the ground. 　　The development project for Well Area W-1 in the Jinzhou 25-1 oil field involves the construction, for the first time, of an underwater production system as well as a protective structure beneath the seabed sediment. It is a demonstration project by CNOOC aimed at addressing the challenges associated with developing oil and gas fields in navigation areas, and at ensuring a stable supply of energy for China. 　　Underwater production systems are typically used for deep-sea oil and gas exploration. In the sea area where the W-1 wellfield development project for the Jinzhou 25-1 oil field is located, frequent fishing and navigation activities make it difficult to construct traditional fixed offshore platforms. The \"underwater production system + underwater steel cylinder\" design, which is buried beneath the seabed sediment, makes it possible for China to exploit oil and gas resources in such restricted sea areas.