April 19, 2025

The first cylindrical ultra-deepwater marine drilling oil storage platform combines three functions into one

The world's most advanced cylindrical ultra-deepwater offshore drilling and storage platform was successfully completed today at Nantong COSCO Shipyard Engineering Co., Ltd., a subsidiary of COSCO Shipyard. Named "Sevast" (sound) China's first cylindrical ultra-deepwater offshore drilling and storage platform built for the sixth generation of semi-submersible platforms built by Norwegian Sewang.

According to the reporter at the scene, the drilling oil storage platform is like a giant, 135 meters high, the diameter of the platform reaches 84 meters, equivalent to the size of four basketball courts. It is known that it has the ability to drill, store oil and pre-treat. It is also the only platform in the world with three functions. When the platform is pre-treated, it can be dehydrated and delimed, which not only improves the added value of the business. It is also taken from the water and mud, and it is very environmentally friendly.

The project has created many world firsts, and the birth of the platform is of great significance. According to Mr. Wei Jiafu, the president of COSCO Group, the cylindrical drilling platform of 3,000 meters deep and 12,000 meters deep was built for Norwegian Sewang today. It marks that COSCO Group is a Fortune 500 company. Ability to enter the world's high-end marine construction platform. More importantly, it is a solid step taken by COSCO as a central enterprise to implement the Party Central Committee's efforts to build an innovative country in 2020. The construction of this platform has many world firsts. The 3,000-meter water depth is a large, large cylindrical drilling platform that is subject to severe weather changes in the storm. The fixed position is very difficult. It has no legs, 3,000 meters of water depth, and can't be used as a leg. The signal from the DP3 satellite locator drives the underlying pusher to make the platform permanently fixed in the design position, ensuring that the pipeline of the drilling does not deviate, and also marks that the field of manufacturing of the Chinese shipbuilding industry has occupied The high end of the world's leading deep sea drilling platform. Since then, the field of high-end marine manufacturing, which has been used by Western developed countries, has emerged as a major measure for our central enterprises to implement the Party Central Committee and the State Council to build an innovative country and build an innovative enterprise.

It is understood that this platform is not only a model of high-tech, but also a model of independent innovation and independent design in China. Before the global shipbuilding industry was not very prosperous, how the COSCO Group got big orders and what kind of reference for the future of China's shipbuilding industry, President Wei Jiafu said: "A few years ago we realized that the world shipping is a cyclical Shipping, how to ensure that we change from cyclical influence to sustainable development, and implement the scientific development concept proposed by General Secretary Hu, we must seek those counter-cyclical and non-cyclical projects. The shipbuilding industry, which is accompanied by international trade. The international economy has obvious cyclicality, so we have entered the field of marine engineering and obtained the world's top deep-sea drilling platform. It marks that we have chosen the right path in the process of learning and practicing the scientific development concept. As a Fortune 500 company in the world, regardless of the wind and waves, we are full of hope for the future."

Vacuum Forming Plastic

Vacuum-formed plastic is used to produce a variety of custom design parts.Vacuum forming become to be a popular and cost-effective solution for a wide range of plastic forming needs.


The product's application must be taken into consideration while selecting the material. Normal vacuum forming plastic included:Polyester, HDPE, LDPE, PVC,PETG,polypropylene, polystyrene, ABS, acrylics, polycarbonate, ASA as well as other ABS capped acrylic and ABS capped polycarbonate.


ABS plastic also named Acrylonitrile Butadiene Styrene,is the most widely used in vacuum forming and available in a range of textured, smooth and embossed finishes, offered in virgin, recycled,UV resistant and flame retardant grades(UL94-V0). As good impact resistance ABS usually is vacuum formed for vehicle,equipment,plastic tray and so on industrial.


HIPS plastic also named High Impact Polystyrene ,is most used in Point of Sale (POS), display and signage market due to its visual appearance (colour options, gloss level, texture), the ease with which it can be processed along with its antistatic and electrical conductivity.


HDPE plastic also named High-Density Polyethylene,is widely used in indoor and outdoor applications including bottles, playground equipment packaging and furniture. It is a plastic with high tensile strength, and good chemical and corrosion resistance.And it has properties of recycling,UV stabilised, improved impact resistance.


PP Plastic also named Polypropylene,is similar to PE. But PE is more harder more heat resistant.But PP is more durable.Mostly plastic tray is produced by PP plastic.


PMMA plastic also named acrylic or glass fiber.It has properties of tensile strength, transparency, polishability and UV tolerance but less impact strength.It is available in clear, antiglare, opal, white, and frosted.It is best choice for windows, displays or see-through enclosures.


PETG named Polyethylene Terephthalate Glycol is another clear rigid plastic sheet.PETG is easily vacuum formed, printed, bonded and polished. As its' excellent clarity and impact resistance, it is widely used in outdoor application.


PC named polycarbonate, has combined advantage of PMMA and ABS. Usually is transparency and semi- transparency. It is expensive but that is best choice for clear plastic vacuum forming.



ASA is one new material which has all good properties of ABS. But much good UV resistant for outdoor usage. It usually be used for radome,air conditioning housing etc outdoor products.



Meanwhile, ABS capped acylic combined the good properties of ABS and acylic. ABS capped polycarbonate combined the good properties of ABS and polycarbonate.If you need high glossy surface for your design,then this is your only choice.










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