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On July 13, all 24 sets of 2,000-meter international ultra-deepwater suction anchors undertaken by COOEC Zhuhai Deepwater Equipment Manufacturing Base were delivered from Zhuhai, Guangdong, and these suction anchors will be applied to the global giant subsalt ultra-deepwater oilfield - Brazil Mero Phase II Project.

The maximum water depth in the sea area where the equipment is installed is more than 2,000 meters, marking the deepest application of an ultra-deepwater suction anchor project undertaken by China. All 24 sets of suction anchors are undertaken by COOEC Zhuhai Deepwater Equipment Manufacturing Base, including engineering design, material procurement, construction, testing and shipment, with a total structural weight of about 2,674 tons.

The Mero Phase II suction anchors are typical thin-walled large-diameter cylindrical structure with a maximum construction unit height of 21 m, a diameter of 8 m and a wall thickness of 25 mm. The Project pioneered the construction process of horizontal extension and vertical final assembly commissioning of ultra-deepwater suction anchors in China, innovatively adopted final assembly schemes such as "hoisting after rotating cylinders", applied advanced technologies such as 3D scanning measurement and finite element simulation testing on a large scale, and independently developed construction equipment such as "cross-shaped support tooling", which solved many technical problems such as ultra-large diameter accuracy control and ultra-thin wall thickness deformation control, and achieved a quality pass rate of more than 99.9% and an accuracy deviation of no more than 1 mm per meter, with the advanced level in the industry as a whole.