Dalian opened China's flat shipbuilding river

Dalian Shipbuilding Heavy Industry's 400-foot jack-up drilling rig "Ocean Oil 942" built for Chinese oil companies was launched into the water, marking the end of China's history of not being able to build ships on the flat. The flat construction of the "Offshore Oil 942" drilling platform has not only reached the best level of the series of ships in the same period from the bottoming to the launching, but also has the same technical content as the advanced shipyards such as Korea and Singapore.

Sewerage is one of the most critical core technologies for flat shipbuilding. Due to the constraints of basic construction, the Dalian Shipbuilding Heavy Industry Drilling Platform was constructed at a distance of more than 40 meters from the launching position. Before the launching, the platform is kept in a horizontal state and safely towed to the designated position, and the launching scheme is the key to smooth watering. In the process of platform tow, the staff overcomes a series of difficulties such as long slide laying, heavy construction tasks, less staffing, different softness and hardness of the ground, and difficulty in changing the angle and positioning of the slide. Safe drag. In the feasibility of demonstrating the launching scheme, the expert group was also organized to conduct an "interaction" with the construction of the "Economic Engineering Construction Base" for the more scientific and effective formation of product construction and base construction, and finally decided to adopt the most advanced international launching. Way to launch water. The weight is heavy, the volume is large, and the point of stress is the essential difference between the drilling platform and the ship's flat construction. The difficulty of launching water is also large. In addition to the influence of the tide, the launching time can only be selected at night.

According to the weight and volume of the "Ocean Oil 942" jack-up rig itself and the buoyancy and gravity of the water, the expert group has developed a careful launching plan and tackled the difficulties one by one. During this period, the slides were fixed and the slides were fixed. A lot of problems such as control and sliding speed, the whole process of launching water is smooth and smooth, and at the same time, the saving time and the cost of launching water are also greatly reduced compared with foreign countries.

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