Automatic lifting platform with split base and its using method
A self-elevating platform and bottom-sealing technology, which is applied in water conservancy projects, artificial islands, infrastructure engineering, etc., can solve the problems of rising cost of self-elevating platforms, reduce the load of fixed piles, reduce the environmental load, and reduce the scale Effect
Inactive Publication Date: 2009-12-09
中石化石油工程技术服务有限公司 +1
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Problems solved by technology
[0003] The purpose of the present invention is to develop a self-elevating platform suitable for operation in deep sea areas and its use method, and solve the problem that the cost of the existing self-elevating platform increases sharply with the increase of water depth
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[0020] Now combined with the manual figure 1 , 2 , 3, the present invention is further described:
[0021] The split sitting bottom jack-up platform is mainly composed of jack-up main platform, bottom supporting structure, docking guide device and ballast system. The self-elevating main platform includes platform upper box body 1, lifting pile legs 2, solid piles and lifting machinery, drilling and repairing operation facilities, and the bottom support structure includes platform lower box body 3, fixed pile legs 4 and other connecting and fixing rods, docking The guiding device includes winch 5 , associated guide rope 6 , guide wheel 7 , and guide sleeve 8 , and the ballast system includes air compressor unit 9 , associated ballast control air circuit 10 , and sea port 11 . Considering various performances of the platform such as towage, docking, positioning, and dismantling, the platform is divided into two parts with floating performance, which can be docked up and down o...
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The invention relates to a new type of platform—split sitting bottom self-elevating platform and its use method. The platform is composed of a self-elevating main platform, a bottom support structure, a docking guide device, and a ballast system. It is divided into two parts with floating performance. During operation, it can be docked up and down on the sea to form a platform. The self-elevating main platform has basically the same structure as the conventional self-elevating platform, and guide wheels and guide sleeves are installed on each lifting leg; the bottom supporting structure is provided with a box body and fixed legs corresponding to the lifting legs, and The assembly welding is a rigid whole; the docking guide device guides the precise alignment of the lifting leg and the fixed leg through the guide cable, and the ballast system controls the ups and downs of the bottom support structure, and cooperates with the operation to realize the offshore docking and splitting of the platform. The invention can be used for newly-built platforms, and can also be used for deep-water transformation of existing self-elevating platforms.
Description
Technical field: [0001] The invention develops a self-elevating platform suitable for operation in deep sea areas. technical background: [0002] Jack-up platforms are widely used and very expensive devices in offshore drilling. Common jack-up platforms are composed of floating bodies, pile legs, lifting machinery, etc., and the entire platform is designed as a whole. Limited by the platform towing stability, the center of gravity of the platform should not be too high, that is, the lifting legs should not be too long. In this way, in order to adapt to the operation in the deep sea area, the use of longer pile legs can only increase the main scale of the floating body of the platform to ensure the stability of the towing, and correspondingly increase the lifting capacity. And because each pile leg is independent respectively, can not carry out rigid connection, the rigidity and strength requirement of each pile leg is all very high, and the pile leg weight and the deck oper...
Claims
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IPC IPC(8): B63B35/44E02B17/02
Inventor 徐松森张士华田海庆樊敦秋初新杰刘忠彦孙永泰
Owner 中石化石油工程技术服务有限公司