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Multi-stage semi-submersible platform

A platform and order technology, applied in the field of multi-order semi-submersible platforms, can solve problems such as difficulty in docking of ships, and achieve the effects of solving difficulties in docking, improving wind resistance, and preventing deformation and damage.

Active Publication Date: 2016-08-17
中国船舶重工集团公司第七〇二研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above existing problems, the applicant has carried out research and improvement to provide a multi-stage semi-submersible platform, which not only solves the problem of difficult docking of ships, but also increases the wind resistance and seakeeping performance of the platform

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Embodiment Construction

[0025] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0026] Such as figure 1 , figure 2 As shown, a multi-stage semi-submersible platform includes an upper platform 2, a lower floating body, and a superstructure 1 arranged on the upper surface of the upper platform 2. Such as Figure 4 As shown, the lower buoy comprises an annular buoy 4, and the cross-connected horizontal buoys 13 and longitudinal buoys 14 are arranged in the annular buoy 4, and both ends of the horizontal buoys 13 and the longitudinal buoys 14 are connected to the inner side of the annular buoy 4. Such as figure 1 , Figure 4 As shown, a plurality of columns 3 arranged at intervals along the circumference are connected between the upper platform 2 and the lower floating body; between at least two columns 3 arranged at intervals, a navigation system for the passage of small yachts is formed on the lower part of the upp...

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Abstract

The invention relates to a multi-order semi-submersible platform which comprises an upper platform body and a lower floating body. The lower floating body comprises an annular float, transverse floats and longitudinal floats which are connected with each other in a crossed mode are arranged in the annular float. The inner sides of the upper platform body extend to the center of a circle so that second berth platforms can be formed. Multiple uprights arranged along the circumference at intervals are connected between the upper platform body and the lower floating body. Boss portions extending outwards are symmetrically arranged on the outer circumference of the upper platform body. First berth platforms are arranged on the boss portions on the upper platform body. According to the multi-order semi-submersible platform, a seawater suction system arranged on the lower floating body is used for effectively ballasting the lower floating body with seawater and discharging the seawater; when a severe sea condition occurs, the draught is increased, the dead weight of the platform is increased, so that the height of the portion exposed out of the sea level is greatly reduced, and the wind resistant capacity in the severe sea condition is greatly improved; the transverse floats and the longitudinal floats are combined and crossed, so that a crossed structure is formed, the crossed structure is connected with the annular float, the lower floating body is formed, and the effective load capacity of the upper platform body is guaranteed.

Description

technical field [0001] The invention relates to an offshore floating platform, in particular to a multi-stage semi-submersible platform. Background technique [0002] The semi-submersible platform is also called column-stabilized platform. It has strong wind and wave resistance, good stability, wide range of water depth and large loading capacity. It is widely used in drilling and mining operations of offshore oil and gas resources. The existing semi-submersible platform is mainly composed of the lower floating body, the middle column and the upper platform. When operating in the deep water area, in order to prevent wave slamming and ensure that the deck of the upper platform is not wet by waves, it is necessary to increase the entire upper platform. The height of the platform has caused the problem that it is difficult for ships to berth due to the high platform height. At the same time, because the arrangement of the ship's side needs to be at a lower place, it cannot mee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B35/44
Inventor 叶永林田超顾学康吴有生颜开吴小峰
Owner 中国船舶重工集团公司第七〇二研究所
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