A buffer device for offshore platform installation in place

Abstract

The invention discloses a buffer device used for ocean platform in-situ mounting. The buffer device comprises a bottom ring-shaped base plate, a plurality of pieces of buffer rubber, a plurality of radial limiting plates, a top ring-shaped cover plate and a plurality of perpendicular blocking plates, wherein the buffer rubber is uniformly distributed on the bottom ring-shaped base plate, an opening is formed in the vertical direction in the centre of the buffer rubber; the top ring-shaped cover plate is arranged over the buffer rubber; openings are separately formed in opening positions, whichcorrespond to the buffer rubber, of the top ring-shaped cover plate and the bottom ring-shaped base plate; the radial limiting plates are arranged over the bottom ring-shaped base plate for limitingradial deviation of the buffer rubber and the top ring-shaped cover plate; and the perpendicular blocking plates are arranged on the tops of the radial limiting plates and are connected to the radiallimiting plates for limiting the top ring-shaped cover plate from dropping. The buffer device can effectively prevent the problem that a lifting system is automatically locked as a result of relatively great impact borne on the system while an ocean platform is mounted, and improves in-situ self-mounting safety and reliability of a self-lifting type ocean platform.

Description

technical field [0001] The invention relates to a buffer device used for in-situ installation of an ocean platform, which belongs to the field of ocean engineering. Background technique [0002] For the marginal oil fields discovered in domestic shallow waters, due to the low total output of the oil fields and the short economic recoverable life, it is difficult to obtain a satisfactory return on capital if conventional development technologies and equipment are used. In order to obtain better economic benefits, simple jacket platforms or jack-up platforms are usually used for the development of such marginal oil fields. Compared with the simple jacket platform, the self-elevating platform has the advantages of self-installation at sea without the use of large floating cranes, and can be relocated and reused, which can save hundreds of millions of yuan in offshore installation and disposal costs. Therefore, in recent years, most of the marginal oil fields discovered in dome...

AI Technical Summary

Problems solved by technology

[0003] Jack-up platforms usually use a temporary rental lifting system to realize self-installation at sea. However, the lifting system usually used for offshore platform installation in the world is prone to automatic locking during installation due to severe sea conditions and increased impact loads. , so that the platform’s offshore self-installation cannot be carried out smoothly, threatening the platform’s installability

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