Floating platform working in sea area of ice region

A floating platform and platform technology, which can be applied to floating buildings, ships, etc., can solve the problems of repeated collision and friction with sea ice, accelerated mooring loss, etc., to achieve excellent ice resistance performance of floating bodies, reduce construction costs, improve economic effect

Active Publication Date: 2008-09-10
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For sea areas with ice conditions such as the Bohai Sea, the problem with the multi-point mooring method is that if the mooring point of the mooring line on the mooring structure is above the water surface, when the mooring structure

Method used

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  • Floating platform working in sea area of ice region
  • Floating platform working in sea area of ice region
  • Floating platform working in sea area of ice region

Examples

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Embodiment Construction

[0025] Figure 1~ image 3 As shown, the floating platform used in the ice area sea area provided by the present invention includes: an upper deck 1, a platform body 2, a mooring system, and topside facilities 6; wherein,

[0026] The upper deck 1 is located on the platform body 2 and provides the deck space required for platform production operations.

[0027] The upper part of the platform body 2 is an axisymmetric inverted truss-shaped hull 3, which extends downwards from the upper deck 1. The axisymmetric inverted truss-shaped hull 3 can be a rounded truss structure, a chamfered truss structure, or an elliptical truss with an elliptical bottom surface. structure, as shown in Figure 1. Such inverted mesa-shaped structure, on the one hand, can make the waterline surface area of ​​the platform body 2 in contact with water smaller than the upper surface area (deck area) of the platform body 2, which is beneficial to the increase of the deck area on the platform, and can also r...

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PUM

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Abstract

The invention discloses a floating platform used for operation in ice zone. The floating platform comprises an upper-layer deck, a platform body and upside facilities; the platform body comprises a vessel body with an axisymmetric reversed platform-shaped structure; the area of the water plane connected by the platform body and water is caused to be less than the area of the upper surface of the platform body. The vessel body with the axisymmetric reversed platform-shaped structure is a vessel body with a reversed positively round platform-shaped structure, a vessel body with a reversed positively elliptical platform-shaped structure or a vessel body with an axisymmetric reversed prismatic platform-shaped structure. The shape for floating platform which is easy to smash the sea ice leads the floating platform to have more excellent anti-ice performance of the floating body. The mooring system of the platform is designed to be that: the warping hawser is extended from the bottom of the vessel body to the seabed; the warping hawser is protected by the vessel body and does not directly suffer the effect of the sea ice so that the use reliability and safety of the mooring anchor chain are effectively improved. Under conditions of severe sea ices, the floating platform is characterized by better safety and reliability and can solve the technical problem that the floating body can not operate in severe sea ice zones for a long time.

Description

technical field [0001] The invention relates to a floating platform for operating in ice areas and sea areas, in particular to a floating platform for operating in ice areas and sea areas with resistance to sea ice. Background technique [0002] At present, my country's shallow water offshore oil and gas development is mainly concentrated in the Bohai Sea. Due to its high latitude, the Bohai Sea region is often accompanied by the appearance of sea ice in winter. Especially in severe cold years, the frozen area can reach 80% of the total area of ​​the Bohai Sea. Fixed platforms such as jackets play an important role in oil and gas exploitation in the Bohai Sea, but their applicability is limited due to their immovability and lack of oil storage capacity. Especially for some marginal oil fields with relatively deep water depth, the application of jacket platform will greatly reduce the economic efficiency of the whole project. [0003] For this reason, the use of floating pl...

Claims

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Application Information

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IPC IPC(8): B63B35/44B63B21/00
Inventor 谢彬范模张威易丛
Owner CHINA NAT OFFSHORE OIL CORP
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