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An offshore platform riser protection device

A technology for protection devices and offshore platforms, which is applied in pipeline protection, lighting devices, components of lighting devices, etc., can solve the problems of damage to the surface layer structure of flexible risers, complex working environment of flexible pipes, and damage to the internal structure of flexible pipes, etc. Achieve the effect of preventing chemical corrosion, reducing impact and small damage

Active Publication Date: 2022-07-15
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the working environment of flexible pipes is extremely complex. In addition to the tension and compression, torsional and bending loads required for the work, it also bears uncertain loads such as waves and ocean currents, as well as the influence of installation and temperature differences.
In addition, the flexible pipe close to the water surface may also bear the impact of crushed ice, floating objects and ships, causing damage to the surface structure of the flexible riser, and then destroying the internal structure of the flexible pipe

Method used

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  • An offshore platform riser protection device
  • An offshore platform riser protection device
  • An offshore platform riser protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like figure 1 , 2 An offshore platform riser protection device shown, comprises a buoy 3 with a through hole 2, and the riser 1 is located in the through hole 2 of the buoy 3; the protection device also includes an inner layer protection component 4, an outer layer protection component 5 and The protective layer 6, the inner layer protection assembly 4 includes a buffer ring 8 surrounding the periphery of the riser 1 and a fender 9 arranged between the riser 1 and the buffer ring 8; The buffer structure 11 between the ring 8 and the protective sleeve 10 ; the protective layer 6 wraps the outer wall of the riser 1 .

[0040] Multi-stage energy consumption is carried out through the provided outer layer protection component 5 and inner layer protection component 4, which greatly reduces the energy exchange between the floating object and the riser 1, and has a good anti-collision effect, and the protection layer 6 adopts a polymer layer. , can effectively prevent the ch...

Embodiment 2

[0042] like figure 1 , 2 An offshore platform riser protection device as shown includes a buoy 3 with a through hole 2, the riser 1 is located in the through hole 2 of the buoy 3, and the through hole 2 in the buoy 3 and the riser 1 are gap-fitted. The protection device further includes an inner protection component 4 , an outer protection component 5 and a protection layer 6 .

[0043] The inner layer protection assembly 4 includes a buffer ring 8 surrounding the periphery of the riser 1 and a fender 9 arranged between the riser 1 and the buffer ring 8. The buffer ring 8 is fixed on the upper surface of the buoy 3, and the fender 9 is along the There are eight vertical pipes 1 arranged in the axial direction, and the fenders 9 are evenly fixed on the inner wall of the buffer ring 8 .

[0044] The outer layer protection assembly 5 includes a protective tube 10 and a buffer structure 11 arranged between the buffer ring 8 and the protective tube 10. The protective tube 10 is c...

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Abstract

The invention relates to an offshore platform riser protection device, comprising a buoy with a through hole, the riser is located in the through hole of the buoy, the protection device further comprises an inner layer protection component, an outer layer protection component and a protective layer, and the inner layer protection component It includes a buffer ring surrounding the periphery of the riser and a fender arranged between the riser and the buffer ring; the outer protection component includes a protection tube and a buffer structure arranged between the buffer ring and the protection tube; the protection layer is wrapped around the riser the outer wall. The invention has beneficial effects such as improving the anti-collision capability of the riser, avoiding the damage of the riser, and improving the service life of the riser.

Description

technical field [0001] The invention relates to a pipeline protection device, in particular to an offshore platform riser protection device, which belongs to the technical field of marine risers. Background technique [0002] At present, the exploration and development of offshore oil and gas resources is shifting from shallow seas to deep seas. The development steps of offshore oil and gas resources mainly include: exploration, drilling and completion, production, storage and transportation, refining and so on. How to transfer the offshore oil and gas obtained by drilling from the wellhead to the land, such as transporting the oil and gas from the underwater production system or the floating production system to the land, is a key issue in the process of offshore oil and gas development. [0003] As the key equipment for the exploitation of offshore oil and gas resources, the marine flexible riser is playing an increasingly important role. Because of its unique composite s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L11/00F16L57/02F16L58/10F16L55/00F16F15/023F16F15/08F16F15/02F17D5/00F21V9/32
CPCF16L11/00F16L57/02F16L58/1054F16L55/00F16F15/0232F16F15/08F16F15/02F17D5/00F21V9/32
Inventor 屠丽华周杰
Owner ZHEJIANG OCEAN UNIV
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