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Protection device for ocean platform vertical pipe

A technology for protection devices and offshore platforms, 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, damage to the internal structure of flexible pipes, and complex working environment of flexible pipes, etc. Achieving good anti-collision effect, reducing energy exchange and reducing impact

Active Publication Date: 2021-03-09
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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  • Protection device for ocean platform vertical pipe
  • Protection device for ocean platform vertical pipe
  • Protection device for ocean platform vertical pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0040] Through the multi-stage energy consumption of the outer layer protection component 5 and the inner layer protection component 4, the energy exchange between the floating object and the riser 1 is greatly reduced, and it has a good anti-collision effect, and the protection layer 6 adopts a polym...

Embodiment 2

[0042] Such as figure 1 , 2 The shown riser protection device for an offshore platform 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 clearance fit, the The protective device also includes an inner protective component 4 , an outer protective component 5 and a protective layer 6 .

[0043] The inner 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 8 risers 1 in the axial direction, and the fenders 9 are evenly fixed on the inner wall of the buffer ring 8 .

[0044] The outer protection assembly 5 includes a protective sleeve 10 and a buffer structure 11 arranged between the buffer ring 8 and the protective sleeve 10. The protective sleeve 10 is connected to the...

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Abstract

The invention relates to a protection device for an ocean platform vertical pipe. The protection device for the ocean platform vertical pipe comprises a float bowl with a through hole, wherein the vertical pipe is located in the through hole of the float bowl; and the protection device further comprises an inner layer protection assembly, an outer layer protection assembly and a protection layer,wherein the inner layer protection assembly comprises a buffer ring surrounding the periphery of the vertical pipe and fenders arranged between the vertical pipe and the buffer ring; the outer-layer protection assembly comprises a protection cylinder and a buffer structure arranged between the buffer ring and the protection cylinder; and the protective layer wraps the outer wall of the vertical pipe. The protection device has the beneficial effects that the anti-collision capacity of the vertical pipe is improved, damage to the vertical pipe is avoided, and the service life of the vertical pipe is prolonged.

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 sea to deep sea. The steps of offshore oil and gas resource development mainly include: exploration, drilling and completion, production, storage and transportation, and refining. How to move the offshore oil and gas obtained from drilling from the wellhead to the land, such as transporting the oil and gas in the underwater production system or floating production system to the land, is a key issue in the development of offshore oil and gas. [0003] As a key equipment for the exploitation of offshore oil and gas resources, the offshore flexible riser is playing an increasingly important role. Because of its unique composite structure and incomparable...

Claims

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Application Information

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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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