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Anti-corrosion repairing method for flange on ocean oil platform

A technology for offshore oil and flanges, which is applied in the direction of pipeline anticorrosion/rust protection, damage protection, pipes/pipe joints/fittings, etc. In order to achieve the effect of strong plasticity, good anti-corrosion effect and avoid falling off

Active Publication Date: 2016-03-23
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Abstract
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Problems solved by technology

[0004] The invention provides a method for anti-corrosion repairing of flanges on offshore oil platforms, which solves the problem of the prior art anti-corrosion repair methods, which have higher requirements for flange surface treatment and poor anti-corrosion performance, which is different from flanges. The technical problem that the surface is not firmly bonded or fit tightly, and water vapor is easy to penetrate

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  • Anti-corrosion repairing method for flange on ocean oil platform

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Embodiment Construction

[0039] The embodiment of the present invention provides a method for anti-corrosion repairing of flanges on offshore oil platforms, which solves the problem of anti-corrosion repair methods in the prior art, which have higher requirements for flange surface treatment and poor anti-corrosion performance. The technical problem that the flange surface is not firmly bonded or fit tightly, and water vapor is easy to penetrate.

[0040] The technical solution of the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0041] A method for anti-corrosion repairing of flanges on offshore oil platforms, comprising: surface treatment of the flanges; coating of rusty sealing primers on the flanges; coating of anti-corrosion paste on the flanges; Anti-corrosion petrolatum oil; wrap petrolatum oil anti-corrosion tape on flange; wrap water-cured outer protective tape on flange.

[0042] In order to better understand ...

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Abstract

The invention discloses an anti-corrosion repairing method for a flange on an ocean oil platform. The method comprises the steps that surface treatment is carried out on the flange, the flange is painted with rusty sealed priming paint and is painted with anti-corrosion paste and anti-corrosion mine grease oil, a mine grease oil anti-corrosion belt is wound on the flange, and a water curing outer protection belt is wound on the flange. The method has the beneficial effects of being easy and convenient to construct and operate and good in safety; and the flange obtained after corrosion resistance has the beneficial effects of being long in service life, not prone to damage, good in anti-corrosion effect and the like.

Description

technical field [0001] The invention relates to the technical field of offshore oil exploitation, in particular to a method for anticorrosion repairing of flanges on an offshore oil platform. Background technique [0002] For flanges used on offshore oil platforms, due to the irregularity of the surface, the harshness of the on-site corrosion environment and the difficulty of repair, it is required that the anti-corrosion repair materials should have good adaptability to on-site construction, and the requirements for surface treatment are relatively high. Low, and can be tightly combined with the flange; the anti-corrosion layer should also have good long-term anti-corrosion performance, good aging resistance and chemical corrosion resistance. [0003] At present, polyethylene (or polypropylene) adhesive tape or liquid anti-corrosion paint is mainly used for anti-corrosion repair of offshore oil platform flanges. Its existence requires higher grades of flange surface treatme...

Claims

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Application Information

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IPC IPC(8): F16L58/02F16L58/18
CPCF16L58/02F16L58/187
Inventor 林竹韩文礼郭继银王志涛张新伟张彦军杨耀辉
Owner BC P INC CHINA NAT PETROLEUM CORP
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