Preparation method of oil pipeline nano-composite coating

Abstract

The invention relates to a method for preparing metal matrix nano-composite materials through dual-pulse electro-deposition technology, particularly to a preparation method of an oil pipeline metal matrix Ni-W-P-SiC / CeO2-TiO2 nano-composite coating. The metal matrix Ni-W-P-SiC / CeO2-TiO2 nano-composite coating prepared through the method is uniform and flat in surface and high in hardness, corrosion resistance and wearing resistance. The preparation method of the oil pipeline metal matrix Ni-W-P-SiC / CeO2-TiO2 nano-composite coating is simple and easy to control, has the advantages of being lowin environmental pollution, low in production and maintenance costs and the like and can achieve industrial large-scale production.

Description

technical field [0001] The invention relates to a method for preparing a nanocomposite coating for oil pipelines, which belongs to the technology for preparing nanocomposite coatings on the surface of petroleum pipelines. Background technique [0002] In the process of oil and gas field extraction and transportation, corrosion, scaling, waxing, and wear are the four major public hazards, which are always accompanied by the whole process. [0003] Corrosion, fouling, wax deposition and wear of oil pipelines are the main factors that cause short service life of oil pipeline products used in oil fields, high maintenance costs, and affect production and benefits. Corrosion, scaling, wax formation, wear and tearing are frequent and the well shutdown rate is high. To produce more oil and less drilling, the most effective way is to take certain protective measures to effectively reduce the well shutdown rate; for the gathering and transportation pipeline system, the same There are...

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Problems solved by technology

[0003] Corrosion, fouling, wax deposition and wear of oil pipelines are the main factors that cause short service life of oil pipeline products used in oil fields, high maintenance costs, and affect production and benefits. Corrosion, scaling, wax formation, wear and tearing are frequent and the well shutdown rate is high. To produce more oil and less drilling, the most effective way is to take certain protective measures to effectively reduce the well shutdown rate; for the gathering and transportation pipeline system, the same There are problems of corrosion, fouling, waxing, and wear. In order to reduce drag, save energy, realize non-heating conveying, improve conveying efficiency and ensure the quality of conveying medium, effective protection must also be carried out.

[0004] However, all current pipeline products cannot have the properties of anti-corrosion, anti-scaling, anti-wax and anti-wear at the same time. Solving the problems of corrosion, scaling, waxing and wear of oilfield pipelines is a difficult problem in oilfield production, and it is an urgent need for oilfields in my country and even the world. It is of great significance to reduce the cost of oil production and improve economic benefits

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