Bionic micro-nano structure anti-corrosion and scale-inhibiting coating

Abstract

The invention relates to antiseptic and anti-scaling coating of a bionic micro-nano structure. The antiseptic and anti-scaling coating mainly solves the problems that existing anti-scaling coating does not have good durability and cannot tolerate the severe dielectric conditions and technology conditions of oil field three compound combination flooding. The coating comprises A components of 7.5-8.5% of organic silicon resin, 14-16% of epoxy resin, 13-15% of acrylic resin, 13-15% of tetrafluoro resin, 9-11% of copolymer of vinyl chloride and vinyl isobutyl ether, 3.5-4.5% of polyvinyl butyral, 7.5-8.5% of polypropylene glycol diglycidyl ether, 9.5-10.5% of cellulose acetate butyrate liquid, 7-8% of rutile titanium dioxide, 3.5-4.5% of silicon carbide, 5.5-6.5% of glass flake, 0.4-0.6% of antifoaming agent and 0.05-0.1% of accelerator. The coating comprises B components of 4-6% of hydroxyl fluororesin, 2-5% of micron silicon dioxide, 8-10% of nano silica, 0.5-1.5 parts of silane coupling agent, 1-2% of bactericide and 80-85% of diluent. The antiseptic and anti-scaling coating of the bionic micro-nano structure can adapt to the dielectric and technology conditions of three compound combination flooding, and the function of relieving the corroding and scaling phenomena of a three compound combination flooding injection and production system pipeline is achieved.

Description

technical field [0001] The invention relates to an anti-corrosion and anti-scaling coating in the technical field of anti-corrosion of oil and gas field surface engineering, in particular to an anti-corrosion and anti-scaling coating with bionic micro-nano structure. Background technique [0002] As my country's oilfields have successively entered the stage of tertiary oil recovery, the ASP flooding technology using sodium hydroxide, petroleum sulfonate, and polyacrylamide as displacement materials is an important measure to improve oil recovery and increase oil production. ,More and more attention has been paid. However, compared with traditional water flooding, this new oil recovery technology aggravates the corrosion and scaling of the injection-production system pipeline. Taking the second oil production plant of Daqing Oilfield as an example, the scale cleaning frequency of the ASP flooding water-mixed pipeline is 2 to 3 times per year under the premise of adding antisc...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to overcome the problems that existing anti-fouling coatings in the background technology lack good durability and cannot withstand the harsh medium and process conditions of ASP flooding in oil fields, and provide a bionic micro-nano structure anti-corrosion and anti-corrosion coating. dirt paint

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