Antiseptic and anti-scaling coating of bionic micro-nano structure
A micro-nano structure, micro-nano technology, applied in the direction of anti-corrosion coatings, anti-fouling/underwater coatings, polyether coatings, etc., can solve the lack of durability of anti-fouling coatings, unbearable oil field ASP flooding medium conditions and technology Conditions and other issues, to achieve the effect of alleviating the problem of corrosion and scaling, the performance of resistance to ternary media reaches the standard, and the effect of reducing the frequency of cleaning
Active Publication Date: 2015-11-04
PETROCHINA CO LTD +2
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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
Method used
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Embodiment 1
[0014] Embodiment 1: the mass percentages of each component of the biomimetic micro-nano anti-corrosion and anti-scaling coating applied to the strong alkali injection pipeline of ASP flooding are as follows:
[0015] 1. Composition of component A:
[0016] serial number
Raw material name
Proportion (mass percentage%)
1
SP508 silicone resin
8％
2
E12-60 epoxy resin
16％
3
834-65 acrylic resin
13％
4
FEM-801C tetrafluororesin
14％
5
10％
6
SD-3(20-40S) polyvinyl butyral
4.5％
7
EPG217 polypropylene glycol diglycidyl ether
7.5％
8
CAB381-0.5 Cellulose Acetate Butyrate Liquid (20%)
10％
9
7.5％
10
1200 mesh silicon carbide
3.5％
11
325-500 mesh glass flakes
5.5％
12
550 defoamer
0.4％
13
TIN22 Accelerator
0.1％
[0017] 2. Com...
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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...
Claims
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IPC IPC(8): C09D163/00C09D127/18C09D133/00C09D171/03C09D183/04C09D129/04C09D171/00C09D101/12C09D127/12C09D5/08C09D5/16C09D7/12C09D7/00
Inventor 何树全王海秋于志华蔡连庆翟庆英
Owner PETROCHINA CO LTD