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Nano sulfate reducing bacteria corrosion preventive coating for gathering and transferring pipeline and manufacturing method thereof

A gathering and transportation pipeline, sulfate technology, applied in the direction of anti-corrosion coatings, polyether coatings, polyamide coatings, etc., can solve the problems of cleaning and sterilization and the difficulty of replacing oil field gathering and transportation systems, shorten the grinding time, prevent flocculation, improve The effect of gloss and smoothness

Active Publication Date: 2008-12-24
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overcome the current practice of frequent cleaning and sterilization and replacement of pipelines, which brings difficulties to the operation of oilfield gathering and transportation systems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021]The manufacturing process of nano-scale anti-sulfate reducing bacteria corrosion coatings for gathering and transportation pipelines: In a stainless steel bucket, first add 1 part by weight of E-06 bisphenol A epoxy resin to 0.47 parts of n-butanol, 0.13 parts xylene and 0.07 parts of diacetone alcohol, heat it, control the temperature at 90°C, disperse and dissolve it, stop heating after it is fully dissolved, and add 0.02 parts of diacetone alcohol in turn after the temperature drops to room temperature Polyether modified polydimethylsiloxane BYK300, 0.05 part of high molecular weight block copolymer (DISPER) BYK183 containing pigment affinity groups, 0.01 part of NEK-R-20 foam breaking polymer polysiloxane , 0.02 parts of polyether siloxane copolymer BYK345, 0.009 parts of polyacrylate, 0.01 parts of high molecular weight polycarboxylic acid (DISPER) BYK101 containing amine derivatives, mixed and stirred at high speed, under the condition of stirring Add 0.015 parts o...

Embodiment 2

[0033] The manufacturing process of the nano anti-sulfate reducing bacteria corrosion coating for the gathering and transportation pipeline: In a stainless steel bucket, first add 1 part by weight of bisphenol A epoxy resin to 0.40 part of n-butanol, 0.10 part of xylene, In the mixed solution of 0.05 parts of diacetone alcohol, heat it, control the temperature at 85 ° C, disperse and dissolve it, stop heating after it is fully dissolved, and add 0.01 parts of polyether modified polyether to it after the temperature drops to room temperature Polydimethylsiloxane BYK300, 0.04 parts of high molecular weight block copolymer (DISPER) BYK183 containing pigment affinity groups, 0.01 parts of NEK-R-20 foam breaking polymer polysiloxane, 0.015 parts of Polyether siloxane copolymer BYK345, 0.008 parts of polyacrylate, 0.008 parts of high molecular weight polycarboxylic acid (DISPER) BYK101 containing amine derivatives, mixed, high-speed stirring, adding 0.01 parts of Metronidazole, 0.01...

Embodiment 3

[0038] The manufacturing process of nano-scale anti-sulfate reducing bacteria corrosion coatings for gathering and transportation pipelines: in a stainless steel bucket, first add 1 part by weight of bisphenol A epoxy resin to 0.48 parts of n-butanol, 0.15 parts of xylene, In the mixed solution of 0.08 parts of diacetone alcohol, heat it, control the temperature at 95°C, disperse and dissolve it, stop heating after it is fully dissolved, and add 0.03 parts of polyether modified solution in turn after the temperature drops to room temperature Polydimethylsiloxane BYK300, 0.05 parts of high molecular weight block copolymer (DISPER) BYK183 containing pigment affinity groups, 0.015 parts of NEK-R-20 foam-breaking polymer polysiloxane (foam-breaking polysiloxane) Siloxane), 0.025 parts of polyether siloxane copolymer BYK345, 0.01 parts of polyacrylate, 0.015 parts of high molecular weight polycarboxylic acid (DISPER) BYK101 containing amine derivatives, mixed and stirred at high spe...

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PUM

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Abstract

Nano sulfate reducing bacteria corrosion resistant paint for a gathering pipeline is applied to the anticorrosion paint for the oil and gas collecting pipeline. The paint comprising an agent A and an agent B is characterized in that: the agent A consists of bisphenol A epoxy resin, normal butyl alcohol, xylene, diacetone alcohol, polyether modified dimethyl polysiloxane, a macromolecular block copolymer containing a pigment compatible group, foam breaking polysiloxane, polyether siloxane copolymer, polyacrylate, macromolecular polyocarboxy acid containing amino derivatives, metronidazole, nano titanium dioxide, nano silicon dioxide, chrome oxide green, talcum powder and scale graphite; and the agent B consists of a polyamide addition compound, normal butyl alcohol and diacetone alcohol. The paint has the advantages of: an isolated layer is coated between a metal surface and sulfate reducing bacteria inside the pipeline, thereby not only improving the corrosion and abrasion resistant performance of the pipeline, but also preventing the sulfate reducing bacteria from adhering to the metal surface and consequently solving the problem of corrosion caused by the sulfate reducing bacteria.

Description

technical field [0001] The invention relates to a nano sulfate-reducing bacteria corrosion-resistant coating for oil and gas gathering and transportation pipelines, the coating of which has good performance of preventing sulfate-reducing bacteria and excellent corrosion resistance, and a manufacturing method thereof. Involved in the field of coatings and piping systems. technical background [0002] As the oilfield development enters the middle and later stages, the water content in the produced fluid increases sharply. Due to the high liquid volume, high salinity, high sand content, and low pH value of the produced water, the number of sulfate-reducing bacteria in oilfield gathering and transportation pipelines is increasing, and the corrosion of sulfate-reducing bacteria is intensified, which greatly shortens the gathering and transportation pipeline. life. Frequent cleaning and sterilization and replacement of pipelines have destroyed the continuous production of oil we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D177/00C09D5/08F16L58/10C09D183/04C09D171/00C09D133/08
Inventor 张彦军解蓓蓓韩文礼张盈盈张丽萍叶松滨张其滨
Owner BC P INC CHINA NAT PETROLEUM CORP
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