CN113563856A - Pipeline corrosion prevention and inhibition bactericide, preparation method and application thereof - Google Patents

Pipeline corrosion prevention and inhibition bactericide, preparation method and application thereof Download PDF

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Publication number
CN113563856A
CN113563856A CN202110892032.7A CN202110892032A CN113563856A CN 113563856 A CN113563856 A CN 113563856A CN 202110892032 A CN202110892032 A CN 202110892032A CN 113563856 A CN113563856 A CN 113563856A
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parts
corrosion
pipeline
oligomer
bactericide
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杜林麟
袁用波
马利宝
陆昌盛
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Orient Baolin Technology Development Beijing Co ltd
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Priority to CN202310077366.8A priority patent/CN116004211A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/02—Amines; Quaternary ammonium compounds
    • A01N33/12—Quaternary ammonium compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
    • A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/32—Anticorrosion additives

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  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental Sciences (AREA)
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  • Agronomy & Crop Science (AREA)
  • General Health & Medical Sciences (AREA)
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Abstract

The invention discloses a pipeline anticorrosion corrosion inhibition bactericide, a preparation method and an application thereof, wherein the pipeline anticorrosion corrosion inhibition bactericide comprises the following components in parts by weight: the paint comprises the following components in parts by weight: 17-25 parts of amide oligomer; 20-30 parts of aldehyde; 12-18 parts of imidazoline; 8-18 parts of citric acid; 3-15 parts of urea; 7-12 parts of phenanthroline; 10-17 parts of dodecyl dimethyl benzyl ammonium chloride; 8-17 parts of polytetrafluoroethylene; bacteria are destroyed by combination with amide-based oligomers and aldehydes, CO in shale oil or shale gas2Then binds to imidazoline to reduce corrosion of the imidazoline with the pipelineThe corrosion is avoided, so that the sterilization efficiency is improved, the durability of the sterilization time and the sterilization thoroughness are improved, the falling of the rust is beneficial to reducing the corrosion speed, and the service life of the pipeline is prolonged.

Description

Pipeline corrosion prevention and inhibition bactericide, preparation method and application thereof
Technical Field
The invention belongs to the technical field of pipeline corrosion prevention, and particularly relates to a pipeline corrosion prevention corrosion inhibition bactericide, a preparation method and application thereof.
Background
In the development process of shale gas fields and shale oil fields, bacteria can be brought into a production system due to the fact that water, drilling fluid, fracturing fluid and the like are injected into the ground, wherein the bacteria comprise iron bacteria, saprophytic bacteria and sulfate reducing bacteria; from the production of shale gas fields and shale oil fields at home and abroad, most of the shale gas fields and the shale oil fields are exploded with bacterial corrosion after 1 to 2 years of production, and pipelines begin to be corroded and perforated after 1.5 years of production to fail.
In the face of severe bacterial corrosion of shale gas fields and shale oil fields, bactericides are required to be injected for a long time to kill bacteria, and meanwhile, residual acid and CO exist in output liquid of the shale gas fields and the shale oil fields2And the corrosive media have strong corrosivity on underground pipe columns and ground gathering and transportation, and can cause pipeline corrosion. The spot such as perforation caused by pipeline corrosion brings great influence on production safety and environmental protection, and the prolonging of the service life of the pipeline is very important. At present, the development time of shale gas and shale oil in China is short, a targeted anticorrosion process needs to be established for perforation anticorrosion of pipelines for shale gas and shale oil development, and the existing anticorrosion bactericide cannot be suitable for pipeline anticorrosion in the development process of shale gas and shale oil, so that targeted research needs to be carried out for the problem of pipeline anticorrosion in the development process of shale gas and shale oil, and an anticorrosion corrosion-inhibition bactericide suitable for shale oil fields and shale oil fields is formed.
Disclosure of Invention
The invention provides a pipeline anticorrosion corrosion-inhibition bactericide, aiming at the problem that the existing anticorrosion bactericide cannot be suitable for pipeline anticorrosion in the development and development processes of shale gas and shale oil.
The invention adopts the following technical scheme: a pipeline anticorrosion corrosion inhibition bactericide is mainly prepared from the following raw materials in parts by mass: 17-25 parts of amide oligomer; 20-30 parts of aldehyde; 12-18 parts of imidazoline; 8-18 parts of citric acid; 3-15 parts of urea; 7-12 parts of phenanthroline; 10-17 parts of dodecyl dimethyl benzyl ammonium chloride; 8-17 parts of polytetrafluoroethylene.
Preferably, the amido oligomer is copolymerized mainly from acrylamide, sodium acrylate and an alkyl allyl quaternary ammonium salt.
Preferably, the amido oligomer has a molecular weight Mn of 1200-2000.
Preferably, the aldehyde is one or more of formaldehyde, acetaldehyde, propionaldehyde, and glutaraldehyde.
The invention also discloses a preparation method of the pipeline corrosion prevention and inhibition bactericide, which comprises the following steps:
preparing an amido oligomer;
dissolving citric acid, urea and phenanthroline in a solvent, sealing the solvent in a container with polytetrafluoroethylene, keeping the container at 165-174 ℃ for 2-4 hours, and naturally cooling the container to room temperature to obtain a liquid phase 1;
mixing the amido oligomer, aldehyde, imidazoline and the liquid phase 1, and staying for 10-20 minutes under the ultrasonic condition to obtain the pipeline corrosion-inhibiting bactericide.
Preferably, the amido oligomer is prepared specifically as follows: mixing acrylamide, sodium acrylate and alkyl allyl quaternary ammonium salt, placing the mixture in an oxygen-free environment, reacting at the temperature of 30-60 ℃, granulating after the reaction is finished, and drying to constant weight.
Preferably, the frequency of the ultrasonic wave is 30-40 kHz.
The invention also discloses application of the pipeline corrosion-inhibiting bactericide in exploitation or transportation of shale gas or shale oil.
The invention has the beneficial effects that: CO in shale oil or shale gas2Binding with imidazoline to reduce corrosion of pipeline; the pipeline anticorrosion corrosion-inhibition bactericide provided by the invention has the advantages of good sterilization effect, high sterilization efficiency, long sterilization time and thorough sterilization, and the rust falling is favorable for slowing down the corrosion speed and prolonging the service life of the pipeline.
By using the amido oligomer and the aldehyde, the drug resistance problem caused by using the amido oligomer for a long time alone can be avoided, and the using amount of the aldehyde can be reduced to reduce the cost; the corrosion inhibitor can be used for corrosion prevention of pipelines in shale oil and shale gas transmission, and can also be used for corrosion control and sterilization of pipelines in other types of oil fields and gas fields.
Detailed Description
In order to solve the problem that the existing anticorrosive bactericide cannot be suitable for pipeline corrosion prevention in the development and development processes of shale gas and shale oil, the invention provides a pipeline corrosion prevention corrosion inhibition bactericide which is mainly prepared from the following raw materials in parts by weight: 17-25 parts of amide oligomer; 20-30 parts of aldehyde; 12-18 parts of imidazoline; 8-18 parts of citric acid; 3-15 parts of urea; 7-12 parts of phenanthroline; 10-17 parts of dodecyl dimethyl benzyl ammonium chloride; 8-17 parts of polytetrafluoroethylene. Preferably, the amido oligomer is copolymerized mainly from acrylamide, sodium acrylate and an alkyl allyl quaternary ammonium salt. Preferably, the amido oligomer has a molecular weight Mn of 1200-2000. Preferably, the aldehyde is one or more of formaldehyde, acetaldehyde, propionaldehyde, and glutaraldehyde.
The invention also discloses a preparation method of the pipeline corrosion prevention and inhibition bactericide, which comprises the following steps:
preparing an amido oligomer; the preparation of the amido oligomer comprises the following:
mixing acrylamide, sodium acrylate and alkyl allyl quaternary ammonium salt, placing the mixture in an oxygen-free environment, reacting at the temperature of 30-60 ℃, and after the reaction is finished, granulating and drying the mixture to constant weight;
dissolving citric acid, urea and phenanthroline in a solvent, sealing the solvent in a container with polytetrafluoroethylene, keeping the container at the temperature of 165-174 ℃, and naturally cooling the container to room temperature to obtain a liquid phase 1;
mixing the amido oligomer, aldehyde, imidazoline, quaternary ammonium salt and the liquid phase 1, and staying for 10-20 minutes under the ultrasonic condition to obtain the pipeline corrosion and corrosion inhibition bactericide; the frequency of the ultrasonic wave is 30-40 kHz.
Example 1
The corrosion-resistant and corrosion-inhibiting bactericide for the pipeline is prepared from the following raw materials in mass:
170 g of amido oligomer; 200 g of aldehyde; imidazoline 120 g; 80 g of citric acid; 30 g of urea; 70 g of phenanthroline; 100 g of dodecyl dimethyl benzyl ammonium chloride; 80 g of polytetrafluoroethylene;
wherein, the amido oligomer is obtained by copolymerizing 50 g of acrylamide, 60 g of sodium acrylate and 60 g of alkyl allyl quaternary ammonium salt; the aldehyde is glutaraldehyde;
the preparation method of the pipeline anticorrosion corrosion inhibition bactericide of the embodiment comprises the following steps:
s1 preparing amide oligomer;
mixing acrylamide, sodium acrylate and alkyl allyl quaternary ammonium salt, placing the mixture in an oxygen-free environment, reacting at the temperature of 30 ℃, and granulating and drying the mixture to constant weight after the reaction is finished;
s2, dissolving citric acid, urea and phenanthroline in water, sealing the water in a stainless steel autoclave with polytetrafluoroethylene, keeping the temperature at 170 ℃ for 3 hours, and naturally cooling the solution to room temperature to obtain a liquid phase 1;
s3, mixing the amido oligomer, aldehyde, imidazoline and the liquid phase 1, and standing for 10 minutes under the ultrasonic frequency of 30kHz to obtain the pipeline corrosion-inhibiting bactericide.
Example 2
The corrosion-resistant and corrosion-inhibiting bactericide for the pipeline is prepared from the following raw materials in mass:
amide oligomer 200 g; 250 g of aldehyde; imidazoline 160 g; 60 g of citric acid; 80 g of urea; 90 g of phenanthroline; 120 g of dodecyl dimethyl benzyl ammonium chloride; 120 g of polytetrafluoroethylene;
wherein, the amido oligomer is obtained by copolymerizing 80 g of acrylamide, 70 g of sodium acrylate and 50 g of alkyl allyl quaternary ammonium salt; the aldehyde is glutaraldehyde;
the preparation method of the pipeline anticorrosion corrosion inhibition bactericide of the embodiment comprises the following steps:
s1 preparing amide oligomer;
mixing acrylamide, sodium acrylate and alkyl allyl quaternary ammonium salt, placing the mixture in an oxygen-free environment, reacting at the temperature of 45 ℃, and granulating and drying the mixture to constant weight after the reaction is finished;
s2, dissolving citric acid, urea and phenanthroline in water, sealing the water in a stainless steel autoclave with polytetrafluoroethylene, keeping the temperature at 170 ℃ for 3 hours, and naturally cooling the solution to room temperature to obtain a liquid phase 1;
s3, mixing the amido oligomer, aldehyde, imidazoline and the liquid phase 1, and staying for 15 minutes under the ultrasonic frequency of 35kHz to obtain the pipeline corrosion-inhibiting bactericide.
Example 3
The corrosion-resistant and corrosion-inhibiting bactericide for the pipeline is prepared from the following raw materials in mass:
250 g of amido oligomer; 300 g of aldehyde; imidazoline 180 g; 180 g of citric acid; 150 g of urea; 120 g of phenanthroline; 170 g of dodecyl dimethyl benzyl ammonium chloride; 170 g of polytetrafluoroethylene;
wherein, the amido oligomer is obtained by copolymerizing 77 g of acrylamide, 87 g of sodium acrylate and 86 g of alkyl allyl quaternary ammonium salt; the aldehyde is a mixture formed by glutaraldehyde;
the preparation method of the pipeline anticorrosion corrosion inhibition bactericide of the embodiment comprises the following steps:
s1 preparing amide oligomer;
mixing acrylamide, sodium acrylate and alkyl allyl quaternary ammonium salt, placing the mixture in an oxygen-free environment, reacting at the temperature of 60 ℃, and granulating and drying the mixture to constant weight after the reaction is finished;
s2, dissolving citric acid, urea and phenanthroline in water, sealing the water in a stainless steel autoclave with polytetrafluoroethylene, keeping the temperature at 170 ℃ for 3 hours, and naturally cooling the solution to room temperature to obtain a liquid phase 1;
s3, mixing the amido oligomer, aldehyde, imidazoline and the liquid phase 1, and staying for 20 minutes under the condition that the ultrasonic frequency is 40kHz to obtain the pipeline corrosion-inhibiting bactericide.
Comparative example 1
The pipeline anticorrosion corrosion-inhibition bactericide of the comparative example is prepared from the following raw materials in parts by mass:
250 g of amido oligomer; 300 g of aldehyde; imidazoline 180 g; wherein, the amido oligomer is obtained by copolymerizing 77 g of acrylamide, 87 g of sodium acrylate and 86 g of alkyl allyl quaternary ammonium salt; the aldehyde is a mixture formed by 70 g of formaldehyde, 80 g of acetaldehyde, 80 g of propionaldehyde and 70 g of glutaraldehyde; the amido oligomer has a molecular weight Mn of 2000;
the preparation method of the pipeline anticorrosion corrosion inhibition bactericide of the comparative example comprises the following steps:
placing acrylamide, sodium acrylate and alkyl allyl quaternary ammonium salt in a nitrogen environment, reacting for 10 hours in a water bath at 60 ℃, granulating after the reaction is finished, and drying to constant weight to obtain an amide oligomer; the prepared amido oligomer, a mixture of formaldehyde, acetaldehyde, propionaldehyde and glutaraldehyde and imidazoline were mixed and left in an ultrasonic environment with a frequency of 40kHz for 10 minutes.
Experimental example 1
Preparing a corresponding culture medium according to SY/T0532-plus 2012 standard of the bacteria analysis method for the injected water in the oil and gas field, and measuring the content of sulfate reducing bacteria in the water sample to be 5.1 multiplied by 10 by counting by the absolute dilution method3The number of saprophytic bacteria per mL is 1.8 multiplied by 103The number of iron bacteria per mL is 0.7X 103Number of bacteria per mL is 7.6X 103one/mL.
The pipeline anticorrosion corrosion inhibition bactericide of examples 1-3 and the bactericide obtained in comparative example 1 were respectively injected into a water sample at room temperature for 4 hours. And (4) injecting the sterilized water sample and the blank sample into a test bottle, standing for 7 days at room temperature, and testing the number of bacteria in the water sample. The results of the bacterial tests are shown in table 1:
TABLE 1
Figure BDA0003196526250000071
Experimental example 2
The pipeline anticorrosion corrosion inhibition bactericide of examples 1-3 and the bactericide obtained in comparative example 1 are subjected to corrosion tests at normal temperature and normal pressure by using a 20# steel sample, the test water is a water sample of produced water of a shale gas field in Sichuan, the results of example 1 are shown in Table 2, the results of example 2 are shown in Table 3, the results of example 3 are shown in Table 4, and the results of comparative example 1 are shown in Table 5:
TABLE 2
Figure BDA0003196526250000072
TABLE 3
Figure BDA0003196526250000073
Figure BDA0003196526250000081
TABLE 4
Figure BDA0003196526250000082
TABLE 5
Figure BDA0003196526250000083
Figure BDA0003196526250000091
As can be seen from tables 1-5, the pipeline corrosion prevention and inhibition bactericide disclosed by the invention comprises the following components in parts by weight: 17-25 parts of amide oligomer; 20-30 parts of aldehyde; 12-18 parts of imidazoline; 8-18 parts of citric acid; 3-15 parts of urea; 7-12 parts of phenanthroline; 10-17 parts of dodecyl dimethyl benzyl ammonium chloride; 8-17 parts of polytetrafluoroethylene, the sterilization effect is obviously improved, and various bacteria have obvious effects.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The pipeline corrosion prevention and corrosion inhibition bactericide is characterized by being mainly prepared from the following raw materials in parts by mass:
17-25 parts of amide oligomer; 20-30 parts of aldehyde; 12-18 parts of imidazoline; 8-18 parts of citric acid; 3-15 parts of urea; 7-12 parts of phenanthroline; 10-17 parts of dodecyl dimethyl benzyl ammonium chloride; 8-17 parts of polytetrafluoroethylene.
2. The corrosion inhibiting and killing agent for pipeline corrosion and corrosion according to claim 1, wherein said amide-based oligomer is mainly obtained by copolymerization of acrylamide, sodium acrylate and alkyl allyl quaternary ammonium salt.
3. The corrosion inhibiting and killing agent for pipeline corrosion protection according to claim 1, wherein the amido oligomer has a molecular weight Mn of 1200-2000.
4. The corrosion-inhibiting bactericide for pipeline corrosion protection according to claim 1, wherein said aldehyde is one or more of formaldehyde, acetaldehyde, propionaldehyde and glutaraldehyde.
5. A method for preparing the pipeline corrosion-inhibiting bactericide as claimed in claim 1, which comprises the following steps:
preparing an amido oligomer;
dissolving citric acid, urea and phenanthroline in a solvent, sealing the solvent in a container with polytetrafluoroethylene, keeping the container at 165-174 ℃ for 2-4 hours, and naturally cooling the container to room temperature to obtain a liquid phase 1;
mixing the amido oligomer, aldehyde, imidazoline and the liquid phase 1, and staying for 10-20 minutes under the ultrasonic condition to obtain the pipeline corrosion-inhibiting bactericide.
6. The method according to claim 5, wherein the amide-based oligomer is prepared as follows: mixing acrylamide, sodium acrylate and alkyl allyl quaternary ammonium salt, placing the mixture in an oxygen-free environment, reacting at the temperature of 30-60 ℃, granulating after the reaction is finished, and drying to constant weight.
7. The method according to claim 5 or 6, wherein the ultrasonic wave has a frequency of 30 to 40 kHz.
8. Use of a pipeline corrosion inhibiting biocide as claimed in any one of claims 1 to 4 in shale gas or shale oil recovery or transportation.
CN202110892032.7A 2021-08-04 2021-08-04 Pipeline corrosion prevention and inhibition bactericide, preparation method and application thereof Pending CN113563856A (en)

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BR112013014238A2 (en) * 2010-12-17 2016-09-20 Akzo Nobel Chemicals Int Bv process for treating an underground formation, fluid suitable for use in the process and ammonium salt of formula mx (nh4) yhz-glda or formula mx (nh4) yhz-mgda
CN107760290B (en) * 2017-10-20 2020-10-13 中国石油大学(北京) Sterilization corrosion inhibitor for oil field water treatment system and preparation method and application thereof
CN108184899A (en) * 2017-12-29 2018-06-22 翟琳 A kind of preparation method of oil field fungicide

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CN108641695A (en) * 2018-06-13 2018-10-12 中国石油工程建设有限公司 A kind of shale gas field corrosion-retarding germicide
CN110583650A (en) * 2019-10-12 2019-12-20 重庆科技学院 Bactericide for oil pipeline and preparation method and application thereof

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