CN102382638A - Application of pyridine compound for preparing acidization corrosion inhibitors - Google Patents
Application of pyridine compound for preparing acidization corrosion inhibitors Download PDFInfo
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- CN102382638A CN102382638A CN2011102788504A CN201110278850A CN102382638A CN 102382638 A CN102382638 A CN 102382638A CN 2011102788504 A CN2011102788504 A CN 2011102788504A CN 201110278850 A CN201110278850 A CN 201110278850A CN 102382638 A CN102382638 A CN 102382638A
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- corrosion inhibitor
- acidification corrosion
- pyridine
- lutidine
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- CUVZLKMEDNAMAX-UHFFFAOYSA-N C(c1c(cccc2)c2cc2c1cccc2)[n+]1ccccc1 Chemical compound C(c1c(cccc2)c2cc2c1cccc2)[n+]1ccccc1 CUVZLKMEDNAMAX-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides application of pyridine compound represented by general formula (I) and used for preparing acidization corrosion inhibitors, wherein an R is hydrogen (H) or methyl, and an n is 1, 2 or 3. The invention further relates to application of composite for preparing the acidization corrosion inhibitors, wherein the composite adopts the pyridine compound as a main active ingredient.
Description
Technical field
The invention belongs to the anticorrosive metal technical field; Relate to a kind of pyridine compounds and their as the application in the acidification corrosion inhibitor; Be specifically related to the application of chlorination N-(9-anthracene methyl) R-pyridine quaternary ammonium salt in the preparation acidification corrosion inhibitor, this chlorination N-(9-anthracene methyl) R-pyridine quaternary ammonium salt can prevent the corrosion of acid solution to hardware and downhole oil tubing string in the oil well acidation construction.
Background technology
Acidifying is one of effective technology measure of well production increment, water injection well stimulation in the Carbonate Reservoir performance history; Its principle is through dissolving and the corrosion of acid solution (hydrochloric acid and mud acid) to tamper in rock cementing matter or formation pore, the crack etc., recovers and improves formation pore and fissured rate of permeation.Hydrochloric acid is a kind of typical non-oxidizing acid, and metal pipe line equipment and downhole oil tubing string are all had stronger corrodibility, and accidents such as impaired, the downhole oil tubing string heavy corrosion of acidizing unit and the oil pipe of threading off on the normal spot have had a strong impact on the ordinary production of crude oil.
Inhibiter is a kind ofly to be present in the environment (medium) with suitable concentration and form, prevents or slow down the mixture of corrosive chemical substance or several kinds of chemical substances.Consumption is few, construction technology is easy owing to having for inhibiter, do not need special optional equipment advantages such as (like electro-chemical protections) to enjoy liking of people.In the acidizing treatment process, rely on exactly in the acid solution and to add acidification corrosion inhibitor and suppress the corrosion of acid solution down-hole string.
Existing inhibiter is under hot conditions, and particularly corrosion mitigating effect obviously weakens under the hot conditions more than 120 ℃, needs badly a kind ofly can in high temperature and strong acid, suppress the corrosive product innovation of acid solution to down-hole string.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point provides a kind of pyridine compounds and their as the application in the acidification corrosion inhibitor, is specifically related to the application of chlorination N-(9-anthracene methyl) R-pyridine quaternary ammonium salt in the preparation acidification corrosion inhibitor.
Another purpose of the present invention provides a kind of compsn with acidifying corrosion inhibition.
The objective of the invention is to realize in the following manner: the application of general formula (I) compound in the preparation acidification corrosion inhibitor;
Formula I
Wherein, R is H or methyl, and n is 1,2 or 3.
The contriver finds through a large amount of experiments; General formula (I) compound is that chlorination N-(9-anthracene methyl) R-pyridine quaternary ammonium salt has an independently electron pair on nitrogen-atoms; According to the inhibiter adsorption theory, be a reactive group because the sub-phenyl ring of big power supply, this nitrogen-atoms are arranged; Through number of ways such as electrostatic adhesion and formation dative bonds, be attracted on the metallic surface.Alkyl group on the ring is a nonpolar group then, and these groups between the molecule might be formed the adsorption layer of a hydrophobic nature through the effect of cohesive force etc.It is equably attached to steel appearance surface, plays the effect that separates corrosive medium and metallic surface, hampers the carrying out of anodic process or cathodic process.Therefore, general formula (I) compound can be in the application in the preparation acidification corrosion inhibitor.Experiment showed, that corrosion has good corrosion inhibition to this acidification corrosion inhibitor to oil pipeline to differing temps hydrochloric acid.
General formula (I) compound can also add the administered of multiple auxiliary material with compsn.The acidification corrosion inhibitor that utilizes described compound to obtain comprises following component:
General formula (I) compound 1～50 weight part, tensio-active agent 1～25 weight part, solvent 30～70 weight parts.
This acidification corrosion inhibitor also comprises propiolic alcohol that is not more than 25 weight parts and the formaldehyde that is not more than 50 weight parts.
The solvent that this acidification corrosion inhibitor adopts is preferably methyl alcohol, ethanol, Virahol or its any mixture, most preferably Virahol.
Described tensio-active agent preferred emulsifier OP-10, polyoxyethylene nonylphenol ether-8, tween 20 or tween-80.
The preparation method of general formula (I) compound may further comprise the steps: 9-chloromethyl anthracene and pyridine or pyridine derivate were reacted 3～6 hours under 130～180 ℃ of conditions of temperature; Wherein, R is H or methyl, and n is 1,2 or 3; Reaction formula is:
The mol ratio preferred 1: 1～1.8 of described 9-chloromethyl anthracene and pyridine or pyridine derivate.The preferred 2-picoline of described pyridine derivate, 4-picoline, 2,3 dimethyl pyridine, 2,4-lutidine, 2; The 5-lutidine, 2,6-lutidine, 3,4-lutidine, 3; The 5-lutidine, 2 or 2,3,5-trimethylpyridine.
When this acidification corrosion inhibitor was used, use temperature was not higher than 160 ℃, in acid solution, added 1%～2% (wt) acidification corrosion inhibitor compsn of acid solution quality, can make erosion rate reach country-level standard.
With prior art beneficial effect more of the present invention: the R-pyridine quaternary ammonium salt is (wherein for the chlorination N-shown in the general formula (I) (9-anthracene methyl); R is H or methyl; N is 1; 2 or 3) in the high temperature concentrated hydrochloric acid, have high inhibition speed, corrosion mitigating effect can make the erosion rate of high temperature concentrated hydrochloric acid medium carbon steel meet country-level standard up to 99.9%.
Embodiment
To combine specific embodiment to specify the present invention below, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as to qualification of the present invention.
Embodiment 1
With pyridine, 9-chloromethyl anthracene, mol ratio 1: 1 was reacted 3 hours down at 160 ℃, made chlorination N-(9-anthracene methyl) pyridine (compound 1) ultimate analysis: C, 78.55; H, 5.27; Cl, 11.59; N, 4.58.
Is 15: 2: 12 with chlorination N-(9-anthracene methyl) pyridine, propiolic alcohol, formaldehyde, OP-10 by mass ratio: 5 add in the Virahol, and Virahol accounts for 66% of total mass, obtains corrosion inhibitor product A after stirring.
Embodiment 2
With 2,4 lutidine, 9-chloromethyl anthracene, mol ratio 1: 1.1 was reacted 5 hours down at 130 ℃, made chlorination N-(9-anthracene methyl) lutidine (compound 2) ultimate analysis: C, 79.15; H, 6.04; Cl, 10.62; N, 4.20.
Is 20: 5: 15 with chlorination N-(9-anthracene methyl) lutidine, propiolic alcohol, formaldehyde, tween 20 by mass ratio: 10 add in the Virahol, and Virahol accounts for 50% of total mass, obtains corrosion inhibitor product B after stirring.
Embodiment 3
With 2,4,6 trimethylpyridines, 9-chloromethyl anthracene, mol ratio 1: 1.5 was reacted 6 hours down at 180 ℃, made chlorination N-(9-anthracene methyl) trimethylpyridine (compound 3) ultimate analysis: C, 79.41; H, 6.37; Cl, 10.19; N, 4.03.
Is 30: 8: 5 with chlorination N-(9-anthracene methyl) trimethylpyridine, propiolic alcohol, formaldehyde, tween-80 by mass ratio: 15 add in the Virahol, and Virahol accounts for 42% of total mass, obtains corrosion inhibitor product C after stirring.
Embodiment 4
With 2,3,5 trimethylpyridines, 9-chloromethyl anthracene, mol ratio 1: 1.8 was reacted 6 hours down at 150 ℃, made chlorination N-(9-anthracene methyl) trimethylpyridine (compound 4) ultimate analysis: C, 79.41; H, 6.37; Cl, 10.19; N, 4.03.
Is to add in ethanol at 50: 20 chlorination N-(9-anthracene methyl) trimethylpyridine, tween-80 by mass ratio, and ethanol accounts for 30% of total mass, obtains corrosion inhibitor product D after stirring.
Test Example:
In order to check corrosion mitigating effect of the present invention, get the foregoing description 1～4 resulting compound and corrosion inhibitor product, according to standard SY-T5405-1996 " acidifying is with inhibiter method for testing performance and evaluation index " its corrosion inhibition rate is measured.Test-results is as shown in table 1:
Table 1
Can find out by last table, corrosion inhibitor product of the present invention under hot conditions, the corrosion inhibition rate three grades of indexs that can both be up to state standards, high temperature acidified corrosion has good corrosion inhibition to inhibiter of the present invention to hydrochloric acid.
More than the technical scheme that the embodiment of the invention provided has been carried out detailed introduction; Used concrete example among this paper the principle and the embodiment of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. the application of general formula (I) compound in the preparation acidification corrosion inhibitor;
Formula I
Wherein, R is H or methyl, and n is 1,2 or 3.
2. acidification corrosion inhibitor that utilizes the described compound of claim 1 to obtain is characterized in that this acidification corrosion inhibitor comprises following component:
General formula (I) compound 1～50 weight part, tensio-active agent 1～25 weight part, solvent 30～70 weight parts.
3. acidification corrosion inhibitor according to claim 2 is characterized in that this acidification corrosion inhibitor also comprises propiolic alcohol that is not more than 25 weight parts and the formaldehyde that is not more than 50 weight parts.
4. acidification corrosion inhibitor according to claim 2 is characterized in that the solvent that this acidification corrosion inhibitor adopts is methyl alcohol, ethanol, Virahol or its any mixture.
5. acidification corrosion inhibitor according to claim 4 is characterized in that the solvent that this acidification corrosion inhibitor adopts is a Virahol.
6. acidification corrosion inhibitor according to claim 2 is characterized in that described tensio-active agent is: emulsifier op-10, polyoxyethylene nonylphenol ether-8, tween 20 or tween-80.
7. application according to claim 1 is characterized in that the preparation method of general formula (I) compound may further comprise the steps: 9-chloromethyl anthracene and pyridine or pyridine derivate were reacted 3～6 hours under 130～180 ℃ of conditions of temperature; Wherein, R is H or methyl, and n is 1,2 or 3; Reaction formula is:
8. preparation method according to claim 7, the mol ratio that it is characterized in that described 9-chloromethyl anthracene and pyridine or pyridine derivate is 1: 1～1.8.
9. preparation method according to claim 7 is characterized in that described pyridine derivate is 2-picoline, 4-picoline, 2,3 dimethyl pyridine, 2; The 4-lutidine, 2,5-lutidine, 2,6-lutidine; 3,4-lutidine, 3,5-lutidine, 2; 4,6-trimethylpyridine or 2,3,5-trimethylpyridine.
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| CN 201110278850 CN102382638B (en) | 2011-09-20 | 2011-09-20 | Application of pyridine compound for preparing acidization corrosion inhibitors |
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| CN 201110278850 CN102382638B (en) | 2011-09-20 | 2011-09-20 | Application of pyridine compound for preparing acidization corrosion inhibitors |
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| CN102382638B CN102382638B (en) | 2013-09-18 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585796A (en) * | 2012-01-13 | 2012-07-18 | 西南石油大学 | Acidizing corrosion inhibitor N-(gamma-methylanthracene) pyridine chloride and preparation method thereof |
| CN102627955A (en) * | 2012-03-29 | 2012-08-08 | 中国石油天然气集团公司 | High-temperature O2/CO2 corrosion inhibitor for coiled tubing and preparation method of agent B of high-temperature O2/CO2 corrosion inhibitor |
| CN103512683A (en) * | 2012-06-27 | 2014-01-15 | 大陆汽车系统公司 | Pressure sensing device with stepped cavity to minimize thermal noise |
| CN103571451A (en) * | 2012-07-26 | 2014-02-12 | 中国石油天然气集团公司 | Acidizing corrosion inhibitor applicable to high temperature of 120 to 140 DEG C, and preparation and application thereof |
| CN104005035A (en) * | 2014-05-08 | 2014-08-27 | 西华师范大学 | Polymer corrosion inhibitor and preparation method thereof |
| CN105694836A (en) * | 2016-01-05 | 2016-06-22 | 南京华洲新材料有限公司 | Diverting acid acidizing corrosion inhibitor and preparation method thereof |
| CN106350056A (en) * | 2016-08-27 | 2017-01-25 | 中国石油集团渤海钻探工程有限公司 | Corrosion inhibitor applicable to crosslinked acid acidification at 120-140 DEG C and preparation method of corrosion inhibitor applicable to crosslinked acid acidification at 120-140 DEG C |
| CN106367057A (en) * | 2016-08-27 | 2017-02-01 | 中国石油集团渤海钻探工程有限公司 | Corrosion inhibitor used for acidizing and resisting to high temperature of 140-160 DEG C and preparation method for inhibitor |
| CN107418547A (en) * | 2017-08-29 | 2017-12-01 | 中国石油集团渤海钻探工程有限公司 | One kind is based on the high-temperature acidification corrosion inhibitor of tribenzyl (2 benzyl) pyridine ammonium chloride |
| CN107523287A (en) * | 2017-08-29 | 2017-12-29 | 中国石油集团渤海钻探工程有限公司 | A kind of combined high temperature acidification corrosion inhibitor based on pyridines quaternary ammonium salt |
| CN108264891A (en) * | 2017-12-29 | 2018-07-10 | 南京华洲新材料有限公司 | A kind of oil-soluble inhibitor and preparation method thereof |
| CN110484922A (en) * | 2018-05-15 | 2019-11-22 | 中国石油天然气股份有限公司 | A kind of gas-liquid two-phase carbon dioxide corrosion inhibitor and preparation method thereof |
Citations (1)
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|---|---|---|---|---|
| CN1973625A (en) * | 2006-12-20 | 2007-06-06 | 东华大学 | Pyridyl quaternary ammonium salt antiseptic and its prepn process |
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- 2011-09-20 CN CN 201110278850 patent/CN102382638B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973625A (en) * | 2006-12-20 | 2007-06-06 | 东华大学 | Pyridyl quaternary ammonium salt antiseptic and its prepn process |
Non-Patent Citations (1)
| Title |
|---|
| RICHARD A. HANN, ET AL: "Inter- and Intra-molecular Quenching of Anthracene Fluorescence by Pyridinium Ion in Solution", 《J. CHEM. SOC., FARADAY TRANS. 2》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585796A (en) * | 2012-01-13 | 2012-07-18 | 西南石油大学 | Acidizing corrosion inhibitor N-(gamma-methylanthracene) pyridine chloride and preparation method thereof |
| CN102627955A (en) * | 2012-03-29 | 2012-08-08 | 中国石油天然气集团公司 | High-temperature O2/CO2 corrosion inhibitor for coiled tubing and preparation method of agent B of high-temperature O2/CO2 corrosion inhibitor |
| CN103512683A (en) * | 2012-06-27 | 2014-01-15 | 大陆汽车系统公司 | Pressure sensing device with stepped cavity to minimize thermal noise |
| CN103571451B (en) * | 2012-07-26 | 2016-02-10 | 中国石油天然气集团公司 | One is applicable to 120 DEG C ~ 140 DEG C high-temperature acidification corrosion inhibitors and Synthesis and applications |
| CN103571451A (en) * | 2012-07-26 | 2014-02-12 | 中国石油天然气集团公司 | Acidizing corrosion inhibitor applicable to high temperature of 120 to 140 DEG C, and preparation and application thereof |
| CN104005035B (en) * | 2014-05-08 | 2016-04-20 | 西华师范大学 | Polymerization inhibiter and preparation method thereof |
| CN104005035A (en) * | 2014-05-08 | 2014-08-27 | 西华师范大学 | Polymer corrosion inhibitor and preparation method thereof |
| CN105694836A (en) * | 2016-01-05 | 2016-06-22 | 南京华洲新材料有限公司 | Diverting acid acidizing corrosion inhibitor and preparation method thereof |
| CN106350056A (en) * | 2016-08-27 | 2017-01-25 | 中国石油集团渤海钻探工程有限公司 | Corrosion inhibitor applicable to crosslinked acid acidification at 120-140 DEG C and preparation method of corrosion inhibitor applicable to crosslinked acid acidification at 120-140 DEG C |
| CN106367057A (en) * | 2016-08-27 | 2017-02-01 | 中国石油集团渤海钻探工程有限公司 | Corrosion inhibitor used for acidizing and resisting to high temperature of 140-160 DEG C and preparation method for inhibitor |
| CN107418547A (en) * | 2017-08-29 | 2017-12-01 | 中国石油集团渤海钻探工程有限公司 | One kind is based on the high-temperature acidification corrosion inhibitor of tribenzyl (2 benzyl) pyridine ammonium chloride |
| CN107523287A (en) * | 2017-08-29 | 2017-12-29 | 中国石油集团渤海钻探工程有限公司 | A kind of combined high temperature acidification corrosion inhibitor based on pyridines quaternary ammonium salt |
| CN108264891A (en) * | 2017-12-29 | 2018-07-10 | 南京华洲新材料有限公司 | A kind of oil-soluble inhibitor and preparation method thereof |
| CN108264891B (en) * | 2017-12-29 | 2020-04-10 | 南京华洲新材料有限公司 | Oil-soluble corrosion inhibitor and preparation method thereof |
| CN110484922A (en) * | 2018-05-15 | 2019-11-22 | 中国石油天然气股份有限公司 | A kind of gas-liquid two-phase carbon dioxide corrosion inhibitor and preparation method thereof |
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| CN102382638B (en) | 2013-09-18 |
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