CN107502333A - A kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base - Google Patents
A kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base Download PDFInfo
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- CN107502333A CN107502333A CN201710757365.2A CN201710757365A CN107502333A CN 107502333 A CN107502333 A CN 107502333A CN 201710757365 A CN201710757365 A CN 201710757365A CN 107502333 A CN107502333 A CN 107502333A
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- QMGAKNGOXSELOG-UHFFFAOYSA-N CC1(C(N(C)NC2)=CC=CC1)N2C(c1ccccc1)N1CCCCC1 Chemical compound CC1(C(N(C)NC2)=CC=CC1)N2C(c1ccccc1)N1CCCCC1 QMGAKNGOXSELOG-UHFFFAOYSA-N 0.000 description 1
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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
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- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
- C07D217/22—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the nitrogen-containing ring
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- C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
- C07D249/16—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms condensed with carbocyclic rings or ring systems
- C07D249/18—Benzotriazoles
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- C07D253/00—Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group C07D251/00
- C07D253/08—Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group C07D251/00 condensed with carbocyclic rings or ring systems
- C07D253/10—Condensed 1,2,4-triazines; Hydrogenated condensed 1,2,4-triazines
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- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
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- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
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Abstract
The invention discloses a kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base to include the corrosion inhibiter host A of 12~20 parts by weight and the corrosion inhibiter host B of 12~20 parts of parts by weight；Wherein, the corrosion inhibiter host A is using phenylpropyl alcohol triazole, benzaldehyde and piperidines reaction generation, the corrosion inhibiter host B has propilolic alcohol, heavy alkylbenzene sulfonate, KI, stannous chloride, paregal O, formic acid, second phthalein aniline, triethanolamine and solvent using 3 aminoquinolines and benzyl chloride reaction generation, additionally compounding；The acidification corrosion inhibitor had good sustained release effect, easily storage transport, good stability, environmental protection, its its corrosion inhibition under the conditions of 160 DEG C maintains more than 3 days, the acidizing treatment quality being effectively improved under the conditions of 160 DEG C, and there is preferable compatibility with conventional acidification of oil field system.
Description
Technical field
The present invention relates to acidification of oil field technical field of construction, more particularly to a kind of quinoline is answered with new Mannich base
Close acidification corrosion inhibitor.
Background technology
In acidification of oil gas well, carried out particularly in high temperature deep well in concentrated hydrochloric acid or a large amount of acid acidifyings, primary task
It is to solve etching problem of the high temperature acidified liquid to oil well casing equipment.In acid cleaning process, especially inorganic acid prepare acid
Washing lotion, it causes a certain degree of corrosion and destruction to hardware and material.In addition, caused hydrogen after metal and acid reaction
Hydrogen embrittlement can be caused to corrode hardware, and can also take substantial amounts of sour gas out of and form acid mist, it is therefore necessary to acidified
Corrosion of metal takes targetedly inhibition measure in journey.High-temperature acidification corrosion inhibitor is mainly used in preventing during high-temperature oil well acidizing treatment
The only corrosion of hydrochloric acid or mud acid solution to hardware or down-hole string, to ensure the implementation of oil well acidation fracturing technology and increasing
Production, the realization of Steady product technique measure.When the oil field high temperature deep well having in the past is using concentrated hydrochloric acid acidifying oil well, due to not preferable
Anti-corrosion, the accidents such as down-hole oil tube dropout often occur.Therefore, in HTHP oil well acidation work progress, exactly lean on
High-temperature acidification corrosion inhibitor is added into acid solution and suppresses corrosion of the acid solution to down-hole string.
With the development of drilling technology and the progress of oil recovery technique, a large amount of deep-wells, input exploitation, acidifying measure amount increases year by year
Add, higher requirement it is also proposed with the performance of corrosion inhibiter to acidifying.Well of the well temperature more than 120 DEG C, acidification corrosion inhibitor performance are big
Width reduces, although part well can realize the purpose of inhibition by way of the well-flushing cooling before acidifying, if acidified
Occur abnormal midway termination of pumping or the well without well-flushing condition in journey, then can not realize.Research and develop for 120-140 DEG C,
Low Damage, high temperature resistant and cheap, the wieldy acidification corrosion inhibitor in scene seems more and more important.According to onsite application situation,
At present there is problems with domestic conventional high-temperature acidification corrosion inhibitor at high temperature：
(1) one pack system or single dose are extremely difficult to preferable effect under high temperature and high pressure environment, it is necessary to study organic inhibitor
Compounding is carried out with metal complex and plays synergistic action effect, develops the compound acidification corrosion inhibitor that performance is more preferable, economical and practical
To reach high-performance and multi-functional purpose；
(2) in recent years, although more on acidifying corrosion inhibitor for oil well research, it is applied to the acidification corrosion inhibitor product of high temperature
Kind is less, and performance is not sufficiently stable.Easy close-burning, layering, dissolution dispersity at high temperature be present in part high-temperature acidification corrosion inhibitor
Bad, the shortcomings that being not sufficiently stable, may cause further to injure to stratum.Therefore, the oil for develop high temperature resistant, working well
Well acidizing corrosion inhibiter, it is the urgent need of oil gas field acid stimulation measure, for the corruption for improving acidizing effect, mitigating equipment and pipeline
Erosion, increase overall economic efficiency have great importance.
The content of the invention
It is an object of the invention to provide one kind to overcome existing inhibition during acidizing treatment under prior art hot conditions
The easy close-burning of agent, dissolution dispersity are bad, quinoline and the compound acidifying inhibition of new Mannich base of the shortcomings that being not sufficiently stable
Agent.
Therefore, technical solution of the present invention is as follows：
A kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base, include the corrosion inhibiter master of 12~15 parts by weight
Agent A, 12~17 parts of parts by weight corrosion inhibiter host B, propilolic alcohol, the heavy alkylbenzene sulfonic acid of 0.5~1 parts by weight of 3~4 parts by weight
Salt, the KI of 0.5~1 parts by weight, the stannous chloride of 1~2 parts by weight, the paregal O of 3~5 parts by weight, 5~7 parts by weight
Formic acid, the second phthalein aniline of 3~7 parts by weight, the triethanolamine of 2~7 parts by weight and the solvent of 40~60 parts by weight.
Wherein, the corrosion inhibiter host A is as follows using phenylpropyl alcohol triazole, benzaldehyde and piperidines reaction generation, its structural formula
Shown in Formula II：
Specifically, the preparation method of the corrosion inhibiter host A is：It is 1 by mol ratio:1.1:1.3 phenylpropyl alcohol triazole, benzene
The absolute ethyl alcohol of three kinds of reaction monomers of formaldehyde and piperidines and 0.9~2.0 times of reaction monomers gross mass is added into reaction bulb, is risen
Temperature is stirred at reflux 20~24h to 120~140 DEG C；Room temperature is subsequently cooled to, distills, obtains crude product；Continue gained crude product
It is added in the absolute ethyl alcohol of 4 times of volumes and is stirred continuously, obtain white depositions precipitation, after staticly settling, removes upper solution
And white depositions are washed with anhydrous second, filtered, dry, final gained white product is corrosion inhibiter host A.
The corrosion inhibiter host B is using 3- aminoquinolines and benzyl chloride reaction generation, and its structural formula is as shown in Formula Il：
Specifically, the preparation method of the corrosion inhibiter host B is：It is 1 by mol ratio:1~1.1 20wt.%HCl and 3-
Aminoquinoline is added into reaction bulb, is warming up to 80~100 DEG C of 0.5~1.5h of stirring reaction, is added dropwise and is rubbed with 20wt.%HCl etc.
The benzyl chloride of your amount and the 3- aminoquinolines of 1~1.1 times of 20wt.%HCl mole, continue 5~6h of reaction, product are down to
Wherein remaining reactant is removed with petroleum ether extraction after room temperature, stratification, the rufous of collection is mixed into liquid layer (upper strata)
The insoluble matter being filtered to remove in solution is carried out, finally filtrate is put into vacuum drying chamber and is dried to obtain red brown solid, is
Corrosion inhibiter host B.
Wherein, heavy alkylbenzene sulfonate and paregal O are the surfactant in formula；The structure of heavy alkylbenzene sulfonate
Formula is：RSO3NA (R=C10~C13)；The structural formula of paregal O：RO-(CH2CH2O)n- H, wherein, R is that carbon number is C16~C18's
Mixed alkanes, n=9~30；
It is preferred that the solvent is the methanol of 10~40 parts by weight and the mixed solution of 10~30 parts by weight polyethylene glycol.Its
In, polyethylene glycol is PEG-400 or PEG600.
The quinoline and dosage of the compound acidification corrosion inhibitor of new Mannich base in acid fluid system be 2.0~
Sustained release performance can be achieved during 4.0wt.%.
The beneficial effect of the quinoline and the compound acidification corrosion inhibitor of new Mannich base includes：
(1) compound acidification corrosion inhibitor of the invention is in 0~20wt.%HCl and mud acid system (12%HCl and 3%HF, body
Fraction) in, N80 steel discs, inhibition speed reaches petroleum industry standard under conditions of 120-160 DEG C《SY/T 5405-1996》In
First class index requirement；
(2) good stability of compound acidification corrosion inhibitor of the invention, its its corrosion inhibition under the conditions of 160 DEG C maintain 3
More than it, or it can stablize in the longer time and play its corrosion inhibition, the acidizing treatment quality being effectively improved under the conditions of 160 DEG C；
(3) compound acidification corrosion inhibitor of the invention easily stores transport, through not putrid and deteriorated in long-time storage and transportation process,
The composite corrosion inhibitor for alloing centralized system standby is distributed to the acidizing treatment measures to reform of multiple wells；
(4) compound acidification corrosion inhibitor of the invention has preferable compatibility with conventional acidification of oil field system, specifically,
The composite corrosion inhibitor can (such as clay stabilizer, ferrous stability, demulsification help row with conventional acid system and acidizing additive
Agent, precipitating inhibitor etc.) preferable compatibility is respectively provided with, precipitation will not be produced, is easy to be compounded with different acid systems,
Use range is wide；
(5) compound acidification corrosion inhibitor no biotoxicity of the invention, being capable of biology under natural environment to environment fanout free region
Degraded, and disclosure satisfy that the requirement of offshore oil acidifying.
Embodiment
With reference to specific embodiment, the present invention is described further, but following embodiments absolutely not to the present invention have appoint
What is limited.
Embodiment 1
A kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base, including 12 parts by weight corrosion inhibiter host A, 12
Parts by weight corrosion inhibiter host B, 0.5 parts by weight sodium heavy alkyl benzene sulfonate, 3.0 parts by weight propilolic alcohols, 0.5 part by weight of potassium iodide, 1.0
Parts by weight stannous chloride, 4.0 parts by weight paregal Os, 5.0 parts by weight formic acid, 34.0 parts by weight Methanol, 23 parts by weight PEG-400,
3.0 parts by weight second phthalein aniline and 2.0 parts by weight triethanolamines.
Treated in use, puddling uniformly be sent into job site use or store after each component is weighed by above-mentioned parts by weight
With.
Embodiment 2
A kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base, including 12 parts by weight corrosion inhibiter host A, 12
Parts by weight corrosion inhibiter host B, 0.5 parts by weight sodium heavy alkyl benzene sulfonate, 3.0 parts by weight propilolic alcohols, 0.5 part by weight of potassium iodide, 1.0
Parts by weight stannous chloride, 4.0 parts by weight paregal Os, 5.0 parts by weight formic acid, 34.0 parts by weight Methanol, 23 parts by weight PEG-400,
3.0 parts by weight second phthalein aniline and 2.0 parts by weight triethanolamines.
Treated in use, puddling uniformly be sent into job site use or store after each component is weighed by above-mentioned parts by weight
With.
Embodiment 3
A kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base, including 12 parts by weight corrosion inhibiter host A, 12
Parts by weight corrosion inhibiter host B, 0.5 parts by weight sodium heavy alkyl benzene sulfonate, 3.0 parts by weight propilolic alcohols, 0.5 part by weight of potassium iodide, 1.0
Parts by weight stannous chloride, 4.0 parts by weight paregal Os, 5.0 parts by weight formic acid, 34.0 parts by weight Methanol, 23 parts by weight PEG-400,
3.0 parts by weight second phthalein aniline and 2.0 parts by weight triethanolamines.
Treated in use, puddling uniformly be sent into job site use or store after each component is weighed by above-mentioned parts by weight
With.
Embodiment 4
A kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base, including 13 parts by weight corrosion inhibiter host A, 15
Parts by weight corrosion inhibiter host B, 1.0 parts by weight sodium heavy alkyl benzene sulfonates, 3.0 parts by weight propilolic alcohols, 1.0 part by weight of potassium iodide, 1.0
Stannous chloride, 5.0 parts by weight paregal Os, 7.0 parts by weight formic acid, 26 parts by weight Methanol, 20 parts by weight PEG-400,4.0 weight
Part second phthalein aniline, 4.0 parts by weight triethanolamines.
Treated in use, puddling uniformly be sent into job site use or store after each component is weighed by above-mentioned parts by weight
With.
Embodiment 5
A kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base, including 15 parts by weight corrosion inhibiter host A, 17
Parts by weight corrosion inhibiter host B, 4.0 parts by weight propilolic alcohols, 1.0 part by weight of potassium iodide, 1.0 parts by weight stannous chlorides, 0.5 parts by weight
Sodium heavy alkyl benzene sulfonate, 3.5 parts by weight paregal Os, 5.0 parts by weight formic acid, 28.0 parts by weight Methanol, 12.0 parts by weight PEG-
400th, 7.0 parts by weight second phthalein aniline and 7.0 parts by weight triethanolamines.
Treated in use, puddling uniformly be sent into job site use or store after each component is weighed by above-mentioned parts by weight
With.
Wherein, in addition to corrosion inhibiter host A and corrosion inhibiter host B is made by laboratory, remaining each component and preparation remove
Corrosion inhibiter host A and corrosion inhibiter host B raw material are bought from commercially available prod.
Specifically, corrosion inhibiter host A preparation method is：0.1mol is added in the three-necked flask equipped with electric mixer
Phenylpropyl alcohol triazole, 0.11mol benzaldehydes and 0.13mol piperidines and 40g absolute ethyl alcohols, are warming up to 130 DEG C, are stirred at reflux 24h；So
After be cooled to room temperature, distill, collect the cut removed in solvent and temperature of charge section, obtain crude product；Continue gained
Crude product is added in the absolute ethyl alcohol of 4 times of volumes and is stirred continuously, and obtains white depositions, and after staticly settling, it is molten to remove upper strata
White depositions are simultaneously washed, filtered by liquid with anhydrous second, are dried, and final gained white product is corrosion inhibiter host A.
Corrosion inhibiter host B preparation method is：In three equipped with reflux condenser, thermometer, electric jacket and agitating device
The 20wt.%HCl and 0.21mol that add 0.2mol in mouth flask 3- aminoquinolines are added into reaction bulb, are warming up to 90 DEG C
Stirring reaction 1h, 0.2mol benzyl chloride and 0.21mol 3- aminoquinolines is added dropwise, continues to react 4h, product is down to room temperature
Extracted afterwards with petroleum ether, stratification, collect the upper strata mixed liquor of the rufous containing product, except sub-cloud is remaining anti-
Answer thing mixed liquor, after be filtered to remove insoluble matter in solution, finally filtrate is put into vacuum drying chamber and is dried to obtain rufous
Solid, as corrosion inhibiter host B.
Performance test：
To above-described embodiment 1~5 prepare compound acidification corrosion inhibitor respectively from corrosion inhibition, etc. test.
(1) corrosion inhibition is tested：
Corrosion mitigating effect of the temperature higher than more than 90 DEG C is evaluated, with reference to People's Republic of China's oil and gas industry standard
SY/T 5405-1996《Corrosion inhibiter method for testing performance and evaluation index are used in acidifying》In HTHP Dynamic Corrosion speed survey
The method of determining is evaluated.The sample prepared is poured into high temperature and high pressure kettle, then the test piece handled well is put into kettle, temperature
When reaching assigned temperature, start timing, reaction is taken out test piece after 4 hours and handled, and calculates average corrosion rate.Test result
It is as shown in table 1 below.
Table 1：
From upper table 1 as can be seen that under the conditions of 120 DEG C, in 15wt.% HCl, 20wt.% HCl and 12wt.%
In HCl+3.0wt.%HF, 2.0% dosage can reach SY/T 5405-1996 one-level performance indications；Under the conditions of 140 DEG C,
In 15wt.%HCl, 20wt.%HCl and 12wt.%HCl+3.0wt.%HF, 2.5wt.% dosage can reach SY/T
5405-1996 one-level performance indications；Under the conditions of 160 DEG C, in 15wt.%HCl, 20wt.%HCl and 12wt.%HCl+
In 3.0wt.%HF, 4wt.% dosage can reach SY/T 5405-1996 one-level performance indications.
In addition, the corrosion inhibition of each embodiment for being related in table 1 is tested.Wherein, 160 DEG C of test temperature, delay are anti-
To 72h between seasonable, after measured, though the corrosion rate in the test result of each embodiment has quickening, in its relevant temperature bar
Inhibition speed is kept to reach one-level performance indications specified in SY/T 5405-1996 under part.It can be seen that the compound acidification corrosion inhibitor
Good stability, its its corrosion inhibition under the conditions of 160 DEG C maintains more than 3 days, or can stablize in the longer time and play it
Corrosion inhibition, the acidizing treatment quality being effectively improved under the conditions of 160 DEG C.
(2) dissolution dispersity can be tested：
According to SY/T 5405-1996《Corrosion inhibiter method for testing performance and evaluation index are used in acidifying》In corrosion inhibiter dissolving
Dispersed assay method and evaluation index, by the way that the well mixed acid solution bottle containing certain proportion corrosion inhibiter is put into constant temperature
Water-bath in, the situation of change for observing acid solution outward appearance evaluates the dissolution dispersity of corrosion inhibiter.
Test result is as shown in table 2 below.
Table 2：
| Sequence number | Time, h | Dissolve deployment conditions | Index |
| Embodiment 1 | 36 | Acid solution transparent clear, aneroid/stratified liquid, aneroid/solid phase separation | One-level |
| Embodiment 2 | 36 | Acid solution transparent clear, aneroid/stratified liquid, aneroid/solid phase separation | One-level |
| Embodiment 3 | 36 | Acid solution transparent clear, aneroid/stratified liquid, aneroid/solid phase separation | One-level |
| Embodiment 4 | 36 | Acid solution transparent clear, aneroid/stratified liquid, aneroid/solid phase separation | One-level |
| Embodiment 5 | 36 | Acid solution transparent clear, aneroid/stratified liquid, aneroid/solid phase separation | One-level |
Can be seen that the corrosion inhibiter from the test result of upper table 2 has preferable compatibility, after being mixed with conventional acid solution
Occur in 36 hours without the scene such as precipitation, layering.
(3) corrosion inhibiter is damaged to core permeability and tested：
According to SY/T 5405-1996《Corrosion inhibiter method for testing performance and evaluation index are used in acidifying》In corrosion inhibiter rock core
Permeability impairment is tested, and the corrosion inhibiter aqueous solution of 2.5% concentration is squeezed into natural core, squeezed into rock core Flow Meter measurement slow
Lose the permeability of the forward and backward natural core of the agent aqueous solution, the degree that measure corrosion inhibiter damages to core permeability.
Corrosion inhibiter is calculated by formula (1) the loss ratio of core permeability：
In formula：μiThe loss ratio of-core permeability, %；
K0, Ki- corrosion inhibiter the aqueous solution injects forward and backward kerosene and surveys permeability, and 10-3μm2；
I=1,2,3,4,5.
Test result is as shown in table 3 below.Wherein, rock core 1 uses product prepared by corrosion inhibiter embodiment 1, rock in table 3
The heart 2 uses product prepared by corrosion inhibiter embodiment 2, by that analogy.
Table 3：
| Rock core number | K0, 10-3μm2 | Ki, 10-3μm2 | Permeability damage rate, % |
| 1 | 11.2 | 10.82 | 3.393 |
| 2 | 9.42 | 9.07 | 3.715 |
| 3 | 9.11 | 8.42 | 7.574 |
| 4 | 14.26 | 13.74 | 3.647 |
| 5 | 12.91 | 12.53 | 2.943 |
As can be seen from Table 3, the permeability damage rate in above-mentioned five kinds of acid fluid systems has preferable below 8%
Reservoir protection performance, disclosure satisfy that in actual production to the needs of reservoir protection.
In addition, the composite corrosion inhibitor is in actual use, can with conventional acid system and acidizing additive, including
Clay stabilizer, ferrous stability, demulsification cleanup agent, precipitating inhibitor etc. are respectively provided with preferable compatibility, and it is heavy to produce
Form sediment.It can be seen that the composite corrosion inhibitor can be used for and different acid systems is compounded, use range is wide.
Claims (5)
1. a kind of quinoline and the compound acidification corrosion inhibitor of new Mannich base, it is characterised in that including 12~15 parts by weight
Corrosion inhibiter host A and 12~17 parts of parts by weight corrosion inhibiter host B；Wherein,
The corrosion inhibiter host A is using phenylpropyl alcohol triazole, benzaldehyde and piperidines reaction generation, and its structural formula is as shown in Formula Il：
The corrosion inhibiter host B is using 3- aminoquinolines and benzyl chloride reaction generation, and its structural formula is as shown in Formula Il：
2. quinoline according to claim 1 and the compound acidification corrosion inhibitor of new Mannich base, it is characterised in that also
Propilolic alcohol including 3~4 parts by weight, the heavy alkylbenzene sulfonate of 0.5~1 parts by weight, the KI of 0.5~1 parts by weight, 1~2
The stannous chloride of parts by weight, the paregal O of 3~5 parts by weight, the formic acid of 5~7 parts by weight, the second phthalein aniline of 3~7 parts by weight, 2
The solvent of the triethanolamine of~7 parts by weight and 40~60 parts by weight.
3. quinoline according to claim 1 and the compound acidification corrosion inhibitor of new Mannich base, it is characterised in that institute
The preparation method for stating corrosion inhibiter host A is：It is 1 by mol ratio:1.1:1.3 three kinds of phenylpropyl alcohol triazole, benzaldehyde and piperidines is instead
Answer monomer and the absolute ethyl alcohol of 0.9~2.0 times of reaction monomers gross mass to add into reaction bulb, be warming up to 120~140 DEG C,
It is stirred at reflux 20~24h；Room temperature is subsequently cooled to, distills, obtains crude product；Continue gained crude product being added to 4 times of volumes
In absolute ethyl alcohol and it is stirred continuously, obtains white depositions precipitation, after staticly settling, removes upper solution and use white depositions
Anhydrous second washing, filter, dry, final gained white product is corrosion inhibiter host A.
4. quinoline according to claim 1 and the compound acidification corrosion inhibitor of new Mannich base, it is characterised in that institute
The preparation method for stating corrosion inhibiter host B is：It is 1 by mol ratio:1~1.1 20wt.%HCl and 3- aminoquinolines are added to anti-
Answer in bottle, be warming up to 80~100 DEG C of 0.5~1.5h of stirring reaction, be added dropwise with the benzyl chloride of 20wt.%HCl equimolar amounts and 1~
The 3- aminoquinolines of 1.1 times of 20wt.%HCl moles, continue 5~6h of reaction, and product is down to after room temperature and extracted with petroleum ether
Take to remove wherein remaining reactant, after be filtered to remove insoluble matter in solution, finally filtrate is put into vacuum drying chamber
It is dried to obtain red brown solid, as corrosion inhibiter host B.
5. quinoline according to claim 2 and the compound acidification corrosion inhibitor of new Mannich base, it is characterised in that institute
Solvent is stated as the methanol of 10~40 parts by weight and the mixed solution of 10~30 parts by weight polyethylene glycol.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108753271A (en) * | 2018-07-23 | 2018-11-06 | 中石化石油工程技术服务有限公司 | A kind of acidification composite corrosion inhibitor and preparation method thereof |
| CN113337824A (en) * | 2021-05-27 | 2021-09-03 | 成都英士瑞科技有限公司 | Acidizing corrosion inhibitor for high temperature |
| CN114634803A (en) * | 2022-04-13 | 2022-06-17 | 西南石油大学 | Ultrahigh-temperature-resistant acidizing corrosion inhibitor suitable for 180-200 ℃ and preparation method thereof |
| CN115612473A (en) * | 2022-10-11 | 2023-01-17 | 中国科学院兰州化学物理研究所 | High-temperature-resistant acidizing corrosion inhibitor, preparation method and application thereof, and corrosion-inhibiting acidizing fracturing fluid |
| CN116770310A (en) * | 2023-06-16 | 2023-09-19 | 西安三环石油管材科技有限公司 | High-temperature acidification corrosion inhibitor for titanium-nickel alloy of thickening hydrochloric acid system, and preparation method and application thereof |
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| CN108753271A (en) * | 2018-07-23 | 2018-11-06 | 中石化石油工程技术服务有限公司 | A kind of acidification composite corrosion inhibitor and preparation method thereof |
| CN113337824A (en) * | 2021-05-27 | 2021-09-03 | 成都英士瑞科技有限公司 | Acidizing corrosion inhibitor for high temperature |
| CN114634803A (en) * | 2022-04-13 | 2022-06-17 | 西南石油大学 | Ultrahigh-temperature-resistant acidizing corrosion inhibitor suitable for 180-200 ℃ and preparation method thereof |
| CN114634803B (en) * | 2022-04-13 | 2023-04-18 | 西南石油大学 | Ultrahigh-temperature acidification resistant corrosion inhibitor suitable for temperatures of 180 to 200 ℃ and preparation method thereof |
| CN115612473A (en) * | 2022-10-11 | 2023-01-17 | 中国科学院兰州化学物理研究所 | High-temperature-resistant acidizing corrosion inhibitor, preparation method and application thereof, and corrosion-inhibiting acidizing fracturing fluid |
| CN116770310A (en) * | 2023-06-16 | 2023-09-19 | 西安三环石油管材科技有限公司 | High-temperature acidification corrosion inhibitor for titanium-nickel alloy of thickening hydrochloric acid system, and preparation method and application thereof |
| CN116770310B (en) * | 2023-06-16 | 2023-12-12 | 西安三环石油管材科技有限公司 | High-temperature acidification corrosion inhibitor for titanium-nickel alloy of thickening hydrochloric acid system, and preparation method and application thereof |
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