CN107325802A - A kind of anti-incrustation corrosion inhibitor - Google Patents
A kind of anti-incrustation corrosion inhibitor Download PDFInfo
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- CN107325802A CN107325802A CN201710510035.3A CN201710510035A CN107325802A CN 107325802 A CN107325802 A CN 107325802A CN 201710510035 A CN201710510035 A CN 201710510035A CN 107325802 A CN107325802 A CN 107325802A
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- corrosion inhibitor
- incrustation corrosion
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/02—Acids; Metal salts or ammonium salts thereof, e.g. maleic acid or itaconic acid
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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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of anti-incrustation corrosion inhibitor, belong to water-treatment technology field.Anti-incrustation corrosion inhibitor of the present invention includes 35~40 parts of Epoxysuccinic acids, 20~30 parts of inhibiting solutions, 3~5 parts of disodium ethylene diamine tetraacetates, 2~4 parts of sodium gluconates, 5~7 parts of organic acids, 1~3 part of surfactant and 2~4 parts of tourmaline powders；Described inhibiting solution is to obtain hydrotacite suspension by hydrotalcite and itaconic acid solution mixing ultrasonic disperse, then adds polyethylene glycol, hydroxyethyl cellulose stirring after being mixed with Ludox and be made.The beneficial effects of the invention are as follows：Anti-incrustation corrosion inhibitor of the present invention has preferable scale inhibitor effect, and scale inhibition performance and corrosion inhibition rate are high, are worthy to be popularized and use.
Description
Technical field
The present invention relates to a kind of anti-incrustation corrosion inhibitor, belong to water-treatment technology field.
Background technology
Waterflooding extraction is that oil field keeps stratum energy, improves the conventional mining type of recovery ratio.With oil field development depth
It is continuously increased, injected water volume also increases increasingly.Oilfield injection water is mainly derived from oil field extracted water, and its salinity is high, containing big
The incrustation ions such as calcium, magnesium, barium, strontium are measured, and have dissolved the corrosive gas such as the oxygen, carbon dioxide and hydrogen sulfide of high level.This
A little ions are raised in temperature, abrupt pressure change and with incompatible water it is miscible when easily separated out in equipment, inner-walls of duct fouling, cause note
Water pressure is raised, and influences the normal operation of water treatment facilities, causes water-injection efficiency to decline and underdeposit corrosion.In addition, the corruption in water
Corrosion ion and dissolved gas easily cause the corrosion of equipment and pipeline, and these problems become as the increase of fluence is adopted in oil field
More protrude.The method of control oil field extracted water fouling is mainly the presence for stablizing incrustation ion by adding anti-incrustation corrosion inhibitor
State, suppresses the forming process of dirt, it is then the effective ways for slowing down metal erosion to add anti-incrustation corrosion inhibitor.
Anti-incrustation corrosion inhibitor is made up of organic phosphine, copolymer and copper inhibitor etc..Such as hydroxyl of anti-incrustation corrosion inhibitor generally
Ethylidene diphosphonic acid, ATMP, diethylenetriamine penta etc., but there is problems：（1）By
The characteristics of the basicity of oil field water is high, salinity is high so that its effect is not good, and the scaling rate in decrease recovered water,
Scale inhibition phenomenon, particularly scale inhibition performance can only temporarily be suppressed low, continuing fouling can cause the phenomenons such as holddown, disconnected bar to occur.（2）Due to
Poor to the dispersibility of oil for water soluble medicament, the scale inhibitor effect in oil-containing water is poor, corrosion inhibition rate reduction.
Therefore, how to realize a kind of good scale inhibitor effect, scale inhibition performance and the high anti-incrustation corrosion inhibitor of corrosion inhibition rate is in the industry urgently
Technical problem to be solved.
The content of the invention
The technical problems to be solved by the invention：Poor for traditional anti-incrustation corrosion inhibitor scale inhibitor effect, scale inhibition performance eases up
There is provided a kind of anti-incrustation corrosion inhibitor for the drawbacks of erosion rate is low.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of anti-incrustation corrosion inhibitor, is counted by weight, including：35~40 parts of Epoxysuccinic acids, 20~30 parts of inhibiting solutions, 3~5 parts
Disodium ethylene diamine tetraacetate, 2~4 parts of sodium gluconates, 5~7 parts of organic acids, 1~3 part of surfactant and 2~4 parts of tourmaline
Powder；
The preparation process of described inhibiting solution is：
（1）In mass ratio 1:10 mix hydrotalcite and itaconic acid solution, and ultrasonic disperse obtains hydrotacite suspension；
（2）In mass ratio 2:1 mixes hydrotacite suspension and Ludox, and Ludox mixture is obtained after stirring, poly- second two is added
Alcohol, hydroxyethyl cellulose discharges after stirring, you can obtain inhibiting solution.
Described Epoxysuccinic acid can also be modified, and method of modifying is：Count by weight, 40~50 are chosen respectively
Part Epoxysuccinic acid, 10~20 parts of acrylic acid, 15~25 parts of SSSs and 1~3 part of ammonium persulfate, add reactor
In, discharged after reaction, obtain reactant, as epoxy succinic acid copolymer.
The mesh number of described tourmaline powder is 400~500 mesh.
Described organic acid is one kind in tartaric acid, lactic acid, malic acid and salicylic acid.
2~5 parts of sodium citrates can also be added.
Described surfactant is α-sodium olefin sulfonate, neopelex and AEO sulfuric acid
One kind in sodium.
Step（1）Described in itaconic acid solution mass fraction be 3%.
Step（2）Described in polyethylene glycol quality be Ludox mixture quality 10~20%, hydroxyethyl cellulose quality
For Ludox mixture quality 2~4%.
The present invention is compared with other method, and advantageous effects are：
（1）The present invention adds tourmaline powder in anti-incrustation corrosion inhibitor, is due to that tourmaline powder can produce substantial amounts of anion, can be in water
Middle dissociated and aobvious elecrtonegativity, so that whole anti-incrustation corrosion inhibitor shows negative electrical charge, are conducive to the anti-incrustation corrosion inhibitor of the present invention to inhale
The brilliant nucleus of attached dirt, because nucleus carries negative electrical charge, by electrostatic repulsion, can suppress lattice and grow up to certain orientation, make crystalline substance
Lattice distort childlike, so as to reach excellent scale inhibition effect；
（2）Hydrotalcite, itaconic acid, Ludox and polyethylene glycol are prepared into inhibiting solution by the present invention, can form one in metal surface
Layer diaphragm, can effectively stop erosion of the aggressive electrolyte ion directly to metal surface, and protection is played to metal and is made
With；
（3）The present invention adds sodium citrate in anti-incrustation corrosion inhibitor, is due to that sodium citrate nitrogen-free is without phosphorus, environmentally friendly, lemon
Lemon acid sodium passes through the dilution of water, can be partially converted into citric acid, and sodium citrate and contain substantial amounts of hydroxyl and carboxyl, have
The ability of good metal cation complexing, so scale inhibition can be played a part of in aqueous；
（4）The present invention is handed over Epoxysuccinic acid, acrylic acid and SSS in the presence of ammonium persulfate initiator
Connection reaction, generates epoxy succinic acid copolymer, both with scale inhibition effect, there is inhibition, epoxy succinic acid copolymer point again
Carboxyl, the hydroxyl isopolarity group contained in minor structure, it is adsorbable in metal surface, change metal double electrical layerses, make metal
Ion activation can increase；And non-polar group can align into hydrophobic diaphragm, isolated corrosion away from metal surface
Property ion pair equipment surface erosion, contain sulfonic acid group in epoxy succinic acid copolymer again, introducing sulfonic acid group can improve altogether
The ability of the resistance calcium phosphate scale of polymers.
Embodiment
In mass ratio 1:10 mix hydrotalcite and the itaconic acid solution of mass fraction 3%, ultrasonic under 150~180W power
Hydrotacite suspension is obtained after scattered 10~15min；In mass ratio 2:1 mixes hydrotacite suspension and the Ludox of mass fraction 10%
Close, 20~30min of ultrasonic mixing under conditions of ultrasonic power is 250~300W obtains Ludox mixture, Ludox is mixed
Thing is put into reactor, and it is molten to add addition silicon after the polyethylene glycol of Ludox mixture quality 10~20%, 30~50min of stirring
The hydroxyethyl cellulose of glue mixture quality 2~4%, discharges after stirring, obtains inhibiting solution；Count by weight, 40~50 are chosen respectively
Part Epoxysuccinic acid, 10~20 parts of acrylic acid, 15~25 parts of SSSs and 1~3 part of ammonium persulfate, add reactor
In, 3~5h of stirring reaction after heating discharges after reaction, obtains reactant, as epoxy succinic acid copolymer, counts by weight,
35~40 parts of Epoxysuccinic acids, 20~30 parts of inhibiting solutions, 3~5 parts of disodium ethylene diamine tetraacetates, 2~4 parts of glucose are chosen respectively
Sour sodium, 5~7 parts of organic acids, 1~3 part of surfactant, 2~5 parts of sodium citrates and 2~4 part of 400~500 mesh tourmaline powder,
After 40~50min of stirring mixing, you can obtain anti-incrustation corrosion inhibitor.Described organic acid is tartaric acid, lactic acid, malic acid and salicylic acid
Middle one kind.Described surfactant is α-sodium olefin sulfonate, neopelex and AEO sulfuric acid
One kind in sodium.
Example 1
In mass ratio 1:10 mix hydrotalcite and the itaconic acid solution of mass fraction 3%, the ultrasonic disperse 10min under 150W power
Hydrotacite suspension is obtained afterwards；In mass ratio 2:1 mixes hydrotacite suspension and the Ludox of mass fraction 10%, in ultrasonic power
For ultrasonic mixing 20min under conditions of 250W, Ludox mixture is obtained, Ludox mixture is put into reactor, and is added
The hydroxyethyl cellulose of Ludox mixture quality 2% is added after the polyethylene glycol of Ludox mixture quality 10%, stirring 30min, is stirred
Discharged after mixing, obtain inhibiting solution；Count by weight, 40 parts of Epoxysuccinic acids, 10 parts of acrylic acid, 15 parts of styrene sulphurs are chosen respectively
Sour sodium and 1 part of ammonium persulfate, are added in reactor, stirring reaction 3h after heating, are discharged after reaction, are obtained reactant, as epoxy
Amber acid copolymer, is counted by weight, and 35 parts of Epoxysuccinic acids, 20 parts of inhibiting solutions, 3 parts of ethylenediamine tetra-acetic acids two are chosen respectively
Sodium, 2 parts of sodium gluconates, 5 parts of organic acids, 1 part of surfactant, 2 parts of sodium citrates and 2 part of 400 mesh tourmaline powder, stirring are mixed
Close after 40min, you can obtain anti-incrustation corrosion inhibitor.Described organic acid is tartaric acid.Described surfactant is α-olefin sulfonic acid
Sodium.
Example 2
In mass ratio 1:10 mix hydrotalcite and the itaconic acid solution of mass fraction 3%, the ultrasonic disperse 13min under 165W power
Hydrotacite suspension is obtained afterwards；In mass ratio 2:1 mixes hydrotacite suspension and the Ludox of mass fraction 10%, in ultrasonic power
For ultrasonic mixing 25min under conditions of 280W, Ludox mixture is obtained, Ludox mixture is put into reactor, and is added
The hydroxyethyl cellulose of Ludox mixture quality 3% is added after the polyethylene glycol of Ludox mixture quality 15%, stirring 45min, is stirred
Discharged after mixing, obtain inhibiting solution；Count by weight, 45 parts of Epoxysuccinic acids, 15 parts of acrylic acid, 20 parts of styrene sulphurs are chosen respectively
Sour sodium and 2 parts of ammonium persulfates, are added in reactor, stirring reaction 4h after heating, are discharged after reaction, are obtained reactant, as epoxy
Amber acid copolymer, is counted by weight, and 38 parts of Epoxysuccinic acids, 25 parts of inhibiting solutions, 4 parts of ethylenediamine tetra-acetic acids two are chosen respectively
Sodium, 3 parts of sodium gluconates, 6 parts of organic acids, 2 parts of surfactants, 4 parts of sodium citrates and 3 part of 450 mesh tourmaline powder, stirring are mixed
Close after 45min, you can obtain anti-incrustation corrosion inhibitor.Described organic acid is malic acid.Described surfactant is fatty alcohol polyoxy
Ethene ether sodium sulfate.
Example 3
In mass ratio 1:10 mix hydrotalcite and the itaconic acid solution of mass fraction 3%, the ultrasonic disperse 15min under 180W power
Hydrotacite suspension is obtained afterwards；In mass ratio 2:1 mixes hydrotacite suspension and the Ludox of mass fraction 10%, in ultrasonic power
For ultrasonic mixing 30min under conditions of 300W, Ludox mixture is obtained, Ludox mixture is put into reactor, and is added
The hydroxyethyl cellulose of Ludox mixture quality 4% is added after the polyethylene glycol of Ludox mixture quality 20%, stirring 50min, is stirred
Discharged after mixing, obtain inhibiting solution；Count by weight, 50 parts of Epoxysuccinic acids, 20 parts of acrylic acid, 25 parts of styrene sulphurs are chosen respectively
Sour sodium and 3 parts of ammonium persulfates, are added in reactor, stirring reaction 5h after heating, are discharged after reaction, are obtained reactant, as epoxy
Amber acid copolymer, is counted by weight, and 40 parts of Epoxysuccinic acids, 30 parts of inhibiting solutions, 5 parts of ethylenediamine tetra-acetic acids two are chosen respectively
Sodium, 4 parts of sodium gluconates, 7 parts of organic acids, 3 parts of surfactants, 5 parts of sodium citrates and 4 part of 500 mesh tourmaline powder, stirring are mixed
Close after 50min, you can obtain anti-incrustation corrosion inhibitor.Described organic acid is lactic acid.Described surfactant is detergent alkylate sulphur
Sour sodium.
Reference examples：The YC600 anti-incrustation corrosion inhibitors of Jiangyin company production.
The YC600 anti-incrustation corrosion inhibitors of anti-incrustation corrosion inhibitor obtained by above-described embodiment and reference examples are detected, specific detection
It is as follows：
1st, scale-inhibiting properties：With reference to SY/T 5673-93《Scale inhibitor for oilfield Reliable Evaluating Methods of Their Performance》, determine the resistance of anti-incrustation corrosion inhibitor
Dirty rate；
2nd, corrosion inhibition：With reference to SY/T 5273-2000《Oil field extracted water corrosion inhibiter method of evaluating performance》, using 50mm ×
13mm × 1.5mm Q235 steel standard test pieces, test pressure is normal pressure, and test temperature is 50 DEG C, and test period is 120h, is used
85-2 digital display constant temperature blender with magnetic force allows test(ing) medium to be in flow regime, and rotating speed is 1500r/min, determines corrosion rate and eases up
Erosion rate.
As a result as shown in Table 1.
Table one：
As seen from the above table, anti-incrustation corrosion inhibitor of the present invention has preferable scale inhibitor effect, and scale inhibition performance and corrosion inhibition rate are high.
Claims (8)
1. a kind of anti-incrustation corrosion inhibitor, is counted by weight, including：35~40 parts of Epoxysuccinic acids, 20~30 parts of inhibiting solutions, 3~5
Part disodium ethylene diamine tetraacetate, 2~4 parts of sodium gluconates, 5~7 parts of organic acids, 1~3 part of surfactant and 2~4 parts are electrically
Stone flour；
It is characterized in that：The preparation process of described inhibiting solution is：
In mass ratio 1:10 mix hydrotalcite and itaconic acid solution, and ultrasonic disperse obtains hydrotacite suspension；
In mass ratio 2:1 mixes hydrotacite suspension and Ludox, and Ludox mixture is obtained after stirring, polyethylene glycol is added,
Hydroxyethyl cellulose, discharges after stirring, you can obtain inhibiting solution.
2. a kind of anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that：Described Epoxysuccinic acid can also be carried out
Modified, method of modifying is：Count by weight, 40~50 parts of Epoxysuccinic acids, 10~20 parts of acrylic acid, 15~25 are chosen respectively
Part SSS and 1~3 part of ammonium persulfate, are added in reactor, are discharged after reaction, are obtained reactant, as epoxy succinic
Acid copolymer.
3. a kind of anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that：The mesh number of described tourmaline powder is 400
~500 mesh.
4. a kind of anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that：Described organic acid be tartaric acid, lactic acid,
It is a kind of in malic acid and salicylic acid.
5. a kind of anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that：2~5 parts of sodium citrates can also be added.
6. a kind of anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that：Described surfactant is α-alkenyl sulphur
One kind in sour sodium, neopelex and sodium sulfate of polyethenoxy ether of fatty alcohol.
7. a kind of anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that：Step（1）Described in itaconic acid solution
Mass fraction be 3%.
8. a kind of anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that：Step（2）Described in polyethylene glycol matter
Measure as Ludox mixture quality 10~20%, hydroxyethyl cellulose quality is Ludox mixture quality 2~4%.
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| CN201710510035.3A CN107325802A (en) | 2017-06-28 | 2017-06-28 | A kind of anti-incrustation corrosion inhibitor |
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| CN201710510035.3A CN107325802A (en) | 2017-06-28 | 2017-06-28 | A kind of anti-incrustation corrosion inhibitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558034A (en) * | 2018-05-29 | 2018-09-21 | 苏州佑君环境科技有限公司 | A kind of oil field waste corrosion inhibiting and descaling agent and preparation method thereof |
| CN108913112A (en) * | 2018-08-10 | 2018-11-30 | 宁夏朔光石油科技有限公司 | Cleaning antiscale and preparation method thereof |
| CN115572976A (en) * | 2022-11-11 | 2023-01-06 | 山东韩师傅新材料有限公司 | Composite corrosion inhibitor for metal steel structure of marine building and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558034A (en) * | 2018-05-29 | 2018-09-21 | 苏州佑君环境科技有限公司 | A kind of oil field waste corrosion inhibiting and descaling agent and preparation method thereof |
| CN108913112A (en) * | 2018-08-10 | 2018-11-30 | 宁夏朔光石油科技有限公司 | Cleaning antiscale and preparation method thereof |
| CN115572976A (en) * | 2022-11-11 | 2023-01-06 | 山东韩师傅新材料有限公司 | Composite corrosion inhibitor for metal steel structure of marine building and preparation method thereof |
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