CN108165247B - Viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering and preparation method thereof - Google Patents
Viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering and preparation method thereof Download PDFInfo
- Publication number
- CN108165247B CN108165247B CN201810117294.4A CN201810117294A CN108165247B CN 108165247 B CN108165247 B CN 108165247B CN 201810117294 A CN201810117294 A CN 201810117294A CN 108165247 B CN108165247 B CN 108165247B
- Authority
- CN
- China
- Prior art keywords
- viscosity
- corrosion inhibitor
- oil
- reducing corrosion
- imidazoline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubricants (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a viscosity reduction corrosion inhibitor for thickened oil recovery and gathering, which comprises the following components in percentage by weight: 5 to 8.5 percent of weak polar polymer, 0.5 to 1.5 percent of alkyl aryl sulfonate, 1 to 2 percent of imidazoline derivative and 88 to 93.5 percent of organic solvent; wherein the sum of the weight of each component of the viscosity-reducing corrosion inhibitor is 100 percent. The invention also provides a preparation method of the viscosity-reducing corrosion inhibitor, which comprises the following steps: adding the weak polar polymer, the alkyl aryl sulfonate, the imidazoline derivative and the organic solvent into a reaction kettle, and uniformly stirring to fully mix all the components; and then cooling to obtain the viscosity-reducing corrosion inhibitor. The viscosity-reducing corrosion inhibitor has viscosity-reducing and corrosion-inhibiting effects, and can obviously reduce the viscosity of thick oil and slow down the corrosion of pipelines.
Description
Technical Field
The invention belongs to the field of oil field exploitation, and particularly relates to a viscosity reduction corrosion inhibitor for thickened oil exploitation gathering and transportation and a preparation method thereof.
Background
The thick oil is crude oil with viscosity of more than 50mPa.s at oil layer temperature, and can be further divided into common thick oil (50-10000 mPa.s), extra thick oil (10000-50000 mPa.s) and super thick oil (more than 50000mPa.s) according to viscosity. In the world, the reserves of the thick oil are equivalent to those of the common crude oil, and the thick oil in China accounts for about 56 percent of the reserves of the crude oil and is an important resource. Because the thick oil has high content of colloid and asphaltene, high viscosity and poor fluidity, the exploitation difficulty is high and the recovery ratio is low. The ultra-deep thick oil refers to a thick oil reservoir with a reservoir depth of more than 4000m, because the well is deep and thick, the exploitation of such oil and gas resources is always a worldwide problem, the exploitation cost is high, the economic benefit is low, meanwhile, the oil and gas resources are often accompanied by corrosive gases such as hydrogen sulfide, carbon dioxide and the like, the produced water mineralization is extremely high, and in addition, the bottom hole temperature is high, the oil and gas well pipe column and gathering and transportation lines face serious corrosion problems.
The thinning and viscosity reduction are widely used heavy oil recovery process. The process uses distillate oil, thin crude oil or other organic solvent as diluent, and injects the diluent into a shaft to mix with thick oil, so that the viscosity of the thick oil is greatly reduced, the fluidity of the thick oil is improved, and the level of exploitation is reached. According to the prior research, the viscosity of the crude oil is generally below 4000 mPas for recovery and transportation. For some super heavy oil and extra heavy oil, such as thick oil of Tahe, the viscosity is more than 50000mPa.s, and a large amount of diluent is needed to reach the viscosity required by normal production. The amount of diluent used is an important indicator in determining the economics of heavy oil recovery. The development of oil-soluble viscosity reducers aiming at reducing the dosage of the diluents is widely carried out, but most of the oil-soluble viscosity reducers are only limited to indoor research and field test stages. The industrial production requires that the oil-soluble viscosity reducer has higher substitution efficiency, a large amount of diluent can be substituted by adding a small amount of viscosity reducer, and most of the reported oil-soluble viscosity reducers cannot meet the requirements.
At present, two ideas for solving the corrosion problem of the oil field are provided, wherein one idea is to change the material of an oil-gas well pipe column to enable the oil-gas well pipe column to be corrosion-resistant or to be lined with an anti-corrosion pipe; secondly, corrosion inhibitors are used. In the practical application process, the corrosion-resistant pipe has high cost, pitting and pitting still occur, and the strength can not meet the production requirement within the safe service life. Although the corrosion inhibitor is generally applied, the corrosion inhibitor still resists high temperature in a high mineralization environment.
Therefore, in order to reduce the consumption of the diluent and ensure that the strength of the oil well tubular column can normally meet the production requirement, a chemical agent composition system with viscosity reduction and corrosion inhibition effects is required to be invented.
Disclosure of Invention
The invention aims to provide a viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering and a preparation method thereof aiming at the defects of the prior art.
On one hand, the invention provides a viscosity reduction corrosion inhibitor for thickened oil recovery and gathering, which comprises the following components in percentage by weight: 5 to 8.5 percent of weak polar polymer, 0.5 to 1.5 percent of alkyl aryl sulfonate, 1 to 2 percent of imidazoline derivative and 88 to 93.5 percent of organic solvent; wherein the sum of the weight of each component of the viscosity-reducing corrosion inhibitor is 100 percent.
In the viscosity reducing corrosion inhibitor, the weak polar polymer is a methacrylate-styrene-acrylamide terpolymer and/or a maleic anhydride-vinyl acetate-butyl acrylate copolymer.
The viscosity reducing corrosion inhibitor is a bis-alkyl aryl sulfonate of formula (I) or formula (II):
in the general formula (I), R1And R2Each independently is C1To C5Alkyl, M is Na or K;
in the general formula (II), R3And R4Each independently is C1To C5Alkyl, M is Na or K.
In the viscosity-reducing corrosion inhibitor, the alkylaryl sulfonate is tricosyl cumene sulfonate, pentadecyl cumene sulfonate, nonadecyl aryl sulfonate and/or isomeric sodium octa-isomeric tridecyl naphthalene sulfonate.
The viscosity-reducing corrosion inhibitor is a compound of the general formula (III):
wherein R is5Is C10To C20Linear alkyl, branched alkyl, cycloalkyl or aromatic hydrocarbon radical of R6Is amino, hydroxyethyl or hydroxypropyl.
In the viscosity reducing corrosion inhibitor, the imidazoline derivative is fluorine-containing decanoic acid imidazoline, lauric acid imidazoline, oleic acid imidazoline, oleamide ethyl imidazoline, dialkyl amide imidazoline and/or heptadecenyl methyl sulfate imidazoline.
In the viscosity reducing corrosion inhibitor, the organic solvent is industrial white oil and/or crude vegetable oil.
In the viscosity reducing corrosion inhibitor, the vegetable crude oil is crude cotton seed oil.
On the other hand, the invention provides a preparation method of the viscosity-reducing corrosion inhibitor, which comprises the following steps: adding the weak polar polymer, the alkyl aryl sulfonate, the imidazoline derivative and the organic solvent into a reaction kettle, and uniformly stirring to fully mix all the components; and then cooling to obtain the viscosity-reducing corrosion inhibitor.
In the above preparation method, the temperature in the reaction vessel is 70 ℃ to 90 ℃, the stirring speed is 1400rpm to 1500rpm, and the stirring time is 2 to 3 hours.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) one agent is multi-purpose, which can reduce the viscosity of the thick oil by 70-80%, save the thin oil consumption, and form a compact protective film on the thin oil mixing pipeline, the casing, the oil pipe and the outer oil conveying pipeline wall, thereby playing the dual functions of viscosity reduction, drag reduction and corrosion resistance protection (the corrosion inhibition rate is 60-79.5%) in the whole process of the production and transportation system.
(2) The wide-spread performance is strong, and the viscosity reducing and corrosion inhibiting performances are better under different medium conditions of a thin oil pipeline without water horizontal flow, shaft vertical pipe flow, gathering and transportation horizontal flow and the like.
(3) The test shows that the catalyst does not contain organic chlorine, and has no harm to the downstream refining process, namely, the subsequent crude oil dehydration and water quality treatment of the system are not influenced.
(4) The preparation method is simple and easy to operate, can be uniformly stirred at the temperature of 70-90 ℃, and is suitable for industrial production and field application.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to fully understand the objects, features and effects of the invention. The process of the present invention employs conventional methods or apparatus in the art, except as described below. Unless otherwise indicated, terms referred to in the present invention have meanings commonly understood by those skilled in the art.
Aiming at the problems existing in the current thick oil exploitation gathering and transportation process, the first aspect of the invention provides a viscosity reduction corrosion inhibitor for thick oil exploitation gathering and transportation, which comprises the following components in percentage by weight: 5 to 8.5 percent of weak polar polymer, 0.5 to 1.5 percent of alkyl aryl sulfonate, 1 to 2 percent of imidazoline derivative and 88 to 93.5 percent of organic solvent; wherein the sum of the weight of each component of the viscosity-reducing corrosion inhibitor is 100 percent.
Preferably, the less polar polymer may be a methacrylate-styrene-acrylamide terpolymer, and/or a maleic anhydride-vinyl acetate-butyl acrylate copolymer. In the present invention, both of a methacrylate-styrene-acrylamide terpolymer and a maleic anhydride-vinyl acetate-butyl acrylate copolymer, which are commercially available, can be used in the present invention.
Preferably, the alkylaryl sulfonate is a bis-alkylaryl sulfonate of the following formula (I) or formula (II):
in the general formula (I), R1And R2Each independently is C1To C5Alkyl, M is Na or K.
In the general formula (II), R3And R4Each independently is C1To C5Alkyl, M is Na or K.
More preferably, the alkylaryl sulfonate may be a eicosatriylbenzene sulfonate, a pentadecylbenzene sulfonate or a nonadecyl aryl sulfonate. Specific salts may be potassium salts, sodium salts, and the like. For example, the alkylaryl sulfonate can be a sodium salt of tricosyl cumene sulfonate, a potassium salt of pentadecyl cumene sulfonate, a potassium salt of nonadecyl aryl sulfonate, a sodium salt of the isomeric octa-isomeric tridecyl naphthalene sulfonate, and the like. In the present invention, alkyl aryl sulfonates that are commercially available can be used in the present invention.
Preferably, the imidazoline derivative is a compound of the following general formula (III):
wherein R is5Is C10To C20Linear alkyl, branched alkyl, cycloalkyl or aromatic hydrocarbon radical of R6Is amino, hydroxyethyl or hydroxypropyl.
More preferably, the imidazoline derivative may be fluoro-decanoic acid imidazoline, lauric acid imidazoline, oleic acid imidazoline, oleamide ethyl imidazoline, bis-alkylamide imidazoline, or heptadecenyl methyl sulfate imidazoline. In the present invention, imidazoline derivatives that are commercially available can be used in the present invention.
Preferably, the organic solvent may be industrial white oil and/or vegetable oil crude oil. Wherein the industrial white oil is a mixture of liquid hydrocarbons, and contains C as main ingredient16～C31The mixture of n-isoparaffins in (1) is obtained by subjecting a high-boiling fraction (i.e., a lubricant fraction) obtained by petroleum fractionation to dewaxing, carbonization, neutralization, and activated clay purification. The crude vegetable oil is primary oil which is prepared from vegetable oil materials such as cottonseed, rapeseed, oil sunflower and the like and is not refined. Such as cottonseed oil. In the present invention, both of commercially available industrial white oil and vegetable oil crude oil can be used in the present invention.
The viscosity reduction corrosion inhibitor provided by the invention adopts the components and the proportion, the synergistic effect of the components is obvious, the viscosity reduction rate after combination can reach 82.7%, and the viscosity reduction corrosion inhibitor has a good corrosion inhibition effect under the condition of 70-120 ℃, and the average corrosion inhibition rate is 79.5%.
The second aspect of the invention provides a preparation method of the viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering, which comprises the following steps: according to the proportion, the weak polar polymer, the alkyl aryl sulfonate, the imidazoline derivative and the organic solvent are added into a reaction kettle, the mixture is uniformly stirred for 2 to 3 hours at the temperature of between 70 and 90 ℃ and at the speed of between 1400 and 1500rpm, so that all the components are fully mixed, after the mixture is finished, the material is placed still in the reaction kettle and cooled until the temperature is cooled to the room temperature, and the obtained material is the viscosity reduction corrosion inhibitor with the viscosity reduction and corrosion inhibition effects for the exploitation and gathering of the thick oil.
Examples
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention. The experimental methods without specifying specific conditions in the following examples were selected according to the conventional methods and conditions, or according to the commercial instructions.
The sources of the various materials used in the examples below are shown in table 1.
TABLE 1
Example 1:
the viscosity reduction corrosion inhibitor for thickened oil recovery and gathering of the embodiment comprises the following components: 5g of methacrylate-styrene-acrylamide terpolymer, 1.0g of potassium tricosyl cumenesulfonate, 1.5g of fluorine-containing decanoic acid imidazoline and 92.5g of No. 100 industrial white oil.
The viscosity-reducing corrosion inhibitor of the embodiment is prepared by the following method:
1) respectively weighing 92.5g of industrial white oil, 5g of methacrylate-styrene-acrylamide terpolymer, 1.5g of fluorine-containing decanoic acid imidazoline and 1g of potassium tricosyl cumene sulfonate, putting into a reaction kettle, and uniformly stirring to fully mix the components in the composition, wherein the temperature is controlled at 75 ℃, the stirring speed is 1500rpm, and the stirring time is 3 hours;
2) after the reaction is finished, the material is placed in a reaction kettle for standing and cooling until the temperature is cooled to room temperature, and the obtained material is marked as viscosity reduction corrosion inhibitor 1.
Example 2:
the viscosity reduction corrosion inhibitor for thickened oil recovery and gathering of the embodiment comprises the following components: 7g of maleic anhydride-vinyl acetate-butyl acrylate copolymer, 0.8g of sodium pentadecyl cumene sulfonate, 2g of lauric acid imidazoline and 91.2g of No. 100 industrial white oil.
The viscosity-reducing corrosion inhibitor of the embodiment is prepared by the following method:
1) respectively weighing 91.2g of industrial white oil, 7g of maleic anhydride-vinyl acetate-butyl acrylate copolymer, 2g of lauric acid imidazoline and 0.8g of sodium pentadecyl cumenesulfonate, putting the materials into a reaction kettle, and uniformly stirring the materials to fully mix the components in the composition, wherein the temperature is controlled at 80 ℃, the stirring speed is 1500rpm, and the stirring time is 3 hours;
2) and after the reaction is finished, standing and cooling the material in the reaction kettle until the temperature is cooled to room temperature, and marking the obtained material as the viscosity-reducing corrosion inhibitor 2.
Example 3:
the viscosity reduction corrosion inhibitor for thickened oil recovery and gathering of the embodiment comprises the following components: 8g of maleic anhydride-vinyl acetate-butyl acrylate copolymer, 1.5g of nonadecyl aryl sodium sulfonate, 2g of oleic acid imidazoline and 88.5g of cottonseed oil crude oil.
The viscosity-reducing corrosion inhibitor of the embodiment is prepared by the following method:
1) respectively weighing 88.5g of cottonseed oil crude oil, 8g of maleic anhydride-vinyl acetate-butyl acrylate copolymer, 2g of oleic acid imidazoline and 1.5g of nonadecyl aryl sodium sulfonate, putting into a reaction kettle, uniformly stirring to fully mix the components in the composition, controlling the temperature at 90 ℃, the stirring speed at 1500rpm, and the stirring time at 2 h;
2) and after the reaction is finished, standing and cooling the material in the reaction kettle until the temperature is cooled to room temperature, and marking the obtained material as the viscosity-reducing corrosion inhibitor 3.
Example 4: application tests (secret test)
Preparation of simulated oil sample
Remarking: the used thin oil comes from a thin oil blending system of an oil field, the viscosity is 127mPa.s, and the density is 0.90g/cm3；
The thick oil is super thick oil in Tahe 12 region, with viscosity of 358620mPa.s and density of 1.029g/cm3；
The formation water is produced from oil field and has a density of 1.14g/cm3Total degree of mineralization 22X 104mg/L,Ca2+Mg2+1.8×104mg/L。
Second, Experimental scheme
1. Viscosity reduction Performance evaluation
The performance of the oil-soluble viscosity reducer is tested according to a method for evaluating the performance of the oil-soluble viscosity reducer in the standard QSH 10201519-2013 general technical conditions for the viscosity reducer.
2. Evaluation of Corrosion inhibition Performance
And (3) according to SY/T5273 plus 2000 evaluation method for performances of corrosion inhibitors for oilfield produced water, determining the corrosion inhibition rate of the system on the P110 steel sheet.
Third, experimental procedures and results
According to the above experimental scheme, the viscosity reduction and corrosion inhibition experiments are performed on the viscosity reduction corrosion inhibitor of embodiments 1-3 of the present invention, and the specific experimental results are shown in table 2:
TABLE 2 viscosity reduction and Corrosion inhibition ratios of different viscosity reduction Corrosion inhibitors
| Serial number | Viscosity-reducing corrosion inhibitor | Concentration ppm of | Simulated oil | Temperature of | The viscosity reduction rate% | Corrosion inhibition rate% |
| 1 | Viscosity-reducing corrosion inhibitor 1 | 5000 | Blending with thin oil 1 | 50 | 20 | 15 |
| 2 | Viscosity-reducing corrosion inhibitor 1 | 5000 | Mixed oil 1 | 120 | 72 | 18 |
| 3 | Viscosity-reducing corrosion inhibitor 1 | 5000 | Mixed oil 2 | 120 | 70.5 | 73 |
| 4 | Viscosity-reducing corrosion inhibitor 1 | 5000 | Mixed oil 3 | 120 | 73.2 | 75 |
| 5 | Viscosity-reducing corrosion inhibitor 1 | 5000 | Mixed oil 1 | 70 | 82.7 | 17 |
| 6 | Viscosity-reducing corrosion inhibitor 1 | 5000 | Mixed oil 2 | 70 | 80.2 | 69 |
| 7 | Viscosity-reducing corrosion inhibitor 1 | 5000 | Mixed oil 3 | 70 | 79.5 | 71 |
| 8 | Viscosity-reducing corrosion inhibitor 2 | 5000 | Blending with thin oil 1 | 50 | 12.3 | 13 |
| 9 | Viscosity-reducing corrosion inhibitor 2 | 5000 | Mixed oil 1 | 120 | 79.5 | 17 |
| 10 | Viscosity-reducing corrosion inhibitor 2 | 5000 | Mixed oil 2 | 120 | 73.5 | 74 |
| 11 | Viscosity-reducing corrosion inhibitor 2 | 5000 | Mixed oil 3 | 120 | 76.2 | 79 |
| 12 | Viscosity-reducing corrosion inhibitor 2 | 5000 | Mixed oil 1 | 70 | 81.5 | 14 |
| 13 | Viscosity-reducing corrosion inhibitor 2 | 5000 | Mixed oil 2 | 70 | 80.9 | 79 |
| 14 | Viscosity-reducing corrosion inhibitor 2 | 5000 | Mixed oil 3 | 70 | 78.5 | 76 |
| 15 | Viscosity-reducing corrosion inhibitor 3 | 5000 | Blending with thin oil 1 | 50 | 22 | 18 |
| 16 | Viscosity-reducing corrosion inhibitor 3 | 5000 | Mixed oil 1 | 120 | 75 | 20 |
| 17 | Viscosity-reducing corrosion inhibitor 3 | 5000 | Mixed oil 2 | 120 | 75.5 | 74 |
| 18 | Viscosity-reducing corrosion inhibitor 3 | 5000 | Mixed oil 3 | 120 | 75.2 | 72 |
| 19 | Viscosity-reducing corrosion inhibitor 3 | 5000 | Mixed oil 1 | 70 | 82.3 | 19 |
| 20 | Viscosity-reducing corrosion inhibitor 3 | 5000 | Mixed oil 2 | 70 | 80.6 | 75 |
| 21 | Viscosity-reducing corrosion inhibitor 3 | 5000 | Mixed oil 3 | 70 | 79.8 | 75 |
The results in table 2 show that the viscosity-reducing corrosion inhibitor of the present invention is generally applicable to thick oils with various viscosities, and can achieve good viscosity-reducing and corrosion-inhibiting effects at a temperature of 70 ℃ to 120 ℃, wherein the viscosity-reducing rate can reach 82.7% at most, and the corrosion-inhibiting rate can reach 79% at most.
The present invention has been disclosed in the foregoing in terms of preferred embodiments, but it will be understood by those skilled in the art that these embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to those of the embodiments are intended to be included within the scope of the claims of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined in the claims.
Claims (7)
1. The viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering is characterized by comprising the following components in percentage by weight: 5 to 8.5 percent of weak polar polymer, 0.5 to 1.5 percent of alkyl aryl sulfonate, 1 to 2 percent of imidazoline derivative and 88 to 93.5 percent of organic solvent; wherein the sum of the weight of each component of the viscosity-reducing corrosion inhibitor is 100 percent;
wherein the weakly polar polymer is a methacrylate-styrene-acrylamide terpolymer and/or a maleic anhydride-vinyl acetate-butyl acrylate copolymer;
wherein the alkylaryl sulfonate is a bis-alkylaryl sulfonate of formula (I) or formula (II):
in the general formula (I), R1And R2Each independently is C1To C5Alkyl, M is Na or K;
in the general formula (II), R3And R4Each independently is C1To C5Alkyl, M is Na or K;
wherein the imidazoline derivative is a compound of general formula (III):
wherein R is5Is C10To C20Linear alkyl, branched alkyl, cycloalkyl or aromatic hydrocarbon radical of R6Is amino, hydroxyethyl or hydroxypropyl.
2. Viscosity reducing corrosion inhibitor according to claim 1, characterized in that the alkylaryl sulfonates are tricosyl cumene sulfonates, pentadecyl cumene sulfonates, nonadecyl aryl sulfonates and/or isomeric sodium salts of octa-isomeric tridecyl naphthalene sulfonates.
3. The viscosity-reducing corrosion inhibitor according to claim 1, wherein the imidazoline derivative is fluoro-decanoic acid imidazoline, lauric acid imidazoline, oleic acid imidazoline, oleamide ethyl imidazoline, dialkyl amide imidazoline, and/or heptadecenyl methyl sulfate imidazoline.
4. The viscosity-reducing corrosion inhibitor according to claim 1, wherein the organic solvent is industrial white oil and/or crude vegetable oil.
5. The viscosity-reducing corrosion inhibitor according to claim 4, wherein the crude vegetable oil is crude cotton seed oil.
6. The process for preparing viscosity-reducing corrosion inhibitor according to any one of claims 1 to 5, comprising: adding the weak polar polymer, the alkyl aryl sulfonate, the imidazoline derivative and the organic solvent into a reaction kettle, and uniformly stirring to fully mix all the components; and then cooling to obtain the viscosity-reducing corrosion inhibitor.
7. The method according to claim 6, wherein the temperature in the reaction tank is 70 ℃ to 90 ℃, the stirring speed is 1400rpm to 1500rpm, and the stirring time is 2 to 3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117294.4A CN108165247B (en) | 2018-02-06 | 2018-02-06 | Viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117294.4A CN108165247B (en) | 2018-02-06 | 2018-02-06 | Viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108165247A CN108165247A (en) | 2018-06-15 |
| CN108165247B true CN108165247B (en) | 2020-12-11 |
Family
ID=62513349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117294.4A Active CN108165247B (en) | 2018-02-06 | 2018-02-06 | Viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108165247B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363092B (en) * | 2020-04-30 | 2022-02-11 | 大庆华营化工有限公司 | Preparation method of drag reducer for fracturing |
| CN113583650B (en) * | 2021-08-27 | 2022-08-23 | 山东新港化工有限公司 | Viscosity-reducing oil displacement agent for viscosity-reducing composite flooding of common heavy oil reservoir and preparation method and application thereof |
| US11993744B2 (en) | 2022-04-12 | 2024-05-28 | Championx Usa Inc. | Solid paraffin inhibitor and corrosion inhibitor compositions |
| CN116083068B (en) * | 2023-04-11 | 2023-06-09 | 山东海嘉石油化工有限公司 | Thickened oil viscosity reducer and preparation method thereof |
| CN116286091B (en) * | 2023-05-22 | 2023-08-11 | 新疆科力新技术发展股份有限公司 | Oil field produced liquid composite treatment medicament and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4506733A (en) * | 1983-08-19 | 1985-03-26 | Alberta Oil Sands Technology And Research Authority | Additive for inclusion in a heavy oil reservoir undergoing steam injection |
| CN101050537A (en) * | 2006-04-04 | 2007-10-10 | 中国石油天然气股份有限公司 | Corrosion inhibitor for inhibiting metal corrosion and preparation method thereof |
| CN104232050A (en) * | 2014-09-05 | 2014-12-24 | 纳百科创(北京)技术开发有限公司 | Compound oil-soluble viscosity reducer for reducing viscosity of thickened oil and preparation method of compound oil-soluble viscosity reducer |
| CN105131167A (en) * | 2015-07-07 | 2015-12-09 | 中国石油大学(华东) | Alkylaromatic hydrocarbon substituted ethylene monomer-containing oil-soluble polymer viscosity reducer and microwave preparation method thereof |
-
2018
- 2018-02-06 CN CN201810117294.4A patent/CN108165247B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4506733A (en) * | 1983-08-19 | 1985-03-26 | Alberta Oil Sands Technology And Research Authority | Additive for inclusion in a heavy oil reservoir undergoing steam injection |
| CN101050537A (en) * | 2006-04-04 | 2007-10-10 | 中国石油天然气股份有限公司 | Corrosion inhibitor for inhibiting metal corrosion and preparation method thereof |
| CN104232050A (en) * | 2014-09-05 | 2014-12-24 | 纳百科创(北京)技术开发有限公司 | Compound oil-soluble viscosity reducer for reducing viscosity of thickened oil and preparation method of compound oil-soluble viscosity reducer |
| CN105131167A (en) * | 2015-07-07 | 2015-12-09 | 中国石油大学(华东) | Alkylaromatic hydrocarbon substituted ethylene monomer-containing oil-soluble polymer viscosity reducer and microwave preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108165247A (en) | 2018-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108165247B (en) | Viscosity-reducing corrosion inhibitor for thickened oil recovery and gathering and preparation method thereof | |
| CN102942908B (en) | Water injected pitting-corrosion composite inhibitor and application thereof | |
| CN109609110B (en) | CO (carbon monoxide)2Corrosion and scale inhibitor for oil displacement, preparation method and use method thereof | |
| CN102061157A (en) | Gas-liquid two-phase corrosion inhibitor for gas well and preparation method thereof | |
| CN104559983B (en) | Composite corrosion inhibitor and corrosion inhibiter and its application and metal component anti-corrosion method | |
| EA022187B1 (en) | Biodegradable lubricating composition and use thereof in a drilling fluid, in particular for very deep reservoirs | |
| ITVA20080030A1 (en) | ANTI-AGGREGATE ADDITIVES FOR DRILLING FLUIDS | |
| CN105483708B (en) | Contain H suitable for oil gas field2S/CO 2Corrosion inhibiter of corrosive environment feed-line and preparation method thereof | |
| CN108048065A (en) | Oil-gas well corrosion inhibitor and preparation method and application thereof | |
| CN109748400B (en) | Phosphorus-free composite corrosion and scale inhibitor, application thereof and treatment method of circulating cooling water | |
| CN110452674A (en) | CO2Annulus protection fluid for flooding and injection well and preparation method thereof | |
| CN111441057A (en) | Oil-soluble neutralization corrosion inhibitor for refinery tower top low-temperature system and preparation method thereof | |
| CN108251087B (en) | Carbon dioxide flooding injection well annulus protection fluid and preparation method and use method thereof | |
| WO2015175059A2 (en) | Quaternary fatty acid esters as corrosion inhibitors | |
| CN109748401B (en) | Method for treating circulating cooling water | |
| CN105238379B (en) | A kind of long-acting corrosion inhibiter of acidification of gas well and its preparation method and application method | |
| CN105154174A (en) | Efficient compound corrosion inhibitor for hydraulic support hydraulic fluid and application of efficient compound corrosion inhibitor | |
| CN107573914A (en) | A kind of compound acidification corrosion inhibitor based on Mannich base and BAA | |
| CN105018207B (en) | A kind of anti-corrosion screw thread oil/fat composition and preparation method thereof | |
| CN112939241A (en) | Scale and corrosion inhibitor applied to circulating cooling water system of coal gasification chemical island equipment | |
| CN103013484B (en) | Corrosion inhibitor for controlling carbon dioxide and hypersalinity corrosion | |
| CN102517588B (en) | H2S corrosion resistant ground gathering system corrosion inhibitor and preparation method thereof | |
| JP2021530600A (en) | Synthetic lubricant for aqueous drilling liquor system | |
| CN111100608B (en) | Water-glycol type heat transfer medium with corrosion inhibition effect on galvanized pipe | |
| CN103450865B (en) | Oil-soluble hydrogen sulfide-resistant corrosion inhibitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |