CN113802124A - Corrosion inhibitor for inhibiting corrosion of hydrogen sulfide and application thereof - Google Patents
Corrosion inhibitor for inhibiting corrosion of hydrogen sulfide and application thereof Download PDFInfo
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- CN113802124A CN113802124A CN202111105244.2A CN202111105244A CN113802124A CN 113802124 A CN113802124 A CN 113802124A CN 202111105244 A CN202111105244 A CN 202111105244A CN 113802124 A CN113802124 A CN 113802124A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/12—Oxygen-containing compounds
- C23F11/124—Carboxylic acids
- C23F11/126—Aliphatic acids
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/141—Amines; Quaternary ammonium compounds
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/167—Phosphorus-containing compounds
- C23F11/1673—Esters of phosphoric or thiophosphoric acids
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention belongs to the field of petroleum processing aids, and particularly relates to a corrosion inhibitor mainly aiming at hydrogen sulfide corrosion and containing a polycyclic indolizine derivative quaternary ammonium salt compound and an application thereof, wherein the corrosion inhibitor comprises 1-60% of polycyclic indolizine derivative quaternary ammonium salt by weight percentage; 1-70% of a corrosion inhibitor; 1-10% of a surfactant; 1-90% of a solvent. The corrosion inhibitor is one or a mixture of more than two of imidazoline derivatives, phosphate, fatty acid or quaternary ammonium salt. The imidazoline derivative is prepared by reacting rapeseed oil, peanut oil, tall oil, sunflower seed oil or palm oil with a polyamine compound, and the chain length of the imidazoline derivative is 16-22. The corrosion inhibitor has the advantages of small dosage, high efficiency, firm film formation, good stability and low corrosion rate at lower concentration.
Description
Technical Field
The invention belongs to the field of chemical additives for oil fields in oil exploitation, and particularly relates to a corrosion inhibitor for inhibiting hydrogen sulfide corrosion by a polycyclic indolizine derivative-containing quaternary ammonium salt compound mainly used for hydrogen sulfide corrosion and application thereof.
Background
The metal corrosion causes huge economic loss, and the loss caused by the metal corrosion accounts for a considerable part of the total value of national production each year. In oil and gas production, carbon dioxide (CO)2) And hydrogen sulfide (H)2S) is associated corrosion often containedThe sex gas can cause serious corrosion to metal pipelines and equipment, and seriously affects the reliability and the service life of an oil and gas field gathering and transportation system. For example, natural gas H produced in the West plain gas field of China2S content up to 15% and CO2The content is more than 8 percent, and when the CO in the system is2/H2When the partial pressure of S is less than 20, the corrosion is H2The S control type is mainly (B.F. Pots et al, Improvement on De Waard-Milliams correction prediction and application to correction management, NACE correction 2002, paper 02235). The hydrogen sulfide is mainly corrosive, local pitting and hydrogen induced cracking can be caused, and serious safety accidents can be caused because the hydrogen sulfide is a highly toxic gas and trace leakage of corrosion can be fatal.
For with H2The oil and gas field corrosion mainly based on S is mainly realized by adopting high nickel-based alloy steel for corrosion prevention, coating corrosion prevention and corrosion inhibitor corrosion prevention, wherein the high nickel-based alloy steel greatly improves the corrosion prevention performance and the overall safety performance of the material, but the material is mainly expensive and increases the development cost of the oil and gas field, and the coating has the main problems of limited use condition and easy shedding. The corrosion inhibitor is a simple, effective and cheap method in metal corrosion protection, is suitable for various environments such as aqueous solution, acidic solution, alkaline solution, organic solvent, atmosphere and the like to prevent metal corrosion, and is widely applied in the processes of petroleum and natural gas exploitation and gathering and transportation. The corrosion inhibitor is a substance which can obviously reduce the corrosion speed of a metal material in a medium by adding a trace or a small amount into the metal corrosion medium. Imidazoline and its derivative corrosion inhibitor have good adsorption performance with its unique molecular structure, and has good adsorption performance for H2S、CO2The corrosion has a certain inhibiting effect, but the corrosion effect on high-sulfur-content hydrogen sulfide is limited when the corrosion inhibitor is used alone, and the corrosion inhibitor is usually compounded to achieve the best effect, for example, the quinoline quaternary ammonium salt is compounded with imidazoline to slow down the corrosion speed mainly comprising hydrogen sulfide.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the corrosion inhibitor for inhibiting the corrosion of the hydrogen sulfide, which has the advantages of small consumption, high efficiency, firm film formation, good stability and low corrosion rate at lower concentration.
The invention also provides application of the corrosion inhibitor for inhibiting the corrosion of the hydrogen sulfide.
In order to solve the technical problem, the invention is realized as follows:
a corrosion inhibitor for inhibiting corrosion of hydrogen sulfide comprises the following components in percentage by weight:
as a preferred scheme, the molecular structural formula of the polycyclic indolizine derivative quaternary ammonium salt is as follows:
furthermore, the corrosion inhibitor is one or a mixture of more than two of imidazoline derivatives, phosphate esters, fatty acids or quaternary ammonium salts.
Furthermore, the imidazoline derivative is prepared by reacting rapeseed oil, peanut oil, tall oil, sunflower seed oil or palm oil with a polyamine compound, and the chain length of the imidazoline derivative is 16-22.
Furthermore, the phosphate ester is alkyl phosphate ester, and the alkyl chain length of the phosphate ester is 12-22.
Furthermore, the solvent is one or a mixture of more than two of methanol, ethanol, isopropanol, glycol, butanol, benzene ring aromatic solvent and petroleum ether.
Furthermore, the surfactant is one or a mixture of more than two of anionic, cationic, zwitterionic and nonionic surfactants.
Furthermore, the total active concentration of the corrosion inhibitor is 1-90% in the formula, and when the corrosion inhibitor is added into a corrosive environment, the content of the corrosion inhibitor in a corrosive liquid is 1-1000 ppm.
The corrosion inhibitor for inhibiting the corrosion of the hydrogen sulfide is applied to the development and gathering and transportation of oil and gas fields.
The quaternary ammonium salt compound containing polycyclic indolizine derivative can be prepared by reacting polycyclic indolizine derivative with H2The corrosion rate is low under the corrosion condition with S as the main component and at a lower concentration, and the influence of the corrosion inhibitor on the environment can be reduced by reducing the consumption of the corrosion inhibitor. The imidazoline derivative is obtained by reacting rapeseed oil, peanut oil, tall oil, sunflower seed oil, palm oil and the like with polyamine, can be continuously reacted to form a polyoxyethylene addition derivative, can be combined with a metal surface to form a firm metal protective film, and has good stability. The experimental result shows that the corrosion inhibitor containing the polycyclic indolizine derivative quaternary ammonium salt has lower corrosion rate, better corrosion inhibition effect and no local corrosion.
Drawings
The present invention will be further described with reference to the following embodiments. The scope of the invention is not limited to the following expressions.
FIG. 1 is a graph showing the effect of a quaternary ammonium salt corrosion inhibitor without a polycyclic indolizine derivative;
FIG. 2 is a graph showing the effect of the corrosion inhibitor of the present invention.
Detailed Description
The corrosion inhibitor of the invention contains a mixture of polycyclic indolizine derivative quaternary ammonium salt compound and imidazoline derivative, and takes hydrogen sulfide as a main corrosion inhibitor.
The dimer structure of the polycyclic indolizine derivative quaternary ammonium salt is shown as the following formula I:
the counterion is Cl-The content of the polycyclic indolizine derivative quaternary ammonium salt is 1 to 60 wt%.
The imidazoline derivative has a chain length of 16-22, and can be obtained by reacting rapeseed oil, peanut oil, tall oil, sunflower seed oil, palm oil, oleic acid and the like with polyamine, and the imidazoline can be continuously reacted with ethylene oxide to form a polyoxyethylene addition derivative. Other corrosion inhibitor intermediates can also comprise alkyl phosphate, quaternary ammonium salt, fatty acid and the like, wherein the alkyl chain length of the corrosion inhibitor intermediates is 12-22. The content of the corrosion inhibitor in the product is 1-70 wt%.
For poorly water-dispersible corrosion inhibitors, surfactants may be added as dispersing and wetting agents, which may include anionic, cationic, zwitterionic, nonionic surfactants and mixtures thereof. The anion comprises alkyl sulfonate, alkyl benzene sulfonate, alkyl sulfate, fatty alcohol-polyoxyethylene ether sulfate, alkyl phosphate and the like. The cationic surfactant includes alkyl quaternary ammonium salt, dialkyl quaternary ammonium salt, alkyl amide quaternary ammonium salt, and alkyl dimethyl benzyl ammonium chloride. The amphoteric surfactant comprises alkyl carboxyl betaine, alkyl amidopropyl hydroxysulfobetaine, alkyl hydroxysulfobetaine and the like, the nonionic surfactant comprises fatty alcohol polyoxyethylene ether, alkylphenol ethoxylates and diethanolamide, and the alkyl length of the surfactant is 8-18, the surfactant contains saturated or unsaturated bonds and is a straight chain or a branched chain. The content of the surfactant in the product is 1-10 wt%.
The solvent includes methanol, ethanol, isopropanol, ethylene glycol, butanol, aromatic solvent containing benzene ring or petroleum ether, etc. The solvent content in the product is 1-90 wt%.
The corrosion inhibitor has an active content of 1-70 wt% in the formula.
The compound corrosion inhibitor can be continuously injected into a shaft or a gathering and transportation pipeline containing hydrogen sulfide corrosion by pump injection in field use, and the injection amount is 1-1000 ppm when the compound corrosion inhibitor is injected into an application environment.
Examples
For further illustration of the invention in the presence of H2The following examples are given to illustrate the effects of the present invention in a corrosive environment where S is dominant, but the scope of the present invention is not intended to be limited in any way by the following examples.
H2The corrosion inhibitor formula is shown in table 1, polycyclic indolizine derivative quaternary ammonium salt (BQD) is synthesized by referring to the method in the embodiment 2 in the Chinese patent application CN108410444, quinoline quaternary ammonium salt is a product of Sayaceae Ruoxing chemical Co., Ltd, and oleic acid imidazoline is an optimized chemicalThe product of the GmbH company has the formula content ratio of the content of the effective substances.
TABLE 1 composition of the compounding formulas
| Corrosion inhibitor A | Corrosion inhibitor B | |
| Oleic acid imidazoline | 15％ | 15％ |
| Quaternary quinoline amine salts | 12％ | |
| Polycyclic indolizine derivatives quaternary ammonium salts (BQD) | 12％ | |
| Polyoxyethylene nonyl phenol ether-10 | 3％ | 3％ |
| Methanol | 70％ | 70％ |
The preparation method of the corrosion inhibitor A comprises the following steps:
mixing oleic acid imidazoline, quinoline quaternary ammonium salt, nonylphenol polyoxyethylene ether-10 and methanol at 30 ℃ for 20 minutes.
The preparation method of the corrosion inhibitor B comprises the following steps:
the preparation method comprises the following steps of stirring oleic acid imidazoline, polycyclic indolizine derivative quaternary ammonium salt (BQD), nonylphenol polyoxyethylene ether-10 and methanol at the temperature of 30 ℃ for 20 minutes.
The corrosion test experiment is as follows, the material of the experimental corrosion coupon is L360, the size is 50x10x3mm, No. 600 and No. 1000 abrasive paper is used for processing the surface of the coupon to be flat, the surface of the segment is observed by magnifying by 100 times through a microscope, and no scratch and no pitting corrosion of the material are ensured. Soaking with acetone and anhydrous ethanol for 5 min respectively, removing residual oil on metal surface, blow-drying with cold air, and measuring weight of the hanging tablet to 0.0001 g. Corrosion test simulated water is shown in table 2 below.
TABLE 2 simulated Water composition (mg/L)
| HCO3 - | Mg2+ | Cl- | Na+,K+ | SO4 2- | B3+ | Ca2+ | Total degree of mineralization |
| 238 | 484 | 63,900 | 35,000 | 445 | 60 | 5,080 | 105,207 |
Adding corrosion inhibitor with certain concentration after preparing the salt water, deoxidizing for 18 hours by using high-purity nitrogen in advance, then deoxidizing for 1 hour after sucking 1.6 liters of solution into a 2 liter kettle in vacuum, then starting a stirrer, heating to 60 ℃, and introducing H2S partial pressure reaches 0.21MPa, saturated dissolution is carried out for half an hour, and then CO is introduced2The partial pressure is 0.48Mpa, the solution is saturated and dissolved for half an hour, and the hanging piece is set to rotate at 400 rpm. After 72 hours of testing, the apparatus was cooled. And taking out the hanging piece, sequentially cleaning the hanging piece by using acetone and ethanol in an ultrasonic instrument, wiping the surface of the hanging piece by using an eraser to remove a corrosion product film, cleaning, drying, weighing the weight of the tested hanging piece, calculating the corrosion rate, putting 3 same hanging pieces in each experiment, and taking the average value of the corrosion rates. Corrosion rate (r)corr) Can be calculated by the following formula:
corrosion inhibition rate (r)Blank space-rAdding corrosion inhibitor)*100/rBlank space；
Wherein: r iscorr-average corrosion rate, mm/y; m-weight of coupon before testing, g; m ist-the weight of the coupon after testing, g; s1Surface area of the hanging strip, cm2(ii) a Rho-coupon material density, g/cm3(ii) a t-hanging test time, h.
TABLE 3 dynamic Corrosion weight loss test results
Typical photographs of the coupon after etching are shown in fig. 1 and 2. FIG. 1 is a graph showing the effect of the corrosion inhibitor applied to the quaternary ammonium salt without the polycyclic indolizine derivative. FIG. 2 is a graph showing the effect of the corrosion inhibitor of the present invention. The corrosion inhibitor concentration was 100 ppm.
The results of the appearance photos of the hanging film after the corrosion test show that the corrosion inhibitor B containing the polycyclic indolizine derivative quaternary ammonium salt has lower corrosion rate, better corrosion inhibition effect and no local corrosion.
The specific descriptions or embodiments of the invention disclosed above may be made or practiced without exceeding the scope of the presently disclosed experimental means. All technical solutions or methods described in the preferred embodiments of the present invention are only used for illustrating the present invention and are not limited to the specific description or examples of the present invention, and those skilled in the art should understand that those technical means which do not depart from the concept, scope and spirit of the present invention and modify or substitute equivalents thereof to achieve the same technical effect are within the protection scope of the present invention.
Claims (9)
1. The corrosion inhibitor for inhibiting the corrosion of the hydrogen sulfide is characterized by comprising the following components in percentage by weight:
2. the corrosion inhibitor for inhibiting hydrogen sulfide corrosion according to claim 1, wherein: the molecular structural formula of the polycyclic indolizine derivative quaternary ammonium salt is as follows:
3. the corrosion inhibitor for inhibiting hydrogen sulfide corrosion according to claim 2, wherein: the corrosion inhibitor is one or a mixture of more than two of imidazoline derivatives, phosphate, fatty acid or quaternary ammonium salt.
4. A corrosion inhibitor for inhibiting corrosion by hydrogen sulfide as claimed in claim 3, wherein: the imidazoline derivative is prepared by reacting rapeseed oil, peanut oil, tall oil, sunflower seed oil or palm oil with a polyamine compound, and the chain length of the imidazoline derivative is 16-22.
5. A corrosion inhibitor for inhibiting corrosion by hydrogen sulfide as claimed in claim 3, wherein: the phosphate is alkyl phosphate, and the chain length of the alkyl group of the phosphate is 12-22.
6. The corrosion inhibitor for inhibiting hydrogen sulfide corrosion according to claim 5, wherein: the solvent is one or a mixture of more than two of methanol, ethanol, isopropanol, glycol, butanol, aromatic solvent containing benzene ring and petroleum ether.
7. The corrosion inhibitor for inhibiting hydrogen sulfide corrosion according to claim 6, wherein: the surfactant is one or a mixture of more than two of anionic surfactant, cationic surfactant, zwitterionic surfactant and nonionic surfactant.
8. The corrosion inhibitor for inhibiting hydrogen sulfide corrosion according to claim 7, wherein: the total active concentration of the corrosion inhibitor is 1-90% in the formula, and when the corrosion inhibitor is added into a corrosive environment, the total active concentration of the corrosion inhibitor is 1-1000 ppm in a corrosive liquid.
9. Use of the corrosion inhibitor for inhibiting corrosion by hydrogen sulfide according to any one of claims 1 to 8 in oil and gas field development and gathering.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111105244.2A CN113802124A (en) | 2021-09-22 | 2021-09-22 | Corrosion inhibitor for inhibiting corrosion of hydrogen sulfide and application thereof |
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| CN202111105244.2A CN113802124A (en) | 2021-09-22 | 2021-09-22 | Corrosion inhibitor for inhibiting corrosion of hydrogen sulfide and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716438A (en) * | 2022-04-02 | 2022-07-08 | 常州大学 | Derivative with benzo [7,8] indolizine [1,2-c ] quinoline skeleton and synthetic method thereof |
| CN115557950A (en) * | 2022-10-04 | 2023-01-03 | 中国石油大学(华东) | Quaternary ammonium salt corrosion inhibitor applied to lactic acid corrosion system |
| CN117448821A (en) * | 2023-10-30 | 2024-01-26 | 中国石油大学(华东) | Composite acidizing corrosion inhibitor compound based on indolizine derivative and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090181867A1 (en) * | 2008-01-10 | 2009-07-16 | Baker Hughes Incorporated | Corrosion inhibitors for oilfield applications |
| CN101838811A (en) * | 2009-03-20 | 2010-09-22 | 杨江 | New special corrosion inhibitor for oil production |
| CN108410444A (en) * | 2018-03-16 | 2018-08-17 | 中国石油大学(华东) | A kind of acidification corrosion inhibitor and the preparation method and application thereof based on dimer indole derivative |
-
2021
- 2021-09-22 CN CN202111105244.2A patent/CN113802124A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090181867A1 (en) * | 2008-01-10 | 2009-07-16 | Baker Hughes Incorporated | Corrosion inhibitors for oilfield applications |
| CN101838811A (en) * | 2009-03-20 | 2010-09-22 | 杨江 | New special corrosion inhibitor for oil production |
| CN108410444A (en) * | 2018-03-16 | 2018-08-17 | 中国石油大学(华东) | A kind of acidification corrosion inhibitor and the preparation method and application thereof based on dimer indole derivative |
Non-Patent Citations (1)
| Title |
|---|
| 胜利石油管理局钻井职工培训中心: "《石油作业防硫化氢技术》", vol. 1, 中国石油大学出版社, pages: 9 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716438A (en) * | 2022-04-02 | 2022-07-08 | 常州大学 | Derivative with benzo [7,8] indolizine [1,2-c ] quinoline skeleton and synthetic method thereof |
| CN115557950A (en) * | 2022-10-04 | 2023-01-03 | 中国石油大学(华东) | Quaternary ammonium salt corrosion inhibitor applied to lactic acid corrosion system |
| CN115557950B (en) * | 2022-10-04 | 2024-03-15 | 中国石油大学(华东) | Quaternary ammonium salt corrosion inhibitor applied to lactic acid corrosion system |
| CN117448821A (en) * | 2023-10-30 | 2024-01-26 | 中国石油大学(华东) | Composite acidizing corrosion inhibitor compound based on indolizine derivative and preparation method thereof |
| CN117448821B (en) * | 2023-10-30 | 2024-05-10 | 中国石油大学(华东) | Composite acidizing corrosion inhibitor compound based on indolizine derivative and preparation method thereof |
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