CN107880864B - Diene acid fracturing corrosion inhibitor and preparation method thereof - Google Patents
Diene acid fracturing corrosion inhibitor and preparation method thereof Download PDFInfo
- Publication number
- CN107880864B CN107880864B CN201610875322.XA CN201610875322A CN107880864B CN 107880864 B CN107880864 B CN 107880864B CN 201610875322 A CN201610875322 A CN 201610875322A CN 107880864 B CN107880864 B CN 107880864B
- Authority
- CN
- China
- Prior art keywords
- diene
- corrosion inhibitor
- acid fracturing
- corrosion
- acid
- 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
- C09K8/60—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
Abstract
The invention relates to a diene acid fracturing corrosion inhibitor and a preparation method thereof. The diene acid fracturing corrosion inhibitor comprises a diene compound shown as a general formula (I), a synergist and an optional wetting agent. The diene acid fracturing corrosion inhibitor provided by the invention is suitable for corrosion prevention and corrosion inhibition in an underground acid environment of acid fracturing construction of sandstone or carbonate reservoir oil and gas wells in an oil and gas development process, the corrosion inhibition performance reaches the first-level industrial standard, the corrosion speed of acid liquor on ground construction equipment and underground tools can be effectively reduced, the construction equipment and the underground tools are protected, and the construction risk is reduced.
Description
Technical Field
The invention belongs to the technical field of petroleum development, and particularly relates to a diene acid fracturing corrosion inhibitor and a preparation method thereof.
Background
The acid fracturing production increasing technology is a main production increasing measure for improving the yield of a single well of oil wells such as carbonate reservoirs and complex lithologic reservoirs, and is also an effective measure for reducing the injection pressure and increasing the water injection quantity of a water injection well. The acid liquor is injected into the stratum, and the acid liquor can dissolve the plug in the seepage passage or manufacture artificial cracks to reduce the leakage resistance, increase the stratum permeability and improve the recovery ratio of the oil-gas well. Hydrochloric acid with the concentration of 5-28 wt% is used for acidizing a carbonate reservoir, and the high-concentration acid liquor can cause serious corrosion to oil and gas well pipes and underground equipment by injection, so that the pipes can be tripped and suddenly fractured, and production accidents and serious economic losses can be caused. The main means of the existing oil well acid fracturing corrosion prevention is to add an acid fracturing corrosion inhibitor, and the corrosion inhibitor has the characteristics of low cost, simplicity in operation, quick response, capability of protecting the whole equipment, suitability for long-term protection and the like.
The acid fracturing corrosion inhibitor compounds disclosed and used in the patents of oil clothing companies at home and abroad at present are mainly three types of Mannich bases, quaternary ammonium salts and unsaturated aldehydes and ketones.
The document "synthesis and performance evaluation of a Mannich base acid-fracturing corrosion inhibitor" discloses a method for synthesizing a Mannich base type acid-fracturing corrosion inhibitor. Patent CN103666566A discloses a preparation method of a petroleum corrosion inhibitor, which comprises the steps of firstly, sequentially adding raw materials containing imidazoline ester, organic amine, tridecyl succinic acid, ethanol and phosphate ester into a high-temperature reaction kettle, stirring to obtain a solution, and then reacting the cooled solution with methyl benzotriazole to obtain the petroleum corrosion inhibitor. The corrosion inhibitor has the corrosion inhibition rate of over 90 percent, is nontoxic and environment-friendly, and has low cost. The patent CN103896877A discloses a preparation method of a low-toxicity Mannich base acidizing corrosion inhibitor, which is to compound a Mannich acidizing corrosion inhibitor main agent, an organic solvent, a surfactant, a corrosion inhibition auxiliary agent and a solvent to obtain the Mannich acidizing corrosion inhibitor. The corrosion inhibitor solves the problems of serious pollution, higher cost and unstable performance of the corrosion inhibitor product in the prior art. Patent CN103965849A discloses a corrosion inhibitor of 13Cr and 22Cr alloy oil pipe in strong acid and a preparation method thereof. The main component of the corrosion inhibitor is quinazoline-2-thion-5-one derivative with three-building and double bonds, belongs to a mixed corrosion inhibitor, has excellent performance, and can provide good protection for 13Cr and 22Cr of the super alloy pipe in the oil field.
At present, no report about the diene acid fracturing corrosion inhibitor exists. Therefore, the problem is that a new high-efficiency diene acid fracturing corrosion inhibitor is urgently needed to be researched and developed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a diene acid fracturing corrosion inhibitor and a preparation method thereof aiming at the defects of the prior art. The diene acid fracturing corrosion inhibitor comprises a diene compound shown as a general formula (I), a synergist and an optional wetting agent. The diene acid fracturing corrosion inhibitor provided by the invention is suitable for corrosion prevention and corrosion inhibition in an underground acid environment of acid fracturing construction of sandstone or carbonate reservoir oil and gas wells in an oil and gas development process, the corrosion inhibition performance reaches the first-level industrial standard, the corrosion speed of acid liquor on ground construction equipment and underground tools can be effectively reduced, the construction equipment and the underground tools are protected, and the construction risk is reduced.
To this end, the invention provides a diene acid fracturing corrosion inhibitor, which comprises a diene compound shown as a general formula (I) and a synergist;
in the general formula (I), Ar is selected from one or more of benzyl, phenyl, α -naphthyl, β -naphthyl, pyridyl and quinolyl;
R1is selected from H or C1-C8A straight chain hydrocarbon group of (1);
R2selected from H, CH2OH、CH2NH2、CH2NHCH3、CH2NHCH2CH3、CH2NHCH2CH2CH3、CH2NHCH2CH2CH2CH3、CH2NHCH2CH2CH2CH2CH3、CH2NH(CH2CH2O)nH and CH2NH(CH2CH2NH)nOne or more of H;
R3selected from H, C1-C5Straight chain hydrocarbon group of (C), (2CH2O)nH and (CH)2CH2NH)nOne or more of H;
x is selected from one or more of O, S, NH and PH.
In some embodiments of the invention, the allene-type compound of formula (I) comprises one or more of 2-hydroxymethyl-4-phenyl-2, 3-diene butanol, 2-hydroxymethyl-4-phenyl-2, 3-diene N-methylbutylamine, 2-hydroxymethyl-4- (1-naphthyl) -2, 3-diene butanol, 2-hydroxymethyl-4- (2-naphthyl) -2, 3-diene butanol, 2-mercapto-4-phenyl-2, 3-diene N-methylbutylamine.
According to the invention, the amount of the diene-type compound of the general formula (I) is from 10% by weight to 50% by weight, preferably from 30% by weight to 40% by weight, based on the total weight of the corrosion inhibitor.
According to the invention, the synergist is present in an amount of 10 wt% to 35 wt%, preferably 15 wt% to 25 wt%, based on the total weight of the corrosion inhibitor.
In some embodiments of the invention, the synergist is selected from one or more of formic acid, propiolic alcohol, potassium iodide, cuprous chloride, antimony trioxide, bismuth trichloride, acetophenone, aniline, cinnamaldehyde, benzylpyridinium chloride, naphthylmethyl quinolinium chloride, dodecylpyridinium bromide, and dodecylquinolinium bromide.
According to the invention, the diene acid fracturing corrosion inhibitor further comprises a wetting agent, wherein the wetting agent is an optional added component, and the content of the wetting agent is less than or equal to 15 wt%, and preferably 5 wt% -10 wt%, based on the total weight of the corrosion inhibitor.
In some embodiments of the invention, the wetting agent is selected from peregal O-10 (C)12-C18Fatty alcohol polyoxyethylene (10) ether), peregal O-15 (C)12-C18Fatty alcohol polyoxyethylene (15) ether), peregal O-20, (C)12-C18Fatty alcohol polyoxyethylene (20) ether), OP-10 (nonylphenol polyoxyethylene (10) ether), OP-15 (nonylphenol polyoxyethylene (15) ether), OP-20 (nonylphenol polyoxyethylene (20) ether), Tween-20 (polyoxyethylene (20) sorbitan)Sugar alcohol monolaurate), Tween-60 (polyoxyethylene (60) sorbitan monolaurate) and Tween-80 (polyoxyethylene (80) sorbitan monolaurate).
In a second aspect, the present invention provides a method for preparing the diene acid fracturing corrosion inhibitor according to the first aspect, which comprises:
a, uniformly mixing a diene compound shown as a general formula (I) with an organic solvent to prepare a mixed solution;
and step B, uniformly mixing the mixed solution with a synergist and an optional wetting agent to prepare the allene-type acid fracturing corrosion inhibitor.
In some embodiments of the invention, the organic solvent is selected from one or more of ethanol, methanol, ethylene glycol, 1, 2-propanediol, 1, 3-propanediol, glycerol, and isopropanol.
In a third aspect, the invention provides a use of the diene acid fracturing corrosion inhibitor according to the first aspect or the diene acid fracturing corrosion inhibitor prepared by the method according to the second aspect in an acid fracturing environment of an oil and gas well; in the acid fracturing environment of the oil and gas well, the pressure of the carbon dioxide is 0.1-5.0MPa, preferably 0.5-1.5 MPa.
The term "mass concentration" as used herein means the same as the mass content (or weight content).
The allene acid fracturing corrosion inhibitor provided by the invention comprises an allene compound shown in a general formula (I), wherein the compound comprises a plurality of heteroatom groups, the coordination adsorption capacity of the compound on the metal surface is superior to that of the existing general monodentate corrosion inhibitor compound, the aryl end of the compound can generate pi-pi accumulation effect, and an ordered hydrophobic layer is preferentially arranged on the metal surface; the unsaturated functional group can be subjected to in-situ polymerization on the alloy surface in a strong acid environment to form a compact protective film, so that the active dissolution of a metal anode is prevented, the hydrogen evolution resistance of a cathode is increased, and the corrosion inhibitor has a good corrosion inhibition effect and is a novel efficient corrosion inhibitor. The corrosion inhibitor is suitable for the underground acidic environment corrosion prevention and corrosion inhibition of acid fracturing construction of sandstone or carbonate reservoir oil and gas wells in the oil and gas development process, the corrosion inhibition performance reaches the first-level industrial standard, the corrosion speed of acid liquor on ground construction equipment and underground tools can be effectively reduced, the construction equipment and the underground tools are protected, and the construction risk is reduced.
Detailed Description
In order that the present invention may be more readily understood, the following detailed description of the invention is given by way of example only, and is not intended to limit the scope of the invention.
The invention adopts instruments and methods used in SY/T5405-1996 acidizing corrosion inhibitor performance test method and evaluation index to evaluate the corrosion inhibition performance of the acid fracturing corrosion inhibitor.
Examples
Example 1: preparation of 2-hydroxymethyl-4-phenyl-2, 3-diene butanol
(1) Dissolving 10mmol of phenylacetyl chloride in 50mL of tetrahydrofuran at 0 ℃, sequentially adding 13mmol of triethylamine and 15mmol of 3-acetoxyl-2-triphenylphosphine ylide methyl propionate, uniformly stirring, reacting at room temperature for 12h, concentrating the system, and separating by column chromatography to obtain an intermediate product 2-acetoxyl methyl-4-phenyl-2, 3-diene methyl butyrate 2.1g, wherein the yield is 85%.
(2) Dissolving 6.0mmol of intermediate 2-acetoxymethyl-4-phenyl-2, 3-diene methyl butyrate in 60mL of toluene, dropwise adding 22mmol of diisobutylaluminum hydride solution (1M hexane) at 0 ℃, after 15min of dropwise addition, heating to room temperature for reaction for 6h, sequentially adding 60mL of saturated sodium potassium tartrate aqueous solution and 50mL of water, stirring for 30min, separating out the water phase, extracting with 50mL of diethyl ether for 2 times respectively, combining the organic phases, concentrating, and purifying by column chromatography to obtain 0.87g of allene-type compound 2-hydroxymethyl-4-phenyl-2, 3-diene butanol, wherein the yield is 82%.
Example 2: preparation of 2-hydroxymethyl-4-phenyl-2, 3-diene N-methylbutylamine
(1) Dissolving 10mmol of phenylacetyl chloride in 50mL of tetrahydrofuran at 0 ℃, sequentially adding 15mmol of triethylamine and 13mmol of 3-acetoxyl-2-triphenylphosphine ylide N-methylpropionamide, uniformly stirring, reacting at room temperature for 12h, concentrating the system, and performing column chromatography separation to obtain an intermediate product, namely 1.91g of 2-acetoxyl methyl-4-phenyl-2, 3-diene N-methylbutanamide, wherein the yield is 78%;
(2) dissolving 5.0mmol of intermediate product 2-acetoxymethyl-4-phenyl-2, 3-diene N-methylbutylamine in 50mL of toluene, dropwise adding 12.5mmol of diisobutylaluminum hydride solution (1M hexane) at 0 ℃, after dropwise addition for 10-15min, heating to room temperature for reaction for 4-6h, sequentially adding 50mL of saturated sodium potassium tartrate aqueous solution and 50mL of water, stirring for 30min, separating out an aqueous phase, extracting with 30mL of diethyl ether for 2 times respectively, combining organic phases, concentrating, and purifying by column chromatography to obtain 0.71g of allene type compound 2-hydroxymethyl-4-phenyl-2, 3-diene N-methylbutylamine with the yield of 81%.
Example 3
The allene-type compound 2-hydroxymethyl-4-phenyl-2, 3-diene butanol prepared in example 1 was dissolved in ethanol to prepare a solution with a mass concentration of 30 wt%, and then a mixed synergist of propargyl alcohol with a mass concentration of 20 wt% and antimony trioxide with a mass concentration of 5 wt% was added thereto to prepare the allene-type acid fracturing corrosion inhibitor a.
The appearance and compatibility of the prepared allene acid fracturing corrosion inhibitor A are evaluated by a SY/T5405-1996 test method and evaluation index for the performance of the corrosion inhibitor for acidification, and the results are shown in Table 1.
The corrosion inhibition performance of the acid fracturing corrosion inhibitor prepared above is evaluated (the evaluation conditions are shown in table 2), and the results are shown in table 2.
Examples 4 to 5
The divinyl compound 2-hydroxymethyl-4-phenyl-2, 3-diene N-methylbutylamine prepared in example 2 is dissolved in ethanol to prepare a solution with the mass concentration of 40 wt%, and then a mixed synergist of propargyl alcohol with the mass concentration of 25 wt% and potassium iodide with the mass concentration of 10 wt% is added into the solution to prepare the divinyl acid corrosion inhibitor B.
The appearance and compatibility of the prepared allene-type acid fracturing corrosion inhibitor B are evaluated by a SY/T5405-1996 test method and evaluation index for the performance of the corrosion inhibitor, and the results are shown in Table 1.
The corrosion inhibition performance of the prepared acid fracturing corrosion inhibitor under different conditions is evaluated (the evaluation conditions are shown in table 2), and the results are shown in table 2.
Comparative example 1
The divinyl compound 2-hydroxymethyl-4-phenyl-2, 3-diene N-methylbutylamine prepared in example 2 is dissolved in ethanol to prepare a solution with the mass concentration of 8 wt%, and then a mixed synergist of propiolic alcohol with the mass concentration of 15 wt% and potassium iodide with the mass concentration of 10 wt% is added into the solution to prepare the divinyl acid corrosion inhibitor C.
The appearance and compatibility of the prepared allene acid fracturing corrosion inhibitor C are evaluated by a SY/T5405-1996 test method and evaluation index for the performance of the corrosion inhibitor, and the results are shown in Table 1.
The corrosion inhibition performance of the acid fracturing corrosion inhibitor prepared above is evaluated (the evaluation conditions are shown in table 2), and the results are shown in table 2.
TABLE 1 physical Properties of the diene-type acid fracturing corrosion inhibitors
| Sample source | Appearance of the product | Compatibility of medicines |
| A | Colourless liquid | 20 wt% HCl transparent, non-delaminating and precipitate-free |
| B | Colourless liquid | 20 wt% HCl transparent, non-delaminating and precipitate-free |
| C | Colourless liquid | 20 wt% HCl transparent, non-delaminating and precipitate-free |
TABLE 2 evaluation results of corrosion inhibition performance of the diene acid fracturing corrosion inhibitor
As can be seen from the data in Table 2, compared with comparative example 1, the allene-type acid fracturing corrosion inhibitor prepared in examples 3-5 of the invention is applied to the corrosion prevention and corrosion inhibition in the underground acidic environment of acid fracturing construction of sandstone or carbonate reservoir oil and gas wells in the oil and gas development process, the corrosion inhibition performance reaches the first-class industrial standard, the corrosion speed of acid liquid on ground construction equipment and underground tools can be effectively reduced, the construction equipment and the underground tools are protected, and the construction risk is reduced.
It should be noted that the above-mentioned embodiments are only for explaining the present invention, and do not constitute any limitation to the present invention. The present invention has been described with reference to exemplary embodiments, but the words which have been used herein are words of description and illustration, rather than words of limitation. The invention can be modified, as prescribed, within the scope of the claims and without departing from the scope and spirit of the invention. Although the invention has been described herein with reference to particular means, materials and embodiments, the invention is not intended to be limited to the particulars disclosed herein, but rather extends to all other methods and applications having the same functionality.
Claims (11)
1. A diene acid fracturing corrosion inhibitor, which comprises a diene compound shown as a general formula (I) and a synergist;
in the general formula (I), Ar is selected from one or more of benzyl, phenyl, α -naphthyl, β -naphthyl, pyridyl and quinolyl;
R1is selected from H or C1-C8A straight chain hydrocarbon group of (1);
R2selected from H, CH2OH、CH2NH2、CH2NHCH3、CH2NHCH2CH3、CH2NHCH2CH2CH3、CH2NHCH2CH2CH2CH3、CH2NHCH2CH2CH2CH2CH3、CH2NH(CH2CH2O)nH and CH2NH(CH2CH2NH)nOne or more of H;
R3selected from H, C1-C5Straight chain hydrocarbon group of (C), (2CH2O)nH and (CH)2CH2NH)nOne or more of H;
x is selected from one or more of O, S, NH and PH;
the synergist is selected from one or more of formic acid, propiolic alcohol, potassium iodide, cuprous chloride, antimony trioxide, bismuth trichloride, acetophenone, aniline, cinnamaldehyde, benzyl pyridine chloride, naphthalene methyl quinoline chloride, dodecyl pyridine bromide and dodecyl quinoline bromide;
the content of the diene compound shown in the general formula (I) is 10 to 50 weight percent based on the total weight of the corrosion inhibitor,
the content of the synergist is 10 wt% -35 wt% based on the total weight of the corrosion inhibitor.
2. The inhibitor for acid fracturing of the diene type according to claim 1, wherein the diene type compound represented by the general formula (I) comprises one or more of 2-hydroxymethyl-4-phenyl-2, 3-diene butanol, 2-hydroxymethyl-4-phenyl-2, 3-diene N-methylbutylamine, 2-hydroxymethyl-4- (1-naphthyl) -2, 3-diene butanol, 2-hydroxymethyl-4- (2-naphthyl) -2, 3-diene butanol, 2-mercapto-4-phenyl-2, 3-diene N-methylbutylamine.
3. The diene-type acid fracturing corrosion inhibitor according to claim 1 or 2, wherein the diene-type compound represented by the general formula (I) is contained in an amount of 30 wt% to 40 wt% based on the total weight of the corrosion inhibitor.
4. The diene-type acid fracturing corrosion inhibitor according to claim 1 or 2, characterized in that the content of the synergist is 15 to 25 wt. -%, based on the total weight of the corrosion inhibitor.
5. The diene-type acid fracturing corrosion inhibitor of claim 1 or 2, wherein the diene-type acid fracturing corrosion inhibitor further comprises a wetting agent; the content of the wetting agent is less than or equal to 15 wt% based on the total weight of the corrosion inhibitor.
6. The diene-type acid fracturing corrosion inhibitor of claim 5, wherein the wetting agent is present in an amount of from 5 wt% to 10 wt%, based on the total weight of the corrosion inhibitor.
7. The divinyl acid type acid fracturing corrosion inhibitor of claim 5 wherein said wetting agent is selected from one or more of peregal O-10, peregal O-15, peregal O-20, OP-10, OP-15, OP-20, Tween-60 and Tween-80.
8. A process for preparing the divinyl acid corrosion inhibitor of any one of claims 1 to 7, comprising:
a, uniformly mixing a diene compound shown as a general formula (I) with an organic solvent to prepare a mixed solution;
and step B, uniformly mixing the mixed solution with a synergist and an optional wetting agent to prepare the allene-type acid fracturing corrosion inhibitor.
9. The method according to claim 8, wherein the organic solvent is one or more selected from the group consisting of ethanol, methanol, ethylene glycol, 1, 2-propanediol, 1, 3-propanediol, glycerol, and isopropanol.
10. Use of the diene-type acid fracturing corrosion inhibitor according to any one of claims 1 to 7 or the acid fracturing corrosion inhibitor prepared by the method according to claim 8 or 9 in an acid fracturing environment of an oil and gas well; in the acid fracturing environment of the oil and gas well, the pressure of the carbon dioxide is 0.1-5.0 MPa.
11. The use according to claim 10, wherein the pressure of carbon dioxide in the acid fracturing environment of the oil and gas well is 0.5-1.5 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610875322.XA CN107880864B (en) | 2016-09-30 | 2016-09-30 | Diene acid fracturing corrosion inhibitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610875322.XA CN107880864B (en) | 2016-09-30 | 2016-09-30 | Diene acid fracturing corrosion inhibitor and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107880864A CN107880864A (en) | 2018-04-06 |
| CN107880864B true CN107880864B (en) | 2020-06-23 |
Family
ID=61769212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610875322.XA Active CN107880864B (en) | 2016-09-30 | 2016-09-30 | Diene acid fracturing corrosion inhibitor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107880864B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680280A (en) * | 2019-01-09 | 2019-04-26 | 江苏蓝电环保股份有限公司 | A kind of organic amine flue gas desulfurization corrosion inhibiter and its application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929290A (en) * | 1996-01-30 | 1999-07-27 | Asahi Denka Kogyo K. K. | Compound and surfactant |
| JP2000313872A (en) * | 1999-04-27 | 2000-11-14 | Toho Chem Ind Co Ltd | Method for decreasing in-pipe friction resistance of water-based heat transfer medium |
| CN101619016A (en) * | 2009-07-30 | 2010-01-06 | 浙江大学 | Method for synthesizing polysubstitution 3-phenyl-1-naphthol |
| CN103468238A (en) * | 2013-09-16 | 2013-12-25 | 陕西延长石油(集团)有限责任公司研究院 | Preparation method and application of novel high-efficient acidification corrosion inhibitor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299453A (en) * | 1993-01-28 | 1994-04-05 | Mobil Oil Corporation | Method for determining oil and water saturation of core samples at overburden pressure |
| US6929070B2 (en) * | 2001-12-21 | 2005-08-16 | Schlumberger Technology Corporation | Compositions and methods for treating a subterranean formation |
| CN102746838B (en) * | 2011-04-22 | 2014-01-15 | 中国石油天然气股份有限公司 | Blocking remover of gas well shaft |
-
2016
- 2016-09-30 CN CN201610875322.XA patent/CN107880864B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929290A (en) * | 1996-01-30 | 1999-07-27 | Asahi Denka Kogyo K. K. | Compound and surfactant |
| JP2000313872A (en) * | 1999-04-27 | 2000-11-14 | Toho Chem Ind Co Ltd | Method for decreasing in-pipe friction resistance of water-based heat transfer medium |
| CN101619016A (en) * | 2009-07-30 | 2010-01-06 | 浙江大学 | Method for synthesizing polysubstitution 3-phenyl-1-naphthol |
| CN103468238A (en) * | 2013-09-16 | 2013-12-25 | 陕西延长石油(集团)有限责任公司研究院 | Preparation method and application of novel high-efficient acidification corrosion inhibitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107880864A (en) | 2018-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107418549B (en) | Composite acidizing corrosion inhibitor capable of resisting temperature of 120-140 DEG C | |
| CN107418548B (en) | Pyridine derivative and Mannich base composite high-temperature acidizing corrosion inhibitor | |
| CN102031526A (en) | Low-temperature acidification corrosion inhibitor and preparation method thereof | |
| WO2020093444A1 (en) | Method for preparing mannich base quaternary ammonium salt-based high temperature resistant acidizing corrosion inhibitor and use of same | |
| CN105568292A (en) | Alkyl pyridinium quaternary ammonium salt corrosion inhibitor used for inhibiting carbon dioxide corrosion and preparation method thereof | |
| CN103555313A (en) | Imidazolium salt ionic liquid acidizing corrosion inhibitor as well as preparation method and application thereof | |
| CN110283581B (en) | Acidizing corrosion inhibitor suitable for high temperature of above 160 DEG C | |
| CN110577829A (en) | Cinnamaldehyde Schiff base acidizing corrosion inhibitor, preparation and use method | |
| CN103469211B (en) | A kind of Polymeric imidazoline corrosion inhibitor and preparation method thereof | |
| CN109336851B (en) | four-Schiff base acidizing corrosion inhibitor and preparation method and application thereof | |
| CN107880864B (en) | Diene acid fracturing corrosion inhibitor and preparation method thereof | |
| CN114990556A (en) | Efficient corrosion inhibitor applied to lactic acid corrosion condition | |
| CN107418547B (en) | High-temperature acidizing corrosion inhibitor based on tribenzyl- (2-benzyl) pyridinium ammonium chloride | |
| JPS5950839B2 (en) | How to use betaine for oil recovery | |
| CN103289670B (en) | A kind of Polymer corrosion inhibitor and preparation method thereof | |
| CN105238379B (en) | A kind of long-acting corrosion inhibiter of acidification of gas well and its preparation method and application method | |
| Afra et al. | NMR Investigation of Viscoelastic Surfactant Compatibility with Corrosion Inhibitors | |
| CN111777608B (en) | Novel plant modified quinoline quaternary ammonium salt compound, preparation method and application | |
| CN110699692A (en) | Double-condensation Schiff base acidizing corrosion inhibitor, preparation method and application thereof | |
| CN102559167A (en) | Novel preparation method of schiff base oil well acidification corrosion inhibitor and application of preparation method | |
| CN115785932B (en) | Lactic acid acidification corrosion inhibitor and preparation method thereof | |
| CN115612473B (en) | High-temperature-resistant acidizing corrosion inhibitor, preparation method and application thereof, and corrosion-inhibiting acidizing fracturing fluid | |
| CN115404065B (en) | High-temperature-resistant acidification corrosion inhibitor and application thereof | |
| CN111732948B (en) | Composite acid composition for improving corrosion rate of downhole pipe column and manufacturing method thereof | |
| CN113136188B (en) | Mannich base metal complex corrosion inhibitor, preparation method and use method |
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 |