Corrosion inhibitor compositions and methods of using the compositions to inhibit corrosion
US-2024376608-A1 · Nov 14, 2024 · US
US11066749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11066749-B2 |
| Application number | US-202016780488-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 3, 2020 |
| Priority date | May 27, 2015 |
| Publication date | Jul 20, 2021 |
| Grant date | Jul 20, 2021 |
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
What the patent document calls the invention.
A short plain-language summary of the technical disclosure.
Who owns or filed the patent and who is credited as inventor.
Filing, priority, publication, and grant dates set the timeline.
The legal scope of protection — read this for what is actually claimed.
Technology tags used to group this patent with similar filings.
Prior art links and similar publications in this corpus.
Official abstract text for this publication.
A method of treating in a subterranean formation including placing a corrosion inhibitor composition into a subterranean formation, where the formation includes an acidic environment having a pH of about 5 or below, where the composition includes: an organic solvent comprising an alcohol with a flash point of at least about 75° C.; a nitrogen containing compound; an aqueous acid solution comprising HCl; and contacting a metal surface with the corrosion inhibitor composition. A corrosion inhibitor composition includes an organic solvent comprising an alcohol with a flash point of at least about 75° C.; a nitrogen containing compound; and an aqueous acid solution comprising HCl.
Opening claim text (preview).
What is claimed is: 1. A corrosion inhibitor composition comprising: an organic solvent comprising tetrahydrofurfuryl alcohol; a nitrogen containing compound, wherein the nitrogen containing compound includes at least one of: the product of a reaction between at least one aldehyde and at least one amide that is not formamide or a formamide derivative; a quaternary nitrogen containing compound; and combinations thereof, and an aqueous acid solution comprising HCl. 2. The composition of claim 1 , wherein the organic solvent is present in an amount of about 5% to about 100% by weight of the aqueous acid solution. 3. The composition of claim 1 , wherein the at least one aldehyde comprises at least one aldehyde selected from the group consisting of 2-hydroxynapthaldehyde, 7-phenyl-2,4,6-heptatrienal, crotonaldehyde, 2-hexenal, 2-heptenal, 2-octenal; 2-nonenal, 2-decenal, 2-undecenal, 2-dodecenal, 2,4-hexadienal, 2,4-heptadienal, 2,4-octadienal, 2,4-nonadienal, 2,4-decadienal, 2,4-undecadienal, 2,4-dodecadienal, 2,6-dodecadienal, citral, 1-formyl-[2-(2 methylvinyl)]-2-n-octylethylene, cinnamaldehyde, dicinnamaldehyde, p-hydroxycinnamaldehyde, p-methylcinnamaldehyde, p-ethylcinnamaldehyde, p-methoxycinnamaldehyde, p-dimethylaminocinnamaldehyde, p-diethylaminocinnamaldehyde, p-nitrocinnamaldehyde, o-nitrocinnamaldehyde, o-allyloxycinnamaldehyde, 4-(3-propenal)cinnamaldehyde, p-sodium sulfocinnamaldehyde, p-trimethylammoniumcinnamaldehyde sulfate, p-trimethylammoniumcinnamaldehyde o-methylsulfate, p-thiocyanocinnamaldehyde, p-(S-acetyl)thiocinnamaldehyde, p-(S—N,N dimethylcarbamoylthio)cinnamaldehyde, p-chlorocinnamaldehyde, 5-phenyl-2,4-pentadienal, 5-(p-methoxyphenyl)-2,4-pentadienal, 2,3-diphenylacrolein, 3,3-diphenylacrolein, α-methylcinnamaldehyde, β-methylcinnamaldehyde, α-chlorocinnamaldehyde, α-bromocinnamaldehyde, α-butylcinnamaldehyde, α-amylcinnamaldehyde, α-hexylcinnamaldehyde, 2-(p-methylbenzylidine)decanal, α-bromo-p-cyanocinnamaldehyde, α-ethyl-p-methylcinnamaldehyde, p-methyl-α-pentylcinnamaldehyde, 3,4-dimethoxy-α-methylcinnamaldehyde, α-[(4-methylphenyl)methylene]benzeneacetaldehyde, α-(hydroxymethylene)-4-methylbenzylacetaldehyde, 4-chloro-α-(hydroxymethylene)benzeneacetaldehyde, α-nonylidenebenzeneacetaldehyde, 3,7-dimethyl-2,6-octadienal, cinnamaloxime, cinnamonitrile, and beta-hydroxy aldehydes which dehydrate to form alpha,beta-unsaturated aldehydes under acidic conditions, glyoxylic acid, glyoxal, and combinations thereof. 4. The composition of claim 1 , wherein the at least one amide comprises at least one amide selected from the group consisting of acetamide, N-methylacetamide, trichloroacetamide, N-methyltrichloroacetamide, propanamide, N-methylpropanamide, butanamide, N-methylbutanamide, pentanamide, N-methylpentanamide, hexanamide, N-methylhexanamide, benzamide, N-methylbenzamide, 1-naphthylamide, N-methyl-1-naphthylamide, 2-naphthylamide, N-methyl-2-naphthylamide, o-toluamide, N-methyl-o-toluamide, m-toluamide, N-methyl-m-toluamide, p-toluamide, N-methyl-ptoluamide, thiobenzamide, 4-pyridinethioamide, ethionamide, pyrazine-2-thiocarboxamide, nicotinamide, stearamide, 2,2-diethoxyacetamide and lauric acid amide, amides derived from primary or secondary amines, and combinations thereof. 5. The composition of claim 4 , wherein said primary or secondary amine is selected from the group consisting of ethanolamine, diethanolamine, partially ethoxylated dehydroabietylamine, ethylamine, diethylamine, dehydroabietylamine, propylamine, dipropylamine, propanolamine, isopropanolamine, 2-propanol-1-amine, diisopropanolamine, butylamine, dibutylamine, tert-butylamine, pentylamine, dipentylamine, tert-benzyl-tert-butylamine, 3,4-diaminofuran, 2,4-diamino-6-phenyl-1,3,5-triazine, 2,4-diamino-6-methyl-1,3,5-triazine, 2,4 diamino-6,-hydroxy-1,3, 5-triazine, 2,4-diamino-6-chloro-1,3,5-triazine, 2,5-diaminotoluene, 2,6-diamino pyridine, 2,6 diaminotoluene, 2,4-diaminotoluene, m-phenylenediamine, p-phenylenediamine, 4-methyl-m-phenylenediamine, 2,5 diaminotoluene sulfate, 2-methyl-1,3-benzenediamine, 5-chloro-1,3-phenylenediamine, 2,4,6-trimethyl-1,3-benzenediamine, 3,5-diaminobenzoic acid, 3-nitro-1,2-benzenediamine, 2-nitro-1,2-benzenediamine, 1,3-benzenediamine, 4-nitro-1,2-benzenediamine, 3-nitro-1,3-phenylenediamine, 2′,4′-diaminoacetanilide, N-(3-aminophenyl)butanamide, 2,4-diaminobenZenesulfonic acid, 4-ethoxy-1,3-phenylenediamine 2HCl, 2,4-bis(butylamino)-3-oxo-1-cyclobutenylium-1-olate, 2,4-bis(3-benzamidopropylamino) 3-oxo-1-cyclobutenylium-1-olate, 4-imino-5-methyl-2 nitramino-4H-imidazole, 2,5-diacetamido-1,3,4-thiadiazole, 5-amino-1,3,3-trimethylcyclohexanemethylamine and combinations thereof. 6. The composition of claim 1 , wherein the quaternary nitrogen containing compound comprises quaternized amino or amide containing compounds of molecular weight less than 1500 g/mol. 7. The composition of claim 1 , wherein the product of the reaction between at least one aldehyde and at least one amide comprises a compound with at least one the following structures: where R is H, methyl, ethyl, hydroxy, methoxy, ethoxy, bromo, chloro, fluoro, mercapto, dimethylamino, diethylamino groups, N-alkyl, N-cycloalkyl and N-alkylarylpyridinium halides, N-cyclohexylpyridinium bromide or chloride, N-alkyl, N-cycloalkyl, N-alkylarylquinolinium halides, N-dodecylquinolinium bromide or chloride, and combinations thereof. 8. The composition of claim 1 , wherein the aqueous acid solution further comprises at least one of formic acid, acetic acid, citric acid, glycolic acid, hydroxyacetic acid, lactic acid, maleic acid, hydrofluoric acid, 3-hydroxypropionic acid, carbonic acid, glutamic acid N,N-diacetic acid or a salt thereof (GLDA), hydroxyimino disuccinic acid (HIDS) and/or methylglycine N,N-diacetic acid or a salt thereof (MGDA), β-alanine diacetic acid, ethylenediaminedisuccinic acid, iminodisuccinic acid, N-tris[(1,2-dicarboxyethoxy)ethyl]amine, N-bis[2-(carboxymethoxy)ethyl]glycine, N-bis[2-(1,2-dicarboxyethoxy)ethyl]glycine, N-bis[2-(1,2-dicarboxyethoxy)ethyl]aspartic acid, N-bis[2-(methylcarboxymethoxy)ethyl]glycine, N-bis[2-(1,2-dicarboxyethoxy)ethyl]methylglycine, any salt thereof, any derivative thereof, and any combination thereof. 9. The composition of claim 1 , further comprising at least one of potassium iodide, sodium iodide, and combinations thereof. 10. The composition of claim 1 , further comprising at least one of ethylene glycol, diethylene glycol, propylene glycol, surfactants, and combinations thereof. 11. The composition of claim 10 , wherein the surfactants are selected from the group consisting of linear alcohol ethoxylates, amine alcohol ethoxylates, ethoxylated amides, ethoxylated alkyl amines, alkylphenol, alkyoxylated fatty acids, and combinations thereof.
Anticorrosion additives · CPC title
Liquid materials · CPC title
in markedly acid liquids · CPC title
combined with additives added for specific purposes · CPC title
Compositions for in situ inhibition of corrosion in boreholes or wells · CPC title
Related publications grouped by family.
Answers are generated from the same data shown on this page.