Corrosion inhibitor intensifier compositions and associated methods
Many methods are presented herein including a method comprising: providing a metal surface; and contacting the metal surface with a treatment fluid comprising an aqueous base fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising a corrosion inhibitor compound that corresponds to a formula: PR1R2R3, wherein R1, R2, and R3 are chosen from the group consisting of C 1 -C 20 alkyl, cycloalkyl, oxyalkyl, and aryl groups, and R1, R2, and R3 may or may not be equal. Corrosion inhibitor intensifier compositions also are provided.
1. A method comprising:
providing a metal surface within a well bore that penetrates a subterranean formation; and
contacting the metal surface with a treatment fluid comprising an aqueous base fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising a surface active corrosion inhibitor compound that corresponds to a formula: PR 1 R 2 R 3 , wherein R 1 , R 2 , and R 3 are chosen from the group consisting of C 1 -C 20 alkyl, cycloalkyl, oxyalkyl, and aryl groups, and R 1 , R 2 , and R 3 may or may not be equal; wherein the corrosion inhibitor is selected from the group consisting of: an acetylenic compound, 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; α-methylcinnamaldehyde; (β-methylcinnamaldehyde; α-chlorocinnamaldehyde; α-bromocinnamaldehyde; α-butylcinnamaldehyde; α-amylcinnamaldehyde; α-hexylcinnamaldehyde; α-bromo-p-cyanocinnamaldehyde; α-ethyl-p-methylcinnamaldehyde; p-methyl-α-pentylcinnamaldehyde; cinnamaloxime; cinnamonitrile; 5-phenyl-2,4-pentadienal; 7-phenyl-2,4,6-heptatrienal; and mixtures thereof; and,
wherein corrosion of at least a portion of the metal surface is inhibited.
2. The method of claim 1 wherein the corrosion inhibitor intensifier composition is triphenylphosphine, triethylphosphine, or trimethylphosphine.
3. The method of claim 1 wherein the concentration of the corrosion inhibitor is about zero.
4. The method of claim 1 wherein the acid comprises one of the following acids selected from the group consisting of: hydrochloric acid; hydrofluoric acid; acetic acid; formic acid; organic acids; mineral acids; formic acid; acetic acid; citric acid; glycolic acid; hydroxyacetic acid; lactic acid; hydrofluoric acid; 3-hydroxypropionic acid; carbonic acid; ethylenediaminetetraacetic acid; mixtures of these acids; and blends of these acids.
5. The method of claim 1 wherein the corrosion inhibitor comprises a blend of a reaction product that is the product of a reaction of effective amounts of an active hydrogen containing compound with an organic carbonyl compound having at least one hydrogen atom on the carbon atom alpha to the carbonyl group and a fatty acid or other fatty compound or alkyl nitrogen heterocycles and preferably 2 or 4 alkyl substituted and an aldehyde.
6. The method of claim 1 wherein the treatment fluid comprises an additive chosen from the group consisting of: gel stabilizers; salts; fluid loss control additives; surfactants; solvents; scale inhibitors; organic corrosion inhibitors; catalysts; clay stabilizers; biocides; bactericides; friction reducers; gases; foaming agents; iron control agents; solubilizers; pH adjusting agents; buffers; and combinations thereof.
7. The method of claim 1 wherein the treatment fluid is foamed.
8. The method of claim 1 wherein the treatment fluid is introduced into the subterranean formation as part of an acidizing treatment.
9. A method comprising:
providing a metal surface; and
contacting the metal surface with a treatment fluid comprising an aqueous base fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising a surface active corrosion inhibitor compound that corresponds to a formula: PR 1 R 2 R 3 , wherein R 1 , R 2 , and R 3 are chosen from the group consisting of C 1 -C 20 alkyl, cycloalkyl, oxyalkyl, and aryl groups, and R 1 , R 2 , and R 3 may or may not be equal; wherein the corrosion inhibitor is selected from the group consisting of: an acetylenic compound, 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; α-methylcinnamaldehyde; (β-methylcinnamaldehyde; α-chlorocinnamaldehyde; α-bromocinnamaldehyde; α-butylcinnamaldehyde; α-amylcinnamaldehyde; α-hexylcinnamaldehyde; α-bromo-p-cyanocinnamaldehyde; α-ethyl-p-methylcinnamaldehyde; p-methyl-α-pentylcinnamaldehyde; cinnamaloxime; cinnamonitrile; 5-phenyl-2,4-pentadienal; 7-phenyl-2,4,6-heptatrienal; and mixtures thereof; and,
wherein corrosion of at least a portion of the metal surface is inhibited.
10. The method of claim 9 wherein the corrosion inhibitor intensifier composition is triphenylphosphine, triethylphosphine, or trimethylphosphine.
11. The method of claim 9 wherein the concentration of the corrosion inhibitor is about zero.
12. The method of claim 9 wherein the acid comprises one of the following acids selected from the group consisting of: hydrochloric acid; hydrofluoric acid; acetic acid; formic acid; organic acids; mineral acids; formic acid; acetic acid; citric acid; glycolic acid; hydroxyacetic acid; lactic acid; hydrofluoric acid; 3-hydroxypropionic acid; carbonic acid; ethylenediaminetetraacetic acid; mixtures of these acids; and blends of these acids.
13. The method of claim 9 wherein the corrosion inhibitor comprises a blend of a reaction product that is the product of a reaction of effective amounts of an active hydrogen containing compound with an organic carbonyl compound having at least one hydrogen atom on the carbon atom alpha to the carbonyl group and a fatty acid or other fatty compound or alkyl nitrogen heterocycles and preferably 2 or 4 alkyl substituted and an aldehyde.
14. The method of claim 9 wherein the treatment fluid comprises an additive chosen from the group consisting of: gel stabilizers; salts; fluid loss control additives; surfactants; solvents; scale inhibitors; organic corrosion inhibitors; catalysts; clay stabilizers; biocides; bactericides; friction reducers; gases; foaming agents; iron control agents; solubilizers; pH adjusting agents; buffers; and combinations thereof.
15. A method comprising:
providing an acidic fluid that comprises a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising a surface active corrosion inhibitor compound that corresponds to a formula: PR 1 R 2 R 3 , wherein R 1 , R 2 , and R 3 are chosen from the group consisting of C 1 -C 20 alkyl, cycloalkyl, oxyalkyl, and aryl groups, and R 1 , R 2 , and R 3 may or may not be equal; and, wherein the corrosion inhibitor is selected from the group consisting of selected from the group consisting of: an acetylenic compound, 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; α-methylcinnamaldehyde; (β-methylcinnamaldehyde; α-chlorocinnamaldehyde; α-bromocinnamaldehyde; α-butylcinnamaldehyde; α-amylcinnamaldehyde; α-hexylcinnamaldehyde; α-bromo-p-cyanocinnamaldehyde; α-ethyl-p-methylcinnamaldehyde; p-methyl-α-pentylcinnamaldehyde; cinnamaloxime; cinnamonitrile; 5-phenyl-2,4-pentadienal; 7-phenyl-2,4,6-heptatrienal; and mixtures thereof; and,
contacting a metal surface within a wellbore with the surface active corrosion inhibitor composition whereby the corrosion inhibitor intensifier enhances the effectiveness of the corrosion inhibitor over the effectiveness of the corrosion inhibitor alone and wherein corrosion of at least a portion of the metal surface is inhibited.
16. The method of claim 15 wherein the corrosion inhibitor intensifier composition compound is triphenylphosphine, triethylphosphine, or trimethylphosphine.
17. The method of claim 1 wherein the acid comprises one of the following acids selected from the group consisting of: hydrochloric acid; hydrofluoric acid; acetic acid; formic acid; organic acids; mineral acids; formic acid; acetic acid; citric acid; glycolic acid; hydroxyacetic acid; lactic acid; hydrofluoric acid; 3-hydroxypropionic acid; carbonic acid; ethylenediaminetetraacetic acid; mixtures of these acids; and blends of these acids.
18. The method of claim 15 wherein the treatment fluid comprises an additive chosen from the group consisting of: gel stabilizers; salts; fluid loss control additives; surfactants; solvents; scale inhibitors; organic corrosion inhibitors; catalysts; clay stabilizers; biocides; bactericides; friction reducers; gases; foaming agents; iron control agents; solubilizers; pH adjusting agents; buffers; and combinations thereof.
19. The method of claim 15 wherein the acidic fluid is foamed.