Alkyl lactone-derived corrosion inhibitors

Patent metadata

Field	Value
Publication number	US-12516237-B2
Application number	US-202217937569-A
Country	US
Kind code	B2
Filing date	Oct 3, 2022
Priority date	Jul 12, 2018
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

Disclosed are alkyl lactone-derived hydroxyamide and alkyl lactone-derived hydroxyester used in compositions and methods for inhibiting corrosion. The alkyl lactone-derived hydroxyamide and alkyl lactone-derived hydroxyester are reaction products of an alkyl lactone and an amine, and an alkyl lactone and an alcohol, respectively.

First claim

What is claimed is:

1 . An oil or gas pipeline comprising:
a fluid source in contact with the oil or gas pipeline, wherein the fluid source comprises a corrosion inhibitor composition comprising: a first compound having the structure

a second compound having the structure

a third compound having the structure

or combinations thereof.

2 . The oil or gas pipeline of claim 1 , wherein the fluid source further comprises a liquid hydrocarbon, gas, produced water, or injectate.

3 . The oil or gas pipeline of claim 2 , wherein the fluid source further comprises the liquid hydrocarbon, wherein the liquid hydrocarbon comprises oil.

4 . The oil or gas pipeline of claim 2 , wherein the fluid source further comprises hydrogen sulfide, carbon dioxide, oxygen, sodium chloride, calcium chloride, sulfur dioxide, or combinations thereof.

5 . The oil or gas pipeline of claim 1 , wherein the corrosion inhibitor composition further comprises asphaltene inhibitors, paraffin inhibitors, scale inhibitors, emulsifiers, water clarifiers, dispersants, emulsion breakers, or combinations thereof.

6 . The oil or gas pipeline of claim 1 , being in fluid communication with a subterranean formation.

7 . The oil or gas pipeline of claim 6 , configured to transport the fluid source toward, into, or out of a subterranean formation.

8 . The oil or gas pipeline of claim 1 , wherein one or more of the first compound, the second compound, or the third compound is formed by a reaction between i) gamma-undecalactone, delta-undecalactone, or gamma-octalactone and ii) N,N dimethylpropane-1,3-diamine.

9 . A corrosion inhibitor composition comprising:
a fluid source comprising a liquid hydrocarbon, gas, produced water, or injectate; and a hydroxyamide component comprising: a first compound having the structure

a second compound having the structure

a third compound having the structure

or combinations thereof.

10 . The corrosion inhibitor composition of claim 9 , wherein the fluid source comprises the liquid hydrocarbon, wherein the liquid hydrocarbon comprises oil.

11 . The corrosion inhibitor composition of claim 9 , wherein the fluid source further comprises hydrogen sulfide, carbon dioxide, oxygen, sodium chloride, calcium chloride, sulfur dioxide, or combinations thereof.

12 . The corrosion inhibitor composition of claim 9 , further comprising asphaltene inhibitors, paraffin inhibitors, scale inhibitors, emulsifiers, water clarifiers, dispersants, emulsion breakers, or combinations thereof.

13 . The corrosion inhibitor composition of claim 9 , wherein one or more of the first compound, the second compound, or the third compound is formed by a reaction between i) gamma-undecalactone, delta-undecalactone, or gamma-octalactone and ii) N,N dimethylpropane-1,3-diamine.

14 . A method of inhibiting corrosion in an oil or gas pipeline, comprising:
transporting a fluid source in the oil or gas pipeline, wherein the fluid source comprises a corrosion inhibitor composition comprising: a first compound having the structure

a second compound having the structure

a third compound having the structure

or combinations thereof.

15 . The method of claim 14 , wherein the fluid source further comprises a liquid hydrocarbon, gas, produced water, or injectate.

16 . The method of claim 15 , wherein the fluid source further comprises the liquid hydrocarbon, wherein the liquid hydrocarbon comprises oil.

17 . The method of claim 15 , wherein the fluid source further comprises hydrogen sulfide, carbon dioxide, oxygen, sodium chloride, calcium chloride, sulfur dioxide, or combinations thereof.

18 . The method of claim 14 , wherein the corrosion inhibitor composition further comprises asphaltene inhibitors, paraffin inhibitors, scale inhibitors, emulsifiers, water clarifiers, dispersants, emulsion breakers, or combinations thereof.

19 . The method of claim 14 , wherein the oil or gas pipeline is in fluid communication with a subterranean formation.

20 . The method of claim 19 , wherein the fluid source is transported in the oil or gas pipeline toward, into, or out of the subterranean formation.

Assignees

• Championx Llc

Inventors

• Moloney Jeremy
• Bartels Jeremy Wayne
• Servesko Jeffrey M

Classifications

• C23F11/145

  Amides; N-substituted amides · CPC title

• C09K15/22

  containing an amide or imide moiety · CPC title

• C09K8/524

  organic depositions, e.g. paraffins or asphaltenes · CPC title

• C07C235/10

  having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by nitrogen atoms not being part of nitro or nitroso groups · CPC title

• C07C69/675

  of saturated hydroxy-carboxylic acids · CPC title