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1. (WO2015174995) INHIBITEURS DE CORROSION MARQUÉS DESTINÉS À ÊTRE UTILISÉS DANS DES OPÉRATIONS SOUTERRAINES
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

What is claimed is:

1. A method comprising:

providing a tagged corrosion-inhibiting additive that comprises an imidazoline-based compound bonded with a detectable moiety; and

introducing the tagged corrosion-inhibiting additive into at least a portion of a subterranean formation.

2. The method of claim 1 further comprising analyzing a sample of fluid from at least a portion of the subterranean formation to determine a concentration of the tagged corrosion-inhibiting additive in the fluid.

3. The method of claim 2 wherein an inductively coupled plasma optical emission spectrometry technique is used to analyze the fluid sample.

4. The method of claim 2 wherein:

the concentration of the tagged corrosion-inhibiting additive in the fluid sample is less than a predetermined effective amount; and

the method further comprises introducing an additional corrosion-inhibiting additive into at least a portion of the subterranean formation.

5. The method of claim 4 wherein the additional corrosion-inhibiting additive comprises an additional tagged corrosion-inhibiting additive.

6. The method of claim 1 wherein a well bore penetrates the portion of the subterranean formation, and at least a portion of tubing resides in the well bore.

7. The method of claim 1 wherein introducing the tagged corrosion-inhibiting additive into at least a portion of the subterranean formation comprises injecting the tagged corrosion-inhibiting additive into a capillary injection tube disposed in a well bore that penetrates at least a portion of the subterranean formation.

8. The method of claim 1 wherein introducing the tagged corrosion-inhibiting additive into at least a portion of the subterranean formation comprises:

introducing a first amount of the tagged corrosion-inhibiting additive into a well bore penetrating at least a portion of a subterranean formation at a first time; and

introducing a second amount of the tagged corrosion-inhibiting additive into the well bore at a second time.

9. The method of claim 8 wherein the method further comprises:

taking a sample of fluid from at least a portion of the subterranean formation after the first amount of the tagged corrosion-inhibiting additive was introduced;

analyzing the fluid sample to determine a concentration of the tagged corrosion-inhibiting additive in the fluid sample,

and wherein the second time was selected based at least in part on the concentration of the tagged corrosion-inhibiting additive in the fluid sample

10. The method of claim 1 wherein the detectable moiety comprises at least one element selected from the group consisting of: boron, phosphorus, bromine, iodine, selenium, and any combination thereof.

1 1. A method comprising:

providing a tagged corrosion-inhibiting additive that comprises an imidazo line-based compound bonded with a detectable moiety; and

introducing the tagged corrosion-inhibiting additive into at least a portion of a pipeline carrying one or more fluids from one location along the pipeline to another location along the pipeline.

12. The method of claim 1 1 further comprising analyzing a sample of fluid from at least a portion of the pipeline to determine a concentration of the tagged corrosion-inhibiting additive in the fluid.

13. The method of claim 12 wherein an inductively coupled plasma optical emission spectrometry technique is used to analyze the fluid sample.

14. The method of claim 12 wherein:

the concentration of the tagged corrosion-inhibiting additive in the fluid sample is less than a predetermined effective amount; and

the method further comprises introducing an additional corrosion-inhibiting additive into at least a portion of the pipeline.

15. The method of claim 14 wherein the additional corrosion-inhibiting additive comprises an additional tagged corrosion-inhibiting additive.

16. The method of claim 1 1 wherein introducing the tagged corrosion-inhibiting additive into at least a portion of the pipeline comprises:

introducing a first amount of the tagged corrosion-inhibiting additive into the pipeline at a first time; and

introducing a second amount of the tagged corrosion-inhibiting additive into the pipeline at a second time.

17. The method of claim 16 wherein the method further comprises:

taking a sample of fluid from at least a portion of the pipeline after the first amount of the tagged corrosion-inhibiting additive was introduced;

analyzing the fluid sample to determine a concentration of the tagged corrosion-inhibiting additive in the fluid sample,

and wherein the second time was selected based at least in part on the concentration of the tagged corrosion-inhibiting additive in the fluid sample

18. The method of claim 1 1 wherein the detectable moiety comprises at least one element selected from the group consisting of: boron, phosphorus, bromine, iodine, selenium, and any combination thereof.

19. A corrosion-inhibiting composition comprising an imidazoline-based compound bonded with a detectable moiety that comprises boron.

20. The corrosion-inhibiting composition of claim 19 wherein the imidazoline-based compound comprises an imidazoline-based amine.