Novel corrosion inhibition package
AssigneeFluid Energy Group Ltd.
InventorsClay PURDY, Markus WEISSENBERGER
Life of this patent
Estimating the term…
Abstract
A corrosion inhibition package for use with an aqueous acid composition, said package comprising: a terpene; a cinnamaldehyde or a derivative thereof; at least one amphoteric surfactant; and a solvent. Also disclosed are compositions comprising said corrosion inhibitor package. Preferably, the corrosion inhibition package meets the environmental requirements for classification as yellow according to the Norwegian North Sea offshore drilling regulatory requirements.
Claims19
An aqueous synthetic or modified acidic composition comprising
- a corrosion inhibitor package,
- an acid composition comprising an acid selected from the group consisting of mineral acids;
- organic acids, synthetic acids;
- modified acids;
- complexed acids and combinations thereof, and
- wherein said corrosion inhibitor package comprises
- a terpene;
- a cinnamaldehyde or a derivative thereof;
- at least one amphoteric surfactant;
- an anionic surfactant which is ß-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1);
- and
- a solvent;
- and wherein the volume % of the corrosion inhibition package in the aqueous synthetic or modified acidic composition ranges from 0.1 to 10%.
A corrosion inhibition package for use with an aqueous synthetic or modified acidic composition comprising
- a corrosion inhibitor component, wherein said corrosion inhibitor component comprises
- a terpene;
- a cinnamaldehyde or a derivative thereof;
- at least one amphoteric surfactant, wherein the at least one amphoteric surfactant is selected from the group consisting of an amido betaine surfactant, an amido sultaine surfactant, and combinations thereof;
- an anionic surfactant which is ß-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1);
- and
- a solvent.
A corrosion inhibition package for use with an aqueous acid composition, said corrosion inhibition package comprising
- a corrosion inhibitor component, wherein said corrosion inhibitor component consists of a terpene;
- a cinnamaldehyde or a derivative thereof;
- at least one amphoteric surfactant;
- an anionic surfactant which is ß-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1);
- and a solvent.
Dependencies are inferred from the claim text.