Gelled corrosion inhibition method
US5275760A · kind A · utility
7Cited by
13References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Aug 27, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S166/902
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of corrosion inhibition using a gelled inhibitor is disclosed. The method comprises consecutively introducing into an annular region of a jacketed pipeline a hydrogel slurried in an environmentally innocuous oil medium and a corrosion inhibitor dissolved in an aqueous medium. The liquid media are contacted to form a gelled corrosion inhibitor in the annulus. The method is particularly useful in buried pipelines where corrosion monitoring is difficult.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.