Method of using biosurfactants as acid corrosion inhibitors in well treatment operations
US9884986B2 · kind B2 · utility
19Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Apr 10, 2015 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Apr 10, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Corrosive effects arising during well treatment applications are inhibited and/or prevented by introducing into the well composition containing a corrosion inhibitor of a biosurfactant selected from glycolipids (other than sophorolipids and mannosylerythritol lipids), phospholipids; polyol lipids; lipoproteins, lipopeptides, ornithine lipids, carbohydrate-lipids, neutral lipids, aminoacid lipids, exolipids, liposan; siderolipids, protein polyamines diglycosyl diglycerides, fimbriae, saponified triglycerides and fatty acids. The composition may also contain a corrosion inhibitor intensifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.