Inhibition of asphaltene deposition in crude oil production systems
US6313367A · kind A · utility
27Cited by
9References
12Claims
0Family size
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Inventor
Key dates
| Filing date | Jan 25, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Jan 25, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
It has been discovered that various ester and ether reaction products are excellent asphaltene deposition inhibitors or dispersants for use in hydrocarbons such as crude oils. The asphaltene inhibiting compounds may be (1) esters formed from the reaction of polyhydric alcohols with carboxylic acids; (2) ethers formed from the reaction of glycidyl ethers or epoxides with polyhydric alcohols; and (3) esters formed from the reaction of glycidyl ethers or epoxides with carboxylic acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.