Microemulsion containing oil field chemicals useful for oil and gas field applications
US7615516B2 · kind B2 · utility
70Cited by
9References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2006 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Oct 19, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/536
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Useful microemulsions have corrosion inhibitors in the internal phase and an external phase and at least one surfactant that helps define the emulsion. The corrosion inhibitor itself may have its pH adjusted so that it also serves the role of surfactant. The corrosion inhibitors form microemulsions with particle or droplet diameters of about 10 to about 300 nm. The microemulsions may be oil-in-water, water-in-oil or bi-continuous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.