Nanotube mediation of degradative chemicals for oil-field application
US10913888B2 · kind B2 · utility
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Key dates
| Filing date | Apr 7, 2017 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Sep 8, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Discrete, individualized carbon nanotubes having targeted, or selective, oxidation levels and/or content on the interior and exterior of the tube walls can be used for nanotube-mediated controlled delivery of degradative molecules, such as oxidizers and enzymes, for oil-field drilling applications. A manufacturing process using minimal acid oxidation for carbon nanotubes may also be used which provides higher levels of oxidation compared to other known manufacturing processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.