Masterbatch for manufacturing a drilling fluid
US9896611B2 · kind B2 · utility
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23Claims
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Key dates
| Filing date | Sep 23, 2010 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Sep 4, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An oil-based masterbatch in the form of granules containing carbon nanotubes. Also, a method for preparing an oil-based masterbatch in the form of granules containing carbon nanotubes. Also, the use of an oil-based masterbatch in the form of granules containing carbon nanotubes for manufacturing an aqueous or organic viscoelastic fluid, intended for drilling in underground formations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.