Cellulose nanowhiskers in well services
US9133384B2 · kind B2 · utility
10Cited by
4References
21Claims
0Family size
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Key dates
| Filing date | Jul 30, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Oct 9, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is provided for use in various well services, the method including the steps of: (a) forming or providing a well fluid comprising cellulose nanowhiskers; and (b) introducing the well fluid into a well. The method can be used, for example, for increasing the strength of a cement, for increasing the viscosity of a water-based well fluid, such as for a kill pill, a fracturing fluid, a gravel packing fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.