Additive of chemically-modified cellulose nanofibrils or cellulose nanocrystals
US10294403B2 · kind B2 · utility
0Cited by
5References
17Claims
0Family size
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Key dates
| Filing date | Dec 19, 2014 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/062
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A wellbore treatment fluid comprising: a base fluid; and additive comprising a first polymer bundle selected from the group consisting of cellulose nanofibrils, cellulose nanocrystals, and combinations thereof, wherein one or more functional groups of the first polymer are chemically modified A method of treating a portion of a wellbore comprising: introducing the treatment fluid into the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.