Self-suspending proppants for hydraulic fracturing
US10316244B2 · kind B2 · utility
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83References
12Claims
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Key dates
| Filing date | Dec 7, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Dec 7, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides modified proppants, and methods for their manufacture. In embodiments, the modified proppant comprises a proppant particle and a hydrogel coating, wherein the hydrogel coating is applied to a surface of the proppant particle and localizes on the surface to produce the modified proppant. In embodiments, formulations are disclosed comprising the modified particles, and methods are disclosed for using the formulations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.