Self-suspending proppants for hydraulic fracturing
US9315721B2 · kind B2 · utility
31Cited by
64References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2012 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Apr 18, 2034 |
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.