Proppant particles formed from slurry droplets and method of use
US8865631B2 · kind B2 · utility
20Cited by
20References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 24, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Dec 2, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/528
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Proppant material for hydraulic fracturing is provided. The particles of the proppant are formed by drip casting. A slurry of finely divided ceramic particles is flowed through nozzles and formed into droplets under the influence of vibration. Uniform sized, smooth surface, spherical green particles are formed. The green particles are dried and sintered to form the proppant. The proppant is used in the process of hydraulic fracturing of wells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.