Hydraulic fracturing propping agent
US5120455A · kind A · utility
60Cited by
14References
28Claims
0Family size
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Key dates
| Filing date | Dec 5, 1990 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Dec 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/924
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A high strength propping agent for use in hydraulic fracturing of subterranean formations comprising solid, spherical particles having an alumina content of between 40 and 60%, a density of less than 3.0 gm/cc and an ambient temperature permeability of 100,000 or more millidarcies at 10,000 psi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.