Spherical pellets containing common clay particulate material useful as a proppant in hydraulic fracturing of oil and gas wells
US8772207B2 · kind B2 · utility
2Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2013 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Jun 21, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ceramic propping agent, in the form of a spherical pellet, and containing common mineral particulate. The desired propping agent is defined as a particulate ceramic made from raw materials which may be comprised of about: 10%-90% parts by weight of a naturally occurring mineral particulate, 30%-70% parts by weight aluminosilicate network modifier, 0.25-20% parts by weight strength enhancer, and at least one part, typically less than 10% by weight, binder. For use in oil and/or natural gas wells as a hydraulic fracturing proppant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.