Lightweight proppant and methods for making and using same
US11339323B2 · kind B2 · utility
1Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | May 17, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Lightweight proppant particles are disclosed. The lightweight proppant particle can include a proppant particle having an apparent specific gravity of at least about 1.5 g/cc, a coating of a hydrophobic material formed on an outer surface of the proppant particle, and a coating of an amphiphilic material formed on an outer surface of the coating of the hydrophobic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.