Method for treating drilling fluid using nanoparticles
US6579832B2 · kind B2 · utility
18Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Jun 26, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/902
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for treating a drilling fluid is provided, which method includes the steps of providing a drilling fluid, providing a drilling fluid additive in the form of superparamagnetic nanoparticles, mixing the drilling fluid additive with the drilling fluid so as to provide a treated drilling fluid, and exposing the treated drilling fluid to a magnetic field so as to recover the superparamagnetic nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.