Apparatus and method for treating a subterranean formation using diversion
US8540015B2 · kind B2 · utility
0Cited by
16References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2012 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Sep 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/057
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and method comprising a plurality of particles which are magnetically attracted to one another in response to exposure to a magnetic field, and which maintain attraction to one another after removal of the magnetic field, the attraction being disabled when the particles are demagnetized, whereby the particles operate to alter the rheological properties of a fluid in which the particles are mixed when the attraction is enabled or disabled is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.