Kinetic energy harvesting in a drill string
US8022561B2 · kind B2 · utility
23Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2008 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Nov 23, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method for harvesting energy in a wellbore is disclosed. In one embodiment, a harvester tool positioned in a wellbore for capturing energy in the wellbore is disclosed. The harvester tool includes a rotor comprising a magnet. The magnet is disposed eccentric to a center of the harvester tool. In addition, the rotor is rotatable around the center of the harvester tool. The harvester tool also includes a stator. Rotation of the rotor induces a voltage in the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.