Downhole power generation
US10781668B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Jul 31, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/128
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Providing power to a downhole-type tool includes positioning a downhole-type electric motor in a wellbore, electrically connecting a variable speed drive to the electric motor with three-phase conductors extending between the variable speed drive and the electric motor, where the variable speed drive controls and supplies power to the electric motor through the three-phase conductors, diverting at least a portion of a power supply from the three-phase conductors to a rectifier, and supplying, from the rectifier, the diverted portion of the power supply to at least one downhole-type tool proximate to the electric motor, the at least one downhole-type tool operable using the diverted portion of the power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.