Downhole power generation device and separate-zone waterflooding device
US10890052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2018 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/186
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A downhole power generation device and a separate-zone waterflooding device, which relate to the field of oil and gas development technologies. The downhole power generation device comprises a housing extended axially and a rotating wheel, a striking mechanism and a piezoelectric bimorph provided in the housing. The piezoelectric bimorph is axially extended and circumferentially distributed around an axis of the housing, with one end of the piezoelectric bimorph being fixed. The rotating wheel is in transmission connection with the striking mechanism and can be rotated by fluid to drive the striking mechanism to rotate. The striking mechanism can touch the other end of the piezoelectric bimorph during rotation so that the piezoelectric bimorph vibrates back and forth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.