Downhole devices, associated apparatus and methods
US10968720B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2017 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Dec 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2013/0216
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There are described downhole devices, methods and other apparatus, which may be used to generate energy, monitor fluids and/or provide control signals or otherwise trigger for actuation. The devices, methods, etc. may provide improved autonomy and/or accuracy, while at the same time minimise any effect on the operation of a well. Such devices and methods may be particularly useful downhole and in remote locations. An example of a device comprises a generating material having a fluid contact surface, that contact surface being configured to be in contact with a fluid downhole. The generating material may be configured to generate an electric charge at the material in response a fluid at the contact surface. In some examples, the device further comprises a signal source configured to provide a signal in response to a generated electric charge at the generating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.