Self-powered microsensors for in-situ spatial and temporal measurements and methods of using same in hydraulic fracturing
US10880625B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 29, 2018 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Nov 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/886
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A delayed-activation sensor system includes at least one microsensor. The microsensor may include at least one sensor module for sensing a condition in an environment and a dissolvable coating encapsulating at least a portion of the at least one sensor module such that the dissolvable coating prevents the at least one sensor module from sensing the condition in the environment. The dissolvable coating may be dissolvable in a fluid in the environment such that the sensor module is activated after being located in the environment for a period of time. The microsensor may also include at least one energy harvester module to generate electrical power for the microsensor from the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.