Methods and systems for detecting RFID tags in a borehole environment
US10358914B2 · kind B2 · utility
18Cited by
140References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Feb 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10366
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Sensor assemblies are deployed in a borehole for a well, such as an oil well or other hydrocarbon recovery well. The sensor assemblies may be coupled to a casing string (e.g., the exterior of the casing), and detect RFID tags or other properties of material (e.g., fluids) in an annulus surrounding the casing string. During cementing or other operations, RFID tags may be used to track fluids. RFID detection circuits may be used to scan at different frequencies, and corresponding results may be compared by various means and processes to determine the presence of RFID tags.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.