Micro-structured fiber optic cable for downhole sensing
US9926780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Jul 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/516
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In accordance with embodiments of the present disclosure, systems and methods for sensing and communicating sensed downhole parameters using a hybrid micro-structured fiber optic cable are provided. The micro-structured fiber optic cable may be used to communicate and/or amplify sensor signals indicative of the sensed downhole parameters. These sensed downhole parameters may include one or more of a downhole temperature, pressure, magnetic field, electromagnetic energy, radioactivity, telemetry signal, or some other downhole measurement. The micro-structured fiber optic cable may include opto-electronic circuitry built into the internal structure of the cable for modulating the optical signal based on the sensed parameters. The opto-electronic circuitry may include diodes, triodes, and other components that are communicatively coupled to external sensors used to measure downhole parameters. The opto-electronic circuitry may include an internal sensor in the form of a functional material disposed within the micro-structured fiber optic cable for measuring downhole parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.