Multi-parameter optical fiber sensing for reservoir compaction engineering
US-2018202283-A1 · Jul 19, 2018 · US
Method for providing a hybrid distributed fiber optic sensing system with improved connection to existing deployed fiber infrastructure
US11686602B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11686602-B2 |
| Application number | US-202117196939-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 9, 2021 |
| Priority date | Apr 2, 2020 |
| Publication date | Jun 27, 2023 |
| Grant date | Jun 27, 2023 |
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Abstract
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A method of providing a hybrid distributed fiber optic sensing system (DFOS) that extends an existing fiber optic telecommunications network thereby providing that existing fiber optic telecommunications network with DFOS capabilities. The method provides a length of fiber optic cable, wherein said fiber optic cable conveys communications traffic; provides a DFOS interrogator system in optical communication with the communications fiber optic cable; extends the length of communications fiber optic cable with first and second lengths of fiber optic sensory cable, and operates the DFOS interrogator system such that first sensory data is generated in the first length of fiber optic sensory cable and second sensory data is generated in the second length of fiber optic sensory cable and conveyed to the DFOS interrogator system via the communications fiber optic cable, wherein the first type of sensory data and the second type of sensory data is a type selected from the group consisting of acoustic data, temperature data, and vibration data and the first type of sensory data is not the same type as the second type of sensory data.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of providing a hybrid, distributed fiber optic sensing (DFOS) system with improved connection to existing deployed fiber infrastructure, said method comprising: providing a length of fiber optic cable, wherein said fiber optic cable conveys communications traffic as part of an existing deployed fiber infrastructure; providing a DFOS interrogator system in optical communication with the communications fiber optic cable; extending the length of communications fiber optic cable with a first length of fiber optic sensory cable, said first length of fiber optic sensory cable in optical communication with the length of communications fiber optic cable; extending the length of communications fiber optic cable with a second length of fiber optic sensory cable, said second length of fiber optic sensory cable in optical communication with the length of communications fiber optic cable; and operating the DFOS interrogator system such that a first type of sensory data is generated in the first length of fiber optic sensory cable and conveyed to the DFOS interrogator system via the communications fiber optic cable and a second type of sensory data is generated in the second length of fiber optic sensory cable and conveyed to the DFOS interrogator system via the communications fiber optic cable; wherein the first type of sensory data and the second type of sensory data is a type selected from the group consisting of acoustic data, temperature data, and vibration data; and wherein the first type of sensory data is not the same type as the second type of sensory data. 2. The method of claim 1 wherein communications fiber optic cable and the first length of fiber optic sensory cable are joined in optical communication at a junction box. 3. The method of claim 2 wherein the junction box is located in a manhole. 4. The method of claim 2 wherein the junction box is located on an aerial cable or pole.
Assignees
Inventors
Classifications
- G01D5/35338Primary
using other arrangements than interferometer arrangements · CPC title
Arrangements specific to fibre transmission · CPC title
using fibre optic sensors (light guides per se G02B6/00, acousto-optical devices specially adapted for gating or modulating in optical wave guides G02F1/125) · CPC title
- G01K11/32Primary
using changes in transmittance, scattering or luminescence in optical fibres · CPC title
the material being an optical fibre · CPC title
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- What does patent US11686602B2 cover?
- A method of providing a hybrid distributed fiber optic sensing system (DFOS) that extends an existing fiber optic telecommunications network thereby providing that existing fiber optic telecommunications network with DFOS capabilities. The method provides a length of fiber optic cable, wherein said fiber optic cable conveys communications traffic; provides a DFOS interrogator system in optical …
- Who is the assignee on this patent?
- Nec Lab America Inc, Nec Corp, Verizon Patent & Licensing Inc
- What technology area does this patent fall under?
- Primary CPC classification G01D5/35338. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 27 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).