Abstract / Description of output
A simultaneous Distributed Acoustic Sensing (DAS) and Distributed Temperature Sensing (DTS) system is presented. In DAS, perturbations across hundreds of metres of fibre are detected by the use of phase-sensitive Optical Time-Domain Reflectometry (OTDR) from Rayleigh backscattering caused by these perturbations. DTS relies on Raman OTDR in a similar fashion. The capabilities of the DAS system are presented, showing detection limits on the order of sub Hz to kHz while achieving spatial resolution on the order of metres. The ability to differentiate between different types of perturbation including tapping, transient signals and smooth, strumming motion is demonstrated.
Original language | English |
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Title of host publication | The 31st International Ocean and Polar Engineering Conference |
Publisher | OnePetro |
ISBN (Print) | 978-188065382-1 |
Publication status | Published - 20 Jun 2021 |
Event | The 31st International Ocean and Polar Engineering Conference - Rhodes, Greece, Rhodes, Greece Duration: 20 Jul 2021 → 22 Jul 2021 Conference number: 31 https://onepetro.org/ISOPEIOPEC/proceedings-pdf/ISOPE21/All-ISOPE21/ISOPE-I-21-2106/2450163/isope-i-21-2106.pdf |
Publication series
Name | Proceedings of the International Offshore and Polar Engineering Conference |
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Publisher | International Society of Offshore and Polar Engineers |
ISSN (Print) | 1098-6189 |
ISSN (Electronic) | 1555-1792 |
Conference
Conference | The 31st International Ocean and Polar Engineering Conference |
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Abbreviated title | ISOPE |
Country/Territory | Greece |
City | Rhodes |
Period | 20/07/21 → 22/07/21 |
Internet address |
Keywords / Materials (for Non-textual outputs)
- production logging
- cable monitoring
- fiber
- production control
- upstream oil & gas
- Detection
- DISTURBANCE
- fibre optic acoustic sensing
- perturbation
- reservoir surveillance