Investigating the Response of Distributed Fibre Optic Acoustic Sensing for Subsea Cable Motion Monitoring

James Jackson*, John Macarthur, Brian Sellar, William Macpherson, Henry Bookey

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 languageEnglish
Title of host publicationThe 31st International Ocean and Polar Engineering Conference
PublisherOnePetro
ISBN (Print)978-188065382-1
Publication statusPublished - 20 Jun 2021
EventThe 31st International Ocean and Polar Engineering Conference - Rhodes, Greece, Rhodes, Greece
Duration: 20 Jul 202122 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

NameProceedings of the International Offshore and Polar Engineering Conference
PublisherInternational Society of Offshore and Polar Engineers
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

ConferenceThe 31st International Ocean and Polar Engineering Conference
Abbreviated titleISOPE
Country/TerritoryGreece
CityRhodes
Period20/07/2122/07/21
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

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