Integration of distributed strain and temperature sensors in composite coiled tubing

Daniele Inaudi, Branko Glisic

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

32 Scopus citations


Composite coiled tubing is an emerging technology in the oil & gas sector that presents important advantages compared to the steel coiled tubing and conventional drilling. The composite tube has reduced weight, allowing extended reach and improved fatigue life. An additional advantage resides in the fact that the coiled tube wall can contain and protect additional functional elements, such as electrical conductors and fiber optics for sensing and data communication. Sensing systems based on Brillouin and Raman scattering can be used to verify the pipe operational parameters, prevent failure, optimize oil production from the well, provide strain distribution along the tubing and detect hot-spots in high-power cables. The integration of such sensing elements into composite tubing presents additional advantages and challenges. On one hand the embedded sensors are protected by the composite material and can be installed during production, avoiding external installation that could interfere with the tubing operations. In the other hand, the integration of optical fiber sensors into the composite structure requires the development of appropriate packaging and installation techniques that allow easy handling during production and avoid and damage to the sensor and the composite structure itself. This contribution presents the sensing cable designs for temperature and strain sensing in a composite coiled tubing as well as testing results form initial field demonstrations,.

Original languageEnglish (US)
Title of host publicationSmart Structures and Materials 2006
Subtitle of host publicationSmart Sensor Monitoring Systems and Applications
StatePublished - 2006
Externally publishedYes
EventSmart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications - San Diego, CA, United States
Duration: Feb 27 2006Mar 1 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherSmart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


  • Brillouin Scattering
  • Coiled Tubing
  • Composites
  • Distributed Fiber Optic Sensors


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