Integrity monitoring of a well bore, via the cemented production casing

Continuous measurement of strain evolution before, during and after cementing in a borehole

On a 550 m brine production well, fiber optic sensing was deployed during the installation of the casing to monitor long-term strain evolution and temperature. The fiber optic sensing cables were successfully integrated into the cemented annulus, providing a reliable coupling to the structure. Absolute temperature and strain are shown after 11 months.

How will you monitor your next cased borehole project for deformation throughout its life?

Let us help you decide how fiber optic sensing will provide the data you need to detect deformation early and help avoid casing failure. Contact us and share your thoughts.

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Detecting deformation in borehole casing with fiber optic sensing

Strain and temperature monitored continuously over 11 months
Monitor throughout the life of the well, even after operations cease
Detection of predicted and unforeseen risks during construction
Distributed fiber optic sensing measures and monitors where other techniques cannot.

Technical paper: Keynote: Enhanced integrity monitoring via distributed strain sensing along the cemented production casing of salt cavern wells
By N. Noether, M. Schlichtenmayer, C. Pretzschner and M. Facchini
Publisher: European Association of Geoscientists & Engineers
Source: Conference Proceedings, EAGE GeoTech 2021 Second EAGE Workshop on Distributed Fibre Optic Sensing, Mar 2021, Volume 2021, p.1 – 4
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