Leak Detection
Find leaks other systems miss, fast
Fli surveys are faster and typically more accurate than multi-point stationary surveys, thanks to the richer data produced by continuous sensing along the entire length of the fibre.
This enables earlier identification of leaks – even small, intermittent ones – meaning that leak detection jobs that might otherwise take days can often be completed in just a few hours.
The unrivalled sensitivity of bare optical fibres, coupled with best-in-class DAS interrogators, provides rapid and unparalleled detection of leak from within the tubing across multiple well annuli in a single survey.
A, B, C & D annuli leak detection – no problem. Conductor integrity issues – located.


04.03.26
From 5 Days to 14 Hours: Transforming offshore leak detection in the UAE.
15.10.25
From complexity to clarity with multi-leak paths
14.07.25
Intermittent leak pinpointed with precision
05.04.24
Overcoming the heat to detect five leak paths
08.11.23
Leak revealed where wireline unsuccessful
24.07.23
Answers delivered in less than 12 hrs
Know more. Act sooner.
Get in touch to learn how WellSense can support your operations.
Need efficient and easy deployment?
Get the answerFli Dynamic De-spool solutions are ready when you are. A simple, compact self-contained solution with rapid mobilisation and easy, single-operator deployment.
Whether planned or reactive, you can acquire critical data on demand - no waiting for wireline or slickline availability, no scheduling headaches.
Want answers in hours, not days?
Get the answerWith rapid data interpretation available on-site or remotely, our specialists - or your own team - can quickly and confidently diagnose wellbore issues, including leaks, cement assurance, injection profiling, and more.
With WellSense, multiple well surveys can be completed quickly and efficiently, making it ideal for high-volume well activities.
Tight on space or access?
Get the answerAs a winchless solution, Fli Dynamic De-spool fibre optic can be hand-carried and deployed at the wellsite by a single engineer – perfect for difficult to access wells, crowded facilities, and offline intervention.
It's simply the best way to deploy optical fibre for distributed sensing in a static well.
Looking for reliable, repeatable well data?
Get the answerThe Fli Dynamic De-spool probe is designed for single use. Its affordability and availability make distributed sensing surveys more accessible and repeatable across all your static wells.
The compact probe is typically disposed of in the rat hole after the job is completed. Alternatively, the dissolvable Fli probe eliminates any risk of the probe being left in the well.
Fli Dynamic
De-spool probe.
Fli Dynamic De-Spool probe. Better answers faster.