FIBRE OPTIC SURVEY WITHOUT WIRELINE.

IT'S PERFECT SENSE.

A FULL PICTURE OF YOUR WELL, NOT SNAPSHOTS.

ANSWERED.

BETTER DATA, WITHIN HOURS

NO WORRIES.

DETECT SMALL, INTERMITTENT LEAKS.

NO SWEAT.

END-TO-END MONITORING OF CEMENT INTEGRITY.

A WALK IN THE PARK.

If you want clearer, end-to-end insight across your well's entire lifecycle with efficiently deployed distributed fibre optic sensing solutions - WellSense is the answer.

Fli Dynamic De-spool fibre optic solutions represent a major advancement in optical fibre conveyance technology - removing the expense and complexity of wireline and slickline deployment, and the limitations of traditional point sensors. By simultaneously surveying your well end-to-end and acquiring superior-quality acoustic, temperature, and pressure data, you get a comprehensive profile of conditions along the entire wellbore.

WellSense: The Answer.

Hundreds of deployments worldwide

Don't gamble with incomplete data - get the full picture in hours to optimise well exploration, stimulation, integrity, production, and abandonment operations.

Need efficient and easy deployment?

Get the answer

Fli 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 answer

With 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 answer

As 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 answer

The 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.

Find leaks faster.

Fli surveys detect leaks – even small, intermittent ones – in hours or minutes.

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Deeper data.
Faster answers.

  • Continuous, full-well 3d coverage for precision detection.
  • Rapid results – get answers within hours, reducing survey time by up to 80%.
  • Lightweight operations – no winch, no wireline, means minimal footprint.
  • Specialist support from our industry leading analysts and software.
  • Also available to distributed sensing service providers as a standalone, easy-to-deploy tool.

Talk to us to find out how WellSense can help you pinpoint events and make better decisions faster.

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Case studies

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

Expert insight
to back the data

To support our Dynamic De-spool fibre optic technology, we provide expert engineered well diagnostic and interpretation services.

From leak detection to phase zero P&A surveys and more, we’ll help you get the answers.

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Also available
to approved
service partners

Our Fli Dynamic De-spool probe with hardware is available for direct purchase.
The probe and fibre are compatible with any interrogator and easy to deploy, making them ideal for integrating the advantages of distributed direct measurement into your operations, such as seismic surveys and integrated well integrity solutions.

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Get better answers, faster.

Get in touch to discover the benefits Fli Dynamic De-Spool probe fibre optic solutions can bring to your operation.

Fli Technology

Fli Dynamic De-Spool probe

At the heart of our fibre optic solutions is the Fli Dynamic De-Spool probe, where the bare optical fibre is de-spooled directly from the moving probe as it descends into the well. This offers significant operational advantages over fixed-origin spooling such as wireline and slickline, requiring only minimal surface and in-well hardware to perform the survey.

The Fli Dynamic De-Spool probe and bare optical fibre offers precise depth control, increased sensitivity, and makes the end-to-end placement of optic fibre highly efficient.

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Innovation

Inspired by spiders

Spiders employ dynamic spooling systems through web-building, where silk is deployed directly from the moving spider.

Fli Dynamic De-spool technology employs the same principles, aligning fibre release with motion. It ensures precision, adaptability to complex trajectories, and minimal stress while maintaining efficiency and continuous deployment.

And just like a spider web, bare fibre optic is easily brushed aside, enabling bare fibre to be left in the well to simplify operations. The bare fibre does not impede subsequent intervention operations, production or injection.