Downhole sensing technology specialist Well-SENSE has completed multiple offshore FiberLine Intervention (FLI) projects, worth a six-figure sum, for a range of international E&P companies.
The projects have included Distributed Temperature Sensing (DTS) surveys for flow profiling on two unmanned gas lift wells off the coast of Malaysia, and a selection of leak detection surveys, capturing DTS and Distributed Acoustic Sensing (DAS) data, to determine leak points in producing wells and wells headed for Plug and Abandonment in the North Sea.
FLI’s bare fiber deployment provided a range of measured downhole data to the operators in a quarter of the time it would usually take with conventional methods. Operations, on average, took around three hours, compared to the expected 12-14 hours for wireline logging, Well-SENSE explained.
During the flow profiling project, FLI delivered additional well insights including the optimal temperature of the producing well, the location of water ingress and the flow performance of each gas injection valve, allowing the operator to consider new production optimisation options for the two wells.
Capturing both distributed temperature (DTS) and distributed acoustic (DAS) data during the leak detection projects allowed the operators to verify well integrity or identify leak points and paths, including in the B and C annulus, and plan any remediation work necessary.
Craig Feherty , Well-SENSE CEO, said: “F LI’s fiber optic technology is a game-changer in downhole well surveillance, delivering substantial safety and time efficiencies when compared to conventional methods.
“The results of our first round of offshore deployments demonstrates just how significant our FLI technology is in delivering quality well data quickly and efficiently in this environment. These projects mark a significant milestone for Well-SENSE as we look to expand offshore applications globally. ”