Expro said the Cableless Telemetry System (CaTS), used reservoir monitoring and control, allows real-time information to be transmitted to and from downhole without the use of a direct cabled connection in the well.

The company said CaTS’ two-way transmission capability enables the remote control of downhole instrumentation, “opening the path to the radical redesign” of downhole completions.

The CaTS system was installed in a Thylacine well in July 2006 as part of a lower completion assembly that provided zonal isolation between immediately producible reservoir layers and a separate zone, potentially producible in the future.

Expro said CaTS transmits its data from the reservoir zone being monitored, to a pick-up located further up the well, then onwards to surface using Expro’s wireless telemetry technology.

The design uses a CaTS receiver located on the unmanned Thylacine platform topside to collect, process and store the data from downhole. This data is then transmitted from the receiver to the client’s onshore facility, it said.

The Thylacine is also known as the Tasmanian tiger.