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Seatooth wireless products to be showcased in Kuala Lumpur

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Oilfield Technology,

WFS Technologies and Focus Subsea will demonstrate Seatooth wirelessly enabled products at the Petronas Research Station test tank facilities in Kuala Lumpur on May 23rd 2016. These control and monitoring systems can increase subsea production and strengthen field economics for operators by improving asset integrity management and flow assurance. There is also great potential to minimise future subsea project costs by greatly reducing expensive subsea connectors and improving integrity by eliminating the issues associated with water ingress over long durations.

The presentation will focus on three demonstrations.

Seatooth connect

Seatooth Connect encompasses a range of wireless communication products underpinned by WFS’s subsea radio and inductive power technologies.

Two Seatooth connect modems will be positioned at the bottom of a pool. Once they are brought to within 2 cm, a signal is able to pass through the water and complete the circuit.

The Seatooth Connect 40 W system supports data transmission rates of 10 Mbps. Importantly, it also supports power transmission of 40 W. This means that sealed batteries within a sensor, camera etc., can be recharged without the need for a physical connection. It also allows an AUV to be recharged at a docking station without the need for subsea cables and connectors.

Seatooth PipeLogger

The second demonstration will focus on the Seatooth PipeLogger. This can be used to measure the internal temperature, corrosion, flow, leaks and vibration of subsea pipelines without the need to physically penetrate the pipe wall. The Seatooth PipeLogger has a variety of applications such as monitoring internal corrosion, leak detection and flow assurance. It can also log temperature variations within lines.

The system can be easily installed or retrofit, even on pipelines incorporating up to 50 mm of insulation. Based on wireless technology, the logger can store 400 000 time stamped readings.

The demonstration will see the Seatooth PipeLogger placed at the bottom of a test tank. It will show a fundamental advantage of the wireless system in not having to use subsea jumpers or buried cables. Instead, the data can be harvested through the water-air boundary.

Seatooth Inclinometer

Subsea construction typically requires equipment to be installed horizontally, or pipes, piles etc, to pass through the seabed vertically. Any change in tilt angle throughout the installation phase as this may suggest strain or vibration. A traditional way of recording angular change is through a two-dimensional ‘bullseye’ level, however, requires a camera to get a clear view of the target face, something not always possible in the sediment-charged waters surrounding subsea operations. WFS’ wireless inclinometer, however, can measure small changes of tilt and log this over time.

The last demonstration will show the submerged inclinometer being tilted to simulate movement. This will send data to a Seatooth S100 data recovery unit located 5 - 7 m away at the bottom of the pool, cable-connected to a laptop. Changes of angle will be recorded in the portable computer.

Each of the systems demonstrated will be integrated with Seatooth Ensure, WFS’s battery management system technology which enables the battery life of deployed subsea assets to be extended to up to 15 yr. To book a place please email Mike Theobald at

Adapted from a press release by Louise Mulhall

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