Drive-by-internet demonstrated for subsea ROVs04 August 2020

Forum Energy Technologies of the UK has developed and demonstrated the ability to remotely operate two types of submersible ROV robots between an offshore vessel and a remote location.

According to the company, this new capability brings major opportunities to adapt operational practices in response to the latest industry drives as cost savings and reductions in HSE risks can be realised through reducing offshore crew sizes.

The concept of remote piloting was proven by Forum a decade ago when the company successfully operated its TXLX Workclass ROV in its test pool at Kirkbymoorside, UK from a TXLX Console located in Florida, USA. Remote control capabilities demonstrated were camera and light controls, manifold power on/off, depth and gyro power, pan and tilt controls, manipulator controls, ROV thruster controls, auto heading controls. At that time, internet speeds were much slower than today, resulting in high latency telemetry which the control system software was not equipped to counter.

However, continued development in software efficiencies which reduce the effect of network latency, coupled with increased availability and reliability of the global 4G network, has now allowed Forum to offer remote operations on its range of ROV systems. It recently demonstrated this capability on its Workclass and Observation Class (Perry and Sub-Atlantic) ROV systems.

Forum’s ICE & subCAN remote operations suites provide a means of piloting vessel or platform-based systems from an onshore control facility via a wired, 4G or satellite connection.

The onshore hardware replicates the offshore HMI hardware and GUI (graphical user interface) so controls will be familiar to operators. The onshore control module provides a local hub for power and data connections.

Existing offshore control station hardware can be upgraded to allow remote control and monitoring of power systems. The offshore control module interfaces with the upgraded hardware, providing control and monitoring via the existing ICE/subCAN network. A key-switch, in conjunction with the software, ensures secure control of hand-over between offshore and onshore stations.

The ICE & subCAN control software applies enhanced position control when a compatible DVL and gyro are fitted to the ROV.

The system upgrade components are manufactured and delivered from Forum’s UK facility in Kirkbymoorside, Yorkshire.

Kevin Taylor, Forum’s vice president - subsea vehicles, said: “Remote operations can reduce the number of personnel offshore, particularly during complex processes or technical procedures which may require a specialist to be deployed. The capability also aligns strongly with industry drives to reduce carbon footprint and deliver safe, efficient operations.”

Forum Energy Technologies has 50 years’ experience producing Perry and Sub-Atlantic ROVs and has produced more than 800 ROV systems.

William Dalrymple

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Forum Energy Technologies

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