SECTION TITLESUBSEA TECHNOLOGY
Live, a 3D streaming technology that allows clients to video and live stream 3D underwater pointclouds to any device in the world. Te stereo camera technology system sends images and 3D models of assets from the seabed to a computer browser in any location globally. Tis offers customers instantaneous access to information as an inspection or construction activity is taking place. Te firm trialled the technology in 2019 with an oil and gas Super Major at a renewable wind farm, and more recently in 0.5m of visibility at an ex-naval dockyard owned by Offshore Renewable Energy Catapult. Iain Wallace, CSO at Rovco says: “To
our knowledge, this technology is the first of its kind, anywhere in the world, to live stream from the seabed to a desk. We have been using our SubSLAM technology for a year so far but with our ongoing investment in research and development, our latest capability of the system has revolutionised how subsea work can be carried out.” During the final trials, the technology
was lowered into a sea-water filled dock that contains sample assets from the subsea industry. Engineers were using Rovco’s stereo camera system to capture high-definition video, this allowed them to use the SLAM (Simultaneous Localisation and Mapping) system to build highly accurate 3D point cloud models while staff back in their office 300 miles away directed the ROV while keeping track of the ROV location and operations via their phones and laptops.
A world first from Rovco
Te capabilities of this new technology could change the way the industry carries out underwater inspections. It can reduce time and cost and could potentially revolutionise the way engineers process data, allowing for faster data-driven decisions to be made regarding the integrity of subsea infrastructure.
ROV SUCCESS Forum Subsea Technologies’ latest remotely operated vehicle (ROV), the XLe Spirit, has successfully completed sea trials in Norway. Te vehicle is the first of a new generation of electric observation class ROVs. It is the smallest in the new range, and powerful enough to perform subsea maintenance and repair work. Working with its Norwegian partner,
Innova, Forum tested the XLe Spirit at a ford with a 500m water depth. Te standard equipment function testing was confirmed utilising all ancillary equipment, including cameras, lights, altimeters and sonars. Te XLe Spirit benefits from an optional electric or hydraulic five-function manipulator arm. Te self-regulating power feature compensates for tether losses ensuring a constant and stable power delivery to the vehicle, regardless of tether length. Te trials follow a 12-week assessment, which took place at Forum’s test tank in Yorkshire, UK. Te vehicle is the first observation
Ashtead has completed a subsea monitoring project
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www.engineerlive.com
class ROV to utilise Forum’s Integrated Control Engine (ICE) to bring greater functionality commonly only found in
larger work-class vehicles. Te advanced control electronics pod fitted to all Forum XLe observation class vehicles enables superior connectivity and expansion capabilities compared to some other ROVs on the market. Ethernet interfacing allows for seamless integration with other industry sensors.
SUBSEA MONITORING SCHEME SUCCESS Subsea equipment solutions specialist Ashtead Technology has successfully completed a subsea installation monitoring project for Ocean Installer AS in Equinor’s Askeladd and Johan Castberg fields.
Te contract saw Ashtead Technology
provide its integrated Deflection Monitoring System (DMS) services and equipment to support the installation of eight Integrated Template Structures (ITS) in the fields that are located in the Northern Norwegian Sea. During operations, the dual independent DMS systems monitored, calculated, displayed and logged structure deflection, heading, pitch, roll, depth and suction can differential pressures, in real-time. Tis method of real-time monitoring is vital during the placement of suction can based subsea structures as it ensures any potential issues can be anticipated without delay, reducing the risk of structural damage. During the placement of the structures, the DMS systems were configured for autonomous independent operation, communicating data to one of the
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