Warranty Surveys

Offshore wind farms are costly to operate and maintain, and any problems detected during the fixed warranty period must be addressed by the original equipment manufacturer and/or installer to guarantee that your assets remain cost-effectively operational for as long as feasible. As the warranty term approaches its end, it is critical to notify the manufacturer/installer of any problems that require correction under the defect remedy period. Unidentified problems that are not discovered in a timely manner result in needless unplanned costs and production downtime.

We are specialists in providing end-of-warranty inspection solutions that save our clients time and money by quickly identifying critical component defects as soon as possible, allowing warranty claims to be filed on time. As part of this process, we thoroughly examine your subsea infrastructure, carefully assessing the condition and structural integrity of critical components. Leveraging our industry-leading SubSLAM X2 technology, we provide highly detailed digital reconstructions of any defective components, allowing asset owners to effortlessly interrogate intuitive to navigate 3D digital twins of their assets and verify results and component performance against original design criteria. We deliver the highest quality data and base line reporting that can be easily re-visited, re-inspected, re-evaluated against subsequent years data sets to plot trends and spot patterns early enough to allow intervention.

Defective components usually correspond with costly remediation campaigns, and these problems often present themselves at an early stage by way of anomalies. Our team of in-house experts are equipped with extensive industry knowhow, and know exactly what to look out for.

Export & Array Cables

From offshore to inshore, we understand the importance of thoroughly checking and monitoring the integrity and condition of subsea cables post-installation and ensuring they remain buried in order to lower the possibility of future issues and risks such as being trawled or subjected to dropped objects.

Our comprehensive subsea cable survey solutions range from scour monitoring and seabed surveys with sensors such as multibeam, side scan sonars and acoustic sub bottom imaging technology, through to highly detailed ROV inspection surveys using state-of-the-art 3D vision and digital twinning technology combined as standard with the highest definition 4K video footage.

Cable Depth of Burial

From the shore, subsurface to the substation, from the substation to the arrays, into burial and out of for entry to the monopile/bellmouth, we offer precise and accurate depth of burial (DoB) information, which is essential for cable security and reducing cable maintenance or replacement costs through risks such as fatigue, dropped objects and trawling.

We provide efficient cable depth of burial surveys. Our team is experienced in deploying an extensive suite of leading-edge tools, including acoustic sub-bottom imaging technology, and integrated cable tracking systems to find the perfect solution for your required integrity assessments.

Critical Components

Using Edge ML and volumetric difference modelling, critical components can benefit from the data sets that SubSLAM X2 unlocks. Artificial intelligence can highlight depletion status, whilst 3D digital twins allow a more detailed assessment to calculate rate of depletion or change versus the original component design or base line model.

The utilisation of 3D point clouds provides quantitative analysis of components, allowing stakeholders to monitor whether conditions are deteriorating over time on critical components and features such as:

  • Cable protection systems
  • Anodes
  • Coatings
  • Marine Growth
  • Scour
  • Seabed mobility
  • Cable relative depth to seabed surface

Cable Protection System Remediation

Faults with offshore wind cable protection systems (CPS) have become an industry-wide problem in recent years, affecting multiple developments across the UK and Continental Europe. Issues commonly arise where continuous movement of the CPS across installed rock scour causes excessive abrasion, posing the risk of eventual cable failures in the field.

Harnessing SubSLAM X2 technology, we revolutionised CPS inspections, providing stakeholders with a level of accuracy, detail and perspective that no other technology can offer. Our systems offer real-time subsea contactless measurements and your millimetric precision digital models are produce live.

Delivering underwater 3D point clouds in real-time, our technology delivers a precise model of the entire length of the cable structure in one go, from cable entry/exit points through to seabed burial. Generating digital twins of the CPS, we offer clients a complete picture of the problem at hand, viewable live via our data platform, Atlas. This not only gives users a greater degree of coverage with the ability to thoroughly inspect models from all angles, but they can also examine the finer detail.

Combining this reference model with future inspection difference models, we offer an effortless way to track changes over time, guiding early informed decisions prior to potential cable protection system failure, and enabling stakeholders to monitor whether conditions are constant or deteriorating year-on-year.

Dense point clouds streamed live back to shore, means asset integrity engineers can join us offshore from the comfort of their office and take instant measurements of freespans, distance from the bell mouth into burial, gaps manifesting on CPS half shells and much more. From one single scene that can be viewed on any device, anywhere in the world via Atlas, users have a complete overview of the problem at hand, together with all the information they need to start talking about solutions and inform potential remediation techniques such as underpinning or stabilisation by rock bag placement.

Combining SubSLAM X2 with our extensive portfolio of ROV capabilities and expertise, huge savings in mobilisation costs, project time, and vessel days are realised.

Enabling data to be live-streamed, SubSLAM X2 also reduces offshore personnel requirements, allowing asset owners to inspect data from the comfort of their own offices. By minimising human intervention and removing the need for in-water calibrations or additional navigational equipment, the reductions in schedule time, cost and emissions across operations become immediately apparent.

ALARP Extension

Sometimes the jack up vessels that constructed our wind farms aren’t available to tend site to effect repairs such as blade or gearbox replacements.

With the advances in heavy lift vessel designs and the sheer scale of their ever-changing footprint, it’s more than likely at some point you’ll need to open up the envelope that was originally surveyed for locating the Jack Ups spud cans and ensuring no risk of potential UXO before placing them on the seabed.

We are experts in deploying survey solutions to widen the grid around Wind Turbine Generator locations. Deployment of Uncrewed surface vessels with Multibeam, sub bottom profiler and towed Magnetometer, provide the data sets required for our Geophysicists and UXO consultants to examine the location and provide ALARP sign off.