Galloper offshore wind farm | export cable shore landing * full version

[Music] [Music] for the next 24 hours we will depart here from from Felson north where we have loaded 47 or 48 kilometers of 50 cable depending on the progress on on deck we will we will depart it probably at around 16 to 18 hundred we will sail of the north sea channel outbound fire the email looks towards the UK coast and there we will put out a vessel in an anchor spread okay we're just completing the the lord out phase with the export cable and so the export cable now is fully loaded into the carousel and we just finalized the testing so the optical fibres for their transmission has been tested with an OTDR and the aluminium cause have been fully tested with a TDR and once we get our CoA of approval and we can leave port and we will move over to the south east coast of the UK to least and where we'll sell the vessel with an anchor spread predetermined and we will commence the cable pulling operations at the beach that location [Music] we have a team of four surveyors to online is one offliner from one party chief myself we are responsible for the surface positioning of the vessel on the project as well as the subsea positioning of the vessel so we basically position the vessel on the project where where we need to be where the cable needs to be the next 24 hours we will be deploying anchors so our role in this will be raising and sending the information to the anchor management tugs which we have to on this project we have installed some equipment as well on their bridge to try and get where they need to put the anchors one once the anchors are set into the into the software and from there they can steer the vessel based on on those anchors so the next 24 hours we will be deploying those seven anchors the plow is basically about subsea burial cable we intake a cable at the front of the plow with the bell mouth we monitor the tension and the cable exits at the rear end by the depressor this is the port side skids that we have on the plow hydraulically operated by two cylinders from the control van and the idea is that we just these plow well the skids to 5 to 10 centimeters as the plow is taut forward by these two tow bridles this area is the front of the plow this is referred to as the bell mouth the cable will enter the plow by these two pieces of equipment which you're known as the horizontal cable tines when this is referred to as the trough as you can see where the Rope runs over the cable during operations will run over the top of this area and exit the plow by the depressor and again this is monitored via a load cell in the indication will be in the control barn and it gives us an idea as to what tension the cable is during operations the cable will run it through the plow and it will exit the plow via this depressor this depressor will be low down during operations and the cable will exit from this area from the bottom underneath this area of the depressor and onto the seabed and there's a load cell monitoring the tension of this depressor so we know how much tension is on the cable during plant operations [Music] [Applause] [Music] [Music] [Music] [Music] [Music] [Music] [Music] [Music] [Applause] [Applause] [Music] [Music] [Music] the last 24 hours we've we've pulled the plow back to the beach we've then pulled the messenger wire back from the beach to the vessel we've waited for slack water pulled the cable of shore flow to the cable ashore and we've just released the cable onto the seabed next to the plow - why in the interests of health and safety we didn't want to put divers into the water so we wanted to make a diverse operation so we used a mechanism where we could automatically deflate the sea serpent and lower the cable to the seabed the next stage now is where we have a plan in place with the plow team in the ocm and the vessel to take their plow and and start burying from the beach to protect the cable this export route is 43 kilometres long so this is their very beginning of a campaign where we need to get this cable buried - to protect against its external influence and mobile seabed so we start pulling away bearing to a target burial depth we have to ensure that our lay back with the plow is correct for a good container Airi over tow winch and we'll start plowing away [Music] [Applause]

Channel: Boskalis Subsea

Views: 297,533

Rating: 4.5607142 out of 5

Keywords: vbms, boskalis, galloper, wind farm, cable, cables, export cables, landfall, shore landing, shorelanding, remotely, seaserpent, diverless

Id: ulmA8HsTSyY

Length: 9min 31sec (571 seconds)

Published: Thu Nov 03 2016