Function
The cable burial vessel undertakes cable burial post laying of the cable on the sea bed.
Who supplies them
Cable burial vessels are provided by a number of offshore vessel operators such as Canyon Offshore (Helix ES), Global Marine and Van Oord Offshore Wind.
Key facts
Burial vessels vary in size based on the required burial tools to be mobilised and the water depth. Generally, most types of vessels can be utilised as long as burial tools can be mobilised. Dynamically positioned vessels are generally used although barges may be used in shallower waters in the case of near-shore burial work.
Post-lay burial is undertaken using a Trenching ROV [I5.4.3]. Vertical injector and jetting sled [I5.4.4] can also be used.
What’s in it
- Crane or A-frame
- Personnel transfer gangway
- Burial tools and equipment