At Oceaneering AS in Norway, we are submerged in the depths of the oceans. We quickly take leave, not physically, but mentally, of the new halls of the company and surrender, like a piece of floating debris in the current, to the interesting explanations of the underwater experts.
Oceaneering is specialised in subsea operations by use of Remote Operated Vehicles (ROV) (also known as underwater robots). At the subsea worksite of an oilfield, the ROV system is normally the first thing into the sea. ROV pilots direct the ROV from a control room to set the rig’s anchors. Then the ROV crew surveys the seabed to oversee the environment and monitor any obstructions before commencing work. Oceaneering support all kinds of subsea work, from site inspection to subsea equipment installation and drilling tasks. Each ROV system is maneuvered by the Oceaneering crew from a control room or van on the surface asset.
Virtually, the garage of the underwater robot, which is supplied with energy via the yellow cable (tether). The movable coil is guided via the drylin® linear bearings.
The ROV starts his expedition in a kind of garage, which is launched from a boat or rig. The robot remains connected to the garage throughout its use via a cable, in order to be supplied with energy and to transmit the acquired data. This means that for the connection cable to always unwind in the centre of the garage, the coil must be movable. This problem under water compelled the designers to rely on selflubricating, corrosion-free and thus offshore-compatible drylin® linear bearings. Of course, the maintenance is dispensed with.
The rail has already rusted, but it does not do anything to the liner from igus®. The material is dirtresistant, has a self-cleaning effect and does not get much affected.
The ROV is a bit like a baby in the womb, whereby the mother is the ship and the garage would be the placenta. The baby remains with the mother and is supplied with all the nutrients through the umbilical cord (yellow cable).
Corrosion-free, self-lubricating bearing technology from tribo-polymers is the natural friend of every underwater robot (seen above left).
Thank you for the insight into the underwater world and wish you successful expeditions further on.
igus® and the “iglidur® on tour” team