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ROVs, Asset Integrity Management & Why They Are Made For Each Other!

ROVs, Asset Integrity Management & Why They Are Made For Each Other!

28 Feb 2019 | Posted By Praveen

Underwater structures are being built everywhere across the world now. What started with the construction of underwater research stations in the 1960s has given rise to a revolution that has engulfed even developing nations now. Countries are now increasingly adopting the initiative to build structures underneath water. This is so the problems relating to land availability and transportation are effectively taken care of. Industries such as offshore Oil and Gas, Shipping, Ports, Dams & Power plants are seeing an increased number of underwater structures coming up. Over the last decade or so, India has seen thousands of such structures come up in the oceans and near the coastal belts. These underwater structures with all their pros come with their own challenges too. The structures need to be monitored and maintained so they don’t fail to fulfil their desired objectives. Underwater Structures and their ongoing woes! A few major problems these underwater structures face are as follows: Budget – Building beneath water is a costly affair mainly due to the usage of heavy machinery, devices and the fact that the services…...

 
(Planys ROV Mike performing Dam Inspection)

What makes ROV better than diver?

5 Feb 2019 | Posted By Praveen

What an ROV does is eliminates the need for human presence in the water, which in most cases, makes inspections simpler and safer to conduct than a diving operation or even a manned submersible. These vehicles are ideal for scour inspection is a type of structural inspection, confined spaces, deep water inspections, or deployment in any condition unsafe for diver entry. Judging by the pre/post dive safety precautions and the contingencies that are in place during diving operation, conducting diving inspections underwater is a demanding job that is even considered by some as the most dangerous job. And in this dangerous environment, a lot of multi-tasking is involved on the diver’s part in limited time and with limited endurance. They must be trained camera operators and are responsible for planning, researching, preparing equipment, and capturing the shot – all whilst managing their oxygen mixture levels and manoeuvring in limited visibility. This is why many engineers reviewing the inspection video recordings complain of the recorded footage being out-of-focus and “shaky”. [caption id="attachment_1502" align="alignnone" width="633"] (ROV Pilot and site engineer watching the…...

 
 (ROV Pilot controlling the underwater drone during inspection)

Remotely Operated Vehicles ROVs – A Technological Marvel!

5 Feb 2019 | Posted By Praveen

These unoccupied, highly manoeuvrable underwater robots/ underwater drones are operated by a pilot at the water surface that can access hard-to-reach areas or be used in hazardous conditions to inspect and assess submerged structures. ROVs come in a range of sizes, from that of a small computer to a small truck. The larger ones are rather heavy and require additional equipment such as a crane or a davit to put them over the side of a ship and into the water. [caption id="attachment_1497" align="alignnone" width="722"] (Planys ROV Beluga performing bridge inspection underwater)[/caption] Although the primary purpose of developing ROV’s was for industrial purposes, such as internal and external inspections of underwater pipelines and the structural testing of offshore platforms, ROVs are now being used for many applications, some of them scientific. In such a short time since their implementation in the real world, ROV’s have already proven themselves to be extremely valuable in ocean exploration. So much so, they are also used for educational programs too! This raving success does raise the question of what’s better... The old tried and…...

 
 (Diver conducting underwater inspection)

The Role Of Divers In Underwater Inspections

5 Feb 2019 | Posted By Praveen

When it comes to evaluating the condition of submerged structures, periodic underwater inspections are crucial to keeping the structure safe and dependable. These periodic inspections, primarily conducted in industries like offshore Oil and Gas, Shipping, Ports, Dams & Power plants, are mandatory for most structures under strict guidelines prepared by certification bodies. Such underwater inspections are typically carried out by a competent scuba diving team - your “eyes” underwater, that provides you with the information needed to effectively repair the structure. This does not necessarily result in a higher quality inspection, only a more detailed analysis of information collected by the diving team. [caption id="attachment_1494" align="alignnone" width="719"] (Diver conducting underwater inspection)[/caption] Once a diving operation is completed, the diving team then prepares comprehensive reports derived from their first hand inspection and the corroborating video footage captured by the cameras that are fitted on the divers. Sometimes, if the water is clear enough, the engineer can view the inspection in real time through a live video and audio feed to see what the diver sees. In some cases, the engineer is…...