Offshore Construction

Services to Offshore Construction and Installation Support

Kunskoye Platform Sakhalin
Photo © OSSeas Ltd

Pipelay vessel and GBS
Photo courtesy Allseas Ltd

Oil Platform with Supplu Boat

Photo courtesy of Videoray ®

Micro ROV Services can provide ROV services to offshore construction, whether a multi-million dollar oil platform or a harbour reef light installation.

We can help you to

• Reduce safety exposure
• Significantly reduce costs
• Save project time
• Reduce weather downtime
• Provide full detailed video documentation
• Fulfil regulatory compliance requirements

We can achieve this by providing

• Rapid deployment to anywhere the project needs eyes
• Observation of subsea construction activities
• Safety observation of diving activities
• Access to spaces divers or other ROVs cannot achieve
• NDT inspection of steel and concrete
• Cathodic protection analysis
• Pre installation seabed clearance surveys
• Post installation subsea facilities inspection
• Post installation debris clearance surveys

Historically in the offshore oil and natural gas industry, large, expensive, and cumbersome work-class ROVs have handled the bulk of observation tasks on offshore rigs and vessels. Recently the demand for a more portable, affordable, easily and quickly deployable, and "disposable" observation class ROV has been prevalent to supplement the large work-class ROV in simple observation tasks.

Micro ROV Services can deploy it's ROV to any location offshore to carry out any support role necessary, from General Visual Inspections (GVIs) to providing illumination or safety watch for divers. From Integrity testing such as cathodic Protection (CP) to sampling for radiation the ROV has many useful functions.

It's small size is not a handicap, in fact it is a major advantage because of the high power to mass ratio. It can work in currents that many larger ROVs cannot, thus saving downtime on expensive vessel or construction spreads. In the scale of cost a major offshore installation it can even be considered expendable, and has been used to watch a structure come down on a subsea to within inches of the seabed. Something a larger multi million dollar ROV simply could not do.

It’s size and portability mean it can be moved around the project and quickly deployed to ANY vessel in the field. Yes, that is ANY vessel, from a supply boat to a zodiac and operate anywhere from 300m to less than one metre water depth. The ROV's small size means it can go many places and investigate and record things a larger ROV can only peer at from a distance, or a diver certainly cannot venture for access or safety reasons

VideoRay ROVs have been deployed at offshore sites around the world from Siberia to the Gulf of Mexico and used to investigate and survey FPSOs and moorings, Jack up rigs, LNG jetties, Platforms, subsea installations and pipelines to quickly capture high quality video.

• Engineers find the video invaluable to their underwater placement efforts.
• Divers like the safety of having someone up top watching them and the lights to illuminate the workplace.
• Project Managers value the added quality and safety measures provided by the ROV.

The Videoray Micro ROV

Weighing in at only 4.8 kgs (10.6 lbs) and being only 36 cm (14.2") long and 27 cm (11") wide the Pro-4 is small, light and easily deployed. In fact it is literally "throw it in the water. At only 21cm (8.5") high it can fit easily into most submerged pipelines, intakes or outfalls and spaces which are unreachable by a diver.

Small but powerful the Videoray Pro-4 can travel at 4.2 knots, see with the high resolution TV quality camera under the bright illumination of two Halogen lights. If the water is murky, there is the Blue View sonar sweeping the area and showing in sharp relief what’s ahead.

Found something? if it's small enough the manipulator can pick it up, if not the smart tether allows us to position it for later recovery by divers.

Want to measure or test something? the range of accessories allows on the spot testing of cathodic protection, determine metal thickness, detect radiation, sample water quality, and take measurements with a laser.

The ROV is a boon to the underwater world – for photographers, scientists, environmentalists, search and rescue, law enforcement, customs and excise, dam inspections, tank inspections, commercial and offshore oil and gas installation and monitoring, fisheries, recreational divers, hull inspections for yachties and commercial shipping, inspection of wharves, piers, moorings and harbour facilities and many more uses which are being discovered daily.