Bibby Hydromap

  

 

Bibby HydroMap launched the data from the first trials of the d’ROP® system. d’ROP is a Dynamic Remotely Operated Survey Platform that borrows and combines technology and operating principles from existing ROVs, ROTVs and systems from the modern day dredging industry. Launched in 2015, it has the potential to revolutionise productivity in shallow water survey and inspection applications.

Addressing many of the inherent limitations of compact free-flying ROVs and seabed crawler systems, the d’ROP is ideally suited to precision tracking operations in dynamic coastal environments.

They showcased a 3D hologram of d’ROP, along with animation, video and presentations. They also presented a scale Lego model of Bibby Athena, our flagship 27.5m DP1 vessel.

Visitors were invited to take part in their d’ROP challenge, with a chance to win the aforementioned Bibby Athena model. Runners up won a model d’ROP.

d’ROP was launched in 2015 and the media has shown a lot of interest in it as a concept. However, data on its performance has not so far been released. Over the past few weeks they have been running trials for a number of high profile clients in the southern North Sea. After years of research and development and over a year on from its official launch, they are now ready to share the results.

For remote shallow water cable and pipeline survey, the d’ROP excels in providing accurate depth of burial data in areas where compact ROVs struggle with the environmental conditions and work-class ROVs add significant expense. Designed for operation from our 27.5m coastal survey vessel Bibby Athena, the compact system is uniquely designed to operate effectively from 5.0m to 150m water depth.

The d'ROP is deployed vertically beneath the support vessel, deriving vertical position from a heave-compensated winch and combined LARS, with the on-board thrusters maintaining heading and fine adjustments to the lateral position. Maintaining a fixed heading and altitude in relation to a survey line, cable or pipeline provides exceptional line-keeping ability in comparison to traditional mid-size ROV systems. Providing significantly more thrust than an equivalent-sized ROV, the d’ROP's ability to hold station allows it to remain stationary, operate at slow speed for depth of burial surveying, or track at up to 4 knots for acoustic survey.

Whilst the d’ROP was designed primarily for precision tracking of buried cables and pipelines in coastal environments, using proven technology and off-the-shelf components the d’ROP can accept multiple sensors simultaneously.

The beauty of this system is that it is assembled from proven components and has the flexibility to support virtually any survey sensor. It can be considered as an extension of the survey vessel as it allows us to deploy our sensors where they are needed for maximum effectiveness rather than further and further away from the point of interest as water depth increases or environmental conditions deteriorate.

The d’ROP was designed to offer a remotely operated survey platform capable of operating effectively and cost efficiently in dynamic marine environments, whilst accommodating various survey sensors, including the PanGeo SBI. Originally designed for operation from predominantly work-class ROVs, the PanGeo SBI provides a real-time 3D grid view of the sub seabed, accurately imaging buried pipelines, cables and other buried objects. One key benefit of the PanGeo system over traditional pulse-induction technology is that the cable can remain in service throughout survey operations, resulting in a significant cost-saving for the operator.

The system has been designed initially for operation from the company’s newly launched custom-build survey vessel Bibby Athena. Deployed vertically through the vessel’s moonpool, the system relies upon the support vessel for forward propulsion, a bespoke heave-compensated umbilical winch and combined LARS for its vertical control with the on-board thrusters maintaining heading and fine adjustments to the lateral position.

d’ROP was of interest to and use by offshore wind developers and operators; subsea cable contractors and operators; oil and gas operators; UXO consultants; asset integrity managers; and decommissioning contractors.

The company has a long track record in performing shallow vibrocores and CPTs, and more recently, deeper CPTs. This capability is of use by offshore renewables and oil and gas developers, subsea cable and pipeline route engineers.

Their exhibits were interested in the following conference streams: Hydrography, Geophysics and Geotechnics; Marine Renewables; Monitoring Structural Integrity: Understanding Risk and Reliability; Ocean Observing Systems: Marine Technology and Services Sector Role in the Blue Economy; Oil & Gas: What’s next for Ageing Offshore Assets?; and Unmanned Vehicles and Vessels Showcase.

Bibby HydroMap also celebrated its first year anniversary under the Bibby name, exactly one year ago, we rebranded from Osiris Projects and now proudly carry the Bibby name. www.bibbyhydromap.com

 

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