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First "Integrated Software Dependent Systems" notation - Ocean Greatwhite rig

Saturday, August 13, 2016

Ocean Greatwhite, the world's largest semi-submersible drilling rig, has been certified with DNV GL's "Integrated Software Dependent Systems" (ISDS) notation, which is designed for systems whose performance is dependent on the overall behaviour of the integrated software components.

ISDS certifies that the software systems have been put together using a process which helps rig operators to minimise software integration errors.

The process helps operators avoid delays in projects caused by problems with complex integrated software systems.

The process ensures that software and integration issues are identified and resolved earlier in project design stages.

It is also a different way to verify that the final equipment is fit for purpose - rather than just focussing on a final review of documents and the installations, as it is usually done, it involves reviewing the working methods and processes while the equipment is being built.

DNV GL says that high specification mobile drilling units sometimes get 30 per cent down time in their first year of operations.

ISDS is a systematic framework for ensuring that the systems achieve the required reliability, availability, maintainability and safety.

'We expect that the operational performance of Ocean Greatwhite will demonstrate how the ISDS notation can contribute to increasing the reliability of the complex systems onboard,' says Paal Johansen, Vice President and Regional Director, Americas at DNV GL.

The Ocean Greatwhite is 123m long and 78m wide. It was built at Hyundai Heavy Industries in Ulsan, South Korea. It will be owned by Diamond Offshore of Houston, and chartered to BP. It will operate in the Great Australian Blight. It is designed for drilling in harsh environments. It can drill in water depths of 3000m, and drill to depths of 10,670m.








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