N-Sea, the Inspection, Maintenance and Repair (IMR) specialist, has recently completed its inaugural diving scope with the innovative TUP Diving System® (Transfer Under Pressure).

The diving scope involved x-mas tree assistance with the deployment of the TUP Diving System® for client ONE (Oranje-Nassau Energie) on its project, “L6 Diving Services” at the location L6D in the North Sea.

For this project, N-Sea stationed the closed bell system on the Jack-Up rig the “Paragon C46-1” between July and September. The project team included a 24/7 operations crew at the site of this challenging scope, during which the system proved its full potential.

The TUP Diving System® has been designed and built in-house by N-Sea, and comprises a 3 man bell, launch and recovery system, triple lock decompression chamber, gas diver control (Air/Trimix/Nitrox) and hyperbaric rescue craft. During the last year the pioneering system has undergone a complete refit and has been converted to allow it to be used as a mobile system, deployable from most DPII support vessels and platforms.

Gerard Keser, CEO of N-Sea, said: “The TUP Diving System® enables N-Sea to offer a safe, complete and very cost effective solution to customers. The system is safe, because there is no surface decompression interval and the system allows protected transfer through the splash zone. It’s an enhanced proven solution that increases the workable bottom time.”

Theo Bergers, COO of ONE added that “key factors for choosing the TUP Diving System® were safety and workability.”

N-Sea is known for its innovative work as an independent offshore subsea contractor, specialising in IMR services for the international oil and gas, renewable and telecom/utility industries, as well as for civil contracting communities. With particular focus on North Sea activity, N-Sea provides offshore and survey services to major operators and service companies alike.

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