Page 39: of Offshore Engineer Magazine (Mar/Apr 2020)

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The Jansz-Io subsea compression project supported by power equipment on an unmanned semisubmersible. t’s not just about new platforms. Frames is working with ONEgas - the combined business unit of Shell

UK and Shell’s Dutch subsidiary Nederlandse

I Aardolie Maatschappij (NAM) – on converting various manned Dutch North Sea platforms to NUIs or removing functionality from existing platforms to cut maintenance costs using walk to work vessels allowing them to stay on-site longer to complete their programs. Frames says its been helping companies de-man platforms for ?ve years, with service vessels instead of helicopter ?ights to access facilities.

The main challenge with this work, which is mostly around de-complexing facilities, is to engineer and install highly reliable hydraulic systems which need as little maintenance as possible against a competitive price, says the ?rm. “It is important to understand that in case of a malfunction you can’t simply ?y to the platform, you need to be 100% reliable,” the ?rm told OE. “After this de-complexing the regular service activities for an unmanned platform will be stretch over a longer period from one to two years or even longer in the near future.”

Source: Man Energy Solutions different mindset. It’s about making decisions and challenging to get rid of maintenance.” regulatory requirements and changing company speci?cations Åsgard does this by using a compressor design that doesn’t on the client and contractor side. For unmanned facilities, need lube oil, they’re hermetically sealed and have a magnetic you need to get rid of everything you don’t need. Start with bearing. Topside systems cheaper systems that use open shafts the core functionality. If it’s a relatively simple process plat- and dry gas seals which are more commoditised and require form with a separator and pump and compressor this facility maintenance. It’s a choice. Another key element is going all shall support pump and compressor and everything else needs electric, adds Nyborg, because electric actuators and motors are to be argued in. it’s an ‘argue in’ methodology’. Then you need more reliable than hydraulic and pneumatic ones, but also be- to select robust equipment, with inherent reliability and safety cause they provide much better condition monitoring capability. march/april 2020 OFFSHORE ENGINEER 39