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DNV to issue new guidelines on offshore gas terminals

LNG Industry,

DNV is to issue a new set of Offshore technical guidance rules on a range of issues affecting the owners of FSRUs, FPSOs and SRVs covering structural design, regulatory compliance, conversion and technology qualification amongst others. The purpose being to provide owners in this relatively new field with sound technical advice to aid construction and help them avoid some of the pitfalls.

According to Conn Fagan, DNV’s Business development manager for offshore gas projects, the FLNG segment is developing rapidly. “A number of FSRUs and SRVs are currently in operation, and many more floating import gas terminals are now in different phases of development,” he says. “At the same time, the first LNG FPSOs are entering into detailed design phase, and we expect construction of these units to begin in the next two years.”

Mr Fagan says that while DNV’s previous Rules and guidance issued in 2007 were well received by the industry at the time, the rapid development of this segment required a fresh look. “We recognised a demand for an up-to-date, fully comprehensive overview of the many unique technical challenges faced by designers and yards in this segment, covering both design and construction,” he says. “We are confident this guidance will be a useful tool for the industry.”

Broad range of issues
DNV’s Offshore technical guidance on gas terminals will cover a broad range of issues, including classification and regulatory compliance, conversion of gas ships, structural design, sloshing assessment, fatigue assessment, corrosion issues, regasification and liquefaction plant, assessment of novel concepts and qualification of technology, among others.

In addition, the issues generally discussed in the Guidance may be adapted to address related options such as LPG units, GTL units and CNG units.

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