July 2007

Special Report: Liquefied Natural Gas Developments

LNG import terminal on a gravity base structure offshore

An alternative design to a land-based facility is a compact, modular construction resting on the seabed

Kumar, S., Consultant; Nakachi, I., Ishikawajima-Harima Heavy Industries Co. Ltd.

Although there is no recorded major incident involving an LNG tanker or in an operating LNG terminal caused by storage or transport of LNG, strong opposition continues to building land-based LNG import terminals in many coastal states in the US. A good alternative to land-based receiving terminals can be the use of a concrete gravity base structure (GBS) located offshore and resting on the seabed. LNG is stored inside the GBS, and the process equipment is located on the top deck of the GBS in a very compact design. The GBS can be built onshore and towed out to its final location—offshore but within 50 mi to 60 mi from the shore and in 15-m to 25-m depths. The GBS design combines techn

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