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Presented at May 1988 Meeting in Bruges Belgium by Eginhard Berger of Linde AG.
A gas liquefaction shuttle (GLS) system is proposed for the development of offshore and onshore natural gas fields. It comprises one or more LNG (Liquefied Natural Gas) carriers with built-in baseload liquefaction facilities shuttling between production and receiving terminals. The power unit on such a carrier, one of the major cost items, can be used both for compressor drive during the LNG production period, and for ship propulsion during the transportation of the LNG to the receiving terminal.
Since only gas has to be transferred to the carrier at the production site, the GLS system avoids the loading of LNG, which is considered to be one of the most severe technical obstacles and operational risk factors of previous offshore LNG concepts.
The attractiveness of the GLS system is enhanced by the option to convert cheap laid-up LNG carriers. This is demonstrated by the results of a preliminary technical and economic investigation.