Compressor rerating keys North Sea platform enhancement

Roland Pike Arun Karuppasamy g3baxi Partnership Ltd. London John Gill g3baxi Partnership Ltd. Muscat, Oman A compression train on Hess Denmark's South Arne platform in the Danish North Sea required rerating to meet a planned production profile. The train consisted of motor driven, fixed-speed back-to-back flash-gas compressors. The project included designing for low-volume flows while accommodating a large variation in gas composition, due to the intermittent operation of a future flare-gas recovery system. Compressor design for low-molecular-weight gas limits operation at high molecular weight, with the converse also being true. Therefore the objective was to design a compressor that co...

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