Meeting extreme challenges through unique technology

摘要

Rotary Gate Valve provides ideal solution to long distance tie-back to shore subsea gas/condensate field developments. There are very few genuine new developments in the valve world, new ideas are mostly developed along a theme, however, one completely new concept in valve design is the Rotary Gate Valve (RGV) developed by Weir Valves & Controls UK Ltd. - a part of the Weir Power & Industrial Division in the UK. The rotary gate valve has been successfully supplied to FMC StatoilHydro for the Ormen Lange project in Norway where there was a particular problem in controlling regenerated Mono Ethylene Glycol (MEG) injection to prevent hydrate formation. Subsea equipment has been supplied for over 25 years, with more and more discoveries being declared viable in deep and ultra deep waters. The Ormen Lange project, situated off the North-western coast of Norway, was developed in water depths of I 100 m on the edge of the Arctic Circle and has an ambient sea temperature which can reach -2℃. Gas produced from the field contains entraine' water that, if left untreated, would form hydrate and potentially block up the process lines. Gas from the Ormen Lange project is piped to an onshore terminal, which is 120 km from the subsea template In Australia, GE Oil & Gas has used the valve for Chevron's Gorgon and Jansz fields, the most significant gas projects to date for this region. Valves were specified with the specific flow requirements for the fields and the physical layout of the choke module designed by GE Oil & Gas.