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Emergency valve assembly for extraction wells, well equipped with said valve and process for managing an extraction well with said valve under emergency conditions
Emergency valve assembly for extraction wells, well equipped with said valve and process for managing an extraction well with said valve under emergency conditions
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机译:用于提取井的应急阀组件,其装备有所述阀,以及在紧急情况下利用所述阀管理提取井的方法
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摘要
The emergency valve assembly (5) for extraction wells according to the invention comprises A) an external housing (50) and B) a rotating stopper (54). The passthrough duct (52) is arranged for the passage of a production and/or drilling line arranged for containing and carrying, through at least one relative pipe (9), extraction fluids such as, for example, petroleum, oil, water, sludge, rock debris and/or earth, natural gas, or other fluids extracted from an underground reservoir. The valve (5) also comprises a stopper drive (56), arranged for actuating the rotating stopper (54) making it rotate so as to shear the production or perforation line passing through it, in particular shearing the pipe (9) and closing the pass-through duct (52). The pass-through duct (52, 520) has a minimum passage section having a diameter equal to or greater than seven inches. It provides an effective additional safety measure in the case of emergencies.
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