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    • 7. 发明授权
    • Dual-purpose steam injection and production tool
    • 双用途蒸汽注入和生产工具
    • US09027642B2
    • 2015-05-12
    • US13115677
    • 2011-05-25
    • John S. SladicBrian SternamanChristopher Hall
    • John S. SladicBrian SternamanChristopher Hall
    • E21B43/00E21B43/24E21B41/00
    • E21B43/24E21B41/0078
    • A dual-purpose tool can be used for steam injection and production in a wellbore. A mandrel deploys in the wellbore to communicate steam in a steam injection operation and to communicate production fluid from the wellbore during production operations. A distributor on the mandrel has nozzles for injecting steam into the wellbore and has production valves for producing fluids from the wellbore. A screen can be used to screen production fluids as they are produced through the production valves. The nozzles can also allows produced fluids to flow into the mandrel, or backflow valves can be used to restrict flow of produced fluids through the nozzles while permitting the flow of steam out of the nozzles.
    • 一种双用途工具可用于在井筒中进行蒸汽注入和生产。 心轴在井筒中部署以在蒸汽注入操作中传递蒸汽并且在生产操作期间从井眼传达生产流体。 心轴上的分配器具有用于将蒸汽注入井眼的喷嘴,并且具有用于从井眼产生流体的生产阀。 屏幕可用于筛选通过生产阀门生产的生产流体。 喷嘴还可以允许产生的流体流入心轴,或者可以使用回流阀来限制所产生的流体通过喷嘴的流动,同时允许蒸汽从喷嘴流出。