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    • 8. 发明授权
    • Flow control valve for injection systems
    • 注射系统流量控制阀
    • US07640990B2
    • 2010-01-05
    • US11379177
    • 2006-04-18
    • Donald RossYves Loretz
    • Donald RossYves Loretz
    • E21B34/06
    • E21B34/08
    • A flow control valve for use inside a wellbore. In one implementation, the flow control valve may include a housing, a chamber disposed inside the housing and an entry port disposed at a first end of the chamber. The entry port may be configured to allow fluid to enter into the chamber. The flow control valve may further include an exit port disposed at a second end of the chamber. The second end may be opposite of the first end and the exit port is configured to allow fluid to flow out of the chamber. The flow control valve may further include a check valve assembly disposed between the entry port and the exit port. The check valve may be configured to allow fluid to flow from the entry port to the exit port and to prevent fluid to flow from the exit port to the entry port.
    • 用于井眼内部的流量控制阀。 在一个实施方案中,流量控制阀可以包括壳体,设置在壳体内部的室和设置在室的第一端处的入口。 入口可以被配置成允许流体进入腔室。 流量控制阀还可以包括设置在室的第二端处的出口。 第二端可以与第一端相对,并且出口被构造成允许流体流出室。 流量控制阀还可以包括设置在入口和出口之间的止回阀组件。 止回阀可以被配置为允许流体从入口端口流到出口,并且防止流体从出口端口流到进入端口。
    • 10. 发明申请
    • Alternate Path Indexing Device
    • 备用路径索引设备
    • US20070251697A1
    • 2007-11-01
    • US11380769
    • 2006-04-28
    • Yves LoretzDonald RossDavid Reed
    • Yves LoretzDonald RossDavid Reed
    • E21B34/10
    • E21B23/004E21B34/10
    • An embodiment of a method of shifting a valve between a plurality of flow condition positions, includes the steps of providing a mechanical indexer device in operational connection with a valve, the indexer device including a primary path defining a sequence through a plurality of valve positions at and between open and closed and a detent moveable along the primary path; providing at least one alternate path from a point along the primary path to a preceding position on the primary path along the sequence; shifting the valve to a subsequent position in the sequence; and shifting the valve to the preceding position in the sequence.
    • 一种在多个流动状态位置之间移动阀的方法的实施例包括提供与阀操作连接的机械分度器装置的步骤,所述分度器装置包括通过多个阀位置限定顺序的主路径 并且在打开和关闭之间以及沿着主路径可移动的制动器; 提供从所述主路径的点到沿着所述序列的所述主路径上的前一位置的至少一条备用路径; 将阀门按顺序移动到随后的位置; 并按顺序将阀移至前一位置。