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    • 1. 发明授权
    • Dual closure system for well system
    • 双闭环系统
    • US09494015B2
    • 2016-11-15
    • US13703963
    • 2011-12-15
    • James Dan Vick, Jr.Jimmie Robert Williamson, Jr.Bruce Edward Scott
    • James Dan Vick, Jr.Jimmie Robert Williamson, Jr.Bruce Edward Scott
    • E21B34/14E21B43/12E21B34/10E21B34/00
    • E21B34/14E21B34/101E21B34/102E21B43/128E21B2034/005
    • Certain aspects and embodiments of the present invention are directed to a dual closure system disposed within a wellbore and capable of preventing the production of fluids from a fluid-producing formation to the surface. The dual closure system can include a passive closure mechanism and a subsurface safety valve coupled to an electric submersible pump positioned within a passageway defined by the tubing string. The passive closure mechanism and the subsurface safety valve can prevent production of fluid in the absence of the subsurface safety valve. The subsurface safety valve can be positioned within a passageway defined by a tubing string such that the subsurface safety valve can apply force to the passive closure mechanism. The force applied to the passive closure mechanism can maintain the passive closure mechanism in an open position, allowing movement of fluid to the surface in the presence of the active closure mechanism.
    • 本发明的某些方面和实施例涉及一种设置在井孔内并能够防止流体从流体产生地层产生到表面的双闭合系统。 双闭合系统可以包括被动闭合机构和与位于由管柱限定的通道内的电潜泵连接的地下安全阀。 被动闭合机构和地下安全阀可以防止在没有地下安全阀的情况下生产流体。 地下安全阀可以定位在由油管柱限定的通道内,使得地下安全阀可以向被动闭合机构施加力。 施加到被动闭合机构的力可以将被动闭合机构保持在打开位置,允许流体在主动闭合机构的存在下移动到表面。
    • 3. 发明授权
    • Actuation assembly and method for actuating a downhole tool
    • 用于致动井下工具的致动组件和方法
    • US08555986B2
    • 2013-10-15
    • US12889375
    • 2010-09-23
    • Jack Gammill ClemensWesley Neil LudwigJames Dan Vick, Jr.
    • Jack Gammill ClemensWesley Neil LudwigJames Dan Vick, Jr.
    • E21B33/00
    • E21B23/01E21B23/06E21B33/134
    • An actuation assembly (100, 300) for actuating a downhole tool (200) having a tool housing (202) and an actuation member (208). The actuation assembly (100, 300) includes a downhole power unit (100) and a stroke extender (300). A power unit housing (150) is operably associated with an extender housing (302). A moveable shaft (130) of the power unit (100) is operably associated with an extender mandrel (304). The extender housing (302) is operably associated with the tool housing (202) and the actuation member (208). The extender mandrel (304) is operably associated with the actuation member (208) such that oscillatory movement of the moveable shaft (130) relative to the power unit housing (150) causes oscillatory movement of the extender mandrel (304) relative to the extender housing (302) which causes progressive movement in one direction of the actuation member (208) relative to the tool housing (202), thereby actuating the downhole tool (200).
    • 用于致动具有工具壳体(202)和致动构件(208)的井下工具(200)的致动组件(100,300)。 致动组件(100,300)包括井下动力单元(100)和行程延长器(300)。 功率单元壳体(150)可操作地与扩展器壳体(302)相关联。 功率单元(100)的可移动轴(130)可操作地与增量心轴(304)相关联。 扩展器壳体(302)可操作地与工具壳体(202)和致动构件(208)相关联。 增量心轴(304)与致动构件(208)可操作地相关联,使得可移动轴(130)相对于动力单元壳体(150)的振荡运动导致增量心轴(304)相对于增量器的振荡运动 壳体(302),其相对于工具壳体(202)在致动构件(208)的一个方向上引起逐渐运动,从而致动井下工具(200)。