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    • 1. 发明申请
    • Downhole System and Apparatus Incorporating Valve Assembly with Resilient Deformable Engaging Element
    • 井下系统和装置结合具有弹性变形啮合元件的阀组件
    • US20130068474A1
    • 2013-03-21
    • US13423154
    • 2012-03-16
    • Raymond HofmanBryan FitzhughWilliam Sloane Muscroft
    • Raymond HofmanBryan FitzhughWilliam Sloane Muscroft
    • E21B34/08
    • E21B34/08E21B34/14E21B43/14E21B43/26
    • An apparatus, system and method relating to a valve assembly for use in a subterranean well for oil, gas, or other hydrocarbons. The valve assembly comprises an engaging element with a resilient portion having a first shape when a first pressure differential is applied across the engaging element in a direction and a second shape when a second pressure differential is applied across the element in the direction; a receiving element having sealing section; wherein the engaging element is engagable with the first receiving element to substantially prevent the flow of fluids through the sealing section a pressure differential is applied to the engaging element that is less than a first pressure differential; wherein the engaging element is extrudable through the first receiving element by applying a second pressure differential that is greater than the first pressure differential.
    • 一种用于油,气体或其他烃的地下井中使用的阀组件的装置,系统和方法。 所述阀组件包括具有弹性部分的接合元件,当在所述方向上跨过所述元件施加第二压力差时,当在所述接合元件上施加第一压力差时,所述接合元件具有第一形状; 具有密封部的接​​收元件; 其中所述接合元件可接合所述第一接收元件以基本上防止流体流过所述密封部分,所述接合元件的压力差小于第一压力差; 其中所述接合元件可通过施加大于所述第一压力差的第二压力差而通过所述第一接收元件挤出。
    • 2. 发明申请
    • Flow bypass device and method
    • 流量旁路装置及方法
    • US20140158368A1
    • 2014-06-12
    • US13694509
    • 2012-12-07
    • Raymond HofmanWilliam Sloane MuscroftBryan Fitzhugh
    • Raymond HofmanWilliam Sloane MuscroftBryan Fitzhugh
    • E21B34/08
    • E21B34/14E21B2034/007
    • Devices, systems and methods are disclosed for re-directing fluid flow from the interior of tubing placed in a well to the exterior of the tubing by use of selectively actuatable valves operable by engagement of a plug on a plug seat. The devices, systems, and methods disclosed may provide a flowback bypass for the flow of fluids around obstructions in the tubing when those obstructions occur at a predicted location within the tubing. The systems, devices and methods may also include a locking system operable by, among other things, plug and plug seat valves, and such locking system may be used to prevent opening of the flowback bypass until after a predetermined event has occurred.
    • 公开了一种装置,系统和方法,用于通过使用通过将插头接合在插头座上而可操作的选择性致动阀来重新引导流体从布置在井中的管道内部流到管道外部。 所公开的装置,系统和方法可以在管道内的预测位置处发生这些障碍物时,为管道周围的流体流动提供回流旁路。 系统,装置和方法还可以包括可以通过插头和插头座阀操作的锁定系统,并且可以使用这种锁定系统来防止回流旁路的打开,直到发生预定事件之后。
    • 4. 发明申请
    • Hydraulically-Actuated Explosive Downhole Tool
    • 液压致动炸药井下工具
    • US20150107819A1
    • 2015-04-23
    • US14120428
    • 2013-07-26
    • Raymond HofmanWilliam Sloane MuscroftSteve Jackson
    • Raymond HofmanWilliam Sloane MuscroftSteve Jackson
    • E21B43/263
    • E21B43/263
    • A downhole tool comprising a first section having an internal sidewall defining at least a portion of a flowpath, and a ported outer sidewall and an explosive having at least a portion within said first section. An annular portion has at least one chamber having an end positioned adjacent to the explosive and an inlet providing a communication path to said flowpath. A detonator assembly is located within each chamber proximal to the explosive such that detonation of the assembly causes detonation of the explosive. A firing pin is propelled toward the detonation assembly by providing communication between the chamber and the flow path, causing a pressure differential between the pressure isolated ends of the firing pin.
    • 一种井下工具,包括具有限定流路的至少一部分的内侧壁的第一部分,以及移动的外侧壁和具有在所述第一部分内的至少一部分的爆炸物。 环形部分具有至少一个腔室,其具有邻近爆炸物定位的端部以及提供到所述流动路径的连通路径的入口。 雷管组件位于靠近炸药的每个腔室内,使得组件的爆震引起爆炸物的爆炸。 通过提供腔室和流动路径之间的连通,从而在撞击销的压力隔离端之间产生压力差,将击球销朝向引爆组件推进。
    • 6. 发明申请
    • Fracturing System and Method
    • US20120097397A1
    • 2012-04-26
    • US12909446
    • 2010-10-21
    • Raymond HofmanSteve JacksonDaniel Jesus RojasWilliam Sloane Muscroft
    • Raymond HofmanSteve JacksonDaniel Jesus RojasWilliam Sloane Muscroft
    • E21B43/26E21B34/00
    • E21B43/26E21B34/14E21B43/12E21B43/14E21B2034/005
    • A system and method for fracturing a stage of a multiple stage hydrocarbon production well. One embodiment of the system comprises at least one ported sleeve assembly and a flapper assembly positioned downwell of the ported sleeve assembly. Each ported sleeve assembly comprises a ported housing having a plurality of ports disposed radially therethrough; a first sleeve at least partially within the ported housing and moveable between a first position and a second position, wherein in the first position the first sleeve is radially positioned between the plurality of ports and the flowpath. The first sleeve has an exterior surface, a first slot formed in the first exterior surface, and a first engagement surface having a first inner diameter. A first guiding member is fixed relative to the ported housing and positionable within the first slot. A first compression spring positioned between the a upper end of the first sleeve and the ported housing, the first compression spring being under compression when the first sleeve is in the first position. The flapper assembly comprises a flapper seal; a flapper plate rotatable between an opened position and a closed position, wherein in the opened position fluid flow in the downwell direction through the flapper seal is at least substantially unimpeded, and wherein in the closed position the flapper plate is engaged against the flapper seal to at least substantially prevent fluid flow through the flapper seal in the downwell direction; a second sleeve moveable between a first position and a second position, wherein in the first position at least a portion of the second sleeve is radially positioned between the flapper plate and the flowpath, the second sleeve having a second exterior surface, a second slot formed in the second exterior surface, and a second engagement surface having a second inner diameter; a second guiding member fixed relative to the flapper seal and positionable within the second walking jay slot; and a second compression spring positioned between an upper end of the second sleeve and the flapper seal, the second compression spring being under compression when the second sleeve is in the second position.
    • 7. 发明授权
    • Downhole tool
    • 井下工具
    • US09133684B2
    • 2015-09-15
    • US13462810
    • 2012-05-02
    • Raymond HofmanWilliam Sloane Muscroft
    • Raymond HofmanWilliam Sloane Muscroft
    • E21B34/10E21B34/06E21B34/00
    • E21B34/063E21B34/102E21B34/103E21B2034/007
    • A downhole tool comprising an inner sleeve with a plurality of sleeve ports and a housing positioned radially outwardly of the inner sleeve and having a plurality of housing ports, with the housing and inner sleeve partially defining a space radially therebetween. The space is occupied by a shifting sleeve. A fluid path extends between the interior flowpath of the tool and the space. A fluid control device, occupies at least portion of the fluid path, and may selectively permit fluid flow, and thus pressure communication, into the space to cause a differential pressure across the shifting sleeve. When a sufficient differential pressure is reached, the shifting sleeve is moved from a first position to a second position, which opens the communication paths through the housing and sleeve ports between the interior flowpath and exterior of the tool.
    • 一种井下工具,其包括具有多个套筒端口的内套筒和位于所述内套筒的径向外侧并具有多个壳体端口的壳体,所述壳体和所述内套筒在其间径向地限定空间。 这个空间由换档套管占据。 流体路径在工具的内部流动路径和空间之间延伸。 流体控制装置占据流体路径的至少一部分,并且可以选择性地允许流体流动并且因此压力连通到空间中,从而在换档套筒上产生压差。 当达到足够的压差时,换档套筒从第一位置移动到第二位置,该第二位置打开通过壳体的连通路径和在工具的内部流路和外部之间的套筒端口。
    • 10. 发明申请
    • Downhole Tool
    • 井下工具
    • US20120279723A1
    • 2012-11-08
    • US13462810
    • 2012-05-02
    • Raymond HofmanWilliam Sloane Muscroft
    • Raymond HofmanWilliam Sloane Muscroft
    • E21B34/14E21B34/06E21B34/08
    • E21B34/063E21B34/102E21B34/103E21B2034/007
    • A downhole tool comprising an inner sleeve with a plurality of sleeve ports and a housing positioned radially outwardly of the inner sleeve and having a plurality of housing ports, with the housing and inner sleeve partially defining a space radially therebetween. The space is occupied by a shifting sleeve. A fluid path extends between the interior flowpath of the tool and the space. A fluid control device, occupies at least portion of the fluid path, and may selectively permit fluid flow, and thus pressure communication, into the space to cause a differential pressure across the shifting sleeve. When a sufficient differential pressure is reached, the shifting sleeve is moved from a first position to a second position, which opens the communication paths through the housing and sleeve ports between the interior flowpath and exterior of the tool.
    • 一种井下工具,其包括具有多个套筒端口的内套筒和位于所述内套筒的径向外侧并具有多个壳体端口的壳体,所述壳体和所述内套筒在其间径向地限定空间。 这个空间由换档套管占据。 流体路径在工具的内部流动路径和空间之间延伸。 流体控制装置占据流体路径的至少一部分,并且可以选择性地允许流体流动并且因此压力连通到空间中,从而在换档套筒上产生压差。 当达到足够的压差时,换档套筒从第一位置移动到第二位置,该第二位置打开通过壳体的连通路径和在工具的内部流路和外部之间的套筒端口。