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    • 3. 发明授权
    • Hydraulically-actuated propellant stimulation downhole tool
    • 液压驱动推进剂刺激井下工具
    • US08381807B2
    • 2013-02-26
    • US12637225
    • 2009-12-14
    • Steve JacksonStan Wall
    • Steve JacksonStan Wall
    • E21B43/00
    • E21B43/263
    • A hydraulically-actuated propellant stimulation downhole tool for hydrocarbon wells. According to one embodiment of the invention, the tool comprises a first section having an internal sidewall defining at least a portion of a flowpath, and a ported outer sidewall. A propellant volume having at least a portion within said first section. An annular portion has at least one pressure chamber having an end positioned adjacent to the propellant volume and an inlet providing a communication path to said flowpath. A detonator assembly is located within each pressure chamber proximal to the propellant volume such that detonation of the assembly causes detonation of the propellant volume. A firing pin is propelled toward the detonation assembly by providing communication between the pressure chamber and the flow path, causing a pressure differential between the pressure isolated ends of the firing pin.
    • 用于油气井的液压致动推进剂刺激井下工具。 根据本发明的一个实施例,该工具包括第一部分,其具有限定流路的至少一部分的内侧壁和端口的外侧壁。 一种具有在所述第一部分内的至少一部分的推进剂体积。 环形部分具有至少一个压力室,其具有邻近推进剂体积定位的端部以及提供到所述流动路径的连通路径的入口。 雷管组件位于靠近推进剂体积的每个压力室内,使得组件的爆震引起推进剂体积的爆炸。 通过提供压力室和流动路径之间的连通,使撞针朝向引爆组件推进,引起撞击销的压力隔离端之间的压力差。
    • 5. 发明授权
    • Downhole tool with expandable seat
    • 井下工具带可扩展座椅
    • US08479822B2
    • 2013-07-09
    • US12702169
    • 2010-02-08
    • Raymond HofmanSteve Jackson
    • Raymond HofmanSteve Jackson
    • E21B34/00
    • E21B34/14E21B34/06E21B34/063
    • A downhole tool comprising a housing having at least one flow port disposed providing a communication path between the interior and exterior of the sleeve. A sleeve assembly has an expandable seat and an inner sleeve, and is moveable within the housing between a first position and a second position, wherein in the first position the sleeve assembly is radially positioned between the flow ports and the flowpath to substantially prevent fluid communication. Shearable port inserts are positioned within the flow ports, with each port insert having a shearable portion extending into the interior of the housing and engaging the sleeve assembly when the inner sleeve is in said first position.
    • 一种井下工具,其包括壳体,所述壳体具有至少一个设置在所述套筒的内部和外部之间的连通路径的流动端口。 套筒组件具有可扩张座和内套筒,并且可在壳体内在第一位置和第二位置之间移动,其中在第一位置,套筒组件径向地位于流动端口与流路之间,以基本上防止流体连通 。 可剪切的端口插入件位于流动端口内,每个端口插入件具有延伸到壳体内部的可剪切部分,并且当内套筒处于所述第一位置时与该套筒组件接合。
    • 6. 发明申请
    • Self-Orienting Fracturing Sleeve and System
    • 自定向压裂套管及系统
    • US20120152523A1
    • 2012-06-21
    • US13228518
    • 2011-09-09
    • Raymond HofmanSteve Jackson
    • Raymond HofmanSteve Jackson
    • E21B43/16
    • E21B43/26E21B17/1057E21B17/1078
    • A self-orientating fracturing system locatable in a tubing string, the system comprising a swivel sub having a top connection and a lower connection radially rotatable relative to said top connection; at least one ported sleeve positionable downwell of said swivel sub, said at least one ported sleeve defining a flowpath and comprising a ported housing having an outer surface with at least one planar engagement surface and at least one port providing a communication path to the interior of said housing; and an insert moveable within said ported housing between a first position and a second position, wherein in said first position said insert is positioned radially between said at least one port and said flowpath. The system further comprises a centralizer having a outer surface with at least one flute formed therein, said centralizer positionable downwell of said swivel sub.
    • 一种定位在油管柱中的自动定向压裂系统,该系统包括具有顶部连接件的旋转零件和相对于所述顶部连接件可径向转动的下部连接件; 所述至少一个移动套筒限定所述旋转接头的至少一个移动套筒,所述至少一个移动套筒限定流路并且包括具有至少一个平面接合表面的外表面的移动壳体,以及至少一个端口, 说房屋 以及可在所述移动壳体内在第一位置和第二位置之间移动的插入件,其中在所述第一位置,所述插入件径向地定位在所述至少一个端口和所述流路之间。 该系统还包括具有外表面的扶正器,该外表面上形成有至少一个凹槽,所述扶正器可定位在所述旋转底座的下部。
    • 7. 发明申请
    • Hydraulically-Actuated Propellant Stimulation Downhole Tool
    • 液压驱动推进剂刺激井下工具
    • US20110139433A1
    • 2011-06-16
    • US12637225
    • 2009-12-14
    • Steve JacksonStan Wall
    • Steve JacksonStan Wall
    • E21B43/00
    • E21B43/263
    • A hydraulically-actuated propellant stimulation downhole tool for hydrocarbon wells. According to one embodiment of the invention, the tool comprises a first section having an internal sidewall defining at least a portion of a flowpath, and a ported outer sidewall. A propellant volume having at least a portion within said first section. An annular portion has at least one pressure chamber having an end positioned adjacent to the propellant volume and an inlet providing a communication path to said flowpath. A detonator assembly is located within each pressure chamber proximal to the propellant volume such that detonation of the assembly causes detonation of the propellant volume. A firing pin is propelled toward the detonation assembly by providing communication between the pressure chamber and the flow path, causing a pressure differential between the pressure isolated ends of the firing pin.
    • 用于油气井的液压致动推进剂刺激井下工具。 根据本发明的一个实施例,该工具包括第一部分,其具有限定流路的至少一部分的内侧壁和端口的外侧壁。 一种具有在所述第一部分内的至少一部分的推进剂体积。 环形部分具有至少一个压力室,其具有邻近推进剂体积定位的端部以及提供到所述流动路径的连通路径的入口。 雷管组件位于靠近推进剂体积的每个压力室内,使得组件的爆震引起推进剂体积的爆炸。 通过提供压力室和流动路径之间的连通,使撞针朝向引爆组件推进,引起撞击销的压力隔离端之间的压力差。