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    • 31. 发明申请
    • DOWNHOLE SAFETY JOINT
    • 井下安全接头
    • US20130319655A1
    • 2013-12-05
    • US13488348
    • 2012-06-04
    • Roger L. SchultzBrock Watson
    • Roger L. SchultzBrock Watson
    • E21B17/06
    • E21B17/06E21B17/042
    • A downhole safety joint for use in a wellbore, including an upper tubular member having an upper threaded end and a lower external threaded section; a lower tubular member having a lower threaded end and an upper interior threaded section for engaging with the lower external threaded section to form a break joint, the break joint having one or more of a maximum compressive stress limit and a tensile stress limit; and one or more circumferential stress reliefs disposed into the outer diameter of at least one of the upper tubular member and the lower tubular member for transmitting a side load applied to the break joint to one or more of the circumferential stress reliefs less than one or more of the compressive stress limit and the tensile stress limit.
    • 一种用于井眼的井下安全接头,包括具有上螺纹端和下外螺纹段的上管状构件; 具有下螺纹端的下管状构件和用于与下外螺纹部分接合以形成断裂接头的上内螺纹部分,所述断裂接头具有最大压应力极限和拉应力极限中的一个或多个; 以及设置在所述上​​管状构件和所述下管状构件中的至少一个的外径中的一个或多个周向应力释放件,用于将施加到所述断裂接头的侧向载荷传递到小于一个或多个的所述周向应力释放的一个或多个 的压缩应力极限和拉伸应力极限。
    • 32. 发明授权
    • Jarring method and apparatus using fluid pressure to reset jar
    • Jarring方法和装置使用流体压力重置罐
    • US08550155B2
    • 2013-10-08
    • US13044785
    • 2011-03-10
    • Roger L. SchultzAndrew M. FergusonMichael L. Connell
    • Roger L. SchultzAndrew M. FergusonMichael L. Connell
    • E21B31/107E21B31/113
    • E21B31/1135
    • A method and apparatus for delivering repetitive jarring impacts to a stuck object downhole. The jarring tool is deployed on coiled tubing or other tubular well conduit, and fluid pressure is used to cycle the jar without reciprocating the well conduit at the wellhead. The tool includes a hydraulic reset assembly. The hydraulic chamber is in fluid communication with the flow path through the tool. Thus, when the internal fluid pressure inside the tool exceeds the external pressure in the well, the fluid pressure drives the piston in the hydraulic chamber to urge the tool toward the contracted position. In this way, the reset assembly can overcome the tendency of fluid pressure to extend the tool. The reset assembly can be configured to balance or equalize the extension pressure, to prevent undesired cocking of the tool, or to overcome the extension pressure to contract the tool for recocking the jar mechanism.
    • 一种用于向井下的被卡住的物体传送重复的振动冲击的方法和装置。 刺耳工具部署在连续油管或其他管状井管道上,并且使用流体压力来循环罐,而不会在井口往复运动。 该工具包括液压复位组件。 液压室与通过工具的流动路径流体连通。 因此,当工具内的内部流体压力超过井内的外部压力时,流体压力驱动液压室中的活塞以将工具推向收缩位置。 以这种方式,复位组件可以克服流体压力延伸工具的倾向。 复位组件可以被配置为平衡或均衡延伸压力,以防止工具的不期望的起动,或者克服延伸压力以收缩工具以重新装回罐机构。
    • 36. 发明授权
    • Jarring method and apparatus using fluid pressure to reset jar
    • Jarring方法和装置使用流体压力重置罐
    • US08365818B2
    • 2013-02-05
    • US13471881
    • 2012-05-15
    • Roger L. SchultzAndrew M. FergusonMichael L. Connell
    • Roger L. SchultzAndrew M. FergusonMichael L. Connell
    • E21B31/107E21B31/113
    • E21B31/1135
    • A method and apparatus for delivering repetitive jarring impacts to a stuck object downhole. The jarring tool is deployed on coiled tubing or other tubular well conduit, and fluid pressure is used to cycle the jar without reciprocating the well conduit at the wellhead. A hydraulic reset assembly is included. The hydraulic chamber is in fluid communication with the flow path through the tool. Thus, when the internal fluid pressure inside the tool exceeds the external pressure in the well, the fluid pressure drives the piston in the hydraulic chamber to urge the tool toward the contracted position. In this way, the reset assembly can overcome the tendency of fluid pressure to extend the tool. The reset assembly can be configured to equalize the extension pressure, to prevent undesired cocking of the tool, or to overcome the extension pressure to contract the tool for recocking the jar mechanism.
    • 一种用于向井下的被卡住的物体传送重复的振动冲击的方法和装置。 刺耳工具部署在连续油管或其他管状井管道上,并且使用流体压力来循环罐,而不会在井口往复运动。 包括液压复位组件。 液压室与通过工具的流动路径流体连通。 因此,当工具内的内部流体压力超过井内的外部压力时,流体压力驱动液压室中的活塞以将工具推向收缩位置。 以这种方式,复位组件可以克服流体压力延伸工具的倾向。 复位组件可以被配置为使延伸压力相等,以防止工具的不期望的起动,或者克服延伸压力以收缩工具以重新装回罐机构。
    • 37. 发明申请
    • Jarring Method and Apparatus Using Fluid Pressure to Reset Jar
    • Jarring方法和使用流体压力重置罐的装置
    • US20130000909A1
    • 2013-01-03
    • US13471881
    • 2012-05-15
    • Roger L. SchultzAndrew M. FergusonMichael L. Connell
    • Roger L. SchultzAndrew M. FergusonMichael L. Connell
    • E21B31/113
    • E21B31/1135
    • A method and apparatus for delivering repetitive jarring impacts to a stuck object downhole. The jarring tool is deployed on coiled tubing or other tubular well conduit, and fluid pressure is used to cycle the jar without reciprocating the well conduit at the wellhead. A hydraulic reset assembly is included. The hydraulic chamber is in fluid communication with the flow path through the tool. Thus, when the internal fluid pressure inside the tool exceeds the external pressure in the well, the fluid pressure drives the piston in the hydraulic chamber to urge the tool toward the contracted position. In this way, the reset assembly can overcome the tendency of fluid pressure to extend the tool. The reset assembly can be configured to equalize the extension pressure, to prevent undesired cocking of the tool, or to overcome the extension pressure to contract the tool for recocking the jar mechanism.
    • 一种用于向井下的被卡住的物体传送重复的振动冲击的方法和装置。 刺耳工具部署在连续油管或其他管状井管道上,并且使用流体压力来循环罐,而不会在井口往复运动。 包括液压复位组件。 液压室与通过工具的流动路径流体连通。 因此,当工具内的内部流体压力超过井内的外部压力时,流体压力驱动液压室中的活塞以将工具推向收缩位置。 以这种方式,复位组件可以克服流体压力延伸工具的倾向。 复位组件可以被配置为使延伸压力相等,以防止工具的不期望的起动,或者克服延伸压力以收缩工具以重新装回罐机构。