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1. 发明授权

US06318470B1 Recirculatable ball-drop release device for lateral oilwell drilling applications 有权
标题翻译：用于侧向油井钻井应用的可循环球囊释放装置
公开(公告)号：US06318470B1
公开(公告)日：2001-11-20
申请号：US09504569
申请日：2000-02-15
申请人： Chi-Huang Michael Chang , James W. Estep , Albert C. Odell, II
发明人： Chi-Huang Michael Chang , James W. Estep , Albert C. Odell, II
IPC分类号： E21B2300
CPC分类号： E21B17/06 , E21B23/04
摘要： A method for disconnecting tubular members and a ball-drop release device including an upper housing connected to tubing and a lower housing connected to a bottom hole assembly. The upper housing includes a recess end having grooves, and the lower housing includes an extension end having splines that fit into the upper housing grooves. The splined connection is designed to resist drilling motor backup torque and prevent the release mechanism from locking up. In the pre-release position, a ball sleeve is disposed within the extension and held in place by shear screws. To actuate the device, a ball, preferably having a density equal to the density of the drilling fluid, is dropped into the well and pumped to engage the ball sleeve. The ball seats with the ball sleeve whether the well bore is disposed vertically, laterally, or sloped upwardly. Once the ball seats, pressure builds behind the sleeve until the shear screws shear. The ball sleeve moves into a recess in the lower housing thereby making the upper and lower housings separable. Before disconnecting the upper and lower housings, fluid flows into the well through recirculation ports on the lower end of the ball sleeve. After separating the upper and lower housings, a fishing tool can grapple the extension to retrieve the lower housing and bottom hole assembly when necessary. When the fishing tool is attached, flow can be resumed into the well through the ball sleeve recirculation ports to aid in retrieval.
摘要翻译：一种用于断开管状构件的方法和一种球囊释放装置，包括连接到管道的上部壳体和连接到底部孔组件的下部壳体。上壳体包括具有凹槽的凹陷端，并且下壳体包括具有装配到上壳体凹槽中的花键的延伸端。花键连接设计用于抵抗钻机电机的后备力矩，防止释放机构锁定。在预释放位置，球套被设置在延伸部内并通过剪切螺钉保持就位。为了致动装置，优选地具有等于钻井液密度的密度的球落入井中并被泵送以与球套接合。球座是否具有滚珠套筒，无论井筒是垂直，侧向还是向上倾斜设置。一旦球座，压力就在套筒的后面建立直到剪切螺丝剪切。球套移动到下壳体中的凹部中，从而使得上壳体和下壳体可分离。在断开上壳体和下壳体之间，流体通过球套筒下端的再循环端口流入井中。在分离上壳体和下壳体之后，钓鱼具可以抓住延伸部，以便在必要时取出下壳体和底孔组件。当连接钓鱼工具时，可以通过球套再循环端口将流量恢复到井中，以帮助检索。

2. 发明授权

US07584655B2 Formation tester tool seal pad 有权
标题翻译：地层测试仪工具密封垫
公开(公告)号：US07584655B2
公开(公告)日：2009-09-08
申请号：US11756241
申请日：2007-05-31
申请人： Anthony H. van Zuilekom , Chi-Huang Michael Chang , Sue-Lee Luo Chang, legal representative , Arian Abbas , Bruce W. Mackay
发明人： Anthony H. van Zuilekom , Chi-Huang Michael Chang , Arian Abbas , Bruce W. Mackay
IPC分类号： E21B49/10
CPC分类号： E21B49/088 , E21B49/10
摘要： A formation tester tool includes a formation tester tool body having a surface, a formation probe assembly located within the formation tester tool body, the formation probe assembly including a piston reciprocal between a retracted position and an extended position beyond the surface of the formation tester tool body, the piston being slidingly retained within a chamber, and a seal pad located at an end of the piston, wherein the seal pad includes a first inner sealing element and a second outer sealing element.
摘要翻译：地层测量仪工具包括具有表面的地层测试仪工具主体，位于地层测试仪工具主体内的地层探测器组件，地层探测器组件包括在缩回位置和超过地层测试仪工具表面的延伸位置之间往复运动的活塞活塞滑动地保持在腔室内，密封垫位于活塞的端部，其中密封垫包括第一内部密封元件和第二外部密封元件。

3. 发明申请

US20080295588A1 FORMATION TESTER TOOL SEAL PAD 有权
标题翻译：形成测试工具密封垫
公开(公告)号：US20080295588A1
公开(公告)日：2008-12-04
申请号：US11756241
申请日：2007-05-31
申请人： Anthony H. van Zuilekom , Chi-Huang Michael Chang , Sue-Lee Luo Chang , Arian Abbas , Bruce W. Mackay
发明人： Anthony H. van Zuilekom , Chi-Huang Michael Chang , Sue-Lee Luo Chang , Arian Abbas , Bruce W. Mackay
IPC分类号： E21B49/10
CPC分类号： E21B49/088 , E21B49/10
摘要： A formation tester tool includes a formation tester tool body having a surface, a formation probe assembly located within the formation tester tool body, the formation probe assembly including a piston reciprocal between a retracted position and an extended position beyond the surface of the formation tester tool body, the piston being slidingly retained within a chamber, and a seal pad located at an end of the piston, wherein the seal pad includes a first inner sealing element and a second outer sealing element.
摘要翻译：地层测量仪工具包括具有表面的地层测试仪工具主体，位于地层测试仪工具主体内的地层探测器组件，地层探测器组件包括在缩回位置和超过地层测试仪工具表面的延伸位置之间往复运动的活塞活塞滑动地保持在腔室内，密封垫位于活塞的端部，其中密封垫包括第一内部密封元件和第二外部密封元件。

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