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1. 发明授权

US08973662B2 Downhole debris removal tool capable of providing a hydraulic barrier and methods of using same 有权
标题翻译：能够提供水力障碍物的井下碎屑去除工具及其使用方法
公开(公告)号：US08973662B2
公开(公告)日：2015-03-10
申请号：US13528910
申请日：2012-06-21
申请人： Yang Xu , Ying Qing Xu , Gregory L. Hern
发明人： Yang Xu , Ying Qing Xu , Gregory L. Hern
IPC分类号： E21B31/08
CPC分类号： E21B27/00
摘要： A downhole tool for removing debris from a wellbore comprises a body having a bore, a collection member, and a means for creating a hydraulic barrier within a wellbore annulus. The hydraulic barrier within the wellbore annulus restricts upward movement of a debris laden fluid within the wellbore annulus causing the debris laden fluid to be directed toward the collection member. Thus, the hydraulic barrier facilitates removal of debris from the wellbore.
摘要翻译：用于从井眼去除碎屑的井下工具包括具有孔的主体，收集构件以及用于在井眼环内产生液压屏障的装置。井筒环内的液压屏障限制了井筒环内的载满碎屑的流体的向上运动，导致碎屑流体被引向收集构件。因此，液压屏障有助于从井眼去除碎屑。

2. 发明授权

US08919452B2 Casing spears and related systems and methods 有权
标题翻译：套管矛和相关系统和方法
公开(公告)号：US08919452B2
公开(公告)日：2014-12-30
申请号：US13280113
申请日：2011-10-24
申请人： Larry T. Palmer , Dennis E. Kroll , Gregory L. Hern
发明人： Larry T. Palmer , Dennis E. Kroll , Gregory L. Hern
IPC分类号： E21B19/10 , E21B19/06
CPC分类号： E21B19/06
摘要： A casing spear may comprise a mandrel, and a slip assembly comprising at least one slip. The at least one slip may comprise a generally wedge-shaped surface positioned and configured to cause the at least one slip to move radially outwards relative to the mandrel in response to a rotation of the mandrel and a torque acting on the slip assembly, the torque opposing the rotation of the mandrel. Additionally, a method of operating a casing spear may comprise inserting a casing spear into a casing, rotating a mandrel of the casing spear, applying a torque to a slip assembly of the casing spear with the casing, opposing the rotation of the mandrel, and applying a force in a radial direction to at least one slip of a slip assembly of the casing spear in response to the torque.
摘要翻译：套管矛可以包括心轴和包括至少一个滑移的滑动组件。所述至少一个滑动件可以包括大致楔形表面，所述表面定位和构造成响应于所述心轴的旋转和作用在所述滑动组件上的扭矩而使所述至少一个滑动件相对于所述心轴径向向外移动，所述扭矩与心轴的旋转相反。此外，操作套管矛的方法可以包括将套管矛插入到壳体中，旋转套管矛的心轴，将扭矩施加到壳体矛与套筒的滑动组件相对的心轴的旋转，以及响应于扭矩，将径向力施加到壳体矛的滑动组件的至少一个滑移。

3. 发明申请

US20130341027A1 DOWNHOLE DEBRIS REMOVAL TOOL AND METHODS OF USING SAME 审中-公开
标题翻译：下车拆卸工具及其使用方法
公开(公告)号：US20130341027A1
公开(公告)日：2013-12-26
申请号：US13528907
申请日：2012-06-21
申请人： YING QING XU , Gregory L. Hern , Yang Xu
发明人： YING QING XU , Gregory L. Hern , Yang Xu
IPC分类号： E21B31/08 , E21B31/00
CPC分类号： E21B27/005
摘要： A downhole tool for removing debris from a wellbore comprises a screen member, an incoming fluid accelerator, and a cavity for capturing debris. The incoming fluid accelerator is disposed above the screen and accelerates the flow of an incoming fluid through the accelerator and into a screen bore. The incoming fluid then exits the bottom of the tool, mixes with wellbore fluid containing debris to form a combination fluid that is transported upward within the wellbore annulus. A pressure differential between the incoming fluid flowing within the screen bore and the wellbore annulus pulls the combination fluid containing the debris into the cavity where the debris is captured. Fluid and/or debris not blocked by the screen flows through the screen into the screen bore to be circulated downward and out of the tool where it can pick up additional debris for capture.
摘要翻译：用于从井眼去除碎屑的井下工具包括筛构件，进入流体加速器和用于捕获碎屑的空腔。进入的流体加速器设置在筛网上方并加速进入的流体通过加速器的流动并进入筛孔。进入的流体然后离开工具的底部，与含有碎屑的井筒流体混合以形成在井筒环中向上输送的组合流体。在筛孔内流入的进入流体与井筒环之间的压力差将含有碎屑的组合流体吸入碎片被捕获的腔中。未被屏幕阻挡的流体和/或碎屑流过筛网进入筛孔，以向下循环并离开工具，在那里可以拾取附加的碎屑进行捕获。

4. 发明申请

US20130341017A1 DOWNHOLE DEBRIS REMOVAL TOOL CAPABLE OF PROVIDING A HYDRAULIC BARRIER AND METHODS OF USING SAME 有权
标题翻译：提供液压障碍物的可拆卸工具及其使用方法
公开(公告)号：US20130341017A1
公开(公告)日：2013-12-26
申请号：US13528910
申请日：2012-06-21
申请人： YANG XU , Ying Qing Xu , Gregory L. Hern
发明人： YANG XU , Ying Qing Xu , Gregory L. Hern
IPC分类号： E21B43/38 , E21B31/08
CPC分类号： E21B27/00
摘要： A downhole tool for removing debris from a wellbore comprises a body having a bore, a collection member, and a means for creating a hydraulic barrier within a wellbore annulus. The hydraulic barrier within the wellbore annulus restricts upward movement of a debris laden fluid within the wellbore annulus causing the debris laden fluid to be directed toward the collection member. Thus, the hydraulic barrier facilitates removal of debris from the wellbore.
摘要翻译：用于从井眼去除碎屑的井下工具包括具有孔的主体，收集构件以及用于在井眼环内产生液压屏障的装置。井筒环内的液压屏障限制了井筒环内的载满碎屑的流体的向上运动，导致碎屑流体被引向收集构件。因此，液压屏障有助于从井眼去除碎屑。

5. 发明申请

US20120111556A1 Casing Spears and Related Systems and Methods 有权
标题翻译：套管矛和相关系统与方法
公开(公告)号：US20120111556A1
公开(公告)日：2012-05-10
申请号：US13280113
申请日：2011-10-24
申请人： Larry T. Palmer , Dennis E. Kroll , Gregory L. Hern
发明人： Larry T. Palmer , Dennis E. Kroll , Gregory L. Hern
IPC分类号： E21B19/16
CPC分类号： E21B19/06
摘要： A casing spear may comprise a mandrel, and a slip assembly comprising at least one slip. The at least one slip may comprise a generally wedge-shaped surface positioned and configured to cause the at least one slip to move radially outwards relative to the mandrel in response to a rotation of the mandrel and a torque acting on the slip assembly, the torque opposing the rotation of the mandrel. Additionally, a method of operating a casing spear may comprise inserting a casing spear into a casing, rotating a mandrel of the casing spear, applying a torque to a slip assembly of the casing spear with the casing, opposing the rotation of the mandrel, and applying a force in a radial direction to at least one slip of a slip assembly of the casing spear in response to the torque.
摘要翻译：套管矛可以包括心轴和包括至少一个滑移的滑动组件。所述至少一个滑动件可以包括大致楔形表面，所述表面定位和构造成响应于所述心轴的旋转和作用在所述滑动组件上的扭矩而使所述至少一个滑动件相对于所述心轴径向向外移动，所述扭矩与心轴的旋转相反。此外，操作套管矛的方法可以包括将套管矛插入到壳体中，旋转套管矛的心轴，将扭矩施加到壳体矛与套筒的滑动组件相对的心轴的旋转，以及响应于扭矩，将径向力施加到壳体矛的滑动组件的至少一个滑移。

6. 发明授权

US08118101B2 Ball catcher with retention capability 有权
标题翻译：具有保留能力的捕球器
公开(公告)号：US08118101B2
公开(公告)日：2012-02-21
申请号：US12511148
申请日：2009-07-29
申请人： Jonathan F. Nelson , Gregory L. Hern
发明人： Jonathan F. Nelson , Gregory L. Hern
IPC分类号： E21B34/06
CPC分类号： E21B23/04
摘要： A ball catcher is designed to stop balls that are the same size or different sizes at an inlet on a seat that is connected to a movable biased sleeve. Once the ball or other shaped object lands at the seat the flow around it increases differential pressure on the seat and sleeve and displaces them against the bias. The ball goes into a surrounding annular space and cannot exit. A preferably spiral sleeve guide the movement of the balls in the annular space so that efficient use of the annular space is made to maximize the number of balls that can be captured per unit length of the annular space. As soon as the ball enters the annular space the sleeve shifts back to the original position to stop the next ball at the inlet. Once in the annular space, the balls cannot escape if there is a flow reversal. The central passage remains open to pass other tools and flow.
摘要翻译：球捕获器被设计成在连接到可移动偏置套筒的座椅上的入口处停止具有相同尺寸或不同尺寸的球。一旦球或其它成形物体落在座椅上，则围绕它的流动增加了座椅和套筒上的压差，并使它们抵抗着偏压。球进入周围的环形空间，不能退出。优选螺旋套管引导球在环形空间中的移动，从而使环形空间的有效使用最大化可以使每单位长度的环形空间捕获的球数。一旦球进入环形空间，套筒就会移回原来的位置，以阻止入口处的下一个球。一旦在环形空间中，如果存在流动反转，则球不能逃逸。中央通道仍然可以通过其他工具和流动。

7. 发明申请

US20110284211A1 Retaining and Isolating Mechanisms for Magnets in a Magnetic Cleaning Tool 有权
标题翻译：磁性清洁工具中磁体的保持和隔离机制
公开(公告)号：US20110284211A1
公开(公告)日：2011-11-24
申请号：US12782249
申请日：2010-05-18
申请人： Gregory L. Hern , Larry T. Palmer , Jonathan F. Nelson
发明人： Gregory L. Hern , Larry T. Palmer , Jonathan F. Nelson
IPC分类号： E21B31/06
CPC分类号： E21B31/06 , E21B17/1078 , E21B37/00
摘要： A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel. A removable insert resides upon the tool mandrel. The insert retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel.
摘要翻译：一种用于从井眼或其他周围井下管道内收集金属碎屑和材料的磁回收工具。该工具包括工具心轴。可移动的插入物位于工具心轴上。插入件将多个单独的磁体保持在围绕心轴的固定阵列或矩阵中。

8. 发明授权

US07562703B2 Annular flow shifting device 有权
标题翻译：环形流动装置
公开(公告)号：US07562703B2
公开(公告)日：2009-07-21
申请号：US11497992
申请日：2006-08-02
申请人： Larry T. Palmer , Gregory L. Hern , Steve Rosenblatt
发明人： Larry T. Palmer , Gregory L. Hern , Steve Rosenblatt
IPC分类号： E21B31/08
CPC分类号： E21B27/005 , E21B37/02 , E21B37/10
摘要： A wellbore cleanup tool collects debris when moved in one direction downhole. A flow diverter is extended for such flow diversion when debris is collected. When running the tool in the opposite direction in the wellbore, the flow diverter is in whole or in part articulated to retract so as to reduce resistance to fluid that passes around the outside of the tool. A segmented diverter can have fixed and movable components that are guided. The movable components can become longitudinally offset from the fixed components for movement in the direction where maximum flow bypass around the outside of the tool is desired. In an alternative embodiment, the diverter segments can all be movable on an inclined track to retract against a bias force for fluid bias with movement of the tool in the opposite direction allowing the bias to push the segments on the inclined track for diversion of debris laden fluid into a capture volume in the tool.
摘要翻译：井下清理工具在井下一个方向移动时收集碎屑。当收集碎片时，流量分流器被扩展用于这种流动分流。当在井眼中以相反方向运行工具时，流动分流器整体地或部分地铰接以缩回，以便降低对穿过工具外部的流体的抵抗力。分段分流器可以具有被引导的固定和可移动部件。可移动部件可以从固定部件纵向地偏移，以便在期望围绕工具外部的最大流动旁路的方向上移动。在替代实施例中，分流器段可以在倾斜的轨道上都可移动，以抵抗用于流体偏压的偏压力而退回，该工具在相反方向上的运动允许偏压推动倾斜轨道上的段，流体进入工具中的捕获体积。

9. 发明申请

US20080190620A1 Single cycle dart operated circulation sub 失效
标题翻译：单循环飞镖操作循环
公开(公告)号：US20080190620A1
公开(公告)日：2008-08-14
申请号：US11705367
申请日：2007-02-12
申请人： Lisa L. Posevina , Gregory L. Hern
发明人： Lisa L. Posevina , Gregory L. Hern
IPC分类号： E21B41/00 , E21B34/00
CPC分类号： E21B21/103
摘要： A circulating sub is run in with the circulating port closed. A dart blocks a central passage and moves two concentric pistons in tandem to open the circulation port while retaining the dart. The outer piston shoulders out in the circulation port open position. A second dart lands on the first and with applied pressure moves the inner piston relative to the shouldered outer piston to close the circulation port and only then discharge both darts. Subs can be used in tandem as long as higher located subs accept larger darts than lower subs and preferably the two darts for each sub are the same size. The ejected darts can be used to pressure actuate a downhole tool like a packer.
摘要翻译：循环子程序运行在循环端口关闭。飞镖阻挡中央通道并串联移动两个同心活塞以打开循环口，同时保持飞镖。外部活塞在循环端口打开位置。第二个飞镖首先降落，施加的压力使内部活塞相对于肩部的外部活塞移动以关闭循环端口，然后仅释放两个飞镖。只要较高的位置接受较大的飞镖而不是较低的下限，并且优选地，每个子的两个飞镖的大小相同，则可以串联使用。弹出的飞镖可用于压力启动井下工具，如封隔器。

10. 发明授权

US06763753B1 Hydraulic wireline cutter 有权
标题翻译：液压线切割机
公开(公告)号：US06763753B1
公开(公告)日：2004-07-20
申请号：US09680579
申请日：2000-10-06
申请人： Kenneth A. Brumley , John P. Davis , Gregory L Hern , David B. Haughton
发明人： Kenneth A. Brumley , John P. Davis , Gregory L Hern , David B. Haughton
IPC分类号： B26D728
CPC分类号： E21B31/16 , E21B29/04 , Y10T83/04 , Y10T83/8821 , Y10T83/8841 , Y10T83/8857 , Y10T83/8858
摘要： A combination tool for attaching to a stuck wireline tool, then cutting the wireline just above the stuck tool with a hydraulically driven cutter, allowing the wireline to be pulled out of the hole before fishing out the stuck tool. A side door can be provided on the work string, to allow rerouting of the wireline outside the work string, after which the stuck tool can be unstuck and repositioned within the well bore for completion of the downhole operation of the tool, prior to cutting the wireline free from the downhole tool.
摘要翻译：一种用于连接到卡住的钢丝绳工具的组合工具，然后用液压驱动的切割器在刚刚卡住的工具上方切割钢丝绳，允许将钢丝绳从孔中拉出，然后再将其卡在卡住的工具上。可以在工作线上设置侧门，以允许电线在工作线外部重新布线，然后在切割之前，卡住的工具可以在井眼内解开并重新定位在井眼内以完成工具的井下操作。电缆免于井下工具。

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