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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。

3. 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。

4. 发明授权

US08739864B2 Downhole multiple cycle tool 有权
标题翻译：井下多循环工具
公开(公告)号：US08739864B2
公开(公告)日：2014-06-03
申请号：US12826020
申请日：2010-06-29
申请人： James Alan Crider , Gregory L. Hern , Charles W. Pleasants
发明人： James Alan Crider , Gregory L. Hern , Charles W. Pleasants
IPC分类号： E21B23/00
CPC分类号： E21B21/103 , E21B34/14
摘要： A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.
摘要翻译：一种在井眼中使用的工具，其包括具有轴向流动孔的壳体和可移动地设置在流动孔内的活塞套筒。该工具可通过具有带球座的活塞的致动机构在第一和第二操作位置之间移动。该工具可以在第一和第二操作位置之间移动，使用可以落在球座上的不同尺寸的致动球。

5. 发明授权

US08356671B2 Tool with multi-size ball seat having segmented arcuate ball support member 有权
标题翻译：多尺寸球座的工具具有分段弧形球支撑构件
公开(公告)号：US08356671B2
公开(公告)日：2013-01-22
申请号：US12860985
申请日：2010-08-23
申请人： Jeremy J. Guillory , Daniel R. Hart , Gregory L. Hern
发明人： Jeremy J. Guillory , Daniel R. Hart , Gregory L. Hern
IPC分类号： E21B34/08 , E21B34/14
CPC分类号： E21B21/103 , E21B23/006 , E21B34/14
摘要： A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat having a partially annular shape with an outer base and a plurality of retaining segments projecting radially inwardly therefrom. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.
摘要翻译：一种在井眼中使用的工具，其包括具有轴向流动孔的壳体和可移动地设置在流动孔内的活塞套筒。该工具可通过具有活塞的致动机构在第一操作位置和第二操作位置之间移动，所述活塞具有球座，其具有部分环形形状，其具有外基部和从其径向向内突出的多个保持段。该工具可以在第一和第二操作位置之间移动，使用可以落在球座上的不同尺寸的致动球。

6. 发明申请

US20120227973A1 Tool with Multisize Segmented Ring Seat 有权
标题翻译：多重分段环座工具
公开(公告)号：US20120227973A1
公开(公告)日：2012-09-13
申请号：US13469852
申请日：2012-05-11
申请人： Daniel R. Hart , Gregory L. Hern , Christopher W. Guidry , Robert S. O'Brien
发明人： Daniel R. Hart , Gregory L. Hern , Christopher W. Guidry , Robert S. O'Brien
IPC分类号： E21B34/14
CPC分类号： E21B21/103 , E21B23/006 , E21B34/063 , E21B34/14
摘要： A wellbore tool which includes a housing having an axial flowbore and a piston sleeve movably disposed within the flowbore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a seat having a plurality of separate arcuate segments. The tool can be moved between first and second operating positions with the use of actuating plugs of different sizes that can be landed upon the seat.
摘要翻译：一种井眼工具，其包括具有轴向流动孔的壳体和可移动地设置在所述流孔内的活塞套筒。该工具可通过具有活塞的致动机构在第一操作位置和第二操作位置之间移动，该活塞具有多个单独的弧形段的座。该工具可以在第一和第二操作位置之间移动，使用可以落在座椅上的不同尺寸的致动插头。

7. 发明申请

US20110315389A1 Downhole Multiple Cycle Tool 有权
标题翻译：井下多周期工具
公开(公告)号：US20110315389A1
公开(公告)日：2011-12-29
申请号：US12826020
申请日：2010-06-29
申请人： James Alan Crider , Gregory L. Hern , Charles W. Pleasants
发明人： James Alan Crider , Gregory L. Hern , Charles W. Pleasants
IPC分类号： E21B34/14
CPC分类号： E21B21/103 , E21B34/14
摘要： A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.
摘要翻译：一种在井眼中使用的工具，其包括具有轴向流动孔的壳体和可移动地设置在流动孔内的活塞套筒。该工具可通过具有带球座的活塞的致动机构在第一和第二操作位置之间移动。该工具可以在第一和第二操作位置之间移动，使用可以落在球座上的不同尺寸的致动球。

8. 发明授权

US06607031B2 Screened boot basket/filter 有权
标题翻译：屏蔽启动篮/过滤器
公开(公告)号：US06607031B2
公开(公告)日：2003-08-19
申请号：US09847916
申请日：2001-05-03
申请人： Gerald D. Lynde , Gregory L. Hern
发明人： Gerald D. Lynde , Gregory L. Hern
IPC分类号： E21B3108
CPC分类号： E21B37/00 , E21B27/005
摘要： A downhole debris filtering apparatus has the flow diverter retracted as the tool is run in. Settling velocity is the rate at which debris will fall through the fluid. Settling velocity is dependent on the density of the fluid and the debris density. If the fluid velocity exceeds the settling velocity, the debris will rise. The restricted annular area outside the screens raises the fluid velocity. Above the cup sleeve, the annular area increases significantly and the fluid velocity is reduce to below the settling velocity to allow debris to settle to the bottom of the tool. On run in, the fluid merely bypasses on the outside of the filter. Large debris will settle into the tool as described. When pulled out of the hole the swab cup/flow diverter is actuated into casing or liner wall contact and a large passage is opened to allow flow though the filter. Small debris that has risen above the tool will be captured as the fluid is filtered through the screen. Another embodiment with a non-retractable cup uses a sliding sleeve valve with a large open area.
摘要翻译：井下碎屑过滤装置在工具运行时具有收缩的分流器。沉降速度是碎屑通过流体落下的速率。沉降速度取决于流体的密度和碎屑密度。如果流体速度超过沉降速度，碎屑将上升。屏幕外部受限制的环形区域提高了流体速度。在杯套之上，环形区域显着增加，并且流体速度降低到低于沉降速度以允许碎屑沉降到工具的底部。在运行时，流体只能绕过过滤器的外部。如上所述，大碎片将沉入工具中。当从孔中拉出时，将拭子杯/流动分流器启动到壳体或衬套壁接触中，并且打开大通道以允许流过过滤器。当液体通过屏幕过滤时，已经上升到工具上方的小碎屑将被捕获。具有不可缩回杯的另一实施例使用具有大开口面积的滑动套筒阀。

9. 发明授权

US5598895A Cutter assembly having a plurality of independently rotatable cutting units thereon 失效
标题翻译：刀具组件，其上具有多个独立可旋转的切割单元
公开(公告)号：US5598895A
公开(公告)日：1997-02-04
申请号：US374808
申请日：1995-01-19
申请人： Llewellan Anderson , Gregory L. Hern
发明人： Llewellan Anderson , Gregory L. Hern
IPC分类号： E21B10/10 , E21B10/12 , E21B10/22 , E21D9/10 , E21B9/08
CPC分类号： E21B10/12 , E21B10/10 , E21B10/22 , E21D9/104
摘要： A rock cutting tool with a plurality of independently rotatable cutter units and with a shaft, a sleeve located around the shaft, and at least two rotatable hubs located around the sleeve. At least one cutter unit is located on each of the two rotatable hubs for rotation about an axis of rotation with respect to a rock-face. Bearings between the sleeve and each of the hubs rotatably support the hubs. The bearings comprise at least one cylindrical roller bearing set and at least one ball bearing set for each hub. Each roller bearing set is located substantially entirely under the cutter unit of its associated hub to absorb radial loads, and each ball bearing set is located remotely from the cutter unit of its associated hub to be isolated from radial loads. The shaft has first and second key receiving openings. The key is located on the interior surface of the sleeve. The key is mateable with the first and second key receiving openings in the shaft whereby the sleeve is rotatable with respect to the shaft from a first position to a second position to disengage the key from the first key receiving opening and engage the key in a second key receiving opening to extend the bearing life.
摘要翻译：一种具有多个可独立旋转的切割器单元并且具有轴，位于轴周围的套筒以及位于套筒周围的至少两个可旋转毂的岩石切割工具。至少一个切割器单元位于两个可旋转轮毂中的每一个上，用于围绕相对于摇滚面的旋转轴线旋转。套筒和每个轮毂之间的轴承可旋转地支撑轮毂。轴承包括至少一个圆柱滚子轴承组和至少一个用于每个毂的球轴承组。每个滚子轴承组件基本上完全位于其相关联的毂的切割器单元下方以吸收径向载荷，并且每个滚珠轴承组远离其相关联的轮毂的切割器单元定位成与径向载荷隔离。轴具有第一和第二键接收开口。钥匙位于套筒的内表面上。所述钥匙可与所述轴中的所述第一和第二钥匙接收开口相配合，由此所述套筒可相对于所述轴从第一位置转动到第二位置，以使所述钥匙与所述第一钥匙接收开口脱离接合，钥匙接收开口延长轴承寿命。

10. 发明授权

US5199510A Raise boring head and stem assembly method 失效
标题翻译：提高镗头和杆装配方式
公开(公告)号：US5199510A
公开(公告)日：1993-04-06
申请号：US704027
申请日：1991-05-22
申请人： John M. Stanley , Gregory L. Hern
发明人： John M. Stanley , Gregory L. Hern
IPC分类号： E21B7/28 , E21B17/10 , E21B19/18
CPC分类号： E21B19/18 , E21B17/10 , E21B7/28
摘要： An improved method for assembling a stem within a mating, close fitting hole of a raise boring head by attaching an overhead beam to the body of the raise boring bit, supporting the stem with its longitudinal axis aligned with that of the beam and that of the mating hole, and moving the stem along its axis to assemble the stem in the mating hole. A coating of wear resistant material on selected regions of the stem employs a softer material than that of the stem or the mating hole to minimize damage to the hole during assembly.
摘要翻译：一种改进的方法，用于通过将高架梁附接到升高钻头的主体上来将杆头组装在升高镗孔的配合紧密配合的孔内，其支撑杆的纵轴与梁的轴线对准配合孔，并沿其轴线移动阀杆，以将阀杆组装在配合孔中。在杆的选定区域上的耐磨材料涂层使用比杆或配合孔的材料更软的材料，以最小化在组装期间对孔的损伤。

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