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公开(公告)号：US20130146361A1
公开(公告)日：2013-06-13
申请号：US13324265
申请日：2011-12-13
CPC分类号： E21B10/32 , E21B7/28 , E21B10/322 , E21B17/1078
摘要： A secondary cutting structure for use in a drilling assembly includes a tubular body, and a block, extendable from the tubular body, the block including a first arrangement of cutting elements disposed on a first blade, a first stabilization section disposed proximate the first arrangement of cutting elements, a second arrangement of cutting elements disposed on the first blade, and a second stabilization section disposed proximate the second arrangement of cutting elements. A method of drilling includes disposing a drilling assembly in a wellbore, the drilling assembly including a secondary cutting structure having a tubular body and a block, extendable from the body, the block including at least three blades, actuating the secondary cutting structure, wherein the actuating includes extending the block from the tubular body, and drilling formation with the extended block
摘要翻译： 用于钻井组件的二次切割结构包括管状主体和可从管状体延伸的块，该块包括设置在第一叶片上的切割元件的第一布置，第一稳定部分， 切割元件，设置在第一刀片上的切割元件的第二布置，以及靠近第二切割元件布置设置的第二稳定部。 一种钻井方法包括将钻井组件设置在井眼中，钻井组件包括具有管状主体和块的辅助切割结构，该主体可从本体延伸，该块包括至少三个叶片，致动第二切割结构，其中， 致动包括从管状体延伸块体，以及用延伸块体进行钻井成形
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公开(公告)号：US20120298423A1
公开(公告)日：2012-11-29
申请号：US13116777
申请日：2011-05-26
CPC分类号： E21B10/322 , E21B10/60 , E21B17/1078
摘要： Various embodiments of an expandable downhole tool for use in drilling of a wellbore are disclosed. The expandable tools disclosed herein may be used as an underreamer to enlarge a borehole, or may be used to stabilize a drilling system in a previously underreamed borehole or in a borehole that is being underreamed while drilling progresses. The various embodiments of the expandable tools disclosed herein have a higher hydraulic capacity than prior art underreamers. An increase in hydraulic energy delivered to the cutting structures may advantageously improve the rate of removal of cuttings from the cutting structures (improved cuttings evacuation), may decrease cutter element wear, and may prevent damage or premature failure. Improved cuttings evacuation may also provide for improved cutting action and increased penetration rates.
摘要翻译： 公开了用于钻井中的可扩展井下工具的各种实施例。 本文公开的可膨胀工具可以用作扩孔器的扩孔器，或者可以用于稳定钻井系统在预先钻进的钻孔中或在钻孔进行时正在被加热的钻孔中。 本文公开的可膨胀工具的各种实施例具有比现有技术的扩孔器更高的液压能力。 输送到切割结构的液压能量的增加可以有利地提高切割结构的切割速度（改进的切屑排出），可以减少切割器元件磨损，并且可以防止损坏或过早失效。 改进的切屑撤离也可以提供改进的切割作用和增加的渗透速率。
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公开(公告)号：US20060207797A1
公开(公告)日：2006-09-21
申请号：US11436790
申请日：2006-05-18
申请人： Charles Dewey , Wei Xu
发明人： Charles Dewey , Wei Xu
IPC分类号： E21B10/32
CPC分类号： E21B7/067 , E21B10/322 , E21B17/1014
摘要： An expandable downhole tool comprises a tubular body having an axial flowbore extending therethrough, at least one moveable arm, and a selectively actuatable sleeve that prevents or allows the at least one moveable arm to translate between a collapsed position and an expanded position. A method of expanding a downhole tool comprises disposing the downhole tool comprising at least one moveable arm within the wellbore, biasing the at least one moveable arm to a collapsed position corresponding to an initial diameter of the downhole tool, flowing a fluid through an axial flowbore extending through the downhole tool while preventing the fluid from communicating with a different flowpath of the downhole tool, allowing the fluid to communicate with the different flowpath by introducing an actuator into the wellbore, and causing the at least one moveable arm to translate to an expanded position corresponding to an expanded diameter of the downhole tool.
摘要翻译： 可扩展井下工具包括具有延伸穿过其中的轴向流孔的管状体，至少一个可移动臂和可选择性致动的套筒，其防止或允许至少一个可移动臂在折叠位置和膨胀位置之间平移。 膨胀井下工具的方法包括将井下工具设置成在井孔内包括至少一个可移动的臂，将至少一个可动臂偏压到对应于井下工具的初始直径的折叠位置，使流体流过轴流孔 延伸穿过井下工具，同时防止流体与井下工具的不同流路连通，允许流体通过将致动器引入井筒中而与不同的流动路径连通，并且使得至少一个可移动臂平移到膨胀的 对应于井下工具的扩大直径的位置。
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公开(公告)号：US20050051342A1
公开(公告)日：2005-03-10
申请号：US10932766
申请日：2004-09-02
申请人： John Campbell , Charles Dewey , Brian Cruickshank
发明人： John Campbell , Charles Dewey , Brian Cruickshank
摘要： A liner running system for placing a liner in a well bore comprises a latch sleeve connected to the liner and a running tool releasably attached to the latch sleeve. The latch sleeve has a wall thickness substantially the same as the wall thickness of the liner, and the running tool has an outer diameter less than or equal to the inner diameter of the liner. The latch sleeve may be connected into the liner at any location along its length. The running tool is releasable from the latch sleeve via hydraulic actuation or mechanical actuation. Optionally, a swivel may be connected to the liner. The swivel has a wall thickness substantially the same as the wall thickness of the liner. The method for lowering the liner into the well bore via the liner running system comprises rotating the liner, pushing the liner, pulling the liner, or a combination thereof.
摘要翻译： 用于将衬套放置在井眼中的衬管运行系统包括连接到衬套的闩锁套筒和可释放地附接到闩锁套筒的运行工具。 闩锁套筒具有与衬套的壁厚基本相同的壁厚，并且运行工具的外径小于或等于衬套的内径。 闩锁套筒可以沿其长度的任何位置连接到衬垫中。 运行工具可通过液压致动或机械致动从闩锁套筒释放。 可选地，旋转件可以连接到衬套。 旋转件具有与衬套的壁厚基本相同的壁厚。 通过衬套运行系统将衬套降低到井眼中的方法包括旋转衬套，推动衬套，拉动衬套或其组合。
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公开(公告)号：US3958739A
公开(公告)日：1976-05-25
申请号：US587973
申请日：1975-06-18
CPC分类号： B23K15/04 , Y10T29/53974
摘要： A workpiece holder assembly for aligning a turbine with a turbine shaft without the requirement of an aligning pin received by the workpieces. The workpiece holder assembly receives the turbine shaft and the turbine. Upon depression of the top of the assembly, as by moving the assembly upward so as to engage an abutment, the interface between an end of the turbine shaft and one face of the turbine is exposed. The assembly is rotated over a full circle while the interface receives a welding beam of electrons. The assembly and abutment may be employed with existing electron beam welding apparatus.
摘要翻译： 一种用于使涡轮机与涡轮机轴对准而不需要由工件接收的对准销的工件保持器组件。 工件保持器组件接收涡轮轴和涡轮机。 当按压组件的顶部时，通过将组件向上移动以接合抵接件，涡轮轴的端部和涡轮的一个面之间的界面被暴露。 组件旋转一整圈，同时接口接收焊接电子束。 组装和邻接可以与现有的电子束焊接装置一起使用。
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6.发明授权公开(公告)号：US08387725B2
公开(公告)日：2013-03-05
申请号：US12102324
申请日：2008-04-14
IPC分类号： E21B10/36
摘要： A hammer bit for drilling a borehole in earthen formations comprises a bit body having a bit axis and a bit face. The bit face includes an inner region extending from the bit axis to about 50% of the bit radius and an outer region extending from the inner region to the outermost radius. In addition, the bit comprises a plurality of gage cutter elements mounted to the bit face in a circumferential gage row in the outer region. Further, the bit comprises a plurality of adjacent to gage cutter elements mounted to the bit face in a circumferential adjacent to gage row in the outer region. The cutting profile of at least one cutter element in each row in the outer region radially overlaps with the cutting profile of at least one other cutter element in a different row in rotated profile view.
摘要翻译： 用于在土层中钻孔的锤钻头包括具有钻头轴线和钻头面的钻头体。 钻头面包括从钻头轴线延伸到钻头半径的约50％的内部区域和从内部区域延伸到最外侧半径的外部区域。 此外，该钻头包括安装在外部区域中的周向规格排中的钻头面的多个计量刀具元件。 此外，该钻头包括多个相邻的量规切割器元件，该多个相邻的切割器元件安装在邻近外部区域中的规格行的圆周中的钻头面上。 在外部区域中的每排中的至少一个切割器元件的切割轮廓与旋转轮廓图中的不同行中的至少一个其它切割器元件的切割轮廓径向重叠。
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公开(公告)号：US07950475B2
公开(公告)日：2011-05-31
申请号：US12127396
申请日：2008-05-27
摘要： A percussion drilling assembly for boring into the earth is disclosed. The percussion drilling assembly includes a top sub, a casing coupled to the top sub, and a feed tube assembly disposed within the top sub and the casing. The feed tube assembly includes a non-rigid coupling having a throughbore and a tubular body disposed therein. The tubular body is translatable in the radial position and/or rotatable relative to a longitudinal centerline extending through the non-rigid coupling.
摘要翻译： 公开了一种用于钻入地球的冲击钻井组件。 冲击钻井组件包括顶部辅助件，联接到顶部辅助件的外壳和设置在顶部子套件和外壳内的进给管组件。 进料管组件包括非刚性联接器，其具有通孔和设置在其中的管状体。 管状体可在径向位置平移和/或可相对于延伸穿过非刚性联接件的纵向中心线旋转。
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公开(公告)号：US20090294180A1
公开(公告)日：2009-12-03
申请号：US12127396
申请日：2008-05-27
IPC分类号： E21B1/00
摘要： A percussion drilling assembly for boring into the earth is disclosed. The percussion drilling assembly includes a top sub, a casing coupled to the top sub, and a feed tube assembly disposed within the top sub and the casing. The feed tube assembly includes a non-rigid coupling having a throughbore and a tubular body disposed therein. The tubular body is translatable in the radial position and/or rotatable relative to a longitudinal centerline extending through the non-rigid coupling.
摘要翻译： 公开了一种用于钻入地球的冲击钻井组件。 冲击钻井组件包括顶部辅助件，联接到顶部辅助件的外壳和设置在顶部子套件和外壳内的进给管组件。 进料管组件包括非刚性联接器，其具有通孔和设置在其中的管状体。 管状体可在径向位置平移和/或可相对于延伸穿过非刚性联接件的纵向中心线旋转。
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公开(公告)号：US20070187085A1
公开(公告)日：2007-08-16
申请号：US11691645
申请日：2007-03-27
申请人： Charles Dewey , Praful Desai
发明人： Charles Dewey , Praful Desai
IPC分类号： E21B29/06
摘要： The side tracking system includes a window mill having a full diameter cutting surface and a reduced diameter tapered cutting surface and a whipstock having a ramp engaging the reduced diameter cutting surface. The cutting tool has a body with diamond cutters initiating cutting of a steel casing, milling a window through the steel casing and drilling a secondary borehole. The materials of the whipstock have a first cutability and the materials of the casing have a second cutability. The reduced diameter cutting surface contacts the whipstock ramp at a first contact area and the full diameter cutting surface contacts the wall of the casing at a second contact area. As weight is applied to the mill, there is a first contact stress at the first contact area and a second contact stress at the second contact area. A cutability ratio is the first cutability divided by the second cutability and a contact stress ratio is the first contact stress divided by the second contact stress. The mill cuts the casing rather than the whipstock by maintaining the product of the cutability ratio and the contact stress ratio less than one.
摘要翻译： 侧跟踪系统包括具有全直径切割表面和减小直径的锥形切割表面的窗口磨机和具有接合减小直径的切割表面的斜面的造斜器。 切割工具具有金刚石切割器的主体，起始切割钢制外壳，通过钢制外壳铣削窗户并钻出辅助钻孔。 造斜器的材料具有第一可切割性，并且壳体的材料具有第二可切割性。 直径减小的切割表面在第一接触区域处接触造斜斜坡，并且全直径切割表面在第二接触区域处接触壳体的壁。 当重量施加到轧机时，在第一接触区域处存在第一接触应力和在第二接触区域处的第二接触应力。 可切割性比率是第一可切割性除以第二可切割性，接触应力比是第一接触应力除以第二接触应力。 轧机通过将可切割性比和接触应力比的乘积维持在1以下，切割套管而不是造斜器。
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公开(公告)号：US20070163809A1
公开(公告)日：2007-07-19
申请号：US11669593
申请日：2007-01-31
申请人： Alexander Mackay , George Espiritu , Charles Dewey
发明人： Alexander Mackay , George Espiritu , Charles Dewey
IPC分类号： E21B10/32
CPC分类号： E21B10/322 , E21B10/325 , E21B21/10
摘要： An expandable drilling apparatus includes a main body comprising a central bore and at least one axial recess configured to receive an arm assembly operable between a retracted position and an extended position, a biasing member to urge the arm assembly into the retracted position, a drive position configured to thrust the arm assembly into the extended position when in communication with drilling fluids in the central bore, a selector piston translatable between an open position and a closed position, wherein the selector piston is thrust into the open position when a pressure of the drilling fluids exceeds an activation value, wherein the drilling fluids are in communication with the drive piston when the selector piston is in the open position, and a selector spring configured to thrust the selector piston into the closed position when the pressure of the drilling fluids falls below a reset value.
摘要翻译： 一种可膨胀钻孔设备包括：主体，其包括中心孔和至少一个轴向凹槽，所述至少一个轴向凹槽构造成容纳在缩回位置和延伸位置之间可操作的臂组件;偏压构件，用于将臂组件推入缩回位置;驱动位置 构造成当与中心孔中的钻井流体连通时将臂组件推入伸出位置，可在打开位置和关闭位置之间平移的选择活塞，其中当钻孔压力时，选择活塞被推入打开位置 液体超过激活值，其中当选择活塞处于打开位置时，钻井液与驱动活塞连通;以及选择器弹簧，其构造成当钻井液的压力下降时推动选择活塞进入关闭位置 一个复位值。
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