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公开(公告)号：US06228741B1
公开(公告)日：2001-05-08
申请号：US09228583
申请日：1999-01-11
申请人： Shawn T. Walsh , John E. Campbell , James B. Friedmann , Thomas M. Parrill , Der'E Jan , Joshua J. Robbins , Byron T. Ahlburn , Sue Ellen Crank
发明人： Shawn T. Walsh , John E. Campbell , James B. Friedmann , Thomas M. Parrill , Der'E Jan , Joshua J. Robbins , Byron T. Ahlburn , Sue Ellen Crank
IPC分类号： H01L2176
CPC分类号： H01L21/02063 , H01L21/02164 , H01L21/02211 , H01L21/02274 , H01L21/02304 , H01L21/31051 , H01L21/31116 , H01L21/31612 , H01L21/3185 , H01L21/76224 , H01L21/76232
摘要： A method is given for removing excess oxide from active areas after shallow trench isolation, without the use of chemical-mechanical polishing. A nitride mask protects active areas during the etch of isolation trenches. The trenches are filled with oxide, using high density plasma deposition, which simultaneously etches, providing a sloping contour around the isolation trenches. A further layer of nitride is used to provide a cap over the trench which seals to the underlying layer of nitride. The cap layer of nitride receives a patterned etch to remove the cap only over the active areas. This allows a selective etch to remove the excess oxide, which can be followed by a selective etch to remove the nitride layers.
摘要翻译： 给出了在浅沟槽隔离后从活性区域去除过量氧化物的方法，而不使用化学机械抛光。 氮化物掩模在蚀刻隔离沟槽期间保护有源区。 沟槽用氧化物填充，使用高密度等离子体沉积，其同时蚀刻，在隔离沟槽周围提供倾斜的轮廓。 另外的氮化物层用于在沟槽上提供一个帽，该盖密封到下面的氮化物层。 氮化物的盖层接受图案化的蚀刻，以仅在有效区域上移除盖。 这允许选择性蚀刻去除多余的氧化物，其后可以进行选择性蚀刻去除氮化物层。
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2.发明授权公开(公告)号：US06686283B1
公开(公告)日：2004-02-03
申请号：US09498083
申请日：2000-02-04
申请人： Shawn T. Walsh , John E. Campbell , Somit Joshi , James B. Friedmann , Michael J. McGranaghan , Janice D. Makos , Arun Sivasothy , Troy A. Yocum , Jaideep Mavoori , Wayne A. Bather , Joe G. Tran , Ju-Ai Ruan , Michelle L. Hartsell , Gregory B. Shinn
发明人： Shawn T. Walsh , John E. Campbell , Somit Joshi , James B. Friedmann , Michael J. McGranaghan , Janice D. Makos , Arun Sivasothy , Troy A. Yocum , Jaideep Mavoori , Wayne A. Bather , Joe G. Tran , Ju-Ai Ruan , Michelle L. Hartsell , Gregory B. Shinn
IPC分类号： H01L2176
CPC分类号： H01L21/76229 , H01L21/31056
摘要： A method for forming planar isolation structures for integrated circuits. A etch barrier is formed over the isolation fill material and an etch back is performed to remove material above unetched portions of the substrate. The exposed fill material is etched and planarized to form a planar isolation structure.
摘要翻译： 一种用于形成用于集成电路的平面隔离结构的方法。 在隔离填充材料上形成蚀刻阻挡层，并且执行回蚀以去除衬底的未蚀刻部分上方的材料。 将暴露的填充材料蚀刻并平坦化以形成平面隔离结构。
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公开(公告)号：US09228406B2
公开(公告)日：2016-01-05
申请号：US13563378
申请日：2012-07-31
摘要： A cutting apparatus and method to facilitate milling of a casing window by improving the interaction between the mill and the casing. The cutting apparatus comprises a whipstock having a plurality of ramp sections which provide a ramp profile arranged and designed to cooperate with the cutting structure of a mill to achieve a desired loading on the mill cutting elements during milling of the casing window. The plurality of ramp sections, having specific lengths and oriented at specific angles, adjust the loading on the mill as the mill cuts through the casing during formation of the casing window. The improved whipstock maintains a more balanced loading across the cutting elements during milling operations. Additional mill cutting structures may also be selected and evaluated to further balance the cutting load during window milling.
摘要翻译： 一种切削装置和方法，用于通过改善轧机和套管之间的相互作用来促进套管窗的铣削。 切割装置包括具有多个斜面部分的造斜器，该斜面部分提供了斜面轮廓，该坡道轮廓布置和设计成与铣刀的切割结构配合，以在铣削窗口的铣削期间实现对切割元件的期望载荷。 具有特定长度并且以特定角度定向的多个斜坡部分在机壳窗口形成期间随着铣刀穿过壳体而调节磨机上的负载。 改进的造斜器在铣削操作期间在切割元件上保持更平衡的负载。 还可以选择和评估另外的铣削切割结构，以进一步平衡窗铣过程中的切削负载。
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公开(公告)号：US08967300B2
公开(公告)日：2015-03-03
申请号：US13345400
申请日：2012-01-06
申请人： Charles H Dewey , John E. Campbell , Daniel LeVon
发明人： Charles H Dewey , John E. Campbell , Daniel LeVon
IPC分类号： E21B10/32
CPC分类号： E21B10/322 , E21B21/103 , E21B34/10 , E21B2034/007
摘要： A downhole tool includes a pressure activated flow switch for selectively actuating and deactuating a device, such as a reaming block. The flow switch is deployed external to the flow bore and includes a flow piston configured to reciprocate between axially opposed open and closed positions such that the device is actuated when the flow piston is in the open position and deactuated when the flow piston is in the closed position. The flow piston is configured to translate from the closed position to the open position when a differential pressure exceeds a predetermined threshold. The flow piston may be further configured to remain in the open position at differential pressures less than the threshold.
摘要翻译： 井下工具包括用于选择性地致动和停用诸如铰孔块的装置的压力启动流量开关。 流动开关被布置在流动孔的外部，并且包括流动活塞，流动活塞构造成在轴向相对的打开和关闭位置之间往复运动，使得当流动活塞处于打开位置时该装置被致动，并且当流动活塞处于关闭状态时停止运动 位置。 流动活塞构造成当压差超过预定阈值时从关闭位置平移到打开位置。 流动活塞可进一步构造成在小于阈值的差压下保持打开位置。
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公开(公告)号：US08820437B2
公开(公告)日：2014-09-02
申请号：US13085586
申请日：2011-04-13
CPC分类号： E21B7/061
摘要： A technique facilitates sidetracking by eliminating one or more trips downhole. The technique comprises delivering a sidetracking system downhole into a wellbore, and utilizing a component of the sidetracking system to grip a wall of the wellbore. The sidetracking system may comprise a whipstock assembly and a running/stinger assembly in which the stinger assembly is designed for disconnection from the whipstock assembly after delivery downhole. After disconnecting the stinger assembly, the sidetracking system enables delivery of cement slurry down through the stinger assembly to form a cement plug at a desired location.
摘要翻译： 一种技术通过消除井下的一个或多个行程来简化侧钻。 该技术包括将井下侧钻系统输送到井眼中，并且利用侧钻系统的部件来夹紧井眼的壁。 侧钻系统可以包括造斜器组件和运行/托管架组件，其中托管架组件被设计用于在输送到井下之后与造斜器组件断开连接。 在断开托管架组件之后，侧钻系统能够将水泥泥浆向下输送通过托管架组件，以在期望的位置形成水泥塞。
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公开(公告)号：US20130199784A1
公开(公告)日：2013-08-08
申请号：US13563378
申请日：2012-07-31
IPC分类号： E21B29/06
摘要： A cutting apparatus and method to facilitate milling of a casing window by improving the interaction between the mill and the casing. The cutting apparatus comprises a whipstock having a plurality of ramp sections which provide a ramp profile arranged and designed to cooperate with the cutting structure of a mill to achieve a desired loading on the mill cutting elements during milling of the casing window. The plurality of ramp sections, having specific lengths and oriented at specific angles, adjust the loading on the mill as the mill cuts through the casing during formation of the casing window. The improved whipstock maintains a more balanced loading across the cutting elements during milling operations. Additional mill cutting structures, including one or more disclosed herein, may also be selected and evaluated to further balance the cutting load during window milling.
摘要翻译： 一种切削装置和方法，用于通过改善轧机和套管之间的相互作用来促进套管窗的铣削。 切割装置包括具有多个斜面部分的造斜器，该斜面部分提供了斜面轮廓，该坡道轮廓布置和设计成与铣刀的切割结构配合，以在铣削窗口的铣削期间实现对切割元件的期望载荷。 具有特定长度并且以特定角度定向的多个斜坡部分在机壳窗口形成期间随着铣刀穿过壳体而调节磨机上的负载。 改进的造斜器在铣削操作期间在切割元件上保持更平衡的负载。 还可以选择和评估包括本文公开的一种或多种的另外的铣削切割结构，以进一步平衡窗铣削期间的切削负载。
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公开(公告)号：US20120228032A1
公开(公告)日：2012-09-13
申请号：US13481470
申请日：2012-05-25
IPC分类号： E21B7/04
摘要： A method of milling a window through a casing in a primary well bore and drilling an enlarged sidetracked well bore comprises running into the primary well bore a drilling assembly comprising at least one cutting apparatus adapted to drill an enlarged borehole, milling a window through the casing, and drilling the enlarged sidetracked well bore, wherein the milling and drilling steps are performed in one trip into the primary well bore.A drilling assembly comprises at least one cutting apparatus operable to drill an enlarged borehole, wherein the drilling assembly is operable to mill a window through a casing in a primary well bore and drill an enlarged sidetracked well bore through the window in one trip into the primary well bore.
摘要翻译： 通过在主井眼中的壳体铣削窗口并钻出扩大的侧向钻井孔的方法包括进入主井孔中的钻井组件，该钻井组件包括适于钻扩大钻孔的至少一个切割装置，通过壳体铣削窗口 ，并钻出扩大的侧钻孔，其中铣削和钻削步骤在一次进入主井眼中进行。 钻井组件包括至少一个可操作以钻取扩大钻孔的切割装置，其中所述钻井组件可操作以通过主井眼中的壳体研磨窗口，并且将一个扩大的侧向钻井孔穿过所述窗口，一次进入所述主井眼 井眼。
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公开(公告)号：US07448446B2
公开(公告)日：2008-11-11
申请号：US11670888
申请日：2007-02-02
CPC分类号： E21B23/01
摘要： A downhole assembly comprises a whipstock and an expandable anchoring tool connected to the whipstock, wherein the tool comprises a body including a plurality of angled channels formed into a wall thereof and a plurality of moveable slips, wherein the slips translate along the angled channels between a collapsed position and an expanded position. A method for performing a thru tubing operation in a well bore comprises running a downhole assembly comprising a whipstock and an expandable anchoring tool in a collapsed position through a first diameter section of the well bore, orienting the whipstock, and translating a plurality of pairs of slips of the expandable anchoring tool to an expanded position into gripping engagement with a casing lining a second diameter section of the well bore that is larger than the first diameter section, wherein the pairs of slips are axially spaced apart along the expandable anchoring tool.
摘要翻译： 井下组件包括造斜器和连接到造斜器的可膨胀锚固工具，其中所述工具包括主体，所述主体包括形成为其壁的多个成角度的通道和多个可移动滑动件，其中所述滑动件沿着所述倾斜通道在一 折叠位置和展开位置。 一种用于在井眼中执行通过管道操作的方法，包括通过井眼的第一直径部分运行包括造斜器和可膨胀锚固工具的井下组件，所述可伸缩锚固工具通过所述井筒的第一直径部分，定向所述造斜器，以及平移多对 可膨胀锚固工具的滑动件到膨胀位置，以与衬套衬套井眼的第二直径部分的壳体夹紧接合，所述第二直径部分大于第一直径部分，其中成对的滑动件沿着可扩张锚固工具沿轴向间隔开。
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公开(公告)号：US06899183B2
公开(公告)日：2005-05-31
申请号：US10143287
申请日：2002-05-10
申请人： Charles H. Dewey , John E. Campbell , Wei Xu
发明人： Charles H. Dewey , John E. Campbell , Wei Xu
IPC分类号： E21B23/01
CPC分类号： E21B23/01
摘要： A method and apparatus to affix a tool downhole in a cased wellbore, one embodiment comprising a tubular body with a slot along its length. A portion of the slot is V-shaped to accommodate a wedge with a corresponding V-shape. The outside of the tubular body has integral teeth. To set the apparatus, the wedge is driven into the V-shaped slot. This movement widens the slot and expands the diameter of the tubular body until it intersects with the casing. The teeth on the outside of the body bite into the casing wall to affix the tool to the casing.
摘要翻译： 一种在套管井眼中固定工具井下的方法和装置，一个实施例包括具有沿其长度的槽的管状体。 槽的一部分为V形以容纳具有相应V形的楔形物。 管状体的外部具有整体牙齿。 为了设置装置，楔形件被驱动到V形槽中。 该运动加宽了狭槽并扩大了管状体的直径，直到其与壳体相交。 身体外侧的牙齿咬入套管壁，将工具固定在外壳上。
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公开(公告)号：US06543536B2
公开(公告)日：2003-04-08
申请号：US09860870
申请日：2001-05-18
申请人： Charles H. Dewey , John E. Campbell , Wei Xu
发明人： Charles H. Dewey , John E. Campbell , Wei Xu
IPC分类号： E21B4700
CPC分类号： E21B7/061 , E21B23/01 , E21B23/04 , E21B23/06 , E21B29/06 , E21B33/12 , E21B41/0035 , E21B47/024 , E21B47/04 , E21B47/09
摘要： The reference member provides a permanent reference for the depth and orientation of all well operations and includes a body with an engaging surface for an attaching engagement to the interior surface of an existing casing in a borehole and an orienting surface for orienting well tools within the cased borehole. No sealing engagement is required with the casing. The engaging surface on the body has a first non-engaged position where the engaging surface does not engage the casing and an engaged position where the engaging surface does engage the casing which causes adequate engagement between the body and the casing to permanently dispose the well reference member within the casing. The well reference member further includes an actuation member for actuating the engaging surface from the non-engaged position to the engaged position. The actuation member may be an expansion member which expands the body having an engaging surface into engagement with the casing or which expands engaging surfaces, reciprocably mounted on the body, into engagement with the casing.
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