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1. 发明申请

US20130175095A1 PRESSURE ACTIVATED FLOW SWITCH FOR A DOWNHOLE TOOL 有权
标题翻译：压力激活流量开关为一个卧室工具
公开(公告)号：US20130175095A1
公开(公告)日：2013-07-11
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 , E21B34/00
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在打开位置。

2. 发明授权

US07373988B2 Liner running system and method 有权
标题翻译：班轮运行系统和方法
公开(公告)号：US07373988B2
公开(公告)日：2008-05-20
申请号：US10932766
申请日：2004-09-02
申请人： John E. Campbell , Charles H. Dewey , Brian W. Cruickshank
发明人： John E. Campbell , Charles H. Dewey , Brian W. Cruickshank
IPC分类号： E21B23/01
CPC分类号： E21B43/10 , E21B23/02
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。通过衬管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。

3. 发明授权

US07178589B2 Thru tubing tool and method 有权
标题翻译：通过管道工具和方法
公开(公告)号：US07178589B2
公开(公告)日：2007-02-20
申请号：US10719199
申请日：2003-11-21
申请人： John E. Campbell , Charles H. Dewey , Chad D. Evans
发明人： John E. Campbell , Charles H. Dewey , Chad D. Evans
IPC分类号： E21B7/08 , E21B23/01
CPC分类号： E21B23/01
摘要： A downhole tool is disclosed that functions as an expandable anchoring tool, capable of passing through a restricted wellbore diameter while in a collapsed position and thereafter translating to an expanded position for grippingly engaging a larger wellbore diameter. An embodiment of the tool includes a body including a plurality of angled channels formed into a wall of the body and a plurality of moveable slips. The plurality of moveable slips translates along the plurality of angled channels between a collapsed position and an expanded position. The slips may include a plurality of extensions corresponding to and engaging the plurality of channels.
摘要翻译：公开了一种用作可膨胀锚固工具的井下工具，其能够在处于折叠位置时通过受限制的井筒直径，然后平移到膨胀位置以夹紧地接合更大的井筒直径。该工具的实施例包括主体，其包括形成在主体的壁中的多个成角度的通道和多个可移动的滑移。多个可移动滑动件在折叠位置和展开位置之间沿着多个成角度的通道平移。滑动件可以包括对应于并接合多个通道的多个延伸部。

4. 发明授权

US07597158B2 Drilling and hole enlargement device 有权
标题翻译：钻孔扩孔装置
公开(公告)号：US07597158B2
公开(公告)日：2009-10-06
申请号：US12140833
申请日：2008-06-17
申请人： John E. Campbell , Charles H. Dewey , Lance D. Underwood , Ronald G. Schmidt
发明人： John E. Campbell , Charles H. Dewey , Lance D. Underwood , Ronald G. Schmidt
IPC分类号： E21B10/32
CPC分类号： E21B10/322 , E21B10/325 , E21B21/10
摘要： An expandable drilling apparatus is deployed upon a distal end of a drillstring and includes a cutting head and a substantially tubular main body adjacent the cutting head providing a plurality of axial recesses configured to receive arm assemblies configured to translate between a retracted and an extended position. A flow switch actuates the arm assemblies when a drilling fluid pressure exceeds an activation value and the drilling apparatus includes a biasing member to reset the arm assemblies when the drilling fluid pressure falls below a reset value.
摘要翻译：可扩展钻孔设备部署在钻柱的远端上，并且包括切割头和与切割头相邻的基本上管状的主体，其提供多个轴向凹槽，其构造成接收构造成在缩回位置和伸出位置之间平移的臂组件。当钻井液压力超过激活值时，流量开关致动臂组件，并且当钻井液压力低于复位值时，钻井设备包括偏置构件以复位臂组件。

5. 发明授权

US07377328B2 Expandable anchor 有权
标题翻译：可扩展锚点
公开(公告)号：US07377328B2
公开(公告)日：2008-05-27
申请号：US11069282
申请日：2005-03-01
申请人： Charles H. Dewey , Brian W. Cruickshank , John E. Campbell
发明人： Charles H. Dewey , Brian W. Cruickshank , John E. Campbell
IPC分类号： E21B7/08
CPC分类号： E21B23/01
摘要： An expandable downhole anchoring tool positionable within a wellbore for use in cooperation with drilling equipment comprises a body including a plurality of angled channels formed into a wall thereof, and a plurality of moveable slips disposed in the same radial plane around the body, wherein the plurality of moveable slips are hydraulically translatable along the plurality of angled channels between a collapsed position and an expanded position. A method of setting an expandable anchor within a wellbore comprises running the anchor into the wellbore in a collapsed position, and expanding the anchor into gripping engagement with the wellbore, wherein the anchor is adapted to expand up to at least 1.5 times a collapsed diameter of the anchor.
摘要翻译：可与钻井设备配合使用的用于与钻井设备配合使用的可在井眼内定位的可扩展井下锚固工具包括：主体，其包括形成在其壁中的多个成角度的通道;以及多个可移动的滑动件，其布置在围绕所述主体的相同的径向平面中，可移动滑移件可在折叠位置和展开位置之间沿着多个成角度的通道液压地平移。将可膨胀锚固件设置在井筒内的方法包括将锚固件在折叠位置运行到井筒中，并且将锚固件膨胀成与井眼夹紧接合，其中锚固件适于膨胀至至少1.5倍的塌缩直径锚点。

6. 发明授权

US06648069B2 Well reference apparatus and method 失效
公开(公告)号：US06648069B2
公开(公告)日：2003-11-18
申请号：US10171215
申请日：2002-06-12
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： E21B4400
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 well reference apparatus and method of the present invention includes a reference member preferably permanently installed within the borehole at a preferred depth and orientation in one trip into the well. The reference member provides a permanent reference for the location of all operations, particularly in a multi-lateral well. The assembly of the present invention includes disposing the reference member on the end of a pipe string. An orienting tool such as an MWD collar is disposed in the pipe string above the reference member. This assembly is lowered into the borehole on the pipe string. Once the preferred depth is attained, the MWD is activated to determine the orientation of the reference member. If the reference member is not oriented in the preferred direction, the pipe string is rotated to align the reference member in the preferred direction. This process is repeated for further corrective action and to verify the proper orientation of the reference member. Upon achieving the proper orientation of the reference member, the reference member is set within the borehole and the pipe string is disconnected from the reference member and retrieved.

7. 发明授权

US06499538B2 Method and apparatus for forming an optimized window 有权
标题翻译：用于形成优化窗口的方法和装置
公开(公告)号：US06499538B2
公开(公告)日：2002-12-31
申请号：US09288401
申请日：1999-04-08
申请人： Charles H. Dewey , John E. Campbell
发明人： Charles H. Dewey , John E. Campbell
IPC分类号： E21B2906
CPC分类号： E21B7/061 , E21B29/06
摘要： Methods and apparatus are described for forming a window of optimum dimensions in casing wall. A window of maximum width is cut when the center line of the mill tool is located inside of the inner diameter of the casing where a maximum amount of casing is drilled away by the mill tool. A whipstock is described which deviates the mill tool outwardly so that the center line of the mill tool is in approximately this position. The whipstock then maintains the mill tool at this approximate location until a window of desired length is cut having a substantially maximum width.
摘要翻译：描述了用于在套管壁中形成最佳尺寸的窗口的方法和装置。当铣刀的中心线位于壳体内径的最大宽度的窗口内时，铣刀的最大量的壳体被钻出。描述了一种造斜器，其将铣刀工具向外偏离，使得磨机工具的中心线处于该位置。然后，造斜器将磨机工具保持在该大致位置，直到切割具有基本上最大宽度的期望长度的窗口。

8. 发明授权

US08820437B2 Cementing whipstock apparatus and methods 有权
标题翻译：水泥造斜机装置及方法
公开(公告)号：US08820437B2
公开(公告)日：2014-09-02
申请号：US13085586
申请日：2011-04-13
申请人： David L. Ervin , Charles H. Dewey , John E. Campbell , Shantanu N. Swadi , Philip M. Gregurek
发明人： David L. Ervin , Charles H. Dewey , John E. Campbell , Shantanu N. Swadi , Philip M. Gregurek
IPC分类号： E21B7/06 , E21B7/08 , E21B33/14
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。

9. 发明申请

US20120228032A1 EXPANDABLE WINDOW MILLING BIT AND METHODS OF MILLING A WINDOW IN CASING 有权
标题翻译：可扩展的窗口铣刀和铣削窗口的方法
公开(公告)号：US20120228032A1
公开(公告)日：2012-09-13
申请号：US13481470
申请日：2012-05-25
申请人： Charles H. Dewey , Praful C. Desai , John E. Campbell
发明人： Charles H. Dewey , Praful C. Desai , John E. Campbell
IPC分类号： E21B7/04
CPC分类号： E21B10/62 , E21B7/061
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。

10. 发明授权

US07448446B2 Thru tubing tool and method 有权
标题翻译：通过管道工具和方法
公开(公告)号：US07448446B2
公开(公告)日：2008-11-11
申请号：US11670888
申请日：2007-02-02
申请人： John E. Campbell , Charles H. Dewey , Chad D. Evans
发明人： John E. Campbell , Charles H. Dewey , Chad D. Evans
IPC分类号： E21B7/08 , E21B23/01
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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