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1. 发明授权

US08499834B2 Milling tool for establishing openings in wellbore obstructions 有权
标题翻译：用于在井眼障碍物中建立开口的铣削工具
公开(公告)号：US08499834B2
公开(公告)日：2013-08-06
申请号：US12896266
申请日：2010-10-01
申请人： Christopher W. Guidry , Guruswami Navin , Lambertus C. F. Joppe , Andrew D. Ponder , Calvin Stowe
发明人： Christopher W. Guidry , Guruswami Navin , Lambertus C. F. Joppe , Andrew D. Ponder , Calvin Stowe
IPC分类号： E21B29/06 , E21B17/10 , E21B10/26
CPC分类号： E21B29/002
摘要： A milling tool which includes a nose cutting portion, a cutting section having a plurality of hardened cutters and a shaft portion. A wear pad is disposed on the cutting section and shaft portion. Upon the shaft portion, the wear pad extends radially outwardly to an engagement diameter that exceeds the maximum cutting diameter of the cutters.
摘要翻译：一种铣刀，其包括鼻部切割部分，具有多个硬化刀具的切割部分和轴部分。磨损垫设置在切割部分和轴部分上。在轴部分上，磨损垫径向向外延伸到超过切割器的最大切割直径的接合直径。

2. 发明申请

US20110240367A1 Milling Tool for Establishing Openings in Wellbore Obstructions 有权
标题翻译：用于在井眼障碍物中建立开口的铣削工具
公开(公告)号：US20110240367A1
公开(公告)日：2011-10-06
申请号：US12896266
申请日：2010-10-01
申请人： Christopher W. Guidry , Guruswami Navin , Lambertus C.F. Joppe , Andrew D. Ponder , Calvin Stowe
发明人： Christopher W. Guidry , Guruswami Navin , Lambertus C.F. Joppe , Andrew D. Ponder , Calvin Stowe
IPC分类号： E21B7/00 , E21B10/28
CPC分类号： E21B29/002
摘要： A milling tool which includes a nose cutting portion, a cutting section having a plurality of hardened cutters and a shaft portion. A wear pad is disposed on the cutting section and shaft portion. Upon the shaft portion, the wear pad extends radially outwardly to an engagement diameter that exceeds the maximum cutting diameter of the cutters.
摘要翻译：一种铣刀，其包括鼻部切割部分，具有多个硬化刀具的切割部分和轴部分。磨损垫设置在切割部分和轴部分上。在轴部分上，磨损垫径向向外延伸到超过切割器的最大切割直径的接合直径。

3. 发明申请

US20060249310A1 Whipstock kick off radius 审中-公开
标题翻译：惠普斯克开球半径
公开(公告)号：US20060249310A1
公开(公告)日：2006-11-09
申请号：US11123431
申请日：2005-05-06
申请人： Calvin Stowe , Gregory Hern
发明人： Calvin Stowe , Gregory Hern
IPC分类号： E21B7/08
CPC分类号： E21B7/061
摘要： An improved whipstock design features a ramp having a lower terminus at the location of the expected window bottom. The lower end of the whipstock ramp transitions gradually from a preferably flat guide surface to a more drastic exit orientation that is preferably obtained by going to an arcuate exit of a rather large radius to present a smooth transition from the flat guide surface to an orientation that allows kick-out to occur by the end of the ramp. This in turn allows the ramp end to closely approximate the window bottom to reduce the risk of creation of a pocket near the window bottom that could trap or damage equipment delivered in subsequent runs.
摘要翻译：改进的造斜器设计具有在预期窗口底部的位置具有较低端部的斜坡。造斜板斜坡的下端从优选的平坦的导向表面逐渐变化到更强烈的出口方向，优选地通过转到相当大的半径的弧形出口获得，以呈现从平坦的引导表面到平滑的过渡，允许在斜坡结束时发生跳出。这又允许斜坡端部紧密靠近窗口底部，以减少在窗口底部附近创建可能陷入或损坏后续运行中传送的设备的口袋的风险。

4. 发明申请

US20060196676A1 Sliding sleeve devices and methods using O-ring seals as shear members 失效
标题翻译：滑动套筒装置和使用O形圈密封件作为剪切构件的方法
公开(公告)号：US20060196676A1
公开(公告)日：2006-09-07
申请号：US11073435
申请日：2005-03-07
申请人： Carl Stoesz , Calvin Stowe
发明人： Carl Stoesz , Calvin Stowe
IPC分类号： E21B17/06
CPC分类号： E21B17/06 , E21B34/14
摘要： Devices and methods for releasably securing components of a device having a sliding sleeve arrangement to prevent premature actuation due to vibration. In a currently preferred embodiment, the invention utilizes standard elastomeric O-rings as shear members. The O-ring shear members reside within spaces formed between two slidable sleeve members. The O-rings are sheared cross-sectionally to allow the sleeve members to move axially with respect to one another. An exemplary coiled tubing shear release joint is described that incorporates a shear disconnect assembly which uses elastomeric O-rings as shear members. Multiple O-ring seals can be used as shear members to increase the shear value of the device. The use of O-rings as shear members helps prevent premature sliding of sleeve components in response to high vibration. Because the O-rings are resilient, they absorb vibration and do not shear during vibration, the connection between the two sleeve components will not be released prematurely.
摘要翻译：用于可释放地固定具有滑动套筒装置的装置的部件以防止由于振动引起的过早致动的装置和方法。在当前优选的实施方案中，本发明使用标准弹性体O形环作为剪切构件。 O形环剪切构件位于两个可滑动套筒构件之间形成的空间内。 O形环横截面剪切以允许套筒构件相对于彼此轴向移动。描述了一种示例性的盘绕管剪切释放接头，其包括使用弹性体O形环作为剪切构件的剪切断开组件。可以使用多个O形密封圈作为剪切构件来增加装置的剪切值。使用O形圈作为剪切构件有助于防止套筒组件随着高振动的过早滑动。由于O形圈是弹性的，它们吸收振动并且在振动期间不剪切，两个套筒部件之间的连接将不会过早地释放。

5. 发明授权

US07363992B2 Cutters for downhole cutting devices 有权
标题翻译：切割机用于井下切割装置
公开(公告)号：US07363992B2
公开(公告)日：2008-04-29
申请号：US11483154
申请日：2006-07-07
申请人： Calvin Stowe , James McNicol
发明人： Calvin Stowe , James McNicol
IPC分类号： E21B10/46
CPC分类号： E21B10/5673 , E21B29/06
摘要： Improved cutter design as well as an improved design for downhole cutters, such as mandrel cutters and rotary cutter mills. A cutter is described with a rectangular, rounded “lozenge” shape. The cutter presents a cross-sectional cutting area having a pair of curvilinear end sections and an elongated central section. Preferably, the overall length of the cutter is 1.5 times the width. The cutter may also include a raised cutter edge for chip breaking during cutting.
摘要翻译：改进的刀具设计以及井下刀具的改进设计，如心轴切割机和旋转切割机。切割器用矩形，圆形的“菱形”形状描述。切割器具有横截面切割区域，其具有一对曲线端部段和细长中心部分。优选地，切割器的总长度是宽度的1.5倍。切割器还可以包括用于在切割期间断屑的升高的切割刃。

6. 发明申请

US20080006446A1 Cutters for downhole cutting devices 有权
公开(公告)号：US20080006446A1
公开(公告)日：2008-01-10
申请号：US11483154
申请日：2006-07-07
申请人： Calvin Stowe , James McNicol
发明人： Calvin Stowe , James McNicol
IPC分类号： E21B10/36
CPC分类号： E21B10/5673 , E21B29/06
摘要： Improved cutter design as well as an improved design for downhole cutters, such as mandrel cutters and rotary cutter mills. A cutter is described with a rectangular, rounded “lozenge” shape. The cutter presents a cross-sectional cutting area having a pair of curvilinear end sections and an elongated central section. Preferably, the overall length of the cutter is 1.5 times the width. The cutter may also include a raised cutter edge for chip breaking during cutting.

7. 发明申请

US20050109546A1 Flat and bevel chipbreaker insert 审中-公开
标题翻译：平面和斜角破碎片插入
公开(公告)号：US20050109546A1
公开(公告)日：2005-05-26
申请号：US10954106
申请日：2004-09-28
申请人： Calvin Stowe , Daniel Hart , Francine Bradford
发明人： Calvin Stowe , Daniel Hart , Francine Bradford
IPC分类号： E21B10/56 , E21B10/567 , E21B10/36
CPC分类号： E21B10/5673
摘要： A cutting insert for use on a metal cutting tool downhole in an oil or gas well, with at least one land on a leading edge of the insert, and at least one bevel surface angled relative to the axis of the insert and rising above the adjacent land in the direction of travel of the insert. Multiple bevels and lands can be used on each insert, and multiple inserts can be used on each tool.
摘要翻译：一种在油井或气井井下的金属切削工具上使用的切削刀片，其中在刀片前缘上具有至少一个焊盘，以及至少一个相对于刀片轴线成角度并相对于相邻刀片上升的斜面沿着插入物的行进方向着陆。每个刀片可以使用多个斜面和平台，每个刀具可以使用多个刀片。

8. 发明申请

US20050039905A1 Window mill and drill bit 有权
标题翻译：窗磨机和钻头
公开(公告)号：US20050039905A1
公开(公告)日：2005-02-24
申请号：US10916342
申请日：2004-08-10
申请人： Daniel Hart , Calvin Stowe , Trung Huynh , Roy Swanson , Rustom Mody , Jack Oldham , Jeffrey Lund , Lawrence Sinor , Robert Laing
发明人： Daniel Hart , Calvin Stowe , Trung Huynh , Roy Swanson , Rustom Mody , Jack Oldham , Jeffrey Lund , Lawrence Sinor , Robert Laing
IPC分类号： E21B10/54 , E21B10/55 , E21B29/06 , E21B29/10
CPC分类号： E21B10/55 , E21B29/06
摘要： A method and apparatus for running a whipstock into a well bore attached to a combination mill and drill bit, releasing the mill/bit from the whipstock, milling a window in the casing, and drilling a lateral well bore, all in one trip. The mill/bit is provided with a primary cutting structure better suited for milling through the casing, and a secondary cutting structure, better suited for drilling through the earth formation. The secondary cutting structure is initially smaller in diameter than the primary cutting structure. The whipstock can be attached to the mill/bit with a shear bolt supported by a boss on the whipstock, with the boss designed to arrest axial motion of the mill/bit after shearing of the bolt.
摘要翻译：一种用于将造斜器运行到连接到组合磨机和钻头的井眼中的方法和装置，将来自造斜器的磨机/钻头释放，在壳体中铣削窗口，并且在一个行程中钻一个侧井。铣床/钻头设置有更适合于通过壳体铣削的主切割结构，以及更适合于穿过地层钻孔的次切割结构。次级切割结构的直径初始小于主切割结构。造斜器可以用由造斜器上的凸台支撑的剪切螺栓连接到铣刀/钻头，凸台被设计成在剪切螺栓之后阻止铣刀/钻头的轴向运动。

9. 发明授权

US07370702B2 Single mill casing window cutting tool and method 有权
标题翻译：单磨套管窗切割工具及方法
公开(公告)号：US07370702B2
公开(公告)日：2008-05-13
申请号：US11016540
申请日：2004-12-16
申请人： Calvin Stowe
发明人： Calvin Stowe
IPC分类号： E21B29/06 , E21B7/08
CPC分类号： E21B10/567 , E21B7/061 , E21B29/06
摘要： An apparatus for cutting a window in a casing pipe in a well, having only a single mill with full gage primary cutting inserts of a very hard, highly wear resistant, material. The primary inserts can be protected from damage by forming each blade on the mill with an outside edge profile having a shallower angle than the angle of the whipstock which is used to guide the mill through the casing, preventing the primary inserts from riding directly on the whipstock. The primary inserts on each blade can be further protected from damage by a row of secondary inserts of a relatively more durable material, arranged behind each row of primary inserts, or by a full diameter buffer section of mill body or blade.
摘要翻译：一种用于在井中的套管中切割窗户的装置，其仅具有仅具有非常硬，高度耐磨的材料的全量具初级切削刀片的单个磨机。可以通过在磨机上形成每个刀片具有比用于引导磨机穿过套管的造斜器角度更浅的角度的外角边缘轮廓来防止主要刀片受到损坏，从而防止主刀片直接骑在造斜器可以进一步防止每个刀片上的主要插入物被排列在每排主要插入件后面的相对更耐用的材料的一排辅助插入件或磨机主体或刀片的全直径缓冲部分所损坏。

10. 发明申请

US20070261840A1 Exit window milling assembly with improved restraining force 有权
标题翻译：出口窗铣削组件具有改进的约束力
公开(公告)号：US20070261840A1
公开(公告)日：2007-11-15
申请号：US11434358
申请日：2006-05-15
申请人： Calvin Stowe , Evan Lewis , Mohan Soni , Daniel Hart
发明人： Calvin Stowe , Evan Lewis , Mohan Soni , Daniel Hart
IPC分类号： E21B23/03
CPC分类号： E21B29/06
摘要： An assembly for milling a window in a tubular features a layout that keeps a restorative force normal to the whipstock slope acting on the window mill to help it track the whipstock ramp long enough for making an exit at the desired location. A string mill assembly is made long enough to allow such a restorative force to be created on the window mill as it advances down the ramp. The bearing or cutting structures on the string mill are positioned with respect to the window mill so that either the top of the string mill or at least the first bearing structure above the window mill presents at the top of the window as the window mill arrives at the position where it is desired that it make an exit. The lower bearing structure of the string mill also preferably has a rounded profile to facilitate its entrance on to the whipstock ramp without getting in a bind on the tubular wall adjacent the top of the window.
摘要翻译：用于铣削管道中的窗口的组件具有一种布局，其将恢复力保持垂直于作用在窗玻璃上的造斜斜坡，以帮助其跟踪造斜斜坡，足以使其在所需位置处出口。弦碾机组件被制成足够长的时间，以允许在窗碾机上沿着斜坡进入时产生这样的修复力。串磨机上的轴承或切割结构相对于窗口磨机定位，使得当研磨机到达时，弦磨机的顶部或窗玻璃上方的至少第一轴承结构呈现在窗口的顶部希望它退出的位置。串磨机的下轴承结构也优选具有圆形轮廓，以便于其进入造斜坡坡道而不会在邻近窗口顶部的管状壁上结合。

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