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公开(公告)号：US06290007B1
公开(公告)日：2001-09-18
申请号：US09753096
申请日：2001-01-02
IPC分类号： E21B1026
摘要： A rotary drag bit suitable for directional drilling. The bit includes a bit body from which extend radially-oriented blades carrying PDC cutters. The blades extend to primary gage pads, above which secondary gage pads are either longitudinally spaced or rotationally spaced, or both, defining a gap or discontinuity between the primary and secondary gage pads through which drilling fluid from adjacent junk slots may communicate laterally or circumferentially. Longitudinally leading edges of the secondary gage pads carry cutters, such as chisel-shaped cutters for smoothing the sidewall of the borehole. The cutters are preferably configured and oriented so as to provide a relatively aggressive cutting edge to the formation in both longitudinal and rotational directions of bit movement. Cutters may likewise be disposed on the trailing ends of the secondary gage pads to provide an up-drill capability to facilitate removal of the bit from the borehole.
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2.发明授权Rotary drill bits for directional drilling employing tandem gage pad arrangement with cutting elements and up-drill capability 失效用于定向钻孔的旋转钻头，采用具有切割元件和上钻能力的串联量规垫公开(公告)号：US06321862B1
公开(公告)日：2001-11-27
申请号：US09129302
申请日：1998-08-05
申请人： Christopher C. Beuershausen , Robert J. Costo, Jr. , Danny E. Scott , Rudolf C. O. Pessier , Roland Illerhaus , Mark W. Dykstra , James A. Norris , Michael P. Ohanian , John R. Spaar
发明人： Christopher C. Beuershausen , Robert J. Costo, Jr. , Danny E. Scott , Rudolf C. O. Pessier , Roland Illerhaus , Mark W. Dykstra , James A. Norris , Michael P. Ohanian , John R. Spaar
IPC分类号： E21B1026
CPC分类号： E21B17/1092 , E21B10/46
摘要： A rotary drag bit suitable for directional drilling. The bit includes a bit body from which extend radially-oriented blades carrying PDC cutters. The blades extend to primary gage pads, above which secondary gage pads are either longitudinally spaced or rotationally spaced, or both, defining a gap or discontinuity between the primary and secondary gage pads through which drilling fluid from adjacent junk slots may communicate laterally or circumferentially. Longitudinally leading edges of the secondary gage pads carry cutters for smoothing the sidewall of the borehole. The cutters are preferably configured and oriented so as to provide a relatively aggressive cutting edge to the formation in both longitudinal and rotational directions of bit movement, the cutting edges lying adjacent cutting surfaces preferably disposed at negative rake angles to the formation material of the borehole wall for enhanced durability. Cutters may likewise be disposed on the trailing ends of the secondary gage pads to provide an up-drill capability to facilitate removal of the bit from the borehole. The tandem primary and secondary gage pads provide enhanced bit stability and reduced side cutting tendencies. The discontinuities between the primary and secondary gage pads enhance fluid flow from the bit face to the borehole annulus above the bit, promoting formation cuttings removal. The tandem gage arrangement also has utility in conventional bits not designed specifically for directional drilling.
摘要翻译： 适用于定向钻孔的旋转牵引钻头。 该钻头包括一个承载PDC切割器的径向定向刀片的位体。 叶片延伸到主量规焊盘，在其上方，二次量规焊盘沿纵向间隔开或旋转间隔开，或两者限定了初级和次级量规焊盘之间的间隙或不连续性，通过该间隙或不连续性，来自相邻垃圾槽的钻井液体可横向或周向地连通。 二次测量垫的纵向前缘带有切割器，用于平滑钻孔的侧壁。 切割器优选地构造和定向成在钻头移动的纵向和旋转方向上向地层提供相对侵蚀性的切割边缘，切割边缘位于切割表面附近，优选地设置成与钻孔壁的形成材料成负向的前角 以提高耐久性。 切割器同样可以设置在二次量规焊盘的尾端上，以提供上钻能力以便于从钻孔中移除钻头。 串联一次和二次测量垫提供增强的位稳定性和减少的侧切倾向。 主和二次测量垫之间的不连续性增强了从钻头面到钻头上方的钻孔环之间的流体流动，促进了去除切屑。 串联量规布置也可用于不专门用于定向钻孔的常规钻头中。
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公开(公告)号：US09494006B2
公开(公告)日：2016-11-15
申请号：US13966032
申请日：2013-08-13
申请人： Brian Mohon , Robert J. Costo, Jr.
发明人： Brian Mohon , Robert J. Costo, Jr.
摘要： Implementations described herein are directed to a pressure pulse well tool, which may include an upper valve assembly configured to move between a start position and a stop position in a housing. The pressure pulse well tool may also include an activation valve subassembly disposed within the upper valve assembly. The activation valve subassembly may be configured to restrict a fluid flow through the upper valve assembly and increase a fluid pressure across the upper valve assembly. The pressure pulse well tool may further include a lower valve assembly disposed inside the housing and configured to receive the fluid flow from the upper valve assembly. The lower valve assembly may be configured to separate from the upper valve assembly after the upper valve assembly reaches the stop position, causing the fluid flow to pass through the lower valve assembly and to decrease the fluid pressure across the upper valve assembly.
摘要翻译： 这里描述的实施例涉及一种压力脉冲井工具，其可以包括构造成在壳体中的起始位置和停止位置之间移动的上部阀组件。 压力脉冲井工具还可以包括设置在上阀组件内的启动阀子组件。 活化阀子组件可以构造成限制流过上阀组件的流体流，并且增加穿过上阀组件的流体压力。 压力脉冲井工具还可以包括设置在壳体内并被配置为接收来自上阀组件的流体流的下阀组件。 下阀组件可以被构造成在上阀组件到达停止位置之后与上阀组件分离，使得流体流动通过下阀组件并降低穿过上阀组件的流体压力。
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公开(公告)号：US08491013B2
公开(公告)日：2013-07-23
申请号：US11854283
申请日：2007-09-12
CPC分类号： E21B33/05 , Y10T403/32893
摘要： A cementing swivel includes an outer stationary member having a cement port, an inner rotating member with a bore therethrough, and a torque indicating member coupled to the outer stationary member and configured to provide a visual indication that a predetermined torque load has been reached.
摘要翻译： 固井旋转体包括具有水泥口的外部固定构件，具有穿过其中的孔的内部旋转构件，以及联接到外部固定构件并被构造成提供已经达到预定扭矩载荷的视觉指示的扭矩指示构件。
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公开(公告)号：US08065935B2
公开(公告)日：2011-11-29
申请号：US12395016
申请日：2009-02-27
IPC分类号： B21K5/04
CPC分类号： E21B10/55 , E21B10/573 , Y10T29/49721 , Y10T29/49737
摘要： A rotary drag bit for drilling a subterranean formation includes a plurality of support elements affixed to the bit body, each forming at least a portion of a cutting element pocket. Each of a plurality of cutting elements has a substantially cylindrical body and is at least partially disposed within a cutter pocket. At least a portion of the substantially cylindrical body of each cutting element is directly secured to at least a portion of a substantially arcuate surface of the bit body. At least a portion of a substantially planar surface of each cutting element matingly engages at least a portion of a substantially planar surface of a support element.
摘要翻译： 用于钻探地层的旋转牵引钻头包括固定到钻头体上的多个支撑元件，每个支撑元件形成切割元件凹槽的至少一部分。 多个切割元件中的每一个具有基本上圆柱形的主体并且至少部分地设置在切割器凹槽内。 每个切割元件的基本圆柱形主体的至少一部分直接固定到钻头体的基本上弓形表面的至少一部分上。 每个切割元件的基本平坦的表面的至少一部分配合地接合支撑元件的基本平坦的表面的至少一部分。
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6.发明授权Fixed cutter rotary drill bit including support elements affixed to the bit body at least partially defining cutter pocket recesses 有权固定切割器旋转钻头，其包括固定到钻头体上的支撑元件，至少部分地限定切割器凹槽公开(公告)号：US07520345B2
公开(公告)日：2009-04-21
申请号：US11725950
申请日：2007-03-20
IPC分类号： E21B10/46
CPC分类号： E21B10/55 , E21B10/573 , Y10T29/49721 , Y10T29/49737
摘要： A rotary drag bit for drilling a subterranean formation includes a plurality of support elements affixed to the bit body, each forming at least a portion of a cutting element pocket. Each of a plurality of cutting elements has a substantially cylindrical body and is at least partially disposed within a cutter pocket. At least a portion of the substantially cylindrical body of each cutting element is directly secured to at least a portion of a substantially arcuate surface of the bit body. At least a portion of a substantially planar surface of each cutting element matingly engages at least a portion of a substantially planar surface of a support element.
摘要翻译： 用于钻探地层的旋转牵引钻头包括固定到钻头体上的多个支撑元件，每个支撑元件形成切割元件凹槽的至少一部分。 多个切割元件中的每一个具有基本上圆柱形的主体并且至少部分地设置在切割器凹槽内。 每个切割元件的基本圆柱形主体的至少一部分直接固定到钻头体的基本上弓形表面的至少一部分上。 每个切割元件的基本平坦的表面的至少一部分配合地接合支撑元件的基本平坦的表面的至少一部分。
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7.发明授权Methods of manufacturing and repairing steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses 失效制造和修理钢体旋转钻头的方法，其包括固定到钻头体上的支撑元件，至少部分地限定切割器凹槽公开(公告)号：US07216565B2
公开(公告)日：2007-05-15
申请号：US11374918
申请日：2006-03-14
IPC分类号： B21K5/04
CPC分类号： E21B10/55 , E21B10/573 , Y10T29/49721 , Y10T29/49737
摘要： A steel body rotary drag bit for drilling a subterranean formation includes a plurality of support elements affixed to the bit body, each forming at least a portion of a cutting element pocket. Each of a plurality of cutting elements has a substantially cylindrical body and is at least partially disposed within a cutter pocket. At least a portion of the substantially cylindrical body of each cutting element is directly secured to at least a portion of a substantially arcuate surface of the bit body. At least a portion of a substantially planar surface of each cutting element matingly engages at least a portion of a substantially planar surface of a support element.
摘要翻译： 用于钻探地层的钢体旋转牵引钻头包括固定到钻头体上的多个支撑元件，每个支撑元件形成切割元件袋的至少一部分。 多个切割元件中的每一个具有基本上圆柱形的主体并且至少部分地设置在切割器凹槽内。 每个切割元件的基本圆柱形主体的至少一部分直接固定到钻头体的基本上弓形表面的至少一部分上。 每个切割元件的基本平坦的表面的至少一部分配合地接合支撑元件的基本平坦的表面的至少一部分。
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8.发明授权Steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses 有权钢体旋转钻头包括固定到钻头体上的支撑元件，至少部分地限定切割器凹槽公开(公告)号：US07070011B2
公开(公告)日：2006-07-04
申请号：US10715050
申请日：2003-11-17
IPC分类号： E21B10/46
CPC分类号： E21B10/55 , E21B10/573 , Y10T29/49721 , Y10T29/49737
摘要： A steel body rotary drag bit for drilling a subterranean formation includes a plurality of support elements affixed to the bit body, each forming at least a portion of a cutting element pocket. Each of a plurality of cutting elements has a substantially cylindrical body and is at least partially disposed within a cutter pocket. At least a portion of the substantially cylindrical body of each cutting element is directly secured to at least a portion of a substantially arcuate surface of the bit body. At least a portion of a substantially planar surface of each cutting element matingly engages at least a portion of a substantially planar surface of a support element.
摘要翻译： 用于钻探地层的钢体旋转牵引钻头包括固定到钻头体上的多个支撑元件，每个支撑元件形成切割元件袋的至少一部分。 多个切割元件中的每一个具有基本上圆柱形的主体并且至少部分地设置在切割器凹槽内。 每个切割元件的基本圆柱形主体的至少一部分直接固定到钻头体的基本上弓形表面的至少一部分上。 每个切割元件的基本平坦的表面的至少一部分配合地接合支撑元件的基本平坦的表面的至少一部分。
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公开(公告)号：US06651756B1
公开(公告)日：2003-11-25
申请号：US09715406
申请日：2000-11-17
申请人： Robert J. Costo, Jr. , James L. Overstreet , Anton F. Zahradnik , James L. Duggan , Russel S. Smith , Mark E. Morris
发明人： Robert J. Costo, Jr. , James L. Overstreet , Anton F. Zahradnik , James L. Duggan , Russel S. Smith , Mark E. Morris
IPC分类号： E21B1046
CPC分类号： E21B10/55
摘要： Hardfacing is deposited on a PDC-equipped steel body rotary drag bit and forms substantially protruding structural elements, such as wear knots or chip breakers. Hardfacing may also be applied to features such as gage pads, wherein at least two different hardfacing compositions are utilized and specifically located in order to exploit the material characteristics of each type of hardfacing composition employed. The use of multiple hardfacing compositions may further be employed as a wear-resistant coating on various elements of the drill bit. The surfaces to which hardfacing is applied may include machined slots, cavities or grooves providing increased surface area for application of the hardfacing. Additionally, such surface features may serve to effect a desired residual stress state in the resultant hardfacing layer or other structure.
摘要翻译： 表面硬化层沉积在配备PDC的钢体旋转阻力钻头上并形成基本上突出的结构元件，例如磨损结或断屑槽。 表面硬化也可以应用于诸如量具垫的特征，其中使用至少两种不同的表面硬化组合物并且特别地定位以便利用所使用的每种类型的表面硬化组合物的材料特性。 多个表面硬化组合物的使用可进一步用作钻头的各种元件上的耐磨涂层。 施加硬化面的表面可以包括加工的槽，空腔或凹槽，其提供用于施加表面硬化的增加的表面积。 此外，这些表面特征可用于在所得的表面硬化层或其它结构中实现所需的残余应力状态。
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