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1.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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2.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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3.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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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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5.发明申请METHODS OF MANUFACTURING AND REPAIRING ROTARY DRILL BITS INCLUDING SUPPORT ELEMENTS AFFIXED TO THE BIT BODY AT LEAST PARTIALLY DEFINING CUTTER POCKET RECESSES 有权制造和修理旋转钻头位置的方法，其中包括支撑元件与底部部件至少部分定义切割器口袋公开(公告)号：US20090158898A1
公开(公告)日：2009-06-25
申请号：US12395016
申请日：2009-02-27
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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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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7.发明申请METHODS OF ATTACHING A SHANK TO A BODY OF AN EARTH-BORING TOOL INCLUDING A LOAD BEARING JOINT AND TOOLS FORMED BY SUCH METHODS 有权将山体连接到地球工具的方法，包括用这种方法形成的负载轴承和工具公开(公告)号：US20090301787A1
公开(公告)日：2009-12-10
申请号：US12133288
申请日：2008-06-04
申请人： Redd H. Smith , James L. Duggan , Anupam K. Singh
发明人： Redd H. Smith , James L. Duggan , Anupam K. Singh
CPC分类号： E21B10/42 , B23P15/28 , E21B10/00 , Y10T29/49826
摘要： Earth-boring rotary drill bits including a bit body attached to a shank assembly at a joint. In some embodiments, the joint may be configured to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference at the joint. In additional embodiments, the joint may be configured to carry a selected portion of any tensile longitudinal load applied to the drill bit. Methods for attaching a shank assembly to a bit body of an earth-boring rotary drill bit include configuring a joint to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference. Additional embodiments include configuring a joint to carry a selected portion of any tensile longitudinal load applied to the drill bit by mechanical interference.
摘要翻译： 钻孔旋转钻头，其包括在接头处附接到柄组件的钻头体。 在一些实施例中，接头可被配置为承载通过接头处的机械干涉施加到钻头的任何拉伸纵向和旋转载荷的至少一部分。 在另外的实施例中，接头可以被配置为承载施加到钻头的任何拉伸纵向载荷的选定部分。 将柄组件附接到钻孔旋转钻头的钻头体的方法包括构造接头以承载通过机械干涉施加到钻头的任何拉伸纵向和旋转载荷的至少一部分。 另外的实施例包括构造接头以携带通过机械干涉施加到钻头的任何拉伸纵向载荷的选定部分。
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8.发明申请METHODS OF FORMING EARTH-BORING TOOLS USING GEOMETRIC COMPENSATION AND TOOLS FORMED BY SUCH METHODS 有权使用这种方法形成的几何补偿和工具形成地球工具的方法公开(公告)号：US20090301786A1
公开(公告)日：2009-12-10
申请号：US12133245
申请日：2008-06-04
申请人： Redd H. Smith , John H. Stevens , James L. Duggan , Nicholas J. Lyons , Jimmy W. Eason , Oliver Matthews, III
发明人： Redd H. Smith , John H. Stevens , James L. Duggan , Nicholas J. Lyons , Jimmy W. Eason , Oliver Matthews, III
CPC分类号： E21B10/00
摘要： Geometric compensation techniques are used to improve the accuracy by which features may be located on drill bits formed using particle compaction and sintering processes. In some embodiments, a positional error to be exhibited by at least one feature in a less than fully sintered bit body upon fully sintering the bit body is predicted and the at least one feature is formed on the less than fully sintered bit body at a location at least partially determined by the predicted positional error. In other embodiments, bit bodies of earth-boring rotary drill bits are designed to include a design drilling profile and a less than fully sintered bit body is formed including a drilling profile having a shape differing from a shape of the design drilling profile. Less than fully sintered bit bodies of earth-boring rotary drill bits are formed using such methods.
摘要翻译： 使用几何补偿技术来提高使用粒子压实和烧结过程形成的钻头上的特征可以确定的精度。 在一些实施例中，预测了在完全烧结钻头体时，小于完全烧结的钻头体中的至少一个特征所呈现的位置误差，并且在位于不到完全烧结的钻头体的位置上形成至少一个特征 至少部分地由预测的位置误差确定。 在其它实施例中，钻孔旋转钻头的钻头体被设计成包括设计钻孔剖面，并且形成的钻孔轮廓小于完全烧结的钻头体，其具有与设计钻削剖面形状不同的形状。 使用这种方法形成小于钻孔旋转钻头的完全烧结钻头体。
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9.发明申请METHODS OF ATTACHING A SHANK TO A BODY OF AN EARTH-BORING TOOL INCLUDING A LOAD BEARING JOINT AND TOOLS FORMED BY SUCH METHODS 有权将山体连接到地球工具的方法，包括用这种方法形成的负载轴承和工具公开(公告)号：US20110186354A1
公开(公告)日：2011-08-04
申请号：US12919720
申请日：2009-06-03
申请人： Redd H. Smith , James L. Duggan , Anupam K. Singh
发明人： Redd H. Smith , James L. Duggan , Anupam K. Singh
CPC分类号： E21B10/42 , B23P15/28 , E21B10/00 , Y10T29/49826
摘要： Earth-boring rotary drill bits including a bit body attached to a shank assembly at a joint. In some embodiments, the joint may be configured to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference at the joint. In additional embodiments, the joint may be configured to carry a selected portion of any tensile longitudinal load applied to the drill bit. Methods for attaching a shank assembly to a bit body of an earth-boring rotary drill bit include configuring a joint to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference. Additional embodiments include configuring a joint to carry a selected portion of any tensile longitudinal load applied to the drill bit by mechanical interference.
摘要翻译： 钻孔旋转钻头，其包括在接头处附接到柄组件的钻头体。 在一些实施例中，接头可被配置为承载通过接头处的机械干涉施加到钻头的任何拉伸纵向和旋转载荷的至少一部分。 在另外的实施例中，接头可以被配置为承载施加到钻头的任何拉伸纵向载荷的选定部分。 将柄组件附接到钻孔旋转钻头的钻头体的方法包括构造接头以承载通过机械干涉施加到钻头的任何拉伸纵向和旋转载荷的至少一部分。 另外的实施例包括构造接头以携带通过机械干涉施加到钻头的任何拉伸纵向载荷的选定部分。
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10.发明申请EARTH BORING ROTARY DRILL BITS AND METHODS OF MANUFACTURING EARTH BORING ROTARY DRILL BITS HAVING PARTICLE MATRIX COMPOSITE BIT BODIES 有权地球钻机旋转钻头及其制造方法地球钻机旋转钻头钻头具有颗粒基复合材料体公开(公告)号：US20100263935A1
公开(公告)日：2010-10-21
申请号：US12827968
申请日：2010-06-30
申请人： Redd H. Smith , John H. Stevens , James L. Duggan , Nicholas J. Lyons , Jimmy W. Eason , Jared D. Gladney , James A. Oxford , Benjamin J. Chrest
发明人： Redd H. Smith , John H. Stevens , James L. Duggan , Nicholas J. Lyons , Jimmy W. Eason , Jared D. Gladney , James A. Oxford , Benjamin J. Chrest
CPC分类号： E21B10/00 , B22F7/062 , B22F7/08 , B22F2005/001 , B22F2005/002 , B22F2998/00 , B22F2998/10 , C22C26/00 , C22C29/06 , C22C29/14 , C22C29/16 , E21B10/54 , B22F3/162 , B22F3/15 , B22F3/1021
摘要： Methods of forming bit bodies for earth-boring bits include assembling green components, brown components, or fully sintered components, and sintering the assembled components. Other methods include isostatically pressing a powder to form a green body substantially composed of a particle-matrix composite material, and sintering the green body to provide a bit body having a desired final density. Methods of forming earth-boring bits include providing a bit body substantially formed of a particle-matrix composite material and attaching a shank to the body. The body is provided by pressing a powder to form a green body and sintering the green body. Earth-boring bits include a unitary structure substantially formed of a particle-matrix composite material. The unitary structure includes a first region configured to carry cutters and a second region that includes a threaded pin. Earth-boring bits include a shank attached directly to a body substantially formed of a particle-matrix composite material.
摘要翻译： 用于钻孔钻头的钻头体的方法包括组装绿色部件，棕色部件或完全烧结的部件，并烧结组装的部件。 其他方法包括均匀地压制粉末以形成基本上由颗粒 - 基质复合材料组成的生坯，并且烧结生坯以提供具有所需最终密度的钻头体。 形成钻孔钻头的方法包括提供基本上由颗粒 - 基质复合材料形成的钻头体并将柄连接到主体上。 通过按压粉末以形成生坯并烧结生坯体来提供身体。 钻孔钻头包括基本上由颗粒 - 基质复合材料形成的单一结构。 整体结构包括构造成承载切割器的第一区域和包括螺纹销的第二区域。 钻孔钻头包括直接连接到基本上由颗粒 - 基体复合材料形成的主体上的柄。
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