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1. 发明申请

WO2008103417B1 MULTI-LAYER ENCAPSULATION OF DIAMOND GRIT FOR USE IN EARTH-BORING BITS 审中-公开
标题翻译：金刚石砂砾的多层包封用于地钻钻头
公开(公告)号：WO2008103417B1
公开(公告)日：2008-10-23
申请号：PCT/US2008002301
申请日：2008-02-21
申请人： BAKER HUGHES INC , MCCLAIN ERIC E , SCOTT DAN E , FULLER WESLEY DEAN , WELCH ROBERT M , EASON JIMMY W , SKEEM MARCUS R , BRACKIN VAN J
发明人： MCCLAIN ERIC E , SCOTT DAN E , FULLER WESLEY DEAN , WELCH ROBERT M , EASON JIMMY W , SKEEM MARCUS R , BRACKIN VAN J
IPC分类号： C22C32/00 , B22F1/02 , C22C1/05 , C22C26/00
CPC分类号： C22C26/00 , B22F2005/001 , B22F2998/00 , C22C1/101 , C22C1/1036 , B22F1/02 , B22F1/025 , C22C1/05
摘要： A method of constructing an earth-boring, diamond-impregnated drill bit has a first step of coating diamond grit with tungsten to create tungsten-coated diamond particles. These coated particles are then encapsulated in a layer of carbide powder held by an organic green binder material. The encapsulated granules are then mixed along with a matrix material and placed in a mold. The matrix material includes a matrix binder and abrasive particles. The mixture is heated in the mold at atmospheric pressure to cause the matrix binder to melt and infiltrate the encapsulated granules and abrasive particles.
摘要翻译：一种构造钻地钻石浸渍钻头的方法具有用钨涂覆金刚石砂砾以产生钨涂覆的金刚石颗粒的第一步骤。然后将这些涂覆的颗粒封装在由有机绿色粘合剂材料保持的碳化物粉末层中。然后将包封的颗粒与基体材料一起混合并置于模具中。基质材料包括基质粘合剂和磨粒。在大气压下将混合物在模具中加热，使基质粘合剂熔化并渗透封装的颗粒和磨粒。

2. 发明申请

WO2009059088A3 IMPREGNATED ROTARY DRAG BIT AND RELATED METHODS 审中-公开
标题翻译：引入轮转位和相关方法
公开(公告)号：WO2009059088A3
公开(公告)日：2009-11-12
申请号：PCT/US2008081927
申请日：2008-10-31
申请人： BAKER HUGHES INC , MCCLAIN ERIC E , SKEEM MARCUS R
发明人： MCCLAIN ERIC E , SKEEM MARCUS R
IPC分类号： E21B10/43 , E21B10/54
CPC分类号： E21B10/54 , E21B10/16 , E21B10/43
摘要： A drill bit (100) is provided that employs a plurality of discrete, post-like, abrasive, particulate-impregnated cutting structures (118) extending upwardly from the bit face. The cutting structures may be disposed on abrasive, particulate-impregnated blades (108) that also define a plurality of fluid passages (116) on the bit face (106). One or more of the cutting structures may include outermost ends that exhibit a cross-sectional geometry that is elongated in a direction along a defined axis. The cutting structures may be oriented such that the defined axis (132) is neither coplanar with, nor parallel to, an intended rotational path of the at least one discrete cutting structure during operation of the bit. In one embodiment, the cutting structure is oriented such that the defined axis is at an acute angle relative to a tangent of the intended rotational path for the associated cutting structure. Other or different features may include, for example, additional, differently configured cutting elements.
摘要翻译：提供了一种钻头（100），其采用从钻头面向上延伸的多个离散的，类似后，磨料的颗粒浸渍的切割结构（118）。切割结构可以设置在研磨性颗粒浸渍的刀片（108）上，刀片也在钻头面（106）上限定多个流体通道（116）。一个或多个切割结构可以包括表现出沿着限定的轴线的方向伸长的横截面几何形状的最外端。切割结构可以被定向成使得在钻头的操作期间，限定的轴线（132）既不与至少一个离散切割结构的预期旋转路径共面，也不平行。在一个实施例中，切割结构被定向成使得限定的轴线相对于相关切割结构的预期旋转路径的切线成锐角。其他或不同的特征可以包括例如附加的不同构造的切割元件。

3. 发明申请

WO2010045170A4 DRILL BIT WITH CONTINUOUSLY SHARP EDGE CUTTING ELEMENTS 审中-公开
公开(公告)号：WO2010045170A4
公开(公告)日：2010-07-01
申请号：PCT/US2009060413
申请日：2009-10-13
申请人： BAKER HUGHES INC , WELCH ROBERT M , MCCLAIN ERIC E , SINOR L ALLEN
发明人： WELCH ROBERT M , MCCLAIN ERIC E , SINOR L ALLEN
IPC分类号： E21B10/46 , E21B10/48
CPC分类号： E21B10/43 , B22F2005/001 , B22F2998/00 , C22C2204/00 , E21B10/006 , C22C26/00 , C22C29/06
摘要： A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade having a curved outer edge and a forward face; a first row of cutter pockets recessed into the face along the outer edge of each blade; a second group of cutter pockets recessed into the face of each blade offset from the first row; and a plurality of cutting elements, each cutting element being brazed into a different one of the cutter pockets.

4. 发明申请

WO2010045167A3 DRILL BIT WITH CONTINOUSLY SHARP EDGE CUTTING ELEMENTS 审中-公开
标题翻译：具有连续夏普切割元素的钻头
公开(公告)号：WO2010045167A3
公开(公告)日：2010-07-01
申请号：PCT/US2009060408
申请日：2009-10-13
申请人： BAKER HUGHES INC , WELCH ROBERT M , MCCLAIN ERIC E , SINOR L ALLEN
发明人： WELCH ROBERT M , MCCLAIN ERIC E , SINOR L ALLEN
IPC分类号： E21B10/46 , E21B10/48
CPC分类号： E21B10/43
摘要： A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade having a curved outer edge and a forward face; a first row of cutter pockets recessed into the face along the outer edge of each blade; a second group of cutter pockets recessed into the face of each blade offset from the first row; and a plurality of cutting elements, each cutting element being brazed into a different one of the cutter pockets.
摘要翻译：一种优化钻头设计的方法和用于将井钻入包括钻头体的地层中的优化钻头; 围绕钻头体间隔开的多个刀片，每个刀片具有弯曲的外边缘和前表面; 沿着每个叶片的外边缘凹入到所述面中的第一排刀槽; 第二组切割器凹槽凹入到从第一排偏移的每个叶片的表面中; 和多个切割元件，每个切割元件被钎焊到不同的一个刀具凹口中。

5. 发明申请

WO2010045164A2 DRILL BIT WITH CONTINUOUSLY SHARP EDGE CUTTING ELEMENTS 审中-公开
公开(公告)号：WO2010045164A2
公开(公告)日：2010-04-22
申请号：PCT/US2009060404
申请日：2009-10-13
申请人： BAKER HUGHES INC , WELCH ROBERT M , MCCLAIN ERIC E , SINOR ALLEN L
发明人： WELCH ROBERT M , MCCLAIN ERIC E , SINOR ALLEN L
IPC分类号： E21B10/46 , E21B10/48
CPC分类号： E21B10/56 , E21B10/43 , E21B2010/562
摘要： A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade having a curved outer edge and a forward face; a first row of cutter pockets recessed into the face along the outer edge of each blade; a second group of cutter pockets recessed into the face of each blade offset from the first row; and a plurality of cutting elements, each cutting element being brazed into a different one of the cutter pockets.

6. 发明申请

WO2010045165A3 DRILL BIT WITH CONTINUOUSLY SHARP EDGE CUTTING ELEMENTS 审中-公开
公开(公告)号：WO2010045165A3
公开(公告)日：2010-07-01
申请号：PCT/US2009060405
申请日：2009-10-13
申请人： BAKER HUGHES INC , WELCH ROBERT M , MCCLAIN ERIC E , SINOR L ALLEN
发明人： WELCH ROBERT M , MCCLAIN ERIC E , SINOR L ALLEN
IPC分类号： E21B10/46 , E21B10/48
CPC分类号： E21B10/43
摘要： A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade having a curved outer edge and a forward face; a first row of cutter pockets recessed into the face along the outer edge of each blade; a second group of cutter pockets recessed into the face of each blade offset from the first row; and a plurality of cutting elements, each cutting element being brazed into a different one of the cutter pockets.

7. 发明申请

WO2010025313A3 DRILLING OUT CASING BITS WITH OTHER CASING BITS 审中-公开
公开(公告)号：WO2010025313A3
公开(公告)日：2010-04-29
申请号：PCT/US2009055272
申请日：2009-08-28
申请人： BAKER HUGHES INC , MCCLAIN ERIC E , THOMAS JOHN CLAYTON
发明人： MCCLAIN ERIC E , THOMAS JOHN CLAYTON
IPC分类号： E21B10/43 , E21B10/567 , E21B17/14
CPC分类号： E21B17/14 , E21B7/20 , E21B10/43 , E21B10/567
摘要： The drilling of a casing bit and any other equipment in the casing with another casing bit where at least two casing bits of different diameter and having associated casing sections may be assembled to form a drilling assembly for drilling subterranean formations, the at least two casing bits and casing sections are arranged in a telescoping relationship.

8. 发明申请

WO2008092130B1 ROTARY DRAG BIT AND METHODS THEREFOR 审中-公开
标题翻译：旋转拖动钻头及其方法
公开(公告)号：WO2008092130B1
公开(公告)日：2008-10-23
申请号：PCT/US2008052128
申请日：2008-01-25
申请人： BAKER HUGHES INC , MCCLAIN ERIC E , GAVIA DAVID , SNELL LANE E , HOINES JASON E , ISBELL MATTHEW R , DOSTER MICHAEL L
发明人： MCCLAIN ERIC E , GAVIA DAVID , SNELL LANE E , HOINES JASON E , ISBELL MATTHEW R , DOSTER MICHAEL L
IPC分类号： E21B10/43
CPC分类号： E21B10/55 , E21B10/43
摘要： A rotary drag bit includes a primary cutter row (141) comprising at least one primary cutter, and at least two additional cutters configured relative to one another (19, 20, 21). In one embodiment, the cutters are backup cutters of a cutter group located in respective first and second trailing cutter rows (153), oriented relative to one another, and positioned to substantially follow the at least one primary cutter The rotary drag bit life is extended by the backup cutter group, making the bit more durable and extending the life of the cutters In other of the embodiments, the cutters are configured to selectively engage a subterranean formation material being drilled, providing improved bit life and reduced stress upon the cutters Still other embodiments of rotary drag bits include backup cutter configurations having different backrake angles and siderake angles, including methods therefor.
摘要翻译：旋转刮刀钻头包括包括至少一个主切割器的主切割器行（141）和相对于彼此（19,20,21）构造的至少两个另外的切割器。在一个实施例中，切割器是位于相应的第一和第二拖尾切割器排（153）中的切割器组的后备切割器，其相对于彼此定向并且定位成基本跟随至少一个主切割器。旋转拖拉钻头寿命延长通过备用刀具组使钻头更耐用并且延长刀具的使用寿命。在其他实施例中，刀具被构造成选择性地接合正在钻探的地下地层材料，从而提供改善的钻头寿命并减小刀具上的应力。旋转刮刀钻头的实施例包括具有不同的后倾角和侧倾角的备用切割器配置，包括其方法。

9. 发明申请

WO2009046082A2 CUTTING STRUCTURES FOR CASING COMPONENT DRILLOUT AND EARTH-BORING DRILL BITS INCLUDING SAME 审中-公开
标题翻译：用于铸造组件钻孔和接地钻孔钻头的切割结构
公开(公告)号：WO2009046082A2
公开(公告)日：2009-04-09
申请号：PCT/US2008078414
申请日：2008-10-01
申请人： BAKER HUGHES INC , MCCLAIN ERIC E , DOSTER MICHAEL L , ISBELL MATT , DEGEORGE JAROD , THOMAS JOHN CLAYTON , JURICA CHAD T
发明人： MCCLAIN ERIC E , DOSTER MICHAEL L , ISBELL MATT , DEGEORGE JAROD , THOMAS JOHN CLAYTON , JURICA CHAD T
IPC分类号： E21B10/54
CPC分类号： E21B10/43 , E21B10/485 , E21B29/06
摘要： A drill bit includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation and the second type being at least one of an abrasive cutting structure and an abrasive cutting element suitable for drilling through a casing shoe, reamer shoe, casing bit, casing or liner string and cementing equipment or other components as well as cement. Methods of forming earth-boring tools are also disclosed.
摘要翻译：钻头包括具有一个面的钻头体，其上设有两种不同类型的切割器，第一类型是适于钻取至少一个地下地层的切割元件，第二类型是磨料切割结构和磨料中的至少一种适用于通过套管，扩孔器，套管钻头，套管或衬管线以及固井设备或其他部件以及水泥钻孔的切削元件。还公开了形成钻孔工具的方法。

10. 发明申请

WO2008091654A2 ROTARY DRAG BIT 审中-公开
标题翻译：旋转拖轮位
公开(公告)号：WO2008091654A2
公开(公告)日：2008-07-31
申请号：PCT/US2008000914
申请日：2008-01-24
申请人： BAKER HUGHES INC , SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
发明人： SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
IPC分类号： E21B10/43
CPC分类号： E21B10/55 , E21B10/43
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter and a multiple backup cutter group. The multiple backup cutter group comprises a first and second trailing cutter row, each comprising at least one cutter positioned to follow the at least one primary cutter. The rotary drag bit life is extended by the multiple backup cutter group, making the bit more durable and extending the life of the cutters. Further, the cutters of the multiple backup cutter group are configured to selectively engage a subterranean formation material being drilled, providing improved bit life and reduced stress upon the cutters. Other embodiments of rotary drag bits are provided.
摘要翻译：旋转牵引钻头包括主切割器行，其包括至少一个主切割器和多个备用切割器组。多个备用切割器组包括第一和第二拖尾切割器排，每个包括至少一个定位成跟随至少一个主切割器的切割器。旋转拖曳钻头寿命由多支撑刀具组延长，使钻头更耐用，延长刀具寿命。此外，多支撑切割器组的切割器构造成选择性地接合正被钻孔的地下地层材料，提供改善的钻头寿命并减小切割器上的应力。提供旋转阻力钻头的其他实施例。

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