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1.发明授权公开(公告)号：US06883623B2
公开(公告)日：2005-04-26
申请号：US10268595
申请日：2002-10-09
申请人： Ronny D. McCormick , Mumtaz Ball , Mark E. Anderson , Mark W. Dykstra , Michael L. Doster , Matthew R. Isbell
发明人： Ronny D. McCormick , Mumtaz Ball , Mark E. Anderson , Mark W. Dykstra , Michael L. Doster , Matthew R. Isbell
CPC分类号： E21B10/55 , E21B10/46 , E21B17/1092
摘要： A rotary drill bit for drilling subterranean formations configured with at least one protective structure proximate to the rotationally leading and trailing edges of a gage trimmer, wherein the at least one protective structure is positioned at substantially the same exposure as its associated gage trimmer. Particularly, the apparatus of the present invention may provide protection for gage trimmers during drilling, tripping, and/or rotation within a casing; i.e., when changing a drilling fluid. Protective structures may be configured and located according to anticipated drilling conditions including helix angles. In addition, a protective structure may be proximate to more than one gage trimmer while having a substantially equal exposure to each associated gage trimmer. Methods of use and a method of rotary bit design are also disclosed.
摘要翻译： 一种用于钻探地下结构的旋转钻头，其配置有靠近量规修剪器的旋转前缘和后缘的至少一个保护结构，其中所述至少一个保护结构定位在与其相关联的量具修剪器基本相同的曝光处。 特别地，本发明的装置可以在套管内的钻孔，脱扣和/或旋转期间提供对量规修剪器的保护; 即，当改变钻井液时。 可以根据包括螺旋角度的预期钻井条件来构造和定位保护结构。 此外，保护结构可以接近多于一个量具修剪器，同时具有与每个相关联的量具修剪器基本相等的曝光。 还公开了使用方法和旋转钻头设计的方法。
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2.发明授权Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped 有权超级磨料切割组件，包括不同方向的切割器和如此装备的钻头公开(公告)号：US06408958B1
公开(公告)日：2002-06-25
申请号：US09694518
申请日：2000-10-23
申请人： Matthew R. Isbell , Rudolf C. O. Pessier , Michael L. Doster , Mark W. Dykstra , William H. Heuser
发明人： Matthew R. Isbell , Rudolf C. O. Pessier , Michael L. Doster , Mark W. Dykstra , William H. Heuser
IPC分类号： E21B1016
CPC分类号： E21B10/43 , E21B10/567 , E21B10/602
摘要： A cutting assembly comprised of first and second superabrasive cutting elements including at least one rotationally leading cutting element having a cutting face oriented generally in a direction of intended rotation of a bit on which the assembly is mounted to cut a subterranean formation with a cutting edge at an outer periphery of the cutting face, and a rotationally trailing cutting element oriented substantially transverse to the direction of intended bit rotation and including a relatively thick superabrasive table configured to cut the formation with a cutting edge located between a beveled surface at the side of the superabrasive table and an end face thereof. A rotationally trailing cutting element may be associated with and disposed at a location on the bit at least partially laterally intermediate locations of two rotationally leading cutting elements. Drill bits equipped with the cutting assembly are also disclosed.
摘要翻译： 一种由第一和第二超级磨料切割元件组成的切割组件，包括至少一个旋转导向切割元件，该切割元件具有大致沿钻头的预期旋转方向定向的切割面，在该切割方向上安装有组件以切割具有切割边缘的地下岩层 切割面的外周边，以及基本上横向于预期钻头旋转方向定向的旋转后切割元件，并且包括相对较厚的超级磨料台，其被配置为用切割边缘切割地层，所述切割边缘位于所述切割面侧面的倾斜表面之间 超研磨台及其端面。 旋转拖尾切割元件可以与两个旋转导向的切割元件的至少部分横向中间位置相关联并且布置在钻头上的位置处。 还公开了配有切割组件的钻头。
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3.发明申请CUTTING STRUCTURES FOR CASING COMPONENT DRILLOUT AND EARTH BORING DRILL BITS INCLUDING SAME 有权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：US20090084608A1
公开(公告)日：2009-04-02
申请号：US12030110
申请日：2008-02-12
申请人： Eric E. McClain , Michael L. Doster , John C. Thomas , Matthew R. Isbell , Jarod DeGeorge , Chad T. Jurica
发明人： Eric E. McClain , Michael L. Doster , John C. Thomas , Matthew R. Isbell , Jarod DeGeorge , Chad T. Jurica
IPC分类号： E21B10/42
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研磨剂中的至少一种 适用于通过套管，扩孔器，套管钻头，套管或衬套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。
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公开(公告)号：US20080179108A1
公开(公告)日：2008-07-31
申请号：US12020492
申请日：2008-01-25
申请人： Eric E. McClain , David Gavia , Lane E. Snell , Jason E. Hoines , Matthew R. Isbell , Michael L. Doster
发明人： Eric E. McClain , David Gavia , Lane E. Snell , Jason E. Hoines , Matthew R. Isbell , Michael L. Doster
IPC分类号： E21B10/43
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter, and at least two additional cutters configured relative to one another. In one embodiment, the cutters are backup cutters of a cutter group located in respective first and second trailing cutter rows, 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： 旋转牵引钻头包括主切割器行，其包括至少一个主切割器，以及至少两个相对于彼此配置的附加切割器。 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行中的切割器组的备用切割器，其相对于彼此定向并且被定位成基本上跟随至少一个主切割器。 旋转拖曳钻头的寿命由后备刀具组延长，使钻头更耐用，延长刀具的使用寿命。 在其他实施例中，切割器被配置为选择性地接合正在钻孔的地下地层材料，提供改善的钻头寿命并减少切割器上的应力。 旋转拖曳钻头的其他实施例包括具有不同的反向角度和擒挡角度的后备刀具配置，包括其方法。
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5.发明授权Cutting element placement on a fixed cutter drill bit to reduce diamond table fracture 有权切割元件放置在固定的切割钻头上，以减少钻石台骨折公开(公告)号：US09359825B2
公开(公告)日：2016-06-07
申请号：US12537899
申请日：2009-08-07
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.
摘要翻译： 旋转牵引钻头包括主切割器行，其包括安装在叶片上的至少一个主切割器，主切割器列中的至少一些切割器具有其切割表面的一部分由叶片的一部分覆盖。 还可以包括包括至少一个切割器的备用切割器排，并且备用切割器行中的至少一些切割器的切割表面的至少一部分被叶片的一部分覆盖。 针对冲击载荷提供了对刀具的增强支撑。
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6.发明申请CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE 有权切割元件放置在固定的切割钻头上，以减少钻石表的碎片公开(公告)号：US20120234608A9
公开(公告)日：2012-09-20
申请号：US12537899
申请日：2009-08-07
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.
摘要翻译： 旋转牵引钻头包括主切割器行，其包括安装在叶片上的至少一个主切割器，主切割器列中的至少一些切割器具有其切割表面的一部分由叶片的一部分覆盖。 还可以包括包括至少一个切割器的备用切割器排，并且备用切割器行中的至少一些切割器的切割表面的至少一部分被叶片的一部分覆盖。 针对冲击载荷提供了对刀具的增强支撑。
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7.发明授权公开(公告)号：US08177001B2
公开(公告)日：2012-05-15
申请号：US13095032
申请日：2011-04-27
申请人： Eric E. McClain , Michael L. Doster , John C. Thomas , Matthew R. Isbell , Jarod DeGeorge , Chad T. Jurica
发明人： Eric E. McClain , Michael L. Doster , John C. Thomas , Matthew R. Isbell , Jarod DeGeorge , Chad T. Jurica
IPC分类号： E21B10/43
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 include disposing at least one abrasive cutting structure or element on the earth-boring tool. Methods of drilling with earth-boring tools including drilling with at least one abrasive cutting structure or element.
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研磨剂中的至少一种 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割元件。 形成钻孔工具的方法包括在钻孔工具上设置至少一个研磨切割结构或元件。 使用钻孔工具进行钻孔的方法，包括用至少一个研磨切割结构或元件进行钻孔。
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公开(公告)号：US07861809B2
公开(公告)日：2011-01-04
申请号：US12019814
申请日：2008-01-25
申请人： David Gavia , Ryan J. Hanford , Lane E. Snell , Jason E. Hoines , Matthew R. Isbell , Eric E. McClain , Michael L. Doster
发明人： David Gavia , Ryan J. Hanford , Lane E. Snell , Jason E. Hoines , Matthew R. Isbell , Eric E. McClain , Michael L. Doster
IPC分类号： 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 groups 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个支撑刀具组延长，使刀头更加耐用，延长刀具的使用寿命。 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，从而提供改善的钻头寿命并减小刀具上的应力。 提供旋转阻力钻头的其他实施例。
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9.发明授权Cutting structures for casing component drillout and earth-boring drill bits including same 有权用于套管组件钻头和钻孔钻头的切割结构包括它们公开(公告)号：US07954571B2
公开(公告)日：2011-06-07
申请号：US12030110
申请日：2008-02-12
申请人： Eric E. McClain , Michael L. Doster , John C. Thomas , Matthew R. Isbell , Jarod DeGeorge , Chad T. Jurica
发明人： Eric E. McClain , Michael L. Doster , John C. Thomas , Matthew R. Isbell , Jarod DeGeorge , Chad T. Jurica
IPC分类号： E21B10/43
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研磨剂中的至少一种 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割元件。 还公开了形成钻孔工具的方法。
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10.发明申请CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE 有权切割元件放置在固定的切割钻头上，以减少钻石表的碎片公开(公告)号：US20110031029A1
公开(公告)日：2011-02-10
申请号：US12537899
申请日：2009-08-07
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.
摘要翻译： 旋转牵引钻头包括主切割器行，其包括安装在叶片上的至少一个主切割器，主切割器列中的至少一些切割器具有其切割表面的一部分由叶片的一部分覆盖。 还可以包括包括至少一个切割器的备用切割器排，并且备用切割器行中的至少一些切割器的切割表面的至少一部分被叶片的一部分覆盖。 针对冲击载荷提供了对刀具的增强支撑。
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