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1. 发明申请

WO2023015130A1 FIXED CUTTER DRILL BITS AND CUTTER ELEMENT ARRANGEMENTS FOR SAME 审中-公开
公开(公告)号：WO2023015130A1
公开(公告)日：2023-02-09
申请号：PCT/US2022/074232
申请日：2022-07-28
申请人： NATIONAL OILWELL DHT, L.P.
发明人： RIVERA, JR., Richard , TIPPLES, Robert Peter Douglas
IPC分类号： E21B10/43 , E21B10/55 , E21B10/567 , E21B10/56 , E21B10/5676
摘要： A drill bit for drilling a borehole in an earthen formation has a central axis and a cutting direction of rotation. The bit includes a bit body configured to rotate about the axis in the cutting direction of rotation. The bit body includes a bit face. The bit also includes a blade extending radially along the bit face. In addition, the bit includes a first cutter element mounted to a cutter-supporting surface of the blade and a second cutter element mounted to the cutter-supporting surface of the blade. The first cutter element has a central axis and includes a first forward-facing cutting face including a first cutting tip distal the cutter supporting surface and a first planar surface extending radially from the first cutting tip toward the central axis of the first cutter element. The first planar surface is oriented at a first effective backrake angle measured between the cutter supporting surface and a surface vector of the first planar surface. The second cutter element has a central axis and comprises a second forward-facing cutting face including a second cutting tip distal the cutter supporting surface and a second planar surface extending radially from the second cutting tip toward the central axis of the second cutter element. The second planar surface is oriented at a second effective backrake angle measured between the cutter supporting surface and a surface vector of the second planar surface. The second effective backrake angle is greater than the first effective backrake angle.

2. 发明申请

WO2022015733A1 WELLBORE REAMING TOOL HAVING FIXED MOUNTED GOUGING CUTTERS 审中-公开
公开(公告)号：WO2022015733A1
公开(公告)日：2022-01-20
申请号：PCT/US2021/041432
申请日：2021-07-13
申请人： SHEAR BITS, INC.
发明人： HERMAN, John, James , HOFFMANSTER, Carl, M.
IPC分类号： E21B10/26 , B21K5/04 , E21B7/28 , E21B10/28 , E21B10/43 , E21B10/55
摘要： A reaming tool includes a reaming tool body configured to be coupled within a drill string or a string of drilling tools. A plurality of reaming blocks is attached to the reaming tool body at circumferentially spaced apart locations. At least one reaming block comprises at least a first row of gouging cutters and a second row of gouging cutters. The gouging cutters in the first row define a first profile. The gouging cutters in the second row define a second profile. The first row is rotationally ahead of the second row. The first profile at any longitudinal position along the at least one reaming block defines a larger reaming diameter than the second profile.

3. 发明申请

WO2021006912A1 DRILL BIT CUTTER 审中-公开
公开(公告)号：WO2021006912A1
公开(公告)日：2021-01-14
申请号：PCT/US2019/041435
申请日：2019-07-11
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： KELLER, Christopher John , ATKINS, William Brian
IPC分类号： E21B10/55 , E21B10/42 , E21B10/00 , E21B10/62
摘要： Provided are systems and methods for wellbore drilling and, more particularly, example embodiments may use of one or more cutting elements including a cutting face with one or more channels capable of steering chip cuttings into an intended direction off of the cutting face of the cutting element for drilling operations. A method may comprise rotating a drill bit to extend a wellbore into a subterranean formation, flowing a drilling fluid through the drill bit, and directing a plurality of formation cuttings away from one or more cutting elements of the drill bit by moving the cuttings along one or more channels on at least a portion of a cutting face of the one or more cutting elements.

4. 发明申请

WO2019191013A1 BOREHOLE CROSS-SECTION STEERING 审中-公开
公开(公告)号：WO2019191013A1
公开(公告)日：2019-10-03
申请号：PCT/US2019/023954
申请日：2019-03-26
申请人： NOVATEK IP, LLC
发明人： DOWNTON, Geoffrey Charles , MARSHALL, Jonathan , WOOLSTON, Scott Richard
IPC分类号： E21B10/62 , E21B10/32 , E21B10/55
摘要： A drill bit forming a borehole in the earth may be urged sideways, creating a curve in the borehole, by a cross-sectional shape of the borehole. For example, a borehole with a cross-sectional shape comprising two circular arcs of distinct radii, one larger and one smaller than a gauge of the drill bit, may push the drill bit away from the smaller circular arc and into the larger circular arc. Forming a borehole with such circular arcs may be accomplished by extending a cutting element from a side of the drill bit for only a portion of a full rotation of the drill bit. The radii and angular ranges occupied by these circular arcs may be adjusted by altering the timing of extension and retraction of the extendable cutting element.

5. 发明申请

WO2019129714A1 SUPERHARD CONSTRUCTIONS & METHODS OF MAKING SAME 审中-公开
公开(公告)号：WO2019129714A1
公开(公告)日：2019-07-04
申请号：PCT/EP2018/086605
申请日：2018-12-21
申请人： ELEMENT SIX (UK) LIMITED
发明人： WANG, Dong
IPC分类号： B22F3/14 , B22F7/06 , C04B35/528 , C04B35/63 , C04B35/645 , E21B10/55 , E21B10/567 , E21B10/56 , B22F3/24 , B22F5/00 , E21B10/573 , C22C26/00
摘要： A super hard polycrystalline construction has a first region having a body of thermally stable polycrystalline super hard material with an exposed surface forming a working surface, and a peripheral side edge, a second region forming a substrate to the first region and a third region interposed between the first and second regions. The third region extends across a surface of the second region along an interface and has a composite material having a first phase comprising a plurality of non-intergrown diamond grains, the majority of the diamond grains having a coating comprising nano-sized BN particles. There is also disclosed a method of making such a construction.

6. 发明申请

WO2014052372A3 DOWNHOLE MILLS AND IMPROVED CUTTING STRUCTURES 审中-公开
标题翻译：卧式切割机和改进的切割结构
公开(公告)号：WO2014052372A3
公开(公告)日：2014-11-27
申请号：PCT/US2013061556
申请日：2013-09-25
申请人： NAT OILWELL DHT LP , WRIGHT CHARLES LEONARD II , SRESHTA HAROLD A , SUE JIINJEN ALBERT
发明人： WRIGHT CHARLES LEONARD II , SRESHTA HAROLD A , SUE JIINJEN ALBERT
IPC分类号： E21B10/43 , C04B35/80 , E21B10/00 , E21B10/46 , E21B10/55 , E21B29/06
CPC分类号： E21B10/46 , C04B35/117 , C04B35/488 , C04B35/803 , C04B2235/5244 , C04B2235/5276 , E21B10/006 , E21B10/43 , E21B10/55 , E21B29/06
摘要： A drill bit (10) for cutting through a downhole metal structure includes a bit body (12) having a central axis (11) and a bit face (20). The bit body is configured to rotate about the central axis in a cutting direction. In addition, the bit includes a cutting structure (15) disposed on the bit face. The cutting structure includes a plurality of circumferentially spaced blades (16) and a plurality of primary cutter elements (40) mounted to each blade. Each primary cutter element has a forward- facing primary cutting face (44). Each primary cutter element is made of a whisker ceramic composite.
摘要翻译：用于切割井下金属结构的钻头（10）包括具有中心轴线（11）和钻头面（20）的钻头体（12）。钻头体被构造成围绕切割方向的中心轴线旋转。此外，钻头包括设置在钻头面上的切割结构（15）。切割结构包括多个周向间隔开的叶片（16）和安装到每个叶片的多个主切割器元件（40）。每个主切割元件具有向前的主切割面（44）。每个主切割元件由晶须陶瓷复合材料制成。

7. 发明申请

WO2011162999A3 CUTTING ELEMENTS FOR EARTH-BORING TOOLS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND METHODS OF FORMING CUTTING ELEMENTS FOR EARTH-BORING TOOLS 审中-公开
标题翻译：用于接地工具的切割元件，包括这种切割元件的接地工具以及形成用于地球工具的切割元件的方法
公开(公告)号：WO2011162999A3
公开(公告)日：2012-01-26
申请号：PCT/US2011040166
申请日：2011-06-13
申请人： BAKER HUGHES INC , LYONS NICHOLAS J
发明人： LYONS NICHOLAS J
IPC分类号： E21B10/55 , E21B10/42 , E21B10/62
CPC分类号： B24D18/0072 , B24D3/007 , B24D18/0009 , E21B10/00 , E21B10/5735
摘要： Cutting elements for use with earth-boring tools include a cutting table having a base surface and a substrate having a support surface. An intermediate structure and an adhesion layer extend between the base surface of the cutting table and the support surface of the substrate. Earth-boring tools include such cutting elements. Methods for fabricating cutting elements for use with earth-boring tools include forming an intermediate structure on and extending from a support surface of a substrate and adhering a cutting table comprising a superabrasive material to the support surface of the substrate.
摘要翻译：用于钻孔工具的切割元件包括具有基面的切割台和具有支撑表面的基底。中间结构和粘合层在切割台的基面和基底的支撑表面之间延伸。钻孔工具包括这样的切割元件。用于制造用于钻孔工具的切割元件的方法包括在基底的支撑表面上形成中间结构并从基底的支撑表面延伸，并将包含超级磨料的切割台粘附到基底的支撑表面。

8. 发明申请

WO2010083224A1 ROTARY DRILL BITS WITH OPTIMIZED FLUID FLOW CHARACTERISTICS 审中-公开
标题翻译：具有优化流体流动特性的旋转钻头
公开(公告)号：WO2010083224A1
公开(公告)日：2010-07-22
申请号：PCT/US2010/020909
申请日：2010-01-13
申请人： HALLIBURTON ENERGY SERVICES, INC. , LIND, William H.
发明人： LIND, William H.
IPC分类号： E21B10/42 , E21B10/60 , E21B10/43 , E21B10/55
CPC分类号： E21B10/42 , E21B10/43 , E21B10/55 , E21B10/602
摘要： According to one embodiment, a rotary drill bit comprises a bit body with a bit rotational axis extending through the bit body; blades disposed outwardly from exterior portions of the bit body; and cutting elements disposed outwardly from exterior portions of each blade. At least one blade has a substantially arched configuration. Each blade comprises a leading surface and a trailing surface, where the leading surface is disposed on the side of the blade toward the direction of rotation of the rotary drill bit, and the trailing surface is disposed on the side of the blade opposite to the direction of rotation of the rotary drill bit. The rotary drill bit also comprises junk slots. Each junk slot is disposed between an adjacent leading surface and an adjacent trailing surface of associated blades.
摘要翻译：根据一个实施例，一种旋转钻头包括钻头本体，其具有延伸穿过钻头体的钻头旋转轴线; 从钻头体的外部部分向外设置的刀片; 以及从每个叶片的外部部分向外设置的切割元件。至少一个叶片具有基本上拱形的构造。每个叶片包括前表面和后表面，其中前表面设置在叶片的侧面上朝向旋转钻头的旋转方向，并且后表面设置在叶片的与方向相反的一侧的旋转钻头的旋转。旋转钻头还包括垃圾槽。每个垃圾槽设置在相邻前导表面和相关联的刀片的相邻后表面之间。

9. 发明申请

WO2008112262A1 METHOD OF FORMING POCKETS FOR RECEIVING DRILL BIT CUTTING ELEMENTS 审中-公开
标题翻译：形成用于接收钻头切割元件的口袋的方法
公开(公告)号：WO2008112262A1
公开(公告)日：2008-09-18
申请号：PCT/US2008/003302
申请日：2008-03-12
申请人： BAKER HUGHES INCORPORATED , DUGGAN, James, L. , STEVENS, John, H. , SMITH, Redd, H.
发明人： DUGGAN, James, L. , STEVENS, John, H. , SMITH, Redd, H.
IPC分类号： E21B10/573 , E21B10/55
CPC分类号： E21B10/55 , E21B10/573
摘要： Methods of forming cutting element pockets in earth-boring tools include machining at least one recess (52) to define at least one surface of a cutting element pocket using a cutter (56) oriented at an angle to a longitudinal axis of the cutting element pocket. Methods of forming earth-boring tools include forming a bit body (50) and forming at least one cutting element pocket therein using a rotating cutter oriented at an angle relative to a longitudinal axis (60) of the cutting element pocket being formed. Earth-boring tools have a bit body comprising a first surface defining a lateral sidewall (55) of a cutting element pocket, a second surface defining an end wall (66) of the cutting element pocket, and another surface defining a groove located between the first and second surfaces that extends into the body to enable a cutting element (18) to abut against an area of the lateral sidewall and end wall of the pocket.
摘要翻译：在钻孔工具中形成切割元件凹坑的方法包括使用与切割元件凹部的纵向轴线成一角度定向的切割器（56）来加工至少一个凹部（52）以限定切割元件凹部的至少一个表面。形成钻孔工具的方法包括：使用相对于所形成的切割元件凹槽的纵向轴线（60）以一定角度定向的旋转刀具形成钻头体（50）并在其中形成至少一个切割元件袋。钻孔工具具有一个主体，其包括限定切割元件凹槽的侧向侧壁（55）的第一表面，限定切割元件凹槽的端壁（66）的第二表面，以及限定凹槽第一和第二表面延伸到主体中以使得切割元件（18）能够抵靠袋的侧向侧壁和端壁的区域。

10. 发明申请

WO00040832A1 ROTATABLE CUTTING BIT ASSEMBLY WITH CUTTING INSERTS 审中-公开
标题翻译：可切割刀具组合切割刀片
公开(公告)号：WO00040832A1
公开(公告)日：2000-07-13
申请号：PCT/US1999/029196
申请日：1999-12-09
IPC分类号： E21B10/54 , E21B10/55 , E21B10/56 , E21B10/567
CPC分类号： E21B10/55 , E21B10/5673
摘要： A rotatable cutting bit for penetrating an earth formation wherein the rotatable cutting bit (590) includes an elongate bit body (592) having a forward end (594) and a rearward end (596). The bit body (592) further defines a peripheral surface. The bit body (592) has a first cutting insert (640) affixed thereto at the axially forward end thereof. The first cutting insert has a first leading cutting edge (662) and a first side clearance cutting edge (664). The first cutting insert (640) is attached to the bit body (592) so that the first side clearance cutting edge (664) radially extends past the peripheral surface of the bit body (592) so as to engage the earth formation.
摘要翻译：一种用于穿透地层的可旋转切割钻头，其中可旋转切割钻头（590）包括具有前端（594）和后端（596）的细长钻头体（592）。钻头体（592）还限定外围表面。钻头体（592）在其轴向前端具有固定在其上的第一切削刀片（640）。第一切削刀片具有第一前刀刃（662）和第一侧间隙切削刃（664）。第一切削刀片（640）附接到钻头体（592），使得第一侧间隙切削刃（664）径向延伸超过钻头体（592）的外周表面以接合地层。

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