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1. 发明申请

WO2020097153A3 METHOD FOR MANUFACTURING A POLYCRYSTALLINE SUPERHARD CUTTER UTILIZING LEACHING PASSAGES 审中-公开
公开(公告)号：WO2020097153A3
公开(公告)日：2020-05-14
申请号：PCT/US2019/059987
申请日：2019-11-06
申请人： VAREL INTERNATIONAL IND., LLC
发明人： BELLIN, Federico
IPC分类号： B22F5/00 , C25F3/02 , E21B10/56 , B22F3/24
摘要： A method for manufacturing a cutter includes: boring a passage into a polycrystalline superhard cutting head, the passage extending from a front face of the cutting head toward a side thereof; and introducing acid into the passage, thereby removing at least a portion of a metal from the cutting head.

2. 发明申请

WO2019134930A1 DRILL BIT WITH PCD BUTTON INSERTS 审中-公开
公开(公告)号：WO2019134930A1
公开(公告)日：2019-07-11
申请号：PCT/EP2019/050081
申请日：2019-01-03
申请人： ELEMENT SIX (UK) LIMITED
发明人： LEEMING, Matthew John Ian
IPC分类号： E21B10/36 , E21B10/46 , E21B10/56
CPC分类号： E21B10/36 , E21B10/46 , E21B10/56
摘要： This disclosure relates to a percussive drill bit comprising PCD studs and a drill bit body protector to limit erosion of the drill bit body near the PCD studs. The drill bit body protector may take various forms such as a continuous hard facing layer, a plurality of cemented carbide studs, a wear resistant plate, a plurality of individual wear resistant washers, and a carbide support post attached to at least some of the PCD studs.

3. 发明申请

WO2018226380A1 BEARING ASSEMBLIES, RELATED BEARING APPARATUSES, AND RELATED METHODS 审中-公开
公开(公告)号：WO2018226380A1
公开(公告)日：2018-12-13
申请号：PCT/US2018/033190
申请日：2018-05-17
申请人： US SYNTHETIC CORPORATION
发明人： KOLSTE, Tyler , PETERSON, S. Barrett , GONZALEZ, Jair J. , PETERSON, Trond
IPC分类号： F16C33/04 , E21B10/22 , E21B10/46 , E21B10/56 , E21B10/567 , F16C17/00
摘要： Bearing assemblies that include a plurality of polycrystalline diamond ("PCD") bearing elements, bearing apparatuses including such bearing assemblies, and methods of operating and fabricating such bearing assemblies and apparatuses are disclosed. In an embodiment, the plurality of PCD bearing elements of one or more of the bearing assemblies disclosed herein include at least one first PCD bearing element. At least a portion of the first PCD bearing element exhibits a coercivity of about 125 Oersteds or more and a specific magnetic saturation of about 14 Gauss·cm3/gram or less. The first PCD bearing element includes a bearing surface with at least one groove formed therein. In an embodiment, the plurality of PCD bearing elements also include at least one second PCD bearing element. The second PCD bearing element exhibits a coercivity that is less than and a specific magnetic saturation that is greater than the first PCD bearing element.

4. 发明申请

WO2018144762A1 DRILL BIT INSERTS AND DRILL BITS INCLUDING SAME 审中-公开
公开(公告)号：WO2018144762A1
公开(公告)日：2018-08-09
申请号：PCT/US2018/016495
申请日：2018-02-01
申请人： NATIONAL OILWELL DHT, L.P.
发明人： RAHMANI, Reza , OMIDVAR, Navid , AGHDAM, Afshin Babaie , GRAHAM, Ryan Basson
IPC分类号： E21B10/56 , E21B10/43 , E21B10/50 , E21B10/52 , E21B10/58 , E21B10/62
摘要： An insert for a drill bit includes a base portion having a central axis and a formation engaging portion. The formation engaging portion includes an elongate peaked ridge, a first flanking surface extending from the peaked ridge, and a second flanking surface extending from the peaked ridge. The first flanking surface is defined by a first curve rotated about a first axis and the second flanking surface is defined by a second curve rotated about a second axis. The first axis and the second axis are disposed in a reference plane that bisects the base portion and contains the central axis of the base portion. The first axis is disposed at a first radius measured in the reference plane and the second axis is disposed at a second radius measured in the reference plane. The first radius is different from the second radius.

5. 发明申请

WO2017053475A1 DOWNHOLE DRILL BIT WITH BALANCED CUTTING ELEMENTS AND METHOD FOR MAKING AND USING SAME 审中-公开
标题翻译：具有平衡切割元件的钻孔钻头及其制造和使用方法
公开(公告)号：WO2017053475A1
公开(公告)日：2017-03-30
申请号：PCT/US2016/052951
申请日：2016-09-21
申请人： NATIONAL OILWELL DHT, L.P.
发明人： RAHMANI, Reza , CASTILLO, Alejandro
IPC分类号： E21B10/43 , E21B10/56
CPC分类号： E21B10/5673
摘要： A drill bit with individually-balanced cutting elements. The working surface of the cutters includes a balancing feature, such as an elongate ridge, and a balancing line that extends along the length of the feature, and through the center of the working surface. The cutters are positioned in the bit so that the working surface of each cutter removes formation material in an area of cut, and so that the cutter's balancing line passes through a centroid of its area of cut. A method for making a bit with individually-balanced cutters includes positioning cutters in the bit so that a cutter's balancing line passes through a selected centroid of the cutter's area of cut.
摘要翻译：具有独立平衡切割元件的钻头。切割器的工作表面包括平衡特征，例如细长脊，以及沿着特征的长度，并穿过工作表面的中心延伸的平衡线。切割器位于钻头中，使得每个切割器的工作表面去除切割区域中的成形材料，并且使得切割器的平衡线穿过切割区域的重心。一种使用单独平衡的切割器制造钻头的方法包括将钻头中的定位刀具定位，使得切割器的平衡线穿过切割器的切割区域的选定的质心。

6. 发明申请

WO2017044753A1 METHODS AND SYSTEMS FOR REMOVING INTERSTITIAL MATERIAL FROM SUPERABRASIVE MATERIALS OF CUTTING ELEMENTS USING ENERGY BEAMS 审中-公开
标题翻译：使用能源切割元素的超级材料去除相互间的材料的方法和系统
公开(公告)号：WO2017044753A1
公开(公告)日：2017-03-16
申请号：PCT/US2016/050955
申请日：2016-09-09
申请人： BAKER HUGHES INCORPORATED
发明人： DIGIOVANNI, Anthony, A. , DIFOGGIO, Rocco
IPC分类号： E21B10/54 , E21B10/42 , E21B10/56
CPC分类号： B23K26/38 , B23K26/0622 , B23K26/0624 , B23K26/0643 , B23K26/0648 , B23K26/144 , B23K26/53 , B23K2201/20 , B24B53/00 , B24D18/00 , B24D99/005 , E21B10/567
摘要： A method of forming a cutting element for an earth-boring tool may include directing at least one energy beam at a surface of a volume of polycrystalline superabrasive material including interstitial material disposed in regions between inter-bonded grains of polycrystalline superabrasive material. The method includes ablating the interstitial material with the at least one energy beam such that at least a portion of the interstitial material is removed from a first region of the volume of polycrystalline superabrasive material without any substantial degradation of the inter-bonded grains of superabrasive material or of bonds thereof in the first region.
摘要翻译：形成用于钻孔工具的切割元件的方法可以包括将多晶超硬材料体积的表面上的至少一个能量束引导，所述多晶超研磨材料包括布置在多晶超研磨材料的互相结合的晶粒之间的区域中的间隙材料。该方法包括用至少一个能量束来消除间隙材料，使得至少一部分间质材料从多晶超研磨材料的体积的第一区域移除，而超级磨料材料的互相结合的颗粒没有明显的降解或其第一区域中的键。

7. 发明申请

WO2014161816A3 SUPERHARD CONSTRUCTIONS & METHODS OF MAKING SAME 审中-公开
标题翻译：超级建筑及其制作方法
公开(公告)号：WO2014161816A3
公开(公告)日：2015-03-19
申请号：PCT/EP2014056458
申请日：2014-03-31
申请人： ELEMENT SIX ABRASIVES SA
发明人： KANYANTA VALENTINE , KASONDE MAWEJA , OZBAYRAKTAR MEHMET SERDAR
IPC分类号： E21B10/56
CPC分类号： B24D18/0009 , B22F1/007 , B22F5/00 , B22F2005/001 , B22F2007/066 , C22C26/00 , E21B10/567 , E21B10/5676 , E21B10/5735
摘要： A superhard polycrystalline construction comprises a body of polycrystalline superhard material comprising a first superhard phase having a first average grain size; and a second superhard phase having a second average grain size. The second superhard phase is located in one or more channels or apertures in the first superhard phase, the first superhard phase forming a skeleton in the body of superhard material. The second superhard phase is bonded to the first superhard phase by a non-superhard phase and the first superhard phase differs from the second superhard phase in average grain size and/or composition. There is also disclosed a method of making such a superhard polycrystalline construction.
摘要翻译：超硬多晶结构包括多晶超硬材料体，其包括具有第一平均晶粒尺寸的第一超硬相; 和具有第二平均粒度的第二超硬相。第二超硬相位于第一超硬相中的一个或多个通道或孔中，第一超硬相在超硬材料的主体中形成骨架。第二超硬相通过非超硬相结合到第一超硬相，并且第一超硬相与平均晶粒尺寸和/或组成的第二超硬相不同。还公开了制造这种超硬多晶结构的方法。

8. 发明申请

WO2015030791A1 IMPROVED CUTTERS FOR DRILL BITS 审中-公开
标题翻译：改进的钻头切割机
公开(公告)号：WO2015030791A1
公开(公告)日：2015-03-05
申请号：PCT/US2013/057511
申请日：2013-08-30
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： CHEN, Shilin
IPC分类号： E21B10/43 , E21B10/56 , E21B10/567
CPC分类号： E21B10/5735 , E21B7/00 , E21B10/55 , E21B10/567 , E21B10/5673
摘要： Disclosed are improved cutters for fixed-cutter rotating drill bits. One cutter includes a substrate defining a slot therein and being configured to be coupled to a middle portion of a blade of the drill bit, and a cutting element secured within the slot and having at least a portion of the cutting element extending out of the slot, the cutting element further having a first face and a second face, wherein portions of the first and second faces are supported by the substrate within the slot.
摘要翻译：公开了用于固定刀旋转钻头的改进的切割器。一个切割器包括在其中限定狭槽的基板，并且被配置为联接到钻头的叶片的中间部分，以及固定在槽内的切割元件，并且具有延伸出槽的至少一部分切割元件所述切割元件还具有第一面和第二面，其中所述第一面和所述第二面的部分由所述基底在所述槽内支撑。

9. 发明申请

WO2014081997A3 APPARATUS AND METHOD FOR RETAINING INSERTS OF A ROLLING CONE DRILL BIT 审中-公开
公开(公告)号：WO2014081997A3
公开(公告)日：2014-05-30
申请号：PCT/US2013/071383
申请日：2013-11-22
申请人： NATIONAL OILWELL DHT, L.P. , VO, Thang , SUKENDRO, Tjandra
发明人： VO, Thang , SUKENDRO, Tjandra
IPC分类号： E21B10/52 , E21B10/56
摘要： An insert (100) for a rolling cone drill bit (10) includes a base portion (110) having a central axis (115). The base portion is configured to be seated in a mating socket in a cone cutter (50) of the rolling cone drill bit. In addition, the insert includes a cutting portion (150) extending from the base portion. The base portion has a radially outer surface including a non-cylindrical axial retention feature (111) configured to prevent the insert from moving axially out of the mating socket or a non-cylindrical torque holding feature (112) configured to prevent the insert from rotating relative to the cone cutter.

10. 发明申请

WO2013151956A1 CUTTING STRUCTURES, TOOLS FOR USE IN SUBTERRANEAN BOREHOLES INCLUDING CUTTING STRUCTURES AND RELATED METHODS 审中-公开
标题翻译：切割结构，包括切割结构在内的下层钻孔中使用的工具及相关方法
公开(公告)号：WO2013151956A1
公开(公告)日：2013-10-10
申请号：PCT/US2013/034880
申请日：2013-04-02
申请人： BAKER HUGHES INCORPORATED
发明人： LYONS, Nicholas, J.
IPC分类号： E21B10/43 , E21B10/55 , E21B10/56
CPC分类号： E21B10/26 , E21B10/32
摘要： Cutting structures for use with downhole tools in subterranean boreholes include a blade, a plurality of primary cutting elements coupled to the blade, and at least one secondary element rotationally leading the plurality of primary cutting elements in a direction of intended rotation of the cutting structure. The at least one secondary element is coupled to the blade proximate a leading surface of the blade and comprises at least one of a rubbing surface and a cutting surface. An exposure of at least one primary cutting element of the plurality of primary cutting elements is greater than an exposure of the at least one secondary element. Downhole tools such as reamers include cutting structures. Methods of enlarging a subterranean borehole include reaming a borehole with cutting structures.
摘要翻译：用于地下钻孔中的井下工具的切割结构包括叶片，联接到叶片的多个主切割元件以及至少一个辅助元件，其沿切割结构的预期旋转方向旋转地引导多个主切割元件。所述至少一个次要元件在所述刀片的前表面附近联接到所述刀片，并且包括摩擦表面和切割表面中的至少一个。多个主切割元件中的至少一个主要切割元件的曝光大于所述至少一个次要元件的曝光。诸如铰刀的井下工具包括切割结构。扩大地下井眼的方法包括用切割结构对钻孔进行铰孔。

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