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公开(公告)号：US20170122036A1
公开(公告)日：2017-05-04
申请号：US15409301
申请日：2017-01-18
发明人： Ajay V. Kulkarni
摘要： A hybrid-type earth boring drill bit is described having fixed cutting blades and rolling cones with cutting elements, wherein the rolling cones are associated with a spindle assembly that may be optionally divorced from the head pin assembly, and which includes bearing members that further include a plurality of polycrystalline diamond elements.
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2.发明授权公开(公告)号：US09562398B2
公开(公告)日：2017-02-07
申请号：US13924239
申请日：2013-06-21
发明人： Liang Zhang , Shu Li , Jialin Tian , Defa Zeng
CPC分类号： E21B10/46 , E21B10/00 , E21B10/50 , E21B10/5676 , E21B2010/545 , E21B2010/563
摘要： A modular cutting-teeth bit having controllable specific pressure for drilling includes: a module (1), a modular unit (2), a bit body (3), conventional cutting teeth (4) and a nozzle (5). According to mechanical performance of the rocks in the strata drilled and requirements of drilling well, a combination of shapes, sizes and numbers of the module and the modular unit is optimized; effective abrasion edge length of the cutting unit on a certain portion of the bit is controlled; and a constant specific pressure of the cutting unit of the bit during the drilling process is maintained.
摘要翻译： 具有可控钻孔特定压力的模块化切齿钻头包括：模块（1），模块单元（2），钻头体（3），常规切割齿（4）和喷嘴（5）。 根据钻井岩石的机械性能和钻井要求，优化了模块和模块单元的形状，尺寸和数量的组合; 切削单元在钻头的某一部分上的有效磨边长度被控制; 并且保持在钻孔过程中钻头的切割单元的恒定的比压。
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3.发明授权Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit 有权用于旋转锥形钻头的腿的前导过渡表面上的耐磨板公开(公告)号：US09488007B2
公开(公告)日：2016-11-08
申请号：US14193970
申请日：2014-02-28
摘要： A rotary cone drill bit includes: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a leading transitional surface. A bottom surface of a hard material plate is attached to a substantially conforming surface of the leg in a position where the hard material plate is disposed on a floor surface formed in or by the leading transitional surface of the leg.
摘要翻译： 旋转锥形钻头包括：主体，从主体悬垂的腿部，从腿部延伸的轴承轴和安装到轴承轴的锥体。 腿包括一个领先的过渡面。 硬质材料板的底表面附接到腿的基本上一致的表面，其中硬质材料板设置在形成于腿的前导过渡表面中的地板表面上。
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4.发明授权Polycrystalline compact tables for cutting elements and methods of fabrication 有权用于切割元件的多晶紧凑型表和制造方法公开(公告)号：US09428967B2
公开(公告)日：2016-08-30
申请号：US13794364
申请日：2013-03-11
IPC分类号： E21B10/56 , E21B10/573 , E21B10/567
CPC分类号： E21B10/56 , B24D18/0009 , E21B10/50 , E21B10/54 , E21B10/5676 , E21B10/5735 , E21B2010/563
摘要： Polycrystalline compact tables for cutting elements include regions of grains of super hard material. One region of grains (“first grains”) and another region of grains (“second grains”) have different properties, such as different average grain sizes, different super hard material volume densities, or both. The region of first grains and the region of second grains adjoin one another at grain interfaces that may include a curved portion in a vertical cross-section of the table. In some embodiments, discrete regions of the first grains may be vertically disposed between discrete regions of the second grains. As such, the tables have ordered grain regions of different properties that may inhibit delamination and crack propagation through the table when used in conjunction with a cutting element. Methods of forming the tables include forming the regions and subjecting the grains to a high-pressure, high-temperature process to sinter the grains.
摘要翻译： 用于切割元件的多晶压实台包括超硬材料颗粒的区域。 颗粒的一个区域（“第一颗粒”）和另一个颗粒区域（“第二颗粒”）具有不同的性质，例如不同的平均颗粒尺寸，不同的超硬材料体积密度或两者。 第一颗粒的区域和第二颗粒的区域在颗粒界面处彼此相邻，其可以包括在工作台的垂直横截面中的弯曲部分。 在一些实施例中，第一晶粒的离散区域可以垂直地设置在第二晶粒的离散区域之间。 因此，这些表格已经排列了不同性质的颗粒区域，当与切割元件结合使用时，这些颗粒区域可能会抑制表中的分层和裂纹扩展。 形成台面的方法包括形成区域并使晶粒经受高压高温处理以烧结晶粒。
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5.发明授权Hardfacing compositions, methods of applying the hardfacing compositions, and tools using such hardfacing compositions 有权表面硬化组合物，施用表面硬化组合物的方法以及使用这种表面硬化组合物的工具公开(公告)号：US09353578B2
公开(公告)日：2016-05-31
申请号：US12728932
申请日：2010-03-22
CPC分类号： E21B10/50 , B22F2005/001 , C22C29/005 , C22C29/08
摘要： A hardfacing composition comprising an iron-based binder alloy; and a carbide phase comprising a sintered carbide and a cast tungsten carbide, wherein the cast carbide is present in a quantity of at least 22% by weight, based on the total weight of the carbide phase, and the cast carbide comprises particles having sizes in the range of from 30 to 60 mesh. Also provided is a hardfacing composition comprising an iron-based binder alloy; and a carbide phase comprising a super dense sintered carbide and one or more additional carbide materials, wherein the super dense sintered carbide is present in a quantity of at least 10 percent by weight (% w), based on the total weight of the carbide phase, and comprises particles having sizes in the range of from 16 to 40 mesh. Included are methods of manufacturing such hardfacing compositions and downhole tools having such improved hardfacing compositions applied thereon.
摘要翻译： 包含铁基粘合剂合金的表面硬化组合物; 以及包含烧结碳化物和铸造碳化钨的碳化物相，其中所述铸碳化物以基于所述碳化物相的总重量为至少22重量％的量存在，并且所述铸造碳化物包括具有 范围从30到60目。 还提供了包含铁基粘合剂合金的硬化组合物; 和包含超密度烧结碳化物和一种或多种另外的碳化物材料的碳化物相，其中所述超致密烧结碳化物以基于碳化物相的总重量的至少10重量％（％w）的量存在 ，并且包含尺寸在16至40目范围内的颗粒。 包括制造这种表面硬化组合物的方法以及应用于其上的具有这种改进的耐硬化组合物的井下工具。
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公开(公告)号：US09291000B2
公开(公告)日：2016-03-22
申请号：US13677105
申请日：2012-11-14
发明人： Youhe Zhang , Yuelin Shen , Yuri Burhan , Kjell Haugvaldstad
IPC分类号： E21B10/627 , E21B10/50 , E21B10/08 , E21B10/62 , E21B10/633 , E21B10/55
CPC分类号： E21B10/50 , E21B10/08 , E21B10/55 , E21B10/62 , E21B10/627 , E21B10/633
摘要： A cutting structure may include an outer support element; and an inner rotatable cutting element comprising a cutting surface at its upper end; wherein the inner rotatable cutting element comprises at least one line contact along a circumferential side surface thereof and/or at least one point contact at a bottom face thereof.
摘要翻译： 切割结构可以包括外部支撑元件; 以及内部可旋转切割元件，其在其上端包括切割表面; 其中所述内部可旋转切割元件包括沿着其圆周侧表面的至少一个线接触件和/或其底面处的至少一个接点。
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7.发明申请COMPOSITE DRILL BIT PROVIDED WITH DISC-TYPE CUTTING STRUCTURE ON CUTTER BLADE 审中-公开在切割刀片上提供碟形切割结构的复合钻头公开(公告)号：US20150368977A1
公开(公告)日：2015-12-24
申请号：US14766509
申请日：2014-02-06
申请人： Liyuan YANG
发明人： Liyuan YANG
CPC分类号： E21B10/14 , E21B10/10 , E21B10/42 , E21B10/43 , E21B10/46 , E21B10/50 , E21B10/52 , E21B10/54 , E21B10/55 , E21B2010/425
摘要： The present invention is related to drilling equipment technologies in petroleum and natural gas, mining engineering, infrastructure construction, geological and hydrological projects. More particularly, it discloses a composite drill bit with scraping-wheel cutting unit being disposed on fixed-blade. The drill bit comprises a bit body, fixed-blades and scraping-wheels. The fixed-blade with cutters fixed thereon is configured on the bit body. The angular deflection of the scraping-wheel is in the range of 20°≦|α|≦90°. At least one scraping-wheel cutting unit, which comprises the scraping-wheel shaft and the scraping-wheel with cutters disposed thereon, is disposed on the fixed-blade forming a rotary connection. This invention saves the space of cutting structure so as to fulfill the potential of alternating cutting and cross-cutting for cutters of the bit, and consequently, increases the overall bit performance.
摘要翻译： 本发明涉及石油天然气，矿山工程，基础设施建设，地质和水文工程等钻井设备技术。 更具体地，公开了一种具有刮削轮切割单元的复合钻头，其设置在固定刀片上。 钻头包括钻头体，固定刀片和刮削轮。 固定刀片的固定刀片配置在钻头体上。 刮削轮的角度偏移在20°＆lt; llE; |α|＆nlE; 90°的范围内。 至少一个刮削轮切割单元，其包括刮刀轮轴和其上设置有切割器的刮刀，设置在形成旋转连接的固定刀片上。 本发明节省了切割结构的空间，从而实现了刀头切割器交替切割和交叉切割的可能性，从而提高了整体钻头的性能。
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公开(公告)号：US09103168B2
公开(公告)日：2015-08-11
申请号：US13740194
申请日：2013-01-12
申请人： Ying Xin Yang , Lian Chen , Min Lin , Zhu Pei , Hai Tao Ren
发明人： Ying Xin Yang , Lian Chen , Min Lin , Zhu Pei , Hai Tao Ren
摘要： A scraping-wheel drill bit with a bit body configured at its upper extend for connection into a drillstring, comprising: a bit body (1) with at least one bit leg (3), and at least one scraping-wheel (2) set with a cutter-row (4). The scraping-wheel (2) is mounted for rotation on the corresponding bit leg (3) with a large angular deflection α which lies in the range of 20°≦|α|≦90°. The cutters on the scraping-wheel break rocks by means of successive scraping, forming a spiral-like tracks on the bottomhole, thus achieving high rock-breaking efficiency, even wear, high cooling performance, and a longer service life for the cutters, bearings and the drill bit.
摘要翻译： 一种刮刀钻头，其具有在其上延伸部分上配置用于连接到钻柱中的钻头体，包括：具有至少一个钻头（3）和至少一个刮削轮（2）的钻头体（1） （4）。 刮刀轮（2）以大的角度偏转α安装在对应的位腿（3）上以旋转，该角度偏差α位于20°＆lt; 1 | | | | n1E; 90°的范围内。 刮刀上的切割机通过连续刮削破碎岩石，在井底形成螺旋状轨道，从而实现高破碎效率，均匀磨损，高冷却性能，以及刀具，轴承使用寿命更长 和钻头。
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公开(公告)号：US08733475B2
公开(公告)日：2014-05-27
申请号：US13016332
申请日：2011-01-28
申请人： Thang Vo , Tom Scott Roberts , Craig Ivie , Douglas Caraway
发明人： Thang Vo , Tom Scott Roberts , Craig Ivie , Douglas Caraway
IPC分类号： E21B10/08
摘要： Disclosed is a rolling cone drill bit with inner row cutting teeth having portions shielded with an erosion-resistant material that differs in material properties from the tooth's core portion that is more impact resistant. The tooth includes shielding on at least a portion of the upstream end and along portions of the flanking surfaces. It includes shield-free portions on the flanks between the root and the tooth crest. Most of the tooth's perimeter is made of the core material and is free of shielding. Gage row teeth may be angled and form a channel to direct drilling fluid from the gage region of the borehole to locations where the inner row teeth are generating most cuttings. Nozzles are provided with non-uniform orientations.
摘要翻译： 公开了一种具有内排切割齿的滚动圆锥钻头，其具有用抗侵蚀材料屏蔽的部分，其材料特性与具有更耐冲击性的齿的芯部分不同。 所述牙齿包括在所述上游端的至少一部分和所述侧面的部分上的屏蔽。 它包括在根部和齿顶之间的侧面上的无屏蔽部分。 牙齿的大部分周边由芯材制成，不受屏蔽。 计量排齿可以成角度并且形成通道，以将钻井液从钻孔的测量区域引导到内排齿产生大多数切屑的位置。 喷嘴具有不均匀的方向。
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公开(公告)号：US08672060B2
公开(公告)日：2014-03-18
申请号：US12844526
申请日：2010-07-27
摘要： A drill bit includes a bit body comprising at its upper end a connection adapted to connect to a drill string and at its lower end a plurality of journals extending downwardly and radially outward from a longitudinal axis of the bit. A plurality of roller cones are rotatably mounted on the plurality of journals and at least three rows of cutting elements are disposed on each of the plurality of roller cones. The outermost row of the at least three rows of cutting elements has an extension height to diameter ratio greater than a mid row, and the mid row has an extension height to diameter ratio greater than an innermost row.
摘要翻译： 钻头包括钻头主体，其上端包括适于连接到钻柱的连接件，并且在其下端包括从钻头的纵向轴线向下且径向向外延伸的多个轴颈。 多个辊筒可旋转地安装在多个轴颈上，并且至少三排切割元件设置在多个辊筒的每一个上。 所述至少三排切割元件的最外排具有大于中间行的延伸高度与直径之比，并且所述中间行的延伸高度与直径之比大于最内排。
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