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    Abrasive wear-resistant materials and earth-boring tools comprising such materials
    12.
    发明授权
    Abrasive wear-resistant materials and earth-boring tools comprising such materials 有权
    磨料耐磨材料和包含这种材料的钻孔工具

    公开(公告)号：US09506297B2

    公开(公告)日：2016-11-29

    申请号：US14296129

    申请日：2014-06-04

    申请人： Baker Hughes Incorporated

    发明人： James L. Overstreet

    IPC分类号： C22C29/08 ,  E21B10/567 ,  B22F7/06 ,  C22C32/00 ,  E21B10/46 ,  E21B10/573 ,  B24D3/06 ,  B22F5/00

    CPC分类号： E21B10/567 ,  B22F7/062 ,  B22F2005/001 ,  B24D3/06 ,  C22C29/08 ,  C22C32/0052 ,  E21B10/46 ,  E21B10/573

    摘要： An abrasive wear-resistant material includes a matrix and sintered and cast tungsten carbide pellets. A device for use in drilling subterranean formations includes a first structure secured to a second structure with bonding material. An abrasive wear-resistant material covers the bonding material. The first structure may include a drill bit body and the second structure may include a cutting element. A method for applying an abrasive wear-resistant material to a drill bit includes providing a bit, mixing sintered and cast tungsten carbide pellets in a matrix material to provide a pre-application material, heating the pre-application material to melt the matrix material, applying the pre-application material to the bit, and solidifying the material. A method for securing a cutting element to a bit body includes providing an abrasive wear-resistant material to a surface of a drill bit that covers a brazing alloy disposed between the cutting element and the bit body.

    摘要翻译： 磨料耐磨材料包括基体和烧结和铸造碳化钨球粒。 用于钻探地下地层的装置包括用接合材料固定到第二结构的第一结构。 磨料耐磨材料覆盖接合材料。 第一结构可以包括钻头体，并且第二结构可以包括切割元件。 将磨料耐磨材料施加到钻头的方法包括提供钻头，将基体材料中的烧结和铸造碳化钨球粒混合以提供预施加材料，加热预施加材料以熔化基体材料， 将预施加材料施加到钻头上，并固化材料。 用于将切割元件固定到钻头体的方法包括向钻头的表面提供磨料耐磨材料，所述钻头覆盖设置在切割元件和钻头体之间的钎焊合金。

    DOWNHOLE TOOLS HAVING HYDROPHOBIC COATINGS, AND METHODS OF MANUFACTURING SUCH TOOLS
    13.
    发明申请
    DOWNHOLE TOOLS HAVING HYDROPHOBIC COATINGS, AND METHODS OF MANUFACTURING SUCH TOOLS 审中-公开
    具有疏水性涂层的下水工具及其制造方法

    公开(公告)号：US20160090824A1

    公开(公告)日：2016-03-31

    申请号：US14496124

    申请日：2014-09-25

    申请人： Baker Hughes Incorporated

    发明人： James L. Overstreet ,  Vivekanand Sista ,  Bo Yu

    IPC分类号： E21B41/02 ,  E21B17/10 ,  C23C4/12 ,  E21B3/00 ,  C23C26/02 ,  E21B10/46 ,  E21B34/06

    CPC分类号： E21B41/02 ,  B23K5/12 ,  B23K5/18 ,  B23K10/027 ,  B23K26/34 ,  B23K2101/20 ,  B23K2103/26 ,  C23C4/10 ,  C23C4/124 ,  C23C4/127 ,  C23C10/28 ,  C23C26/02 ,  E21B3/00 ,  E21B10/46 ,  E21B17/1078 ,  E21B17/1085 ,  E21B34/06

    摘要： A downhole tool for use in wellbores comprises a layer of hydrophobic material over a body, wherein the layer of hydrophobic material comprises a transition metal boride having a higher hydrophobicity than the body. The downhole tool may comprise a body having a composition and the layer of hydrophobic material comprising a discontinuous phase of the transition metal binder dispersed within a first continuous phase comprising a metal binder. The layer of material may be chemically bonded to the body. An interface between the body and the layer of material may comprise the transition metal boride dispersed within a second continuous phase comprising the metal binder and the composition of the body. Methods of forming downhole tools include forming such a layer of material at a surface of a body of a downhole tool.

    摘要翻译： 用于井筒的井下工具包括在主体上的疏水材料层，其中疏水材料层包含具有比主体更高的疏水性的过渡金属硼化物。 井下工具可以包括具有组成的主体，疏水材料层包括分散在包含金属粘合剂的第一连续相中的过渡金属粘合剂的不连续相。 材料层可以化学地结合到身体上。 主体和材料层之间的界面可以包括分散在包括金属粘合剂和主体组成的第二连续相内的过渡金属硼化物。 形成井下工具的方法包括在井下工具的主体的表面上形成这样的材料层。

    COMPONENTS AND MOTORS FOR DOWNHOLE TOOLS AND METHODS OF APPLYING HARDFACING TO SURFACES THEREOF
    14.
    发明申请
    COMPONENTS AND MOTORS FOR DOWNHOLE TOOLS AND METHODS OF APPLYING HARDFACING TO SURFACES THEREOF 审中-公开
    用于井下工具的组件和电机以及将其施加于表面上的方法

    公开(公告)号：US20150259983A1

    公开(公告)日：2015-09-17

    申请号：US14724564

    申请日：2015-05-28

    申请人： Baker Hughes Incorporated

    发明人： Travis E. Puzz ,  James L. Overstreet ,  Jimmy W. Eason

    IPC分类号： E21B4/02 ,  F04C13/00

    CPC分类号： E21B4/02 ,  F03C2/08 ,  F04C2/1075 ,  F04C13/008 ,  F04C2230/91 ,  F04C2270/16 ,  F05C2225/00 ,  F05C2251/10 ,  F05C2253/04 ,  Y10T156/10

    摘要： A component for a downhole tool includes a rotor and a hardfacing precursor. The hardfacing precursor includes a polymeric material, hard particles, and a metal. A hydraulic drilling motor includes a stator, a rotor, and a sintered hardfacing material on an outer surface of the rotor or an inner surface of the stator. Methods of applying hardfacing to surfaces include forming a paste of hard particles, metal matrix particles, a polymeric material, and a solvent. The solvent is removed from the paste to form a sheet, which is applied to a surface and heated. A component for a downhole tool includes a first hardfacing material, a second hardfacing material over the first hardfacing material and defining a plurality of pores, and a metal disposed within at least some of the pores. The metal has a melting point lower than a melting point of the second hardfacing material.

    摘要翻译： 用于井下工具的部件包括转子和表面硬化前体。 表面硬化前体包括聚合物材料，硬质颗粒和金属。 液压钻井马达在转子的外表面或定子的内表面上具有定子，转子和烧结的表面硬化材料。 向表面施加硬化面的方法包括形成硬颗粒，金属基质颗粒，聚合物材料和溶剂的糊料。 将溶剂从糊剂中除去以形成片材，将其施加到表面并加热。 用于井下工具的部件包括第一表面硬化材料，在第一表面硬化材料上方的第二表面硬化材料并且限定多个孔，以及设置在至少一些孔内的金属。 金属的熔点低于第二表面硬化材料的熔点。

    Methods of repairing cutting element pockets in earth-boring tools with depth-of-cut control features
    17.
    发明授权
    Methods of repairing cutting element pockets in earth-boring tools with depth-of-cut control features 有权

    公开(公告)号：US10221628B2

    公开(公告)日：2019-03-05

    申请号：US15051417

    申请日：2016-02-23

    申请人： Baker Hughes Incorporated

    发明人： James L. Overstreet ,  Kenneth E. Gilmore ,  Travis E. Puzz

    IPC分类号： E21B10/54 ,  E21B10/43 ,  E21B10/55 ,  B23P15/28 ,  E21B10/62

    摘要： Methods of repairing earth-boring tools may involve providing wear-resistant material over a temporary displacement member to repair a cutting element pocket in a body and a depth-of-cut control feature using the wear-resistant material. In some embodiments, the wear-resistant material may comprise a particle-matrix composite material. For example, a hardfacing material may be built up over a temporary displacement member to form or repair a cutting element pocket and provide a depth-of-cut control feature. Earth-boring tools may include a depth-of-cut control feature comprising a wear-resistant material. The depth-of-cut control feature may be configured to limit a depth-of-cut of a cutting element secured within a cutting element pocket partially defined by at least one surface of the depth-of-cut control feature. Intermediate structures formed during fabrication of earth-boring tools may include a depth-of-cut control feature extending over a temporary displacement member.

    Methods of repairing cutting element pockets in earth-boring tools with depth-of-cut control features
    19.
    发明授权
    Methods of repairing cutting element pockets in earth-boring tools with depth-of-cut control features 有权
    在钻孔工具中修剪切割元件袋的方法具有深度切割控制功能

    公开(公告)号：US09291002B2

    公开(公告)日：2016-03-22

    申请号：US14602012

    申请日：2015-01-21

    申请人： Baker Hughes Incorporated

    发明人： James L. Overstreet ,  Kenneth E. Gilmore ,  Travis E. Puzz

    IPC分类号： B23P25/00 ,  E21B10/62 ,  E21B10/43 ,  E21B10/55 ,  B23P15/28

    CPC分类号： E21B10/54 ,  B23P15/28 ,  E21B10/43 ,  E21B10/55 ,  E21B10/62 ,  Y10T29/49885 ,  Y10T29/49982

    摘要： Methods of repairing earth-boring tools may involve providing wear-resistant material over a temporary displacement member to repair a cutting element pocket in a body and a depth-of-cut control feature using the wear-resistant material. In some embodiments, the wear-resistant material may comprise a particle-matrix composite material. For example, a hardfacing material may be built up over a temporary displacement member to form or repair a cutting element pocket and provide a depth-of-cut control feature. Earth-boring tools may include a depth-of-cut control feature comprising a wear-resistant material. The depth-of-cut control feature may be configured to limit a depth-of-cut of a cutting element secured within a cutting element pocket partially defined by at least one surface of the depth-of-cut control feature. Intermediate structures formed during fabrication of earth-boring tools may include a depth-of-cut control feature extending over a temporary displacement member.

    摘要翻译： 修补钻孔工具的方法可以包括在临时移动构件上提供耐磨材料以修复主体中的切割元件凹槽，并且使用耐磨材料进行深度切割控制。 在一些实施例中，耐磨材料可以包括颗粒 - 基质复合材料。 例如，可以在临时位移构件上构建表面硬化材料以形成或修复切割元件凹部并提供切割深度控制特征。 钻孔工具可以包括包括耐磨材料的切割深度控制特征。 切割深度控制特征可以被配置为限制固定在由切削深度控制特征的至少一个表面部分限定的切割元件袋内的切割元件的切割深度。 在钻孔工具的制造期间形成的中间结构可以包括在临时位移构件上延伸的深度切割控制特征。

    METHODS OF FORMING BORIDED DOWNHOLE TOOLS, AND RELATED DOWNHOLE TOOLS
    20.
    发明申请
    METHODS OF FORMING BORIDED DOWNHOLE TOOLS, AND RELATED DOWNHOLE TOOLS 有权
    形成钻孔工具的方法和相关的卧式工具

    公开(公告)号：US20150060051A1

    公开(公告)日：2015-03-05

    申请号：US14019096

    申请日：2013-09-05

    申请人： Baker Hughes Incorporated

    发明人： Vivekanand Sista ,  James L. Overstreet ,  John H. Stevens

    IPC分类号： C25D11/02 ,  B23K11/34 ,  E21B43/00

    CPC分类号： C25D11/028 ,  C25D3/66 ,  C25D5/02 ,  C25D9/04 ,  E21B10/46 ,  E21B17/1085

    摘要： A method of forming a downhole tool comprises contacting at least one downhole structure comprising at least one metal material with a molten electrolyte comprising anhydrous sodium tetraborate. Electrical current is applied to at least a portion of the at least one downhole structure to form at least one borided downhole structure comprising at least one metal boride material. Other methods of forming a downhole tool, and a downhole tool are also described.

    摘要翻译： 形成井下工具的方法包括将包含至少一种金属材料的至少一个井下结构与包含无水四硼酸钠的熔融电解液接触。 电流被施加到至少一个井下结构的至少一部分，以形成包括至少一种金属硼化物材料的至少一个硼化井下结构。 还描述了形成井下工具和井下工具的其它方法。