公开(公告)号：US20070107942A1

公开(公告)日：2007-05-17

申请号：US11560148

申请日：2006-11-15

申请人： James Overstreet ,  David Curry ,  Jimmy Eason ,  John Stevens ,  Eric Sullivan

发明人： James Overstreet ,  David Curry ,  Jimmy Eason ,  John Stevens ,  Eric Sullivan

IPC分类号： E21B10/00

CPC分类号： E21B10/46 ,  C23C30/005

摘要： An earth-boring bit, and a method of increasing the durability of the same, which includes the step providing a pliable sheet of a hardfacing matrix material. The pliable sheet of hardfacing material has a nickel and chromium matrix combined with a first element. The first element is selected from a group consisting of spherical sintered tungsten carbide, spherical cast tungsten carbide, and metallic glass. The hardfacing matrix material sheet is placed on a preselected surface of the drill bit. The hardfacing matrix material sheet is then fusion bonded to the drill bit.

摘要翻译： 一种钻孔钻头，以及增加其耐久性的方法，其包括提供耐磨表面材料的柔韧片材的步骤。 柔性表面材料片具有与第一元素组合的镍和铬基质。 第一元素选自球形烧结碳化钨，球形铸造碳化钨和金属玻璃。 将表面硬化的基体材料片放置在钻头的预选表面上。 然后将表面硬化的基体材料片材熔合在钻头上。

公开(公告)号：US20070102202A1

公开(公告)日：2007-05-10

申请号：US11593437

申请日：2006-11-06

申请人： Heeman Choe ,  John Stevens ,  James Overstreet ,  James Westhoff ,  Jimmy Eason

发明人： Heeman Choe ,  John Stevens ,  James Overstreet ,  James Westhoff ,  Jimmy Eason

IPC分类号： E21B10/54

CPC分类号： E21B10/00 ,  B22F7/062 ,  B22F7/08 ,  B22F2005/002 ,  B22F2998/10 ,  C22C1/051 ,  C22C14/00 ,  C22C29/005 ,  C22C32/0047 ,  E21B10/567 ,  B22F3/04 ,  B22F3/162

摘要： Earth-boring rotary drill bits include bit bodies comprising a composite material including a plurality of hard phase regions or particles dispersed throughout a titanium or titanium-based alloy matrix material. The bits further include a cutting structure disposed on a face of the bit body. In some embodiments, the bit bodies may include a plurality of regions having differing material compositions. For example, the bit bodies may include a first region comprising a plurality of hard phase regions or particles dispersed throughout a titanium or titanium-based alloy matrix material, and a second region comprising a titanium or a titanium-based alloy material. Methods for forming such drill bits include at least partially sintering a plurality of hard particles and a plurality of particles comprising titanium or a titanium-based alloy material to form a bit body comprising a particle-matrix composite material. A shank may be attached directly to the bit body.

摘要翻译： 钻孔旋转钻头包括钻头体，其包括复合材料，所述复合材料包括分散在整个钛或钛基合金基体材料中的多个硬质相区域或颗粒。 钻头还包括设置在钻头体的表面上的切割结构。 在一些实施例中，钻头体可以包括具有不同材料组成的多个区域。 例如，钻头体可以包括包括分散在整个钛或钛基合金基体材料中的多个硬质相区域或颗粒的第一区域，以及包含钛或钛基合金材料的第二区域。 形成这种钻头的方法包括至少部分地烧结多个硬颗粒和多个包含钛或钛基合金材料的颗粒，以形成包含颗粒 - 基体复合材料的钻头体。 柄可以直接附接到钻头体上。

公开(公告)号：US20070102200A1

公开(公告)日：2007-05-10

申请号：US11540912

申请日：2006-09-29

申请人： Heeman Choe ,  John Stevens ,  James Westhoff ,  Jimmy Eason ,  James Overstreet

发明人： Heeman Choe ,  John Stevens ,  James Westhoff ,  Jimmy Eason ,  James Overstreet

IPC分类号： E21B10/00

CPC分类号： E21B10/00 ,  E21B10/567

摘要： Rotary drill bits for drilling subterranean formations include a bit body and at least one cutting structure disposed on a face thereof. The bit body includes a crown region comprising a particle-matrix composite material that includes a plurality of boron carbide particles dispersed throughout an aluminum or aluminum-based alloy matrix material. In some embodiments, the matrix material may include a continuous solid solution phase and a discontinuous precipitate phase. Methods of manufacturing rotary drill bits for drilling subterranean formations include infiltrating a plurality of boron carbide particles with a molten aluminum or aluminum-based material. In additional methods, a green powder component is provided that includes a plurality of particles each comprising boron carbide and a plurality of particles each comprising aluminum or an aluminum-based alloy material. The green powder component is at least partially sintered to provide a bit body, and a shank is attached to the bit body.

摘要翻译： 用于钻探地层的旋转钻头包括钻头体和设置在其表面上的至少一个切割结构。 钻头体包括冠部区域，其包括颗粒 - 基质复合材料，其包括分散在整个铝或铝基合金基体材料中的多个碳化硼颗粒。 在一些实施方案中，基质材料可以包括连续的固溶相和不连续的沉淀相。 用于钻探地下地层的旋转钻头的制造方法包括用熔融的铝或铝基材料渗透多个碳化硼颗粒。 在另外的方法中，提供了一种绿色粉末组分，其包括多个颗粒，每个颗粒包含碳化硼和多个颗粒，每个颗粒包括铝或铝基合金材料。 绿色粉末成分至少部分地被烧结以提供钻头体，并且柄部附接到钻头体上。

公开(公告)号：US20050247491A1

公开(公告)日：2005-11-10

申请号：US11116752

申请日：2005-04-28

申请人： Prakash Mirchandani ,  Jimmy Eason ,  James Oakes ,  James Westhoff ,  Gabriel Collins ,  John Stevens ,  Steven Caldwell ,  Alfred Mosco

发明人： Prakash Mirchandani ,  Jimmy Eason ,  James Oakes ,  James Westhoff ,  Gabriel Collins ,  John Stevens ,  Steven Caldwell ,  Alfred Mosco

IPC分类号： C22C1/10 ,  C22C29/00 ,  C22C29/06 ,  E21B10/00 ,  E21B10/46 ,  E21B10/36

CPC分类号： E21B10/46 ,  B22F2005/001 ,  B22F2998/00 ,  C22C1/1068 ,  C22C29/00 ,  C22C29/005 ,  C22C29/067 ,  B22F7/06

摘要： The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

摘要翻译： 本发明涉及用于形成钻头的钻头体的组合物和方法。 钻头体可以包括硬质颗粒，其中硬颗粒包含至少一种碳化物，氮化物，硼化物及其氧化物和固体溶液，以及将硬颗粒结合在一起的粘合剂。 粘合剂可以包含选自钴，镍和铁中的至少一种金属，以及任选地至少一种选自30-60重量％范围内的过渡金属碳化物的熔点降低成分，至多10重量％的硼 ，高达20重量％的硅，至多20重量％的铬，以及至多25重量％的锰，其中重量百分数是基于粘合剂的总重量。 此外，硬质颗粒可以包括（i）碳化钨（WC + W2C）颗粒，（ii）过渡金属碳化物颗粒中的至少一种，其选自钛，铬，钒，锆，铪，钽，钼， 铌和钨，和（iii）烧结的硬质合金颗粒。

公开(公告)号：US20080101977A1

公开(公告)日：2008-05-01

申请号：US11932027

申请日：2007-10-31

申请人： Jimmy Eason ,  James Westhoff ,  John Stevens

发明人： Jimmy Eason ,  James Westhoff ,  John Stevens

IPC分类号： B22F3/12

CPC分类号： C22C29/00 ,  B22F7/062 ,  C22C29/005 ,  E21B10/00

摘要： The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

摘要翻译： 本发明涉及用于形成钻头的钻头体的组合物和方法。 钻头体可以包括硬质颗粒，其中硬颗粒包含至少一种碳化物，氮化物，硼化物及其氧化物和固体溶液，以及将硬颗粒结合在一起的粘合剂。 粘合剂可以包含选自钴，镍和铁中的至少一种金属，以及任选地至少一种选自30-60重量％范围内的过渡金属碳化物的熔点降低成分，至多10重量％的硼 ，高达20重量％的硅，至多20重量％的铬，以及至多25重量％的锰，其中重量百分数是基于粘合剂的总重量。 此外，硬质颗粒可以包括（i）碳化钨（WC + W2C）颗粒，（ii）过渡金属碳化物颗粒中的至少一种，其选自钛，铬，钒，锆，铪，钽，钼， 铌和钨，和（iii）烧结的硬质合金颗粒。

公开(公告)号：US20070102199A1

公开(公告)日：2007-05-10

申请号：US11272439

申请日：2005-11-10

申请人： Redd Smith ,  John Stevens ,  James Duggan ,  Nicholas Lyons ,  Jimmy Eason ,  Jared Gladney ,  James Oxford ,  Benjamin Chrest

发明人： Redd Smith ,  John Stevens ,  James Duggan ,  Nicholas Lyons ,  Jimmy Eason ,  Jared Gladney ,  James Oxford ,  Benjamin Chrest

IPC分类号： E21B10/00

CPC分类号： E21B10/00 ,  B22F7/062 ,  B22F7/08 ,  B22F2005/001 ,  B22F2005/002 ,  B22F2998/00 ,  B22F2998/10 ,  C22C26/00 ,  C22C29/06 ,  C22C29/14 ,  C22C29/16 ,  E21B10/54 ,  B22F3/162 ,  B22F3/15 ,  B22F3/1021

摘要： Methods of forming bit bodies for earth-boring bits include assembling green components, brown components, or fully sintered components, and sintering the assembled components. Other methods include isostatically pressing a powder to form a green body substantially composed of a particle-matrix composite material, and sintering the green body to provide a bit body having a desired final density. Methods of forming earth-boring bits include providing a bit body substantially formed of a particle-matrix composite material and attaching a shank to the body. The body is provided by pressing a powder to form a green body and sintering the green body. Earth boring Earth-boring bits include a unitary structure substantially formed of a particle-matrix composite material. The unitary structure includes a first region configured to carry cutters and a second region that includes a threaded pin. Earth-boring bits include a shank attached directly to a body substantially formed of a particle-matrix composite material.

摘要翻译： 用于钻孔钻头的钻头体的方法包括组装绿色部件，棕色部件或完全烧结的部件，并烧结组装的部件。 其他方法包括均匀地压制粉末以形成基本上由颗粒 - 基体复合材料组成的生坯，并且烧结生坯以提供具有所需最终密度的钻头体。 形成钻孔钻头的方法包括提供基本上由颗粒 - 基质复合材料形成的钻头体并将柄连接到主体上。 通过按压粉末以形成生坯并烧结生坯体来提供身体。 地球镗孔钻头包括基本上由颗粒 - 基质复合材料形成的单一结构。 整体结构包括构造成承载切割器的第一区域和包括螺纹销的第二区域。 钻孔钻头包括直接连接到基本上由颗粒 - 基体复合材料形成的主体上的柄。

公开(公告)号：US20070102198A1

公开(公告)日：2007-05-10

申请号：US11271153

申请日：2005-11-10

申请人： James Oxford ,  Jimmy Eason ,  Redd Smith ,  John Stevens ,  Nicholas Lyons

发明人： James Oxford ,  Jimmy Eason ,  Redd Smith ,  John Stevens ,  Nicholas Lyons

IPC分类号： E21B10/00

CPC分类号： E21B10/00 ,  B22F7/062 ,  B22F7/08 ,  B22F2003/245 ,  B22F2005/001 ,  B22F2005/002 ,  B22F2998/10 ,  C22C29/08 ,  E21B10/62 ,  B22F3/1021 ,  B22F3/162

摘要： Methods of forming earth-boring rotary drill bits include providing a bit body, providing a shank that is configured for attachment to a drill string, and attaching the shank to the bit body. Providing a bit body includes providing a green powder component having a first region having a first composition and a second region having a second, different composition, and at least partially sintering the green powder component. Other methods include providing a powder mixture, pressing the powder mixture to form a green component, and sintering the green component to a final density. A shank is provided that includes an aperture, and a feature is machined in a surface of the bit body. The aperture is aligned with the feature, and a retaining member is inserted through the aperture. An earth-boring bit includes a bit body comprising a particle-matrix composite material including a plurality of hard particles dispersed throughout a matrix material. A shank is attached to the bit body using a retaining member.

摘要翻译： 形成钻孔旋转钻头的方法包括提供钻头体，提供构造成用于附接到钻柱的柄，以及将柄连接到钻头体上。 提供有点体包括提供具有第一组分的第一区域和具有第二不同组成的第二区域并且至少部分地烧结绿色粉末组分的绿色粉末组分。 其他方法包括提供粉末混合物，挤压粉末混合物以形成绿色组分，并将绿色组分烧结至最终密度。 提供了一种柄，其包括孔，并且特征被加工在钻头体的表面中。 孔与该特征对准，并且保持构件插入穿过该孔。 一种钻孔钻头包括一个包括一颗粒基复合材料的钻头体，该复合材料包括分散在基体材料中的多个硬颗粒。 使用保持构件将柄连接到钻头体上。

公开(公告)号：US20080029310A1

公开(公告)日：2008-02-07

申请号：US11823800

申请日：2007-06-27

申请人： John Stevens ,  James Overstreet ,  Kenneth Gilmore ,  Jeremy Morgan

发明人： John Stevens ,  James Overstreet ,  Kenneth Gilmore ,  Jeremy Morgan

IPC分类号： E21B10/46 ,  B24D3/10

CPC分类号： E21B10/54 ,  B22F2998/10 ,  C22C29/00 ,  C22C29/08 ,  B22F1/0003 ,  B22F3/15 ,  B22F3/10

摘要： A rotary drill bit includes a bit body substantially formed of a particle-matrix composite material having an exterior surface and an abrasive wear-resistant material disposed on at least a portion of the exterior surface of the bit body. Methods for applying an abrasive wear-resistant material to a surface of a drill bit are also provided.

摘要翻译： 旋转钻头包括基本上由具有外表面的颗粒 - 基质复合材料形成的钻头体和设置在钻头体的外表面的至少一部分上的磨料耐磨材料。 还提供了将磨料耐磨材料施加到钻头表面的方法。

公开(公告)号：US08616089B2

公开(公告)日：2013-12-31

申请号：US13084078

申请日：2011-04-11

申请人： Heeman Choe ,  John Stevens ,  Eric Sullivan

发明人： Heeman Choe ,  John Stevens ,  Eric Sullivan

IPC分类号： B21K5/04

CPC分类号： E21B10/46 ,  B22D19/14 ,  B22F2005/001 ,  C22C9/01 ,  C22C9/04 ,  C22C14/00 ,  C22C19/00 ,  C22C19/03 ,  C22C26/00 ,  C22C32/00 ,  C22C38/00 ,  E21B10/00

摘要： A method of making an earth-boring rotary drill bit including a bit body configured to carry one or more cutters for engaging a subterranean earth formation. The method includes providing a plurality of hard particles in a mold to define a particle precursor of the bit body. The method also includes infiltrating the particle precursor of the bit body with a molten matrix material comprising a shape memory alloy forming a hard particle-molten matrix material mixture, wherein the hard particles are randomly dispersed within the molten matrix material. The method further includes cooling the molten matrix material to solidify a matrix material and form the bit body comprising a particle-matrix composite material having the plurality of hard particles randomly dispersed throughout the matrix material.

摘要翻译： 一种制造钻孔旋转钻头的方法，该钻头包括构造成承载用于接合地下地层的一个或多个切割器的钻头体。 该方法包括在模具中提供多个硬颗粒以限定钻头体的颗粒前体。 该方法还包括用熔融基质材料渗透钻头体的颗粒前体，所述熔融基质材料包含形成硬颗粒熔融基质材料混合物的形状记忆合金，其中硬颗粒随机分散在熔融基体材料内。 该方法还包括冷却熔融基质材料以固化基质材料并形成钻头体，其包含具有随机分散在整个基体材料中的多个硬颗粒的颗粒 - 基体复合材料。

公开(公告)号：US20100187018A1

公开(公告)日：2010-07-29

申请号：US12361653

申请日：2009-01-29

申请人： Heeman Choe ,  John Stevens ,  Eric Sullivan

发明人： Heeman Choe ,  John Stevens ,  Eric Sullivan

IPC分类号： E21B10/42 ,  E21B10/55 ,  B22D19/14

CPC分类号： E21B10/46 ,  B22D19/14 ,  B22F2005/001 ,  C22C9/01 ,  C22C9/04 ,  C22C14/00 ,  C22C19/00 ,  C22C19/03 ,  C22C26/00 ,  C22C32/00 ,  C22C38/00 ,  E21B10/00

摘要： An earth-boring rotary drill bit includes a bit body configured to carry one or more cutters for engaging a subterranean earth formation, the bit body comprising a particle-matrix composite material having a plurality of hard particles dispersed throughout a matrix material, the matrix material comprising a shape memory alloy. The matrix material comprises a metal alloy configured to undergo a reversible phase transformation between an austenitic phase and a martensitic phase. The matrix material may include an Ni-based alloy, Cu-based alloy, Co-based alloy, Fe-based alloy or Ti-based alloy. The drill bit may be made by a method that includes: providing a plurality of hard particles in a mold to define a particle precursor of the bit body; infiltrating the particle precursor of the bit body with a molten matrix material comprising a shape memory alloy forming a particle-matrix mixture; and cooling the molten particle-matrix mixture to solidify the matrix material and forming a bit body having a particle-matrix composite material comprising a shape memory alloy.

摘要翻译： 钻头旋转钻头包括构造成承载用于接合地下地层的一个或多个切割器的钻头体，所述钻头体包括具有分散在基体材料中的多个硬颗粒的颗粒 - 基质复合材料，所述基体材料 包括形状记忆合金。 基体材料包括配置成在奥氏体相和马氏体相之间经历可逆相变的金属合金。 基体材料可以包括Ni基合金，Cu基合金，Co基合金，Fe基合金或Ti基合金。 钻头可以通过一种方法制成，该方法包括：在模具中提供多个硬质颗粒以限定钻头体的颗粒前体; 用包含形成记忆合金的熔融基质材料渗透钻头体的颗粒前体形成颗粒 - 基质混合物; 并冷却熔融的颗粒 - 基质混合物以固化基体材料并形成具有包含形状记忆合金的颗粒 - 基体复合材料的钻头体。