Bit body formed of multiple matrix materials and method for making the same
    1.
    发明申请
    Bit body formed of multiple matrix materials and method for making the same 有权
    由多种矩阵材料形成的位体及其制造方法

    公开(公告)号:US20060032335A1

    公开(公告)日:2006-02-16

    申请号:US11250097

    申请日:2005-10-12

    申请人: Kumar Kembaiyan

    发明人: Kumar Kembaiyan

    IPC分类号: B21K5/04

    CPC分类号: E21B10/00 B22F7/06

    摘要: Drill bit bodies are provided having one portion formed of one composition and a further portion formed of a different composition. The different compositions provide different functional properties to respective portions of the drill bit body. Methods for forming such drill bit bodies are also provided.

    摘要翻译: 设置钻头体,其一部分由一种组合物形成,另一部分由不同组成形成。 不同的组合物为钻头体的各个部分提供不同的功能特性。 还提供了形成这种钻头体的方法。

    Layered hardfacing, durable hardfacing for drill bits
    2.
    发明申请
    Layered hardfacing, durable hardfacing for drill bits 失效
    分层硬面,耐用的钻头硬化面

    公开(公告)号:US20060185908A1

    公开(公告)日:2006-08-24

    申请号:US11061305

    申请日:2005-02-18

    IPC分类号: E21B10/36

    CPC分类号: E21B10/54

    摘要: A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.

    摘要翻译: 一种具有位于其上的至少一个刀片的钻头体的钻头,设置在所述至少一个刀片上的至少一个切割器凹槽,设置在所述至少一个切割器凹槽中的至少一个切割器,至少施加到所述至少一个刀片的选定部分的硬化面 显示和描述钻头。 表面硬化包括设置在钻头的选定部分上的第一表面硬化层,设置在第一表面硬化层上的第二表面硬化层,其中第一表面硬化层具有与第二表面硬化层的硬度不同的硬度。

    Braze alloy
    4.
    发明申请
    Braze alloy 审中-公开
    钎焊合金

    公开(公告)号:US20050089440A1

    公开(公告)日:2005-04-28

    申请号:US10734567

    申请日:2003-12-12

    申请人: Kumar Kembaiyan

    发明人: Kumar Kembaiyan

    摘要: A braze alloy is described which includes indium and/or thallium as alloying elements. For example, between about 0.5% and about 10% by weight of indium (In) and/or thallium (Tl) can be added to a braze alloy to reduce the braze temperature without substantially effecting braze strength. Braze alloys that are alloyed to including indium (In) and/or thallium (Tl) can be use in brazing cutting elements to drilling tools. These alloying elements may also be added to braze alloys used for other applications to reduce braze temperature.

    摘要翻译: 描述了包括铟和/或铊作为合金元素的钎焊合金。 例如,可以将铜(In)和/或铊(Tl)的约0.5重量%至约10重量%加入钎焊合金中以降低钎焊温度,而基本上不影响钎焊强度。 合金化以包括铟(In)和/或铊(Tl)的钎焊合金可用于将切割元件钎焊到钻具中。 这些合金元素也可以添加到用于其它应用的钎焊合金中以降低钎焊温度。

    HIGH-STRENGTH, HIGH-TOUGHNESS MATRIX BIT BODIES
    5.
    发明申请
    HIGH-STRENGTH, HIGH-TOUGHNESS MATRIX BIT BODIES 失效
    高强度,高韧性矩阵体

    公开(公告)号:US20070240910A1

    公开(公告)日:2007-10-18

    申请号:US11764661

    申请日:2007-06-18

    IPC分类号: E21B10/46

    摘要: A new composition for forming a matrix body which includes spherical sintered tungsten carbide and an infiltration binder including one or more metals or alloys is disclosed. In some embodiments, the composition may include a Group VIIIB metal selected from one of Ni, Co, Fe, and alloys thereof. Moreover, the composition may also include cast tungsten carbide. In addition, the composition may also include carburized tungsten carbide.

    摘要翻译: 公开了一种用于形成基体的新组合物,其包括球形烧结碳化钨和包含一种或多种金属或合金的渗透粘合剂。 在一些实施方案中,组合物可以包括选自Ni,Co,Fe中的一种的ⅧB族金属及其合金。 此外,组合物还可以包括铸造碳化钨。 此外,组合物还可以包括渗碳碳化钨。

    High-strength/high toughness alloy steel drill bit blank
    6.
    发明申请
    High-strength/high toughness alloy steel drill bit blank 失效
    高强度/高韧性合金钢钻头钻头

    公开(公告)号:US20060201718A1

    公开(公告)日:2006-09-14

    申请号:US11435413

    申请日:2006-05-16

    IPC分类号: E21B10/54

    摘要: Drill bit reinforcing members or blanks of this invention are formed from high-strength steels having a carbon content less than about 0.3 percent by weight, a yield strength of at least 55,000 psi, a tensile strength of at least 80,000 psi, a toughness of at least 40 CVN-L, Ft-lb, and a rate of expansion percentage change less than about 0.0025%/° F. during austenitic to ferritic phase transformation. In one embodiment, such steel comprises in the range of from about 0.1 to 0.3 percent by weight carbon, 0.5 to 1.5 percent by weight manganese, up to about 0.8 percent by weight chromium, 0.05 to 4 percent by weight nickel, and 0.02 to 0.8 percent by weight molybdenum. In another example, such steel comprises in the range of from about 0.1 to 0.3 percent by weight carbon, 0.9 to 1.5 percent by weight manganese, 0.1 to 0.5 percent by weight silicon, and one or more microalloying element selected from the group consisting of vanadium, niobium, titanium, zirconium, aluminum and mixtures thereof.

    摘要翻译: 本发明的钻头加强构件或坯料由碳含量小于约0.3重量%,屈服强度至少为55,000psi,抗拉强度至少为80,000psi的高强度钢形成, 在奥氏体相对铁素体相变期间,至少40CVN-L,Ft-lb,膨胀率变化率小于约0.0025%/°F。 在一个实施方案中,这种钢包含约0.1至0.3重量%的碳,0.5至1.5重量%的锰,至多约0.8重量%的铬,0.05至4重量%的镍和0.02至0.8 钼重量百分比。 在另一个实例中,这种钢包含约0.1至0.3重量%的碳,0.9至1.5重量%的锰,0.1至0.5重量%的硅和一种或多种选自钒的微合金元素 ,铌,钛,锆,铝及其混合物。

    Braze alloy for drilling applications
    7.
    发明申请
    Braze alloy for drilling applications 有权
    钎焊合金用于钻孔应用

    公开(公告)号:US20050087371A1

    公开(公告)日:2005-04-28

    申请号:US10692926

    申请日:2003-10-24

    申请人: Kumar Kembaiyan

    发明人: Kumar Kembaiyan

    摘要: A down hole cutting tool includes a cutting element support structure. The cutting element support structure has at least one cavity formed therein. A cutting element is disposed in the cavity. Braze alloy is also disposed in the cavity between the cutting element and the cutting element support structure. The braze alloy comprises between about 0.5% and about 10% by weight of at least one selected from the group of gallium (Ga), indium (In), thallium (Tl). Methods for building a down hole tool using the braze alloy are also disclosed.

    摘要翻译: 井下切割工具包括切割元件支撑结构。 切割元件支撑结构具有形成在其中的至少一个空腔。 切割元件设置在空腔中。 钎焊合金还设置在切割元件和切割元件支撑结构之间的空腔中。 钎焊合金包含约0.5重量%至约10重量%的选自镓(Ga),铟(In),铊(Tl)中的至少一种。 还公开了使用钎焊合金构造井下工具的方法。