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    Stress balanced cutting structure
    1.
    发明申请
    Stress balanced cutting structure 审中-公开
    应力平衡切割结构

    公开(公告)号：US20070078632A1

    公开(公告)日：2007-04-05

    申请号：US11198408

    申请日：2005-08-05

    申请人： Yuelin Shen ,  Youhe Zhang ,  John Williams ,  Peter Cariveau ,  Michael Janssen

    发明人： Yuelin Shen ,  Youhe Zhang ,  John Williams ,  Peter Cariveau ,  Michael Janssen

    IPC分类号： G06F17/50

    CPC分类号： E21B10/43 ,  E21B10/55 ,  G06F17/50 ,  G06F2217/16

    摘要： A method for designing a drill bit including selecting a characteristic associated with a failure mode. A first value of the characteristic of a first cutting element and a second value for the characteristic of a second cutting element are determined. The method also includes determining whether a difference between the first value and the second value is within a predetermined range. A cutting element design parameter for the first cutting element is adjusted if the difference is outside the predetermined range. The determining first and second values, determining the difference, and adjusting a cutting element design parameter are repeated until the difference is within the predetermined range.

    摘要翻译： 一种用于设计钻头的方法，包括选择与故障模式相关联的特性。 确定第一切割元件的特性的第一值和第二切割元件的特性的第二值。 该方法还包括确定第一值和第二值之间的差是否在预定范围内。 如果差异在预定范围之外，则调整用于第一切割元件的切割元件设计参数。 重复确定第一和第二值，确定差异和调整切割元素设计参数，直到该差在预定范围内。

    Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance
    2.
    发明授权
    Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance 有权
    具有改善的耐磨性，热稳定性和耐冲击性的多晶金刚石材料

    公开(公告)号：US07493973B2

    公开(公告)日：2009-02-24

    申请号：US11140615

    申请日：2005-05-26

    申请人： Madapusi K. Keshavan ,  Youhe Zhang ,  Yuelin Shen ,  Anthony Griffo ,  Michael Janssen

    发明人： Madapusi K. Keshavan ,  Youhe Zhang ,  Yuelin Shen ,  Anthony Griffo ,  Michael Janssen

    IPC分类号： E21B10/46

    CPC分类号： E21B10/55 ,  B01J3/06 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B24D3/10 ,  B24D18/0009 ,  C01B32/25 ,  E21B10/567 ,  E21B2010/563 ,  Y10T428/30

    摘要： PCD materials comprise a diamond body having bonded diamond crystals and interstitial regions disposed among the crystals. The diamond body is formed from diamond grains and a catalyst material at high pressure/high temperature conditions. The diamond grains have an average particle size of about 0.03 mm or greater. At least a portion of the diamond body has a high diamond volume content of greater than about 93 percent by volume. The entire diamond body can comprise high volume content diamond or a region of the diamond body can comprise the high volume content diamond. The diamond body includes a working surface, a first region substantially free of the catalyst material, and a second region that includes the catalyst material. At least a portion of the first region extends from the working surface to depth of from about 0.01 to about 0.1 mm.

    摘要翻译： PCD材料包括具有结合的金刚石晶体和布置在晶体之间的间隙区域的金刚石体。 金刚石体在高压/高温条件下由金刚石晶粒和催化剂材料形成。 金刚石晶粒的平均粒径为约0.03mm以上。 金刚石体的至少一部分具有大于约93体积％的高金刚石体积含量。 整个钻石体可以包括高体积的钻石，或者金刚石体的区域可以包括高体积的钻石。 金刚石体包括工作表面，基本上不含催化剂材料的第一区域和包括催化剂材料的第二区域。 第一区域的至少一部分从工作表面延伸至约0.01至约0.1mm的深度。

    Cutting elements having cutting edges with continuous varying radii and bits incorporating the same
    4.
    发明申请
    Cutting elements having cutting edges with continuous varying radii and bits incorporating the same 有权
    具有切割边缘的切割元件具有连续变化的半径和包含该切割元件的位

    公开(公告)号：US20070131458A1

    公开(公告)日：2007-06-14

    申请号：US11638934

    申请日：2006-12-13

    申请人： Yuelin Shen ,  Youhe Zhang ,  Michael Janssen

    发明人： Yuelin Shen ,  Youhe Zhang ,  Michael Janssen

    IPC分类号： E21B10/36

    CPC分类号： E21B10/5673 ,  E21B10/567 ,  E21B10/5676 ,  E21B10/573

    摘要： A cutting element is provided having a substrate and an ultra hard material cutting layer over the substrate. The cutting layer includes a surface portion for making contact with a material to be cut by the cutting element. The surface portion in cross-section has a curvature that has a varying radius of curvature. A bit incorporating such a cutting element is also provided.

    摘要翻译： 提供切割元件，其具有在基底上的基底和超硬材料切割层。 切割层包括用于与由切割元件切割的材料接触的表面部分。 横截面的表面部分具有变化的曲率半径的曲率。 还提供了一种包含这种切割元件的部分。

    Thermally stable ultra-hard material compact constructions
    6.
    发明授权
    Thermally stable ultra-hard material compact constructions 有权
    耐热稳定的超硬材料结构紧凑

    公开(公告)号：US08066087B2

    公开(公告)日：2011-11-29

    申请号：US11745726

    申请日：2007-05-08

    申请人： Anthony Griffo ,  Madapusi K. Keshavan ,  Youhe Zhang ,  Yuelin Shen ,  Michael Janssen

    发明人： Anthony Griffo ,  Madapusi K. Keshavan ,  Youhe Zhang ,  Yuelin Shen ,  Michael Janssen

    IPC分类号： E21B10/36 ,  B24D3/02 ,  C09C1/68

    CPC分类号： E21B10/5735

    摘要： Thermally stable ultra-hard compact constructions comprise a polycrystalline diamond body substantially free of a catalyst material, and a substrate that is joined thereto. The substrate can be ceramic, metallic, cermet and combinations thereof, and can be joined to the body by a braze material or other material that forms an attachment bond at high pressure/high temperature conditions. The body and substrate are specially formed having complementary interfacing surface features to facilitate providing an improved degree of attachment therebetween. The complementary surface features can in the form of openings and projections, e.g., one of the body or substrate can comprise one or more openings, and the other of the body or substrate can comprise one or more projections, disposed within or extending from respective interfacing surfaces. The complementary surface features operate to resist unwanted delamination between the body and substrate, thereby extending effective service life of the construction.

    摘要翻译： 热稳定的超硬紧凑结构包括基本上不含催化剂材料的多晶金刚石体和与其结合的基底。 基材可以是陶瓷，金属，金属陶瓷及其组合，并且可以通过钎焊材料或在高压/高温条件下形成附着结合的其它材料接合到本体。 主体和基底是特别形成的，具有互补的界面表面特征，以便于提供改进的连接程度。 互补的表面特征可以是开口和突起的形式，例如，主体或基底中的一个可以包括一个或多个开口，并且主体或基底中的另一个可以包括设置在相应接口内或从相应接口延伸的一个或多个突起 表面。 互补的表面特征用于抵抗主体和基底之间的不必要的分层，从而延长了结构的有效使用寿命。

    Modified cutters and a method of drilling with modified cutters
    8.
    再颁专利
    Modified cutters and a method of drilling with modified cutters 有权
    改进的切割机和用修改的切割机钻孔的方法

    公开(公告)号：USRE45748E1

    公开(公告)日：2015-10-13

    申请号：US14180121

    申请日：2014-02-13

    申请人： Youhe Zhang ,  Yuelin Shen

    发明人： Youhe Zhang ,  Yuelin Shen

    IPC分类号： E21B10/55 ,  E21B10/567 ,  E21B10/573

    CPC分类号： E21B10/5673 ,  E21B10/55 ,  E21B10/5735

    摘要： A cutter for a fixed cutter drill bit including a substrate and an ultrahard material layer disposed on an end surface of the substrate, the ultra hard material layer having an upper surface opposite the substrate end surface and a peripheral surface such that the upper surface intersects the peripheral surface along a peripheral edge. The peripheral edge continuously increases and decreases in height as measured from a plane perpendicular to a longitudinal axis of the cutter.

    摘要翻译： 一种用于固定切割钻头的切割器，其包括设置在所述基板的端面上的基板和超硬材料层，所述超硬材料层具有与所述基板端面相对的上表面和周面，使得所述上表面与所述 圆周表面沿周边边缘。 从垂直于切割器的纵向轴线的平面测量，周边边缘连续地增加和降低高度。

    Rolling cutter assembled directly to the bit pockets
    9.
    发明授权
    Rolling cutter assembled directly to the bit pockets 有权
    滚动刀具直接组装到钻头口袋

    公开(公告)号：US08991523B2

    公开(公告)日：2015-03-31

    申请号：US13152626

    申请日：2011-06-03

    申请人： Yuelin Shen ,  Youhe Zhang ,  Yuri Burhan ,  Michael A. Siracki ,  Mahavir Nagaraj ,  Bala Durairajan ,  Scott D. McDonough ,  Peter Thomas Cariveau

    发明人： Yuelin Shen ,  Youhe Zhang ,  Yuri Burhan ,  Michael A. Siracki ,  Mahavir Nagaraj ,  Bala Durairajan ,  Scott D. McDonough ,  Peter Thomas Cariveau

    IPC分类号： E21B10/08 ,  E21B10/633 ,  B23P15/28

    CPC分类号： E21B10/633 ,  B23P15/28

    摘要： A drill bit includes a bit body, a plurality of blades extending radially from the bit body, a plurality of cutter pockets disposed on the plurality of blades, at least one rolling cutter disposed in one of the cutter pockets, wherein each rolling cutter has a substrate, a cutting face, a cutting edge, and a side surface, and at least one blocker positioned adjacent to each of the at least one rolling cutters on a leading face of the blade, wherein each blocker has a retention end and an attachment end. The retention end of each blocker is positioned adjacent to a portion of the cutting face of each rolling cutter to retain the rolling cutter in the cutter pocket and the attachment end is attached to a portion of the blade.

    摘要翻译： 钻头包括钻头体，从钻头体径向延伸的多个刀片，设置在多个刀片上的多个切割器凹槽，设置在其中一个切割器凹穴中的至少一个滚刀，其中每个滚切刀具有 基板，切割面，切割边缘和侧表面;以及至少一个阻挡件，其邻近于所述刀片的前表面上的所述至少一个滚动切割器中的每一个定位，其中每个阻挡件具有保持端和附接端 。 每个阻塞器的保持端定位成与每个滚动切割器的切割面的一部分相邻，以将滚动切割器保持在切割器凹槽中，并且附接端附接到叶片的一部分。