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    CUTTING ELEMENTS HAVING CUTTING EDGES WITH CONTINUOUS VARYING RADII AND BITS INCORPORATING THE SAME
    2.
    发明申请
    CUTTING ELEMENTS HAVING CUTTING EDGES WITH CONTINUOUS VARYING RADII AND BITS INCORPORATING THE SAME 有权
    具有连续变化的RADII切割边缘的切割元件和与其相同的位置

    公开(公告)号：US20140041948A1

    公开(公告)日：2014-02-13

    申请号：US13958445

    申请日：2013-08-02

    Applicant: SMITH INTERNATIONAL INC.

    Inventor： YUELIN SHEN ,  YOUHE ZHANG ,  MICHAEL JANSSEN

    IPC: E21B10/567

    CPC classification number: E21B10/5673 ,  E21B10/567 ,  E21B10/5676 ,  E21B10/573

    Abstract: 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.

    Abstract translation: 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。

    GAGE CUTTER PROTECTION FOR DRILLING BITS
    3.
    发明申请
    GAGE CUTTER PROTECTION FOR DRILLING BITS 有权
    用于钻头的切割刀保护

    公开(公告)号：US20130292186A1

    公开(公告)日：2013-11-07

    申请号：US13836603

    申请日：2013-03-15

    Applicant: SMITH INTERNATIONAL, INC.

    Inventor： YOUHE ZHANG ,  MICHAEL G. AZAR ,  CHEN CHEN ,  YURI BURHAN

    IPC: E21B17/10

    CPC classification number: E21B17/1092 ,  E21B10/43 ,  E21B2010/425

    Abstract: A downhole cutting tool may include a tool body, a plurality of blades extending azimuthally from the tool body comprising a cone region, a shoulder region, and a gage region, at least one cutting element disposed along the cone region and the shoulder region of the blade, and at least one gage cutting element disposed along the gage region of the blade wherein the at least one gage cutting element has a negative backrake ranging from greater than 70 to about 85 degrees.

    Abstract translation: 井下切割工具可以包括工具主体，从工具主体方位角延伸的多个刀片，其包括锥体区域，肩部区域和计量区域，至少一个沿锥体区域和肩部区域设置的切割元件 刀片，以及沿着刀片的规格区域设置的至少一个量具切割元件，其中所述至少一个计量切割元件具有大于70至约85度的负反向力。

    CUTTING ELEMENTS WITH RE-PROCESSED THERMALLY STABLE POLYCRYSTALLINE DIAMOND CUTTING LAYERS, BITS INCORPORATING THE SAME, AND METHODS OF MAKING THE SAME
    4.
    发明申请
    CUTTING ELEMENTS WITH RE-PROCESSED THERMALLY STABLE POLYCRYSTALLINE DIAMOND CUTTING LAYERS, BITS INCORPORATING THE SAME, AND METHODS OF MAKING THE SAME 有权
    具有再加工的热稳定的多晶金刚石切割层的切割元件，与其相同的部件及其制造方法

    公开(公告)号：US20140034396A1

    公开(公告)日：2014-02-06

    申请号：US14048692

    申请日：2013-10-08

    Applicant: SMITH INTERNATIONAL, INC.

    Inventor： YOUHE ZHANG ,  YUELIN SHEN ,  MADAPUSI K. KESHAVAN

    IPC: E21B10/55 ,  E21B10/567

    CPC classification number: E21B10/55 ,  B22F7/062 ,  B22F2005/001 ,  B22F2007/068 ,  B22F2999/00 ,  B23P6/00 ,  B23P15/28 ,  C22C26/00 ,  C22C2204/00 ,  E21B10/567 ,  Y10T29/49732 ,  B22F3/26 ,  B22F3/14

    Abstract: A method of re-processing used TSP material layers to form cutting elements, bits with such cutting elements mounted on their bodies, and bits having re-processed TSP material layers attached to their bodies, as well as such cutting elements and bits are provided. The method includes providing a used TSP material cutting element having a TSP material layer and substrate, or a bit having a TSP material layer attached to the bit, removing the used TSP material layer from the cutting element or bit, cutting the used TSP material layer to a new shape, if necessary, optionally re-leaching the used TSP layer and re-using the TSP material layer to form a cutting element, or in forming a bit body. The formed cutting element may be mounted on a bit body.

    Abstract translation: 提供了一种重新处理使用的TSP材料层以形成切割元件的方法，具有安装在其主体上的这种切割元件的钻头以及连接到其主体上的具有重新处理的TSP材料层的钻头以及这些切割元件和钻头。 该方法包括提供具有TSP材料层和衬底的已使用的TSP材料切割元件，或者具有附接到该钻头的TSP材料层的钻头，从切割元件或钻头中去除所使用的TSP材料层，切割所使用的TSP材料层 如果需要，可选地再次浸出所使用的TSP层并重新使用TSP材料层以形成切割元件，或者形成钻头体。 成形的切割元件可以安装在钻头体上。

    ROLLING CUTTER USING PIN, BALL OR EXTRUSION ON THE BIT BODY AS ATTACHMENT METHODS
    5.
    发明申请
    ROLLING CUTTER USING PIN, BALL OR EXTRUSION ON THE BIT BODY AS ATTACHMENT METHODS 有权
    使用PIN，球或挤压在刀身上滚动切割器作为附件方法

    公开(公告)号：US20130140094A1

    公开(公告)日：2013-06-06

    申请号：US13706153

    申请日：2012-12-05

    Applicant: Smith International, INC.

    Inventor： YURI BURHAN ,  YOUHE ZHANG ,  YUELIN SHEN

    IPC: E21B10/08 ,  B23P15/28 ,  E21B10/46

    CPC classification number: E21B10/43 ,  E21B10/46 ,  E21B10/573

    Abstract: A drill bit has a bit body, a plurality of blades extending radially from the bit body, wherein each blade comprises a leading face and a trailing face, a plurality of cutter pockets disposed on the plurality of blades, at least one rolling cutter, wherein each rolling cutter is disposed in one of the cutter pockets, and wherein each rolling cutter comprises a cutting face, a cutting edge, an outer circumferential surface, and a back face. A back retainer is disposed adjacent to the back face, wherein the back retainer protrudes partially into the rolling cutter along a rotational axis of the rolling cutter, and a front retainer is disposed adjacent to the at least one rolling cutter on the leading face of the blade. Each front retainer has a retention end, wherein the retention end is positioned adjacent to a portion of the cutting face of each rolling cutter, and an attachment end, wherein the attachment end is attached to a portion of the blade.

    Abstract translation: 钻头具有一个位体，多个叶片从钻头体径向延伸，其中每个叶片包括前表面和后表面，多个切割凹坑设置在多个叶片上，至少一个滚切机，其中 每个轧制刀具设置在一个切割器凹穴中，并且其中每个轧制切割器包括切割面，切割边缘，外周面和背面。 背部保持器设置成与背面相邻，其中后保持器沿着滚动切割器的旋转轴线部分地突出到滚动切割器中，并且前保持器设置成与所述至少一个滚动切割器相邻， 刀。 每个前保持器具有保持端，其中保持端邻近每个滚动切割器的切割面的一部分定位，以及附接端，其中附接端附接到叶片的一部分。

    CUTTING ELEMENTS RETAINED WITHIN SLEEVES
    6.
    发明申请
    CUTTING ELEMENTS RETAINED WITHIN SLEEVES 有权
    切割元素在SLEEVES中保留

    公开(公告)号：US20130333953A1

    公开(公告)日：2013-12-19

    申请号：US13786085

    申请日：2013-03-05

    Applicant: SMITH INTERNATIONAL, INC.

    Inventor： YOUHE ZHANG ,  JIBIN SHI ,  YURI BURHAN ,  CHEN CHEN

    IPC: E21B10/42

    CPC classification number: E21B10/42 ,  E21B10/573 ,  E21B10/5735 ,  E21B10/627 ,  E21B10/633

    Abstract: A cutter assembly may include a sleeve; and at least one cutting element having a lower spindle portion retained in the sleeve and a portion of the cutting element interfacing an axial bearing surface of the sleeve, wherein an outer diameter D of the cutting element and a radial length T of a substantially planar portion of the axial bearing surface of the sleeve have the following relationship: ( 1/25)D≦T≦(¼)D.

    Abstract translation: 切割器组件可以包括套筒; 以及至少一个切割元件，其具有保持在所述套筒中的下心轴部分，并且所述切割元件的一部分与所述套筒的轴向支承表面相接合，其中所述切割元件的外径D和基本平坦部分的径向长度T 的轴向轴承表面具有以下关系：（1/25）D @ T @（¼）D。

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