公开(公告)号：USRE48455E1

公开(公告)日：2021-03-02

申请号：US16397879

申请日：2019-04-29

申请人： Smith International, Inc.

发明人： Yuelin Shen ,  Youhe Zhang ,  Zhou Yong ,  Jiaqing Yu ,  Madapusi K. Keshavan

IPC分类号： E21B10/52 ,  E21B10/567 ,  E21B10/573

摘要： A cutting element for a drill bit includes an outer support element and an inner rotatable cutting element, a portion of which is disposed in the outer support element, where the inner rotatable cutting element has a body with a non-planar cutting face.

公开(公告)号：US20190264511A1

公开(公告)日：2019-08-29

申请号：US16410135

申请日：2019-05-13

申请人： Smith International, Inc.

发明人： Chen Chen ,  Huimin Song ,  Liang Zhao ,  Youhe Zhang ,  Michael G. Azar ,  Xiaoge Gan ,  Madapusi K. Keshavan ,  Zhijun Lin ,  Bala Durairajan ,  Michael L. Stewart

IPC分类号： E21B10/567 ,  E21B10/573

摘要： A cutting element may include a substrate, an upper surface of the substrate including a crest, the crest transitioning into a depressed region, and an ultrahard layer on the upper surface, thereby forming a non-planar interface between the ultrahard layer and the substrate. A top surface of the ultrahard layer includes a cutting crest extending along at least a portion of a diameter of the cutting element, the top surface having a portion extending laterally away from the cutting crest having a lesser height than a peak of the cutting crest.

公开(公告)号：USRE47369E1

公开(公告)日：2019-04-30

申请号：US15599194

申请日：2017-05-18

申请人： Smith International, Inc.

发明人： Yuelin Shen ,  Youhe Zhang ,  Zhou Yong ,  Jiaqing Yu ,  Madapusi K. Keshavan

IPC分类号： E21B10/52 ,  E21B10/567 ,  E21B10/573 ,  E21B10/62

摘要： A cutting element for a drill bit includes an outer support element and an inner rotatable cutting element, a portion of which is disposed in the outer support element, where the inner rotatable cutting element has a body with a non-planar cutting face.

公开(公告)号：US09387571B2

公开(公告)日：2016-07-12

申请号：US13925320

申请日：2013-06-24

申请人： Smith International, Inc.

发明人： Anthony Griffo ,  Madapusi K. Keshavan

IPC分类号： E21B10/42 ,  E21B10/46 ,  B24D18/00 ,  B24D3/10 ,  B01J3/06 ,  C04B35/645 ,  C04B37/02

CPC分类号： B24D18/00 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  C04B35/645 ,  C04B37/026 ,  C04B2237/363 ,  C04B2237/401 ,  C04B2237/61 ,  Y10T156/10 ,  Y10T428/31678

摘要： A method of forming a thermally stable cutting element that includes disposing at least a portion of a polycrystalline abrasive body containing a catalyzing material to be leached into a leaching agent; and subjecting the polycrystalline abrasive object to an elevated temperature and pressure is disclosed. Thermally stable cutting elements and systems and other methods for forming thermally stable cutting elements are also disclosed.

公开(公告)号：US09115553B2

公开(公告)日：2015-08-25

申请号：US14048692

申请日：2013-10-08

申请人： SMITH INTERNATIONAL, INC.

发明人： Youhe Zhang ,  Yuelin Shen ,  Madapusi K. Keshavan

IPC分类号： E21B10/55 ,  E21B10/567 ,  B22F7/06 ,  B23P6/00 ,  B23P15/28 ,  C22C26/00 ,  B22F5/00

CPC分类号： 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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08955734B2

公开(公告)日：2015-02-17

申请号：US14046769

申请日：2013-10-04

申请人： Smith International, Inc.

发明人： Russell J. Steel ,  Scott M. Packer ,  Cary A. Roth ,  Madapusi K. Keshavan

IPC分类号： B23K20/12 ,  B23P15/28 ,  E21B10/08 ,  E21B10/22

CPC分类号： B23K20/122 ,  B23K20/002 ,  B23K20/1225 ,  B23K20/128 ,  B23K20/129 ,  C23C8/60 ,  E21B10/00 ,  E21B10/22 ,  E21B10/26 ,  E21B17/1078 ,  E21B17/16 ,  E21B31/107

摘要： A roller cone drill bit includes a bit body, at least one leg extending downward from the bit body, a journal on each leg, and a roller cone mounted on each journal. A ball race is configured between each journal and roller cone, and a plurality of retention balls is disposed within each ball race. A ball hole extends from the back face of each leg to the ball race, and a ball hole plug fits within the ball hole. The ball hole plug is secured to the leg by a friction stir weld.

摘要翻译： 滚子锥形钻头包括钻头体，从钻头体向下延伸的至少一个支脚，每个支腿上的轴颈，以及安装在每个轴颈上的滚子圆锥体。 在每个轴颈和滚子锥体之间配置有一个滚珠球，并且在每个球赛中设置多个保持球。 球孔从每个腿的背面延伸到球座，球孔插头配合在球孔内。 球孔塞通过摩擦搅拌焊接固定到腿上。

公开(公告)号：US20140262545A1

公开(公告)日：2014-09-18

申请号：US14206280

申请日：2014-03-12

申请人： SMITH INTERNATIONAL, INC.

发明人： Michael G. Azar ,  Bala Durairajan ,  Madapusi K. Keshavan

IPC分类号： E21B10/567

CPC分类号： E21B10/5673 ,  E21B10/43 ,  E21B10/55

摘要： A cutting tool may include a tool body; a plurality of blades extending from the tool body; and a plurality of primary cutting elements and a plurality of backup cutting elements are on each of the plurality of blades, the backup cutting elements being behind and at approximately the same radial distance from the axis of the tool body as a corresponding primary cutting element, where the plurality of primary cutting elements include cutting elements having a first non-planar shape and the plurality of backup cutting elements include cutting elements having a second, different non-planar shape.

摘要翻译： 切割工具可以包括工具主体; 从工具主体延伸的多个叶片; 并且多个主切割元件和多个备用切割元件位于多个叶片中的每一个上，所述备份切割元件位于与作为相应的主切割元件的工具主体的轴线之间并且处于与所述工具主体的轴线大致相同的径向距离处， 其中所述多个主切割元件包括具有第一非平面形状的切割元件，并且所述多个备用切割元件包括具有第二不同非平面形状的切割元件。

公开(公告)号：US20130220706A1

公开(公告)日：2013-08-29

申请号：US13804014

申请日：2013-03-14

申请人： Smith International, Inc.

发明人： Michael Azar ,  Bala Durairajan ,  Madapusi K. Keshavan

IPC分类号： E21B10/567

摘要： A drill bit for drilling a borehole in earth formations may include a bit body having a bit axis and a bit face; a plurality of blades extending radially along the bit face; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least one cutter comprising a substrate and a diamond table having a substantially planar cutting face; and at least two non-planar cutting elements comprising a substrate and a diamond layer having a non-planar cutting end, wherein in a rotated view of the plurality of cutting elements into a single plane, the at least one cutter is located a radial position from the bit axis that is intermediate the radial positions of the at least two non-planar cutting elements.

摘要翻译： 用于在地层中钻孔的钻头可以包括具有钻头轴线和钻头面的钻头体; 沿着钻头面径向延伸的多个刀片; 以及设置在所述多个刀片上的多个切割元件，所述多个切割元件包括：至少一个切割器，包括基底和具有基本上平面的切割面的金刚石台; 以及至少两个非平面切割元件，其包括基底和具有非平面切割端的金刚石层，其中在所述多个切割元件转动成单个平面的旋转视图中，所述至少一个切割器位于径向位置 从位于所述至少两个非平面切割元件的径向位置之间的钻头轴线。