公开(公告)号：US20140013671A1

公开(公告)日：2014-01-16

申请号：US14028328

申请日：2013-09-16

Applicant: SMITH INTERNATIONAL, INC.

Inventor： J. DANIEL BELNAP ,  GEORGIY VORONIN ,  FENG YU ,  PETER T. CARIVEAU ,  YOUHE ZHANG ,  YUELIN SHEN ,  GUODONG ZHAN

IPC: B24D3/10

CPC classification number: E21B10/55 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B22F2003/244 ,  B22F2005/001 ,  B22F2998/10 ,  B22F2999/00 ,  B24D3/10 ,  C22C26/00 ,  C22C2026/006 ,  E21B10/567 ,  E21B10/5735 ,  B22F7/062 ,  B22F3/14 ,  B22F2207/01 ,  B22F2207/13 ,  B22F2207/17

Abstract: The present disclosure relates to cutting elements incorporating polycrystalline diamond bodies used for subterranean drilling applications, and more particularly, to polycrystalline diamond bodies having a high diamond content which are configured to provide improved properties of thermal stability and wear resistance, while maintaining a desired degree of impact resistance, when compared to prior polycrystalline diamond bodies. In various embodiments disclosed herein, a cutting element with high diamond content includes a modified PCD structure and/or a modified interface (between the PCD body and a substrate), to provide superior performance.

公开(公告)号：US20130146367A1

公开(公告)日：2013-06-13

申请号：US13677105

申请日：2012-11-14

Applicant: Smith International, Inc.

Inventor： YOUHE ZHANG ,  YUELIN SHEN ,  YURI BURHAN ,  KJELL HAUGVALDSTAD

IPC: E21B10/50 ,  E21B10/08

CPC classification number: E21B10/50 ,  E21B10/08 ,  E21B10/55 ,  E21B10/62 ,  E21B10/627 ,  E21B10/633

Abstract: A cutting structure may include an outer support element; and an inner rotatable cutting element comprising a cutting surface at its upper end; wherein the inner rotatable cutting element comprises at least one line contact along a circumferential side surface thereof and/or at least one point contact at a bottom face thereof.

Abstract translation: 切割结构可以包括外部支撑元件; 以及内部可旋转切割元件，其在其上端包括切割表面; 其中所述内部可旋转切割元件包括沿着其圆周侧表面的至少一个线接触件和/或其底面处的至少一个接点。

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。

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。

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。