公开(公告)号：US20060207802A1

公开(公告)日：2006-09-21

申请号：US11350620

申请日：2006-02-08

申请人： Youhe Zhang ,  Yuelin Shen ,  Madapusi Keshavan ,  Mike Azar

发明人： Youhe Zhang ,  Yuelin Shen ,  Madapusi Keshavan ,  Mike Azar

IPC分类号： E21B10/36

CPC分类号： E21B10/5676 ,  E21B10/5735

摘要： Cutting elements are provided having substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits incorporating such cutting elements are also provided.

公开(公告)号：US20060266559A1

公开(公告)日：2006-11-30

申请号：US11140615

申请日：2005-05-26

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

发明人： Madapusi 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.

公开(公告)号：US20070254817A1

公开(公告)日：2007-11-01

申请号：US11415385

申请日：2006-05-01

申请人： Anthony Griffo ,  Madapusi Keshavan

发明人： Anthony Griffo ,  Madapusi Keshavan

IPC分类号： C10M135/18

CPC分类号： C10M125/02 ,  C10M171/06 ,  C10M2201/041 ,  C10M2201/062 ,  C10M2201/066 ,  C10N2210/05 ,  C10N2220/082

摘要： A lubricant for a drill bit that includes from about 0.1 to about 10 weight percent of at least one nanomaterial, from about 5 to 40 weight percent of a thickener, and a basestock is disclosed.

摘要翻译： 公开了一种用于钻头的润滑剂，其包含约0.1至约10重量％的至少一种纳米材料，约5至40重量％的增稠剂和基础物料。

公开(公告)号：US20060081402A1

公开(公告)日：2006-04-20

申请号：US10967651

申请日：2004-10-18

申请人： Greg Lockwood ,  Thomas Oldham ,  Anthony Griffo ,  Madapusi Keshavan ,  David Conroy

发明人： Greg Lockwood ,  Thomas Oldham ,  Anthony Griffo ,  Madapusi Keshavan ,  David Conroy

IPC分类号： E21B10/36

CPC分类号： C22C26/00 ,  B22F2005/001 ,  C22C2026/006 ,  E21B10/46 ,  Y10T29/49885

摘要： An insert for a drill bit that includes diamond particles disposed in a matrix material, wherein the diamond particles have a contiguity of 15% or less is disclosed. A method of forming a diamond-impregnated cutting structure, that includes loading a plurality of substantially uniformly coated diamond particles into a mold cavity, pre-compacting the substantially uniformly coated diamond particles using a cold-press cycle, and heating the compacted, substantially uniformly coated diamond particles with a matrix material to form the diamond impregnated cutting structure is also disclosed.

摘要翻译： 一种用于钻头的插入件，其包括设置在基体材料中的金刚石颗粒，其中所述金刚石颗粒的接缝度为15％以下。 一种形成金刚石浸渍的切割结构的方法，其包括将多个基本上均匀涂覆的金刚石颗粒加载到模腔中，使用冷压循环对大致均匀涂覆的金刚石颗粒进行预压实，并加热压实的基本均匀的 还公开了具有基质材料以形成金刚石浸渍切割结构的涂覆金刚石颗粒。

公开(公告)号：US20070119631A1

公开(公告)日：2007-05-31

申请号：US11657198

申请日：2007-01-23

申请人： Ronald Eyre ,  Madapusi Keshavan ,  David Truax

发明人： Ronald Eyre ,  Madapusi Keshavan ,  David Truax

IPC分类号： E21B10/36

CPC分类号： E21B10/5735

摘要： The present invention provides a cutting element having a cylindrical body having a canted end face on which is formed an ultra hard material layer and to a bit incorporating such cutting element. One or a plurality of transition layers may be provided between the ultra hard material layer and the cutting element body.

摘要翻译： 本发明提供一种切割元件，该切割元件具有一个具有倾斜端面的圆柱体，其上形成有超硬材料层，以及一个包含该切割元件的钻头。 可以在超硬材料层和切割元件主体之间设置一个或多个过渡层。

公开(公告)号：US20070029116A1

公开(公告)日：2007-02-08

申请号：US11449523

申请日：2006-06-07

申请人： Madapusi Keshavan

发明人： Madapusi Keshavan

IPC分类号： E21B10/46

CPC分类号： E21B10/567 ,  C04B35/5831 ,  C04B2235/3804 ,  C04B2235/3813 ,  C04B2235/3843 ,  C04B2235/3856 ,  C04B2235/3865 ,  C04B2235/3886 ,  C04B2235/786

摘要： High energy sheer cutting elements and bits incorporating the same are provided. The cutting elements have at least a portion of their cutting layers which will be exposed to high temperatures during drilling formed from a PCBN material capable of operating at temperatures of at least 1000° C.

摘要翻译： 提供了高能切割元件和并入其的钻头。 切割元件具有至少一部分切割层，其在由能够在至少1000℃的温度下操作的PCBN材料形成的钻孔期间将暴露于高温。

公开(公告)号：US20070023206A1

公开(公告)日：2007-02-01

申请号：US11189425

申请日：2005-07-26

申请人： Madapusi Keshavan ,  Anthony Griffo

发明人： Madapusi Keshavan ,  Anthony Griffo

IPC分类号： E21B10/16

CPC分类号： E21B10/16 ,  E21B10/567 ,  E21B17/1092

摘要： A roller cone drill bit for drilling earth formations includes a bit body having at least one roller cone rotably attached to the bit body and a plurality of cutting elements disposed on the at least one roller cone in a plurality of rows arranged circumferentially around the at least one roller cone, wherein at least one cutting element in the gage row, the heel row, or a surface of the at least one roller cone bounded by the gage and heel rows comprises thermally stable polycrystalline diamond or a thermally stable polycrystalline diamond composite. The at least one cutting element may be a TSD insert or a TSD composite insert and may be formed by brazing, sintering, or bonding by other technologies known in the art a thermally stable polycrystalline diamond table to a substrate. The interface between the diamond table and the substrate may be non-planar. A roller cone drill bit includes a bit body, at least one roller cone rotably attached to the bit body, and a plurality of cutting elements disposed on the at least one roller cone, where at least one of the plurality of cutting elements comprises thermally stable polycrystalline diamond or a thermally stable polycrystalline diamond composite and a cutting surface, wherein at least a portion of the cutting surface is contoured.

摘要翻译： 一种用于钻探地层的滚子锥钻头包括一个钻头体，该钻头体具有可旋转地连接到钻头体上的至少一个滚子锥体，以及设置在至少一个滚子锥体上的多个切割元件， 一个滚子锥体，其中，所述量规行中的至少一个切割元件，所述后跟行或由所述计量和所述后跟行限定的所述至少一个滚子圆锥的表面包括热稳定的多晶金刚石或热稳定的多晶金刚石复合材料。 至少一个切割元件可以是TSD插入件或TSD复合插入件，并且可以通过本领域已知的其它技术将热稳定的多晶金刚石台面钎焊，烧结或粘合形成到基底上。 金刚石台和基板之间的界面可以是非平面的。 滚子锥形钻头包括钻头体，可旋转地附接到钻头体的至少一个滚子锥体和设置在至少一个滚子锥体上的多个切割元件，其中多个切割元件中的至少一个包括热稳定的 多晶金刚石或热稳定多晶金刚石复合材料和切割表面，其中切割表面的至少一部分是轮廓。

公开(公告)号：US20060191723A1

公开(公告)日：2006-08-31

申请号：US11361079

申请日：2006-02-22

申请人： Madapusi Keshavan

发明人： Madapusi Keshavan

IPC分类号： E21B10/36

CPC分类号： B22F7/06 ,  B22F2005/001 ,  B22F2998/00 ,  C22C26/00 ,  E21B10/567 ,  E21B10/5676 ,  E21B10/5735 ,  B22F2207/00

摘要： A cutting element is provided including a substrate and a TSP material layer over the substrate. The TSP material layer includes at least a property having a value that varies through the layer.

摘要翻译： 提供了一种切割元件，包括衬底和衬底上的TSP材料层。 TSP材料层至少包括具有通过层变化的值的特性。

公开(公告)号：US20060165993A1

公开(公告)日：2006-07-27

申请号：US11044651

申请日：2005-01-27

申请人： Madapusi Keshavan

发明人： Madapusi Keshavan

IPC分类号： B24D18/00 ,  C23C16/26 ,  B05D1/36

CPC分类号： C23C30/005 ,  B24D18/0009 ,  E21B10/573 ,  Y10T428/24942 ,  Y10T428/30

摘要： A polycrystalline diamond compact cutter that includes a thermally stable polycrystalline diamond layer, a carbide substrate, and a polycrystalline cubic boron nitride layer interposed between the thermally stable polycrystalline diamond layer and the carbide substrate is disclosed. A method of forming a polycrystalline diamond compact cutter that includes the steps of providing a carbide substrate, disposing a polycrystalline cubic boron nitride layer on the carbide substrate, disposing a polycrystalline diamond layer on the polycrystalline cubic boron nitride layer, and treating at least a portion of the polycrystalline diamond layer to form a thermally stable polycrystalline diamond layer is also disclosed.

摘要翻译： 公开了一种包括热稳定多晶金刚石层，碳化物衬底和插入在热稳定多晶金刚石层和碳化物衬底之间的多晶立方氮化硼层的多晶金刚石致密切割机。 一种形成多晶金刚石致密切割机的方法，包括以下步骤：提供碳化物基体，在所述碳化物基体上设置多晶立方氮化硼层，在所述多晶立方氮化硼层上设置多晶金刚石层，以及处理至少一部分 的多晶金刚石层以形成热稳定的多晶金刚石层。

公开(公告)号：US20080128951A1

公开(公告)日：2008-06-05

申请号：US12021131

申请日：2008-01-28

申请人： Greg Lockwood ,  Thomas Oldham ,  Anthony Griffo ,  Madapusi Keshavan ,  David Conroy

发明人： Greg Lockwood ,  Thomas Oldham ,  Anthony Griffo ,  Madapusi Keshavan ,  David Conroy

IPC分类号： B22F3/12 ,  E21B10/46

CPC分类号： C22C26/00 ,  B22F2005/001 ,  C22C2026/006 ,  E21B10/46 ,  Y10T29/49885

摘要： An insert for a drill bit that includes diamond particles disposed in a matrix material, wherein the diamond particles have a contiguity of 15% or less is disclosed. A method of forming a diamond-impregnated cutting structure, that includes loading a plurality of substantially uniformly coated diamond particles into a mold cavity, pre-compacting the substantially uniformly coated diamond particles using a cold-press cycle, and heating the compacted, substantially uniformly coated diamond particles with a matrix material to form the diamond impregnated cutting structure is also disclosed.

摘要翻译： 一种用于钻头的插入件，其包括设置在基体材料中的金刚石颗粒，其中所述金刚石颗粒的接缝度为15％以下。 一种形成金刚石浸渍的切割结构的方法，其包括将多个基本上均匀涂覆的金刚石颗粒加载到模腔中，使用冷压循环对大致均匀涂覆的金刚石颗粒进行预压实，并加热压实的基本均匀的 还公开了具有基质材料以形成金刚石浸渍切割结构的涂覆金刚石颗粒。