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    Downhole tools having features for reducing balling and methods of forming such tools
    1.
    发明授权
    Downhole tools having features for reducing balling and methods of forming such tools 有权
    具有用于减少球磨的特征的井下工具以及形成这种工具的方法

    公开(公告)号：US08985244B2

    公开(公告)日：2015-03-24

    申请号：US13006323

    申请日：2011-01-13

    申请人： Suresh G. Patel ,  Chaitanya K. Vempati ,  Steven R. Redford ,  Timothy K. Marvel ,  Bruce Stauffer ,  George I. Butler

    发明人： Suresh G. Patel ,  Chaitanya K. Vempati ,  Steven R. Redford ,  Timothy K. Marvel ,  Bruce Stauffer ,  George I. Butler

    IPC分类号： E21B10/16 ,  E21B10/50 ,  E21B10/46 ,  E21B17/10

    CPC分类号： E21B10/54 ,  B23P6/00 ,  B23P15/28 ,  B23P15/32 ,  E21B10/42 ,  E21B10/46 ,  E21B17/1085 ,  Y10T29/49734 ,  Y10T29/49982

    摘要： Downhole tools are provided with a topographical pattern, and anti-balling material is provided over the topographical pattern. The topographical pattern may be defined by at least one of a plurality of recesses extending into a surface of a body of the tool and a plurality of protrusions protruding from the surface. Downhole tools include an insert disposed within a recess in a body, and the insert comprises an anti-balling material having a composition selected to reduce accumulation of formation cuttings on the tools when the tools are used to form or service a wellbore. Downhole tools include anti-balling material disposed over a porous mass provided over the surfaces of the tools. Methods of forming downhole tools include providing anti-balling material over features on and/or in a surface of a body of a tool. Methods of repairing downhole tools include removing an insert therefrom and disposing a replacement insert therein.

    摘要翻译： 井下工具具有地形图案，并且在地形图案上提供防球材料。 形状图案可以由延伸到工具的主体的表面中的多个凹部中的至少一个和从表面突出的多个突起限定。 井下工具包括设置在主体的凹部内的插入件，并且插入件包括防腐材料，其具有选择的组合，以减少当工具用于形成或维修井眼时工具上的成形切屑积聚。 井下工具包括设置在工具表面上方的多孔质量块上的抗球磨材料。 形成井下工具的方法包括在工具主体的表面上和/或表面上提供抗球磨材料。 修复井下工具的方法包括从其中取出插入件并在其中设置替换插入件。

    Chamfered edge gage cutters and drill bits so equipped
    4.
    发明授权
    Chamfered edge gage cutters and drill bits so equipped 有权
    倒角边缘切割机，钻头如此装备，以及切割机制造方法

    公开(公告)号：US08061456B2

    公开(公告)日：2011-11-22

    申请号：US12198246

    申请日：2008-08-26

    申请人： Suresh G. Patel ,  Danny E. Scott ,  L. Allen Sinor

    发明人： Suresh G. Patel ,  Danny E. Scott ,  L. Allen Sinor

    IPC分类号： E21B10/52

    CPC分类号： E21B10/5673

    摘要： A cutting element for an earth boring bit, may include a PDC layer having a flat on a periphery thereof, the flat terminating longitudinally at an edge spaced from a cutting face of the PDC layer. A chamfer adjacent to the cutting face desirably has a length that exceeds its depth. A cutting element may additionally include a chamfer along the entire circumference, multiple step-wise, radially adjacent chamfers, and multiple circumferentially spaced portions of the uppermost radius of the PDC layer of the cutting element that each includes a chamfer with an associated flat. Additionally, a cutting element may include a flat terminating at a radial edge with the cutting face of a PDC layer.

    摘要翻译： 用于钻孔钻头的切割元件可以包括在其周边具有平坦的PDC层，该平坦部分在与PDC层的切割面间隔开的边缘处纵向延伸。 与切割面相邻的倒角理想地具有超过其深度的长度。 切割元件可以另外包括沿着整个圆周的倒角，多个逐步的，径向相邻的倒角，以及切割元件的PDC层的最上半径的多个周向间隔的部分，每个包括具有相关平面的倒角。 此外，切割元件可以包括在PDC层的切割面的径向边缘终止的平面。

    Nozzle having a spray pattern for use with an earth boring drill bit
    7.
    发明授权
    Nozzle having a spray pattern for use with an earth boring drill bit 有权
    喷嘴具有用于钻孔钻头的喷雾图案

    公开(公告)号：US07770671B2

    公开(公告)日：2010-08-10

    申请号：US12245632

    申请日：2008-10-03

    申请人： Suresh G. Patel

    发明人： Suresh G. Patel

    IPC分类号： E21B10/18

    CPC分类号： E21B10/61

    摘要： An earth boring drill bit having a cleaning nozzle for cleaning cutting elements on the face of the drill bit. A notch is included on the nozzle face for directing an elongated and coherent fluid flow from the nozzle outlet to the cutting element face. The nozzle face may include more than one notch for cleaning elements disposed in locations around the nozzle. The nozzle may be at the ends of a row of cutting elements, or disposed in the middle of a row of cutting elements.

    摘要翻译： 一种钻孔钻头，具有用于清洁钻头表面上的切割元件的清洁喷嘴。 在喷嘴面上包括一个凹口，用于将细长且相干的流体流从喷嘴出口引导到切割元件面。 喷嘴面可以包括多于一个用于清洁设置在喷嘴周围的部件的元件的凹口。 喷嘴可以在一排切割元件的端部处，或者设置在一排切割元件的中间。

    METHODS OF ATTACHING A POLYCRYSTALLINE DIAMOND COMPACT TO A SUBSTRATE AND CUTTING ELEMENTS FORMED USING SUCH METHODS
    9.
    发明申请
    METHODS OF ATTACHING A POLYCRYSTALLINE DIAMOND COMPACT TO A SUBSTRATE AND CUTTING ELEMENTS FORMED USING SUCH METHODS 有权
    将多晶金刚石接合到基板上的方法和使用这种方法形成的切割元件

    公开(公告)号：US20130068539A1

    公开(公告)日：2013-03-21

    申请号：US13617604

    申请日：2012-09-14

    申请人： Chaitanya K. Vempati ,  Suresh G. Patel

    发明人： Chaitanya K. Vempati ,  Suresh G. Patel

    IPC分类号： E21B10/46 ,  B32B37/16 ,  B32B37/12

    CPC分类号： E21B10/567 ,  C22C2204/00 ,  C23C16/042 ,  C23C16/045 ,  C23C16/27 ,  C23C16/32 ,  C23C16/342 ,  C23C16/50 ,  C23C16/56 ,  E21B10/5673 ,  E21B10/5735

    摘要： Methods of attaching a polycrystalline diamond compact (PDC) element to a substrate include maintaining a gap between the PDC element and an adjacent substrate, and at least substantially filling the gap with a deposition process. Methods of forming a cutting element for an earth-boring tool include forming a PDC element by pressing diamond crystals together, forming a substrate including a particulate carbide material and a matrix material, leaving a gap between at least portions of the PDC element and the substrate, masking surfaces of the PDC element and of the substrate that do not face the gap, and forming an adhesion material on surfaces of the PDC element and of the substrate that face the gap. Cutting elements for earth-boring tools include a PDC element attached to a substrate with at least one of diamond, diamond-like carbon, a carbide material, a nitride material, and a cubic boron nitride material.

    摘要翻译： 将多晶金刚石致密体（PDC）元件附接到衬底的方法包括保持PDC元件和相邻衬底之间的间隙，并且至少基本上用沉积工艺填充间隙。 形成用于钻孔工具的切割元件的方法包括通过将金刚石晶体压在一起形成PDC元件，形成包括颗粒碳化物材料和基体材料的基板，在PDC元件和基板的至少部分之间留下间隙 ，PDC元件和不与间隙对置的基板的掩模表面，并且在PDC元件和与该间隙相对的基板的表面上形成粘合材料。 用于钻孔工具的切割元件包括附接到具有金刚石，类金刚石碳，碳化物材料，氮化物材料和立方氮化硼材料中的至少一种的基板上的PDC元件。

    METHODS OF FORMING EARTH BORING TOOLS AND RELATED STRUCTURES
    10.
    发明申请
    METHODS OF FORMING EARTH BORING TOOLS AND RELATED STRUCTURES 有权
    形成地球钻孔工具的方法及相关结构

    公开(公告)号：US20120247840A1

    公开(公告)日：2012-10-04

    申请号：US13075907

    申请日：2011-03-30

    申请人： Chaitanya K. Vempati ,  Suresh G. Patel

    发明人： Chaitanya K. Vempati ,  Suresh G. Patel

    IPC分类号： E21B10/36 ,  B21K5/04

    CPC分类号： B22D19/06 ,  B22D19/0081 ,  B22D19/04 ,  B22D19/14 ,  E21B10/36 ,  E21B10/43 ,  E21B10/56 ,  E21B2010/545

    摘要： Earth-boring tools comprise a body comprising a plurality of radially extending blades. At least one blade of the plurality of radially extending blades comprises a blade support segment integral with the body. A blade frame segment is attached to a rotationally leading portion of the blade support segment. A plurality of cutting elements is attached to the blade frame segment. Methods of forming an earth-boring tool comprise forming a body including a blade support segment of at least one blade. At least one blade frame segment is attached to a rotationally leading portion the support segment of the at least one blade. A plurality of cutting elements is secured to the at least one blade segment.

    摘要翻译： 钻孔工具包括包括多个径向延伸的叶片的主体。 多个径向延伸叶片中的至少一个叶片包括与主体成一体的叶片支撑段。 叶片框架段附接到叶片支撑段的旋转引导部分。 多个切割元件附接到刀片框架段。 形成钻孔工具的方法包括形成包括至少一个叶片的叶片支撑段的主体。 至少一个叶片框架段连接到至少一个叶片的支撑段的旋转引导部分。 多个切割元件被固定到至少一个叶片段。