公开(公告)号：US20090308663A1

公开(公告)日：2009-12-17

申请号：US12417104

申请日：2009-04-02

申请人： Suresh G. Patel ,  Ben L. Kirkpatrick ,  Scott E. Mayer

发明人： Suresh G. Patel ,  Ben L. Kirkpatrick ,  Scott E. Mayer

IPC分类号： E21B10/46 ,  E21B10/54 ,  E21B10/42 ,  E21B10/08 ,  E21B10/50 ,  E21B10/55

CPC分类号： E21B17/1092 ,  E21B10/003

摘要： A rotary drill bit or other drilling tool for drilling or reaming through subterranean formation and comprising a body comprising a distal end and gage areas near a proximal end thereof and comprising longitudinally upward extensions of a plurality of blades or legs. A longitudinally trailing, radially inwardly extending surface is associated with at least some gage pads or legs at the longitudinally trailing ends thereof. Protective structures in the form of superabrasive elements comprising a plurality of thermally stable polycrystalline diamonds, or so-called “TSPs” (thermally stable products) are secured to a trailing surface of at least one gage pad. PDC elements may be employed in combination with the TSPs. Non-diamond structures may also be employed, in lieu of or in conjunction with diamond structures, particularly if drilling of ferrous metal casing components is contemplated.

摘要翻译： 一种用于通过地层钻孔或铰孔的旋转钻头或其他钻孔工具，并且包括主体，所述主体包括位于其近端附近的远端和表面区域，并且包括多个叶片或腿的纵向向上延伸部。 纵向延伸的径向向内延伸的表面与其纵向后端处的至少一些测量垫或腿相关联。 包括多个热稳定多晶金刚石或所谓的“TSP”（热稳定产品）的超级磨料元件形式的保护结构被固定在至少一个量具垫的后表面上。 PDC元件可以与TSP组合使用。 也可以采用非金刚石结构，代替金刚石结构或与金刚石结构结合使用，特别是如果考虑钻孔黑色金属套管部件。

公开(公告)号：US09157283B2

公开(公告)日：2015-10-13

申请号：US13454865

申请日：2012-04-24

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

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

IPC分类号： E21B10/46 ,  E21B10/43 ,  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。

公开(公告)号：US09068408B2

公开(公告)日：2015-06-30

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： E21B10/43

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。

公开(公告)号：US08887839B2

公开(公告)日：2014-11-18

申请号：US12817411

申请日：2010-06-17

申请人： Chaitanya K. Vempati ,  Jack Thomas Oldham ,  Edwin R Reek ,  Danielle M. Fuselier ,  Suresh G. Patel ,  Robert Laing

发明人： Chaitanya K. Vempati ,  Jack Thomas Oldham ,  Edwin R Reek ,  Danielle M. Fuselier ,  Suresh G. Patel ,  Robert Laing

IPC分类号： E21B10/36 ,  E21B10/43

CPC分类号： E21B10/43

摘要： A drill bit for drilling subterranean formations comprising a drill bit body including a group of primary cutting elements comprising a first primary cutting element and a second primary cutting element radially spaced apart from each other along a first radial axis. The drill bit body further including a group of backup cutting elements comprising a first backup cutting element in a secondary cutting position relative to the first primary cutting element and a second backup cutting element in secondary cutting positions relative to the second primary cutting element, wherein the first and second backup cutting elements are radially spaced apart from each other along a second radial axis different than the first radial axis and comprise a difference in cutting characteristic relative to each other of one of a backrake angle and a siderake angle.

摘要翻译： 一种用于钻探地下地层的钻头，包括钻头体，该钻头体包括一组初级切割元件，该组主切割元件包括第一主切割元件和沿着第一径向轴线彼此径向间隔开的第二主切割元件。 所述钻头体还包括一组备用切割元件，所述备用切割元件包括相对于所述第一主切割元件处于次切割位置的第一备用切割元件和相对于所述第二主切割元件的次切割位置的第二备用切割元件，其中， 第一和第二备用切割元件沿着与第一径向轴线不同的第二径向轴线彼此径向间隔开，并且包括相对于彼此之间的反向角和取景角之一的切割特性的差异。

公开(公告)号：US08528661B2

公开(公告)日：2013-09-10

申请号：US12912962

申请日：2010-10-27

申请人： Suresh G. Patel ,  Clifton N. B. Triplett

发明人： Suresh G. Patel ,  Clifton N. B. Triplett

IPC分类号： E21B47/00

CPC分类号： H02K35/04 ,  E21B10/08 ,  E21B41/0085

摘要： A drill bit made according to one embodiment includes a first member including one of a magnet and a coil, and a second member that moves relative to the first member, the second member including the other of the magnet and the coil, wherein the relative motion causes the generation of an electrical charge in the coil.

摘要翻译： 根据一个实施例制造的钻头包括包括磁体和线圈中的一个的第一构件和相对于第一构件移动的第二构件，第二构件包括磁体和线圈中的另一个，其中相对运动 导致在线圈中产生电荷。

公开(公告)号：US08327955B2

公开(公告)日：2012-12-11

申请号：US12493640

申请日：2009-06-29

申请人： Suresh G. Patel

发明人： Suresh G. Patel

IPC分类号： E21B10/46

CPC分类号： E21B10/46 ,  B24D18/00 ,  B24D99/005 ,  E21B10/5673 ,  E21B10/573 ,  Y10T156/10

摘要： A superabrasive cutter including a superabrasive table having a cutting face in non-perpendicular orientation with respect to a longitudinal axis of the cutter. A superabrasive cutter having a cutting face of a superabrasive table in non-parallel orientation to a back surface thereof.

摘要翻译： 一种超级磨料刀具，其包括具有相对于切割器的纵向轴线以非垂直取向的切割面的超级磨料台。 一种超研磨刀具，其具有与其后表面非平行取向的超级磨料台的切割面。

公开(公告)号：US20120125695A1

公开(公告)日：2012-05-24

申请号：US13299914

申请日：2011-11-18

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

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

IPC分类号： E21B10/36 ,  B21K5/04

CPC分类号： E21B10/633 ,  B23K31/025 ,  B23P15/28 ,  B24D3/06 ,  B28B23/005 ,  E21B10/006 ,  E21B10/62 ,  E21B10/627 ,  E21B12/02 ,  E21B2010/624 ,  Y10T29/49734 ,  Y10T29/49741 ,  Y10T29/49742 ,  Y10T29/49744 ,  Y10T29/49746

摘要： Earth-boring tools comprise a body and one or more replaceable cutting structures attached to the body at a face region of the body. Each replaceable cutting structure comprises an attachment member and a cutting portion configured to engage an underlying earth formation. Methods of forming an earth-boring tool comprise attaching one or more cutting elements to a replaceable cutting structure; positioning the replaceable cutting structure proximate a region of a body of an earth-boring tool that is susceptible to at least one of localized wear and localized impact damage; and attaching the replaceable cutting structure to the body. Methods of repairing an earth-boring tool comprise bringing a replaceable cutting structure proximate at least one portion of a body of an earth-boring tool exhibiting at least one of localized wear and localized impact damage; and attaching the replaceable cutting structure to the earth-boring tool at the at least one portion.

摘要翻译： 钻孔工具包括主体和在身体的面部区域处附接到身体的一个或多个可替换的切割结构。 每个可替换的切割结构包括附接构件和被配置为接合下面的地层的切割部分。 形成钻孔工具的方法包括将一个或多个切割元件附接到可替换的切割结构; 将可更换的切割结构定位在易受到局部磨损和局部冲击损伤中的至少一种的磨土工具的主体的区域附近; 以及将所述可替换的切割结构附接到所述主体。 修理钻孔工具的方法包括将可更换的切割结构置于靠近钻孔工具的主体的至少一部分，其具有局部磨损和局部冲击损伤中的至少一种; 以及在所述至少一个部分处将所述可更换切割结构附接到所述钻孔工具。

公开(公告)号：US08127869B2

公开(公告)日：2012-03-06

申请号：US12892168

申请日：2010-09-28

申请人： Chaitanya K. Vempati ,  Jack T. Oldham ,  Suresh G. Patel ,  Danielle M. Fuselier

发明人： Chaitanya K. Vempati ,  Jack T. Oldham ,  Suresh G. Patel ,  Danielle M. Fuselier

IPC分类号： E21B10/36

CPC分类号： E21B10/43

摘要： Earth-boring tools comprise a body having a face at a leading end. A plurality of cutting elements are disposed over the face and configured as a plurality of kerfing pairs comprising two or more cutting elements disposed at substantially the same radial position relative to a bit axis, wherein each of the at least two cutting elements follows substantially the same cutting path when the bit is rotated about its axis. Earth-boring tools are further configured so that a summation of a lateral force generated during drilling by each cutting element of the plurality of cutting elements is directed toward a side of the body.

摘要翻译： 钻孔工具包括在前端具有面部的主体。 多个切割元件设置在所述面上并且被配置为包括相对于钻头轴线布置在基本相同的径向位置处的两个或更多个切割元件的多个切割对，其中所述至少两个切割元件中的每一个基本相同 当钻头绕其轴线旋转时的切割路径。 钻孔工具被进一步构造成使得在钻孔期间由多个切割元件的每个切割元件产生的横向力的总和指向身体的一侧。

公开(公告)号：US20090057031A1

公开(公告)日：2009-03-05

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： E21B10/46

CPC分类号： E21B10/5673

摘要： A cutting element for an earth boring bit, wherein the PDC layer of the cutting element has a flat on a periphery thereof terminating longitudinally at en edge spaced from of the cutting face of the PDC layer. A chamfer adjacent the cutting face desirably has a length that exceeds its depth. Embodiments include a chamfer along the entire circumference of the cutting element, 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. An embodiment including a flat terminating at a radial edge with the cutting face of a PDC layer is also disclosed, as are drill bits incorporating embodiments of the cutting elements of the invention and a method of forming the cutting elements.

摘要翻译： 一种用于钻孔钻头的切割元件，其中切割元件的PDC层在其周边上具有在PDC层的切割面间隔开的边缘处纵向延伸的平面。 与切割面相邻的倒角希望具有超过其深度的长度。 实施例包括沿着切割元件的整个圆周的倒角，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。 还公开了一种包括具有PDC层的切割面的径向边缘处的平坦的实施例，以及结合本发明的切割元件的实施例的钻头以及形成切割元件的方法。

公开(公告)号：US20080164071A1

公开(公告)日：2008-07-10

申请号：US11958082

申请日：2007-12-17

申请人： Suresh G. Patel ,  Mathews George ,  Richard J. McClellan ,  Paul E. Pastusek ,  Innocent R. Rugashoborola ,  Nicholas J. Lyons

发明人： Suresh G. Patel ,  Mathews George ,  Richard J. McClellan ,  Paul E. Pastusek ,  Innocent R. Rugashoborola ,  Nicholas J. Lyons

IPC分类号： E21B10/46 ,  E21B10/36

CPC分类号： E21B10/567

摘要： A cutting element for use in drilling subterranean formations. The cutting element includes a superabrasive table mounted to a supporting substrate. The superabrasive table includes a two-dimensional cutting face having a cutting edge along at least a portion of its periphery, and a surface comprising a chamfer extending forwardly and inwardly from proximate a peripheral cutting edge at a first acute angle of orientation of greater than about 45° with respect to the longitudinal axis of the cutting element, and to no greater than a selected depth. The chamfer may be arcuate or planar, and of a dimension sufficient to ensure that a wear flat generated during use of the cutting element remains outside the inner boundary of the chamfer within the chamfer envelope, and small enough to maintain aggressive cutting characteristics for the cutter. Drill bits and drilling tools bearing the cutting elements are also disclosed.

摘要翻译： 用于钻探地下地层的切割元件。 切割元件包括安装到支撑基底的超级磨料台。 超研磨台包括具有沿其周边的至少一部分的切割边缘的二维切割面，以及包括倒角的表面，该倒角从邻近外围切割边缘向前和向内延伸，第一锐角取向大于约 相对于切割元件的纵向轴线为45°，并且不大于所选择的深度。 倒角可以是弓形的或平面的，并且具有足以确保在使用切割元件期间产生的磨损平面保留在倒角外壳内的倒角的内边界之外的尺寸，并且足够小以保持切割器的侵蚀性切割特性 。 还公开了具有切割元件的钻头和钻具。