公开(公告)号：US20080179102A1

公开(公告)日：2008-07-31

申请号：US12009408

申请日：2008-01-16

申请人： Joshua Gatell ,  Amardeep Singh ,  Scott D. McDonough ,  Mohammed Boudrare ,  Bryce A. Baker ,  Allen D. White ,  Brandon M. Moss ,  Parveen K. Chandila

发明人： Joshua Gatell ,  Amardeep Singh ,  Scott D. McDonough ,  Mohammed Boudrare ,  Bryce A. Baker ,  Allen D. White ,  Brandon M. Moss ,  Parveen K. Chandila

IPC分类号： E21B10/08

CPC分类号： E21B10/16

摘要： A roller cone drill bit for drilling earth formation may include rows arranged on each of the cones such that when viewed in routed profile, cutting element profiles partially overlap with other cutting element profiles and at least the first three interior rows adjacent a gage row each have a cutting element count selected from the group of 16, 18, 21 and 26 cutting elements.

摘要翻译： 用于钻孔地层的辊锥钻头可以包括布置在每个锥体上的排，使得当在路线轮廓中观察时，切割元件轮廓部分地与其他切割元件轮廓重叠，并且至少与量具行相邻的前三个内部行各具有 选自16,18,21和26个切割元件的切割元件数。

公开(公告)号：US07377332B2

公开(公告)日：2008-05-27

申请号：US11692013

申请日：2007-03-27

申请人： Amardeep Singh ,  Scott D. McDonough

发明人： Amardeep Singh ,  Scott D. McDonough

IPC分类号： E21B10/20

CPC分类号： E21B10/08 ,  E21B10/16 ,  E21B10/52

摘要： A method for designing a roller cone drill bit having a plurality of cutting elements in a row. The method includes defining a pitch pattern for the plurality of cutting elements such that a first group of adjacent cutting elements are arranged in a first pitch and a second group of adjacent cutting elements are arranged in a second pitch in the row; evaluating the pitch pattern of the plurality of cutting elements in the row; and modifying at least one of the plurality of cutting elements, based on the evaluating the pitch pattern of the plurality of cutting elements.

摘要翻译： 一种用于设计具有一排中的多个切割元件的滚子锥形钻头的方法。 该方法包括限定多个切割元件的间距图案，使得第一组相邻切割元件以第一间距布置，并且第二组相邻切割元件以该列中的第二间距排列; 评估行中的多个切割元件的俯仰图案; 以及基于评估所述多个切割元件的俯仰图案来修改所述多个切割元件中的至少一个。

公开(公告)号：US07234549B2

公开(公告)日：2007-06-26

申请号：US10853869

申请日：2004-05-26

申请人： Scott D. McDonough ,  Amardeep Singh ,  Daniel W. Brietzke

发明人： Scott D. McDonough ,  Amardeep Singh ,  Daniel W. Brietzke

IPC分类号： E21B10/16

CPC分类号： E21B10/16 ,  E21B10/00 ,  E21B10/52

摘要： A method for evaluating a cutting arrangement for a drill bit includes selecting a cutting element arrangement for the drill bit and calculating a score for the cutting arrangement. This method may be used to evaluate the cutting efficiency of various drill bit designs. In one example, this method is used to calculate a score for an arrangement based on a comparison of an expected bottomhole pattern for the arrangement with a preferred bottomhole pattern. The use of this method has lead to roller cone drill bit designs that exhibit reduce tracking over prior art bits.

摘要翻译： 用于评估钻头的切割装置的方法包括：选择用于钻头的切割元件布置并计算切割布置的得分。 该方法可用于评估各种钻头设计的切割效率。 在一个示例中，该方法用于基于用于布置的预期井底图案与优选底孔图案的比较来计算布置的得分。 这种方法的使用导致了滚筒锥钻钻头设计，显示出比现有技术钻头减少的跟踪。

公开(公告)号：US07195078B2

公开(公告)日：2007-03-27

申请号：US10886474

申请日：2004-07-07

申请人： Amardeep Singh ,  Scott D. McDonough

发明人： Amardeep Singh ,  Scott D. McDonough

IPC分类号： E21B10/20

CPC分类号： E21B10/08 ,  E21B10/16 ,  E21B10/52

摘要： A method for designing a roller cone drill bit having a plurality of cutting elements in a row. The method includes defining a pitch pattern for the plurality of cutting elements such that a first group of adjacent cutting elements are arranged in a first pitch and a second group of adjacent cutting elements are arranged in a second pitch in the row; evaluating the pitch pattern of the plurality of cutting elements in the row; and modifying at least one of the plurality of cutting elements, based on the evaluating the pitch pattern of the plurality of cutting elements.

摘要翻译： 一种用于设计具有一排中的多个切割元件的滚子锥形钻头的方法。 该方法包括限定多个切割元件的间距图案，使得第一组相邻切割元件以第一间距布置，并且第二组相邻切割元件以该列中的第二间距排列; 评估行中的多个切割元件的俯仰图案; 以及基于评估所述多个切割元件的俯仰图案来修改所述多个切割元件中的至少一个。

公开(公告)号：US08991523B2

公开(公告)日：2015-03-31

申请号：US13152626

申请日：2011-06-03

申请人： Yuelin Shen ,  Youhe Zhang ,  Yuri Burhan ,  Michael A. Siracki ,  Mahavir Nagaraj ,  Bala Durairajan ,  Scott D. McDonough ,  Peter Thomas Cariveau

发明人： Yuelin Shen ,  Youhe Zhang ,  Yuri Burhan ,  Michael A. Siracki ,  Mahavir Nagaraj ,  Bala Durairajan ,  Scott D. McDonough ,  Peter Thomas Cariveau

IPC分类号： E21B10/08 ,  E21B10/633 ,  B23P15/28

CPC分类号： E21B10/633 ,  B23P15/28

摘要： A drill bit includes a bit body, a plurality of blades extending radially from the bit body, a plurality of cutter pockets disposed on the plurality of blades, at least one rolling cutter disposed in one of the cutter pockets, wherein each rolling cutter has a substrate, a cutting face, a cutting edge, and a side surface, and at least one blocker positioned adjacent to each of the at least one rolling cutters on a leading face of the blade, wherein each blocker has a retention end and an attachment end. The retention end of each blocker is positioned adjacent to a portion of the cutting face of each rolling cutter to retain the rolling cutter in the cutter pocket and the attachment end is attached to a portion of the blade.

摘要翻译： 钻头包括钻头体，从钻头体径向延伸的多个刀片，设置在多个刀片上的多个切割器凹槽，设置在其中一个切割器凹穴中的至少一个滚刀，其中每个滚切刀具有 基板，切割面，切割边缘和侧表面;以及至少一个阻挡件，其邻近于所述刀片的前表面上的所述至少一个滚动切割器中的每一个定位，其中每个阻挡件具有保持端和附接端 。 每个阻塞器的保持端定位成与每个滚动切割器的切割面的一部分相邻，以将滚动切割器保持在切割器凹槽中，并且附接端附接到叶片的一部分。

公开(公告)号：US20090065261A1

公开(公告)日：2009-03-12

申请号：US12116119

申请日：2008-05-06

申请人： Alan W. Lockstedt ,  Gary R. Portwood ,  Scott D. McDonough

发明人： Alan W. Lockstedt ,  Gary R. Portwood ,  Scott D. McDonough

IPC分类号： E21B10/16

CPC分类号： E21B10/5673 ,  E21B10/16 ,  E21B10/52

摘要： A rolling cone drill bit is provided that has gage inserts on the first row from the bit axis to cut to full gage diameter that have a cutting portion enhanced with a layer of super abrasive material. The gage cutting surface has a center axis that is canted to be more normal to the gave curve such that its point of contact at gage is away from the thinner portion of the layer of super abrasive material.

摘要翻译： 提供了一种滚动锥钻头，其具有从钻头轴线到第一排的量具插入件，以切割成全量规直径，其具有通过一层超级研磨材料增强的切割部分。 计量切割表面具有倾斜的中心轴线，以使其与给定曲线更正交，使得其量具上的接触点远离超级研磨材料层的较薄部分。

公开(公告)号：US07401668B2

公开(公告)日：2008-07-22

申请号：US11501472

申请日：2006-08-09

申请人： George Bodo Witman ,  Peter Wilson ,  Scott D. McDonough ,  Michael A. Siracki

发明人： George Bodo Witman ,  Peter Wilson ,  Scott D. McDonough ,  Michael A. Siracki

IPC分类号： E21B10/16

CPC分类号： E21B10/52 ,  E21B10/08 ,  E21B17/1092

摘要： A roller cone drill bit is disclosed which includes a bit body adapted to be coupled to a drill string. A bearing journal depends from the bit body. A single roller cone is rotatably attached to the bearing journal. The roller cone has a plurality of inserts disposed at selected positions about the cone. The journal defines a rotation angle with respect to an axis of rotation of the bit such that the roller cone includes a wall contact zone and a bottom contact zone. At least one of the inserts disposed in the wall contact zone has an extension portion terminating in a substantially planar upper surface.

摘要翻译： 公开了一种滚子锥钻头，其包括适于联接到钻柱的钻头体。 轴承日志取决于位体。 单个滚子锥体可旋转地附接到轴承轴颈。 辊锥体具有多个插入件，其设置在围绕锥体的选定位置处。 轴颈限定相对于钻头的旋转轴线的旋转角度，使得滚子锥体包括壁接触区域和底部接触区域。 布置在壁接触区域中的插入件中的至少一个具有终止于基本平坦的上表面的延伸部分。

公开(公告)号：US07367413B2

公开(公告)日：2008-05-06

申请号：US11494992

申请日：2006-07-28

申请人： Alan W. Lockstedt ,  Gary R. Portwood ,  Scott D. McDonough

发明人： Alan W. Lockstedt ,  Gary R. Portwood ,  Scott D. McDonough

IPC分类号： E21B10/36

CPC分类号： E21B10/5673 ,  E21B10/16 ,  E21B10/52

摘要： A rolling cone drill bit is provided that has gage inserts on the first row from the bit axis to cut to full gage diameter that have a cutting portion enhanced with a layer of super abrasive material. The gage cutting surface has a center axis that is canted to be more normal to the gage curve such that its point of contact at gage is away from the thinner portion of the layer of super abrasive material.

摘要翻译： 提供了一种滚动锥钻头，其具有从钻头轴线到第一排的量具插入件，以切割成全量规直径，其具有通过一层超级研磨材料增强的切割部分。 计量切割表面具有倾斜的中心轴线，以使其与量规曲线更正交，使得其量规上的接触点远离超级研磨材料层的较薄部分。

公开(公告)号：US07743857B2

公开(公告)日：2010-06-29

申请号：US12116119

申请日：2008-05-06

申请人： Alan W. Lockstedt ,  Gary R. Portwood ,  Scott D. McDonough

发明人： Alan W. Lockstedt ,  Gary R. Portwood ,  Scott D. McDonough

IPC分类号： E21B10/16

CPC分类号： E21B10/5673 ,  E21B10/16 ,  E21B10/52

摘要： A rolling cone drill bit is provided that has gage inserts on the first row from the bit axis to cut to full gage diameter that have a cutting portion enhanced with a layer of super abrasive material. The gage cutting surface has a center axis that is canted to be more normal to the gave curve such that its point of contact at gage is away from the thinner portion of the layer of super abrasive material.

摘要翻译： 提供了一种滚动锥钻头，其具有从钻头轴线到第一排的量具插入件，以切割成全量规直径，其具有通过一层超级研磨材料增强的切割部分。 计量切割表面具有倾斜的中心轴线，以使其与给定曲线更正交，使得其量具上的接触点远离超级研磨材料层的较薄部分。

公开(公告)号：US07100711B2

公开(公告)日：2006-09-05

申请号：US10407922

申请日：2003-04-04

申请人： George B. Witman ,  Peter Wilson ,  Scott D. McDonough ,  Michael A. Siracki

发明人： George B. Witman ,  Peter Wilson ,  Scott D. McDonough ,  Michael A. Siracki

IPC分类号： E21B10/16

CPC分类号： E21B10/52 ,  E21B10/08 ,  E21B17/1092

摘要： A roller cone drill bit is disclosed which includes a bit body adapted to be coupled to a drill string. A bearing journal depends from the bit body. A single roller cone is rotatably attached to the bearing journal. The roller cone has a plurality of inserts disposed at selected positions about the cone. The journal defines a rotation angle with respect to an axis of rotation of the bit such that the roller cone includes a wall contact zone and a bottom contact zone. At least one of the inserts disposed in the wall contact zone has an extension portion terminating in a substantially planar upper surface.