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1. 发明授权

US07100711B2 Single cone rock bit having inserts adapted to maintain hole gage during drilling 有权
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.

2. 发明授权

US07690446B2 Single cone rock bit having inserts adapted to maintain hole gage during drilling 失效
标题翻译：单锥岩石钻头具有适于在钻孔期间保持孔规的插入件
公开(公告)号：US07690446B2
公开(公告)日：2010-04-06
申请号：US12027194
申请日：2008-02-06
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.
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。

3. 发明申请

US20080121435A1 SINGLE CONE ROCK BIT HAVING INSERTS ADAPTED TO MAINTAIN HOLE GAGE DURING DRILLING 失效
标题翻译：钻孔时适用于保持井盖的单根锥形钻头
公开(公告)号：US20080121435A1
公开(公告)日：2008-05-29
申请号：US12027194
申请日：2008-02-06
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： E21B10/22
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。

4. 发明授权

US07401668B2 Single cone rock bit having inserts adapted to maintain hole gage during drilling 失效
标题翻译：单锥岩石钻头具有适于在钻孔期间保持孔规的插入件
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。

5. 发明授权

US06719073B2 Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit balling 失效
标题翻译：具有切割结构的单锥形岩石钻头适于改善孔清洁，并减少跟踪和钻头加工
公开(公告)号：US06719073B2
公开(公告)日：2004-04-13
申请号：US10152498
申请日：2002-05-21
申请人： Ying Xiang , George B. Witman, IV , Michael A. Siracki
发明人： Ying Xiang , George B. Witman, IV , Michael A. Siracki
IPC分类号： E21B1014
CPC分类号： E21B17/1092 , E21B10/16
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 depending from the bit body and a single roller cone rotatably attached to the journal. The roller cone has a plurality of inserts disposed thereon. In one aspect, the inserts have an extension length of at least 0.6 inches. A roller cone drill bit is disclosed, including a bit body, a bearing journal depending from the bit body, and a single roller cone rotatably attached to the journal. The roller cone has a plurality of inserts disposed thereon. In another aspect, the inserts are arranged such that at most about 20 percent of the inserts are crossed substantially at centerlines thereof by any single plane which contains the axis of the cone axis 10 and which crosses at least two of the inserts.
摘要翻译：公开了一种辊锥钻头，其包括适于联接到钻柱的钻头体，从钻头体悬垂的轴承轴颈和可旋转地附接到轴颈的单个滚子锥体。辊锥体具有设置在其上的多个插入件。在一个方面，插入件具有至少0.6英寸的延伸长度。公开了一种滚子锥钻头，其包括钻头体，从钻头体取出的轴承轴颈和可旋转地附接到轴颈的单个滚子锥体。辊锥体具有设置在其上的多个插入件。在另一方面，插入件被布置成使得至多约20％的插入件通过包含锥形轴线10的轴线并且穿过至少两个插入件的任何单个平面基本上在其中心线处交叉。

6. 发明授权

US5421424A Bowed out chisel insert for rock bits 失效
标题翻译：凿出钻头的凿子插入物
公开(公告)号：US5421424A
公开(公告)日：1995-06-06
申请号：US257592
申请日：1994-06-09
申请人： Gary Portwood , James C. Minikus , Scott D. McDonough , Michael A. Siracki
发明人： Gary Portwood , James C. Minikus , Scott D. McDonough , Michael A. Siracki
IPC分类号： E21B10/16 , E21B10/52
CPC分类号： E21B10/16 , E21B10/52
摘要： A chisel type insert is disclosed having a contoured surface in which the vertical lines located on the surface are bowed outwardly in a convex manner thereby eliminating blend radii from the cutting tip and the high stress concentrations associated therewith.
摘要翻译：公开了一种凿型插入件，其具有轮廓表面，其中位于表面上的垂直线以凸形的方式向外弯曲，从而消除了来自切割尖端的混合半径以及与其相关联的高应力集中。

7. 发明申请

US20110297454A1 ROLLING CUTTER ASSEMBLED DIRECTLY TO THE BIT POCKETS 有权
标题翻译：滚动切割机直接组装到位口袋
公开(公告)号：US20110297454A1
公开(公告)日：2011-12-08
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： E21B10/36 , B23P15/28
CPC分类号： E21B10/633 , B23P15/28
摘要： A drill bit having 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 is disclosed. 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：一种具有钻头体的钻头，从钻头体径向延伸的多个刀片，设置在所述多个刀片上的多个切割器凹槽，设置在所述切割器凹穴之一中的至少一个滚切刀具，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被披露。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。

8. 发明授权

US5351770A Ultra hard insert cutters for heel row rotary cone rock bit applications 失效
标题翻译：超硬刀片用于后跟行旋转锥形钻头应用
公开(公告)号：US5351770A
公开(公告)日：1994-10-04
申请号：US78123
申请日：1993-06-15
申请人： Chris E. Cawthorne , Scott D. McDonough , Gary Portwood , Michael A. Siracki
发明人： Chris E. Cawthorne , Scott D. McDonough , Gary Portwood , Michael A. Siracki
IPC分类号： E21B10/16 , E21B10/52 , E21B10/56 , E21B10/567
CPC分类号： E21B10/5673 , E21B10/16 , E21B10/52
摘要： A rotary cone rock bit for drilling boreholes in an earthen formation is disclosed. One or more rotary cones are rotatively retained on a journal bearing connected to the rock bit. These rotary cones form a circumferential heel row with extended ultra hard shaped cutters spaced within the heel row. Each of the shaped cutters form a cutting surface that extends above the heel row or is angled with respect to the formation to maintain the cutters in compression while the cutters shear a borehole wall. The shaped cutters serve to maintain the borehole diameter.
摘要翻译：公开了一种用于在土层中钻孔的旋转锥形钻头。一个或多个旋转锥体旋转地保持在连接到岩石钻头的轴颈轴承上。这些旋转锥体形成具有在脚后跟行间隔开的延伸的超硬质切割器的圆周跟部行。每个成形切割器形成一个切割表面，该切割表面在跟部行上方延伸，或相对于地层成角度，以在切割器剪切钻孔壁时保持切割器处于压缩状态。成形刀具用于维持钻孔直径。

9. 发明授权

US08991523B2 Rolling cutter assembled directly to the bit pockets 有权
标题翻译：滚动刀具直接组装到钻头口袋
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。

10. 发明授权

US06460637B1 Engineered enhanced inserts for rock drilling bits 有权
公开(公告)号：US06460637B1
公开(公告)日：2002-10-08
申请号：US09707612
申请日：2000-11-07
申请人： Michael A. Siracki , Chris E. Cawthorne , Per I. Nese , Madapusi K. Keshavan , J. Daniel Belnap , Ronald K. Eyre , Nathan R. Anderson
发明人： Michael A. Siracki , Chris E. Cawthorne , Per I. Nese , Madapusi K. Keshavan , J. Daniel Belnap , Ronald K. Eyre , Nathan R. Anderson
IPC分类号： E21B1036
CPC分类号： E21B17/1092 , E21B10/56
摘要： Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock bit and contact the earth formations off center. The ultra hard material layer is thickest at a critical zone which encompasses a major portion of the region of contact between the insert and the earth formation. Transition layers may also be formed between the ultra hard material layer and the protrusion so as to reduce the residual stresses formed on the interface between the ultra hard material and the protrusion.

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