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1. 发明授权

US07686104B2 Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions 有权
标题翻译：具有定位在多个不同径向位置的切割元件的滚动钻头
公开(公告)号：US07686104B2
公开(公告)日：2010-03-30
申请号：US11536299
申请日：2006-09-28
申请人： Amardeep Singh , Scott D. McDonough , Joshua Gatell , Mohammed Boudrare , Bryce A. Baker , Parveen K. Chandila , Brandon M. Moss , Allen D. White
发明人： Amardeep Singh , Scott D. McDonough , Joshua Gatell , Mohammed Boudrare , Bryce A. Baker , Parveen K. Chandila , Brandon M. Moss , Allen D. White
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： A drill bit for drilling through earthen formations and forming a borehole. In an embodiment, the bit comprises a bit body having a bit axis. In addition, the bit comprises a plurality of cone cutters, each of the cone cutters being mounted on the bit body and adapted for rotation about a different cone axis. Further, at least one cone cutter on the bit comprises an array of cutter elements mounted in a band. Still further, the cutter elements in the array are mounted in a plurality of differing radial positions relative to the bit axis.
摘要翻译：钻头通过土层钻孔并形成钻孔。在一个实施例中，该位包括具有位轴的位体。此外，钻头包括多个锥形切割器，每个锥形切割器安装在钻头体上并且适于围绕不同的锥体轴线旋转。此外，钻头上的至少一个锥形切割器包括安装在带中的切割器元件阵列。此外，阵列中的切割元件相对于钻头轴线安装在多个不同的径向位置。

2. 发明申请

US20080179102A1 DRILL BITS HAVING OPTIMIZED CUTTING ELEMENT COUNTS FOR REDUCED TRACKING AND/OR INCREASED DRILLING PERFORMANCE 有权
标题翻译：具有优化的切割元件的钻头，减少跟踪和/或增加的钻孔性能
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。

3. 发明申请

US20080156543A1 Rock Bit and Inserts With a Chisel Crest Having a Broadened Region 有权
标题翻译：岩石钻头和插入与凿子有扩大的地区
公开(公告)号：US20080156543A1
公开(公告)日：2008-07-03
申请号：US11858359
申请日：2007-09-20
申请人： Scott D. McDonough , Brandon M. Moss , James C. Minikus
发明人： Scott D. McDonough , Brandon M. Moss , James C. Minikus
IPC分类号： E21B10/16 , E21B10/08
CPC分类号： E21B10/50 , E21B10/16 , E21B10/52
摘要： A drill bit for cutting a borehole comprises a bit body. In addition, the drill bit comprises a rolling cone cutter mounted on the bit body and adapted for rotation about a cone axis. Further, the drill bit comprises at least one insert having a base portion secured in the rolling cone cutter and a cutting portion extending therefrom. The cutting portion includes a pair of flanking surfaces that taper towards one another to form an elongate chisel crest including a first crest end, a second crest end, and an apex positioned therebetween. A transverse radius of curvature at the first crest end is less than a transverse radius of curvature at the apex, and a transverse radius of curvature at the second crest end is less than the transverse radius of curvature at the apex.
摘要翻译：用于切割钻孔的钻头包括钻头体。此外，钻头包括安装在钻头体上并适于围绕锥体轴线旋转的滚动锥切割器。此外，钻头包括至少一个插入件，其具有固定在滚动锥形切割器中的基部和从其延伸的切割部。切割部分包括一对相对于彼此成锥形的侧面表面，以形成细长的凿孔，其包括第一顶端，第二顶端和位于其间的顶点。在第一顶端处的横向曲率半径小于顶点处的横向曲率半径，并且在第二顶端处的横向曲率半径小于顶点处的横向曲率半径。

4. 发明授权

US08205692B2 Rock bit and inserts with a chisel crest having a broadened region 有权
标题翻译：岩石钻头和插入物，具有加宽区域的凿子顶部
公开(公告)号：US08205692B2
公开(公告)日：2012-06-26
申请号：US11858359
申请日：2007-09-20
申请人： Scott D. McDonough , Brandon M. Moss , James C. Minikus
发明人： Scott D. McDonough , Brandon M. Moss , James C. Minikus
IPC分类号： E21B10/16 , E21B10/08
CPC分类号： E21B10/50 , E21B10/16 , E21B10/52
摘要： A drill bit for cutting a borehole comprises a bit body. In addition, the drill bit comprises a rolling cone cutter mounted on the bit body and adapted for rotation about a cone axis. Further, the drill bit comprises at least one insert having a base portion secured in the rolling cone cutter and a cutting portion extending therefrom. The cutting portion includes a pair of flanking surfaces that taper towards one another to form an elongate chisel crest including a first crest end, a second crest end, and an apex positioned therebetween. A transverse radius of curvature at the first crest end is less than a transverse radius of curvature at the apex, and a transverse radius of curvature at the second crest end is less than the transverse radius of curvature at the apex.
摘要翻译：用于切割钻孔的钻头包括钻头体。此外，钻头包括安装在钻头体上并适于围绕锥体轴线旋转的滚动锥切割器。此外，钻头包括至少一个插入件，其具有固定在滚动锥形切割器中的基部和从其延伸的切割部。切割部分包括一对相对于彼此成锥形的侧面表面，以形成细长的凿孔，其包括第一顶端，第二顶端和位于其间的顶点。在第一顶端处的横向曲率半径小于顶点处的横向曲率半径，并且在第二顶端处的横向曲率半径小于顶点处的横向曲率半径。

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