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1. 发明申请

US20060054361A1 Two-cone drill bit with enhanced stability 有权
公开(公告)号：US20060054361A1
公开(公告)日：2006-03-16
申请号：US10938068
申请日：2004-09-10
申请人： Mohammed Boudrare , Prabhakaran Centala
发明人： Mohammed Boudrare , Prabhakaran Centala
IPC分类号： E21B10/36 , E21B10/08
CPC分类号： E21B10/086 , E21B10/08 , E21B10/16
摘要： A two-cone drill bit that exhibits improved stability. In one embodiment, the two-cone drill bit has a first and a second roller cone arranged to have a cone separation angle between about 145 degrees and about 166 degrees. In some embodiments, the two-cone drill bit has a plurality of cutting elements arranged on the roller cones such that a bottom hole coverage greater than about 17 percent is achieved per revolution of the two-cone drill bit.

2. 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。

3. 发明授权

US07681670B2 Two-cone drill bit 有权
标题翻译：双锥钻头
公开(公告)号：US07681670B2
公开(公告)日：2010-03-23
申请号：US10938069
申请日：2004-09-10
申请人： Prabhakaran K. Centala , James L. Larsen , Mohammed Boudrare
发明人： Prabhakaran K. Centala , James L. Larsen , Mohammed Boudrare
IPC分类号： E21B10/08
CPC分类号： E21B10/08 , E21B10/086 , E21B10/18 , Y10T29/49826
摘要： A two-cone drill bit with a hydraulic arrangement that can be used for one or more of the following: cleaning roller cones, impinging on a hole bottom, or inducing a helical flow field. A two-cone drill bit having a bit body formed from two leg sections and two spacing members; methods of manufacturing a two-cone drill bit; and methods of improving hydraulics of a two-cone drill bit are disclosed.
摘要翻译：具有液压装置的双锥钻头可用于以下一个或多个：清洁滚筒锥体，撞击孔底部或引起螺旋流场。一种双锥钻头，其具有由两个腿部段和两个间隔构件形成的钻头体; 制造双锥钻头的方法; 并公开了改进双锥钻头液压的方法。

4. 发明申请

US20090178856A1 Drill Bit and Cutter Element Having a Fluted Geometry 有权
标题翻译：钻头和铣刀元件具有凹槽几何
公开(公告)号：US20090178856A1
公开(公告)日：2009-07-16
申请号：US12015054
申请日：2008-01-16
申请人： Amardeep Singh , Mohammed Boudrare
发明人： Amardeep Singh , Mohammed Boudrare
IPC分类号： E21B10/36 , E21B10/16
CPC分类号： E21B10/56 , E21B10/58
摘要： A drill bit for cutting a borehole having a borehole sidewall, corner and bottom, the drill bit comprises a bit body including a bit axis. 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 having a cutting portion extending therefrom. The cutting portion of the at least one insert has a cutting surface including at least one flute.
摘要翻译：一种用于切割钻孔的钻头，其具有钻孔侧壁，角部和底部，所述钻头包括具有钻头轴线的钻头体。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并具有从其延伸的切割部分的基部。至少一个插入件的切割部分具有包括至少一个凹槽的切割表面。

5. 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。

6. 发明授权

US08028773B2 Drill bit and cutter element having a fluted geometry 有权
标题翻译：钻头和刀具元件具有槽纹几何形状
公开(公告)号：US08028773B2
公开(公告)日：2011-10-04
申请号：US12015054
申请日：2008-01-16
申请人： Amardeep Singh , Mohammed Boudrare
发明人： Amardeep Singh , Mohammed Boudrare
IPC分类号： E21B10/16
CPC分类号： E21B10/56 , E21B10/58
摘要： A drill bit for cutting a borehole having a borehole sidewall, corner and bottom, includes a bit body having a bit axis and a rolling cone cutter mounted on the bit body and adapted for rotation about a cone axis. Further, the drill bit includes at least one insert having a base portion secured in the rolling cone cutter and having a cutting portion extending therefrom. The cutting portion of the at least one insert has a cutting surface including at least one flute.
摘要翻译：用于切割具有井眼侧壁，角落和底部的钻孔的钻头包括具有钻头轴线的钻头体和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并具有从其延伸的切割部分的基部。至少一个插入件的切割部分具有包括至少一个凹槽的切割表面。

7. 发明申请

US20100132510A1 TWO-CONE DRILL BIT 审中-公开
标题翻译：双锥钻头
公开(公告)号：US20100132510A1
公开(公告)日：2010-06-03
申请号：US12702179
申请日：2010-02-08
申请人： Prabhakaran K. Centala , James L. Larsen , Mohammed Boudrare
发明人： Prabhakaran K. Centala , James L. Larsen , Mohammed Boudrare
IPC分类号： B23P15/28 , B23P11/00
CPC分类号： E21B10/08 , E21B10/086 , E21B10/18 , Y10T29/49826
摘要： A two-cone drill bit with a hydraulic arrangement that can be used for one or more of the following: cleaning roller cones, impinging on a hole bottom, or inducing a helical flow field. A two-cone drill bit having a bit body formed from two leg sections and two spacing members. Methods of manufacturing a two-cone drill bit. Methods of improving hydraulics of a two-cone drill bit.
摘要翻译：具有液压装置的双锥钻头可用于以下一个或多个：清洁滚筒锥体，撞击孔底部或引起螺旋流场。一种双锥钻头，其具有由两个腿部段和两个间隔构件形成的钻头体。制造双锥钻头的方法。改进双锥钻头液压的方法。

8. 发明授权

US07699126B2 Cutting element having asymmetrical crest for roller cone drill bit 有权
标题翻译：用于滚子锥钻头的切削元件具有不对称的顶角
公开(公告)号：US07699126B2
公开(公告)日：2010-04-20
申请号：US11758341
申请日：2007-06-05
申请人： Mohammed Boudrare , Amardeep Singh
发明人： Mohammed Boudrare , Amardeep Singh
IPC分类号： E21B10/16
CPC分类号： E21B10/16 , E21B10/52
摘要： A drill bit for drilling a borehole includes a cutter element comprising a base portion. In addition, the cutter element comprises a cutting portion extending from the base portion and terminating in an elongate crest extending between a first crest end and a second crest end, and having an intermediate portion therebetween. The first crest end has a width W1 and the second end has a width W2 that is greater than the width W1. Still further, the intermediate portion of the crest has a width W3 that is less than the width W2 and less than or equal to the width W1.
摘要翻译：用于钻孔的钻头包括包括基部的切割元件。此外，刀具元件包括从基部延伸并终止于在第一顶端和第二顶端之间延伸的细长顶部并且在它们之间具有中间部分的切割部分。第一顶端具有宽度W1，第二端的宽度W2大于宽度W1。此外，顶部的中间部分具有小于宽度W2并且小于或等于宽度W1的宽度W3。

9. 发明申请

US20080156544A1 DRILL BIT WITH CUTTER ELEMENT HAVING CROSSING CHISEL CRESTS 有权
标题翻译：具有切割机组的刀具元件钻头
公开(公告)号：US20080156544A1
公开(公告)日：2008-07-03
申请号：US11947226
申请日：2007-11-29
申请人： Amardeep Singh , Mohammed Boudrare
发明人： Amardeep Singh , Mohammed Boudrare
IPC分类号： E21B10/08
CPC分类号： E21B10/52 , E21B10/16
摘要： A drill bit for cutting a borehole comprises a bit body including a bit axis. In addition, the drill bit comprises a rolling cone cutter mounted on the bit body. Further, the drill bit comprises a cutter element having a base portion with a diameter and a cutting portion extending therefrom. The cutting portion comprising a first pair of flanking surfaces that taper towards one another to form a first elongate chisel crest, and a second pair of flanking surfaces that taper towards one another to form a second elongate chisel crest that intersects the first elongate chisel crest in top view. The first crest tangent angle at 10% of the diameter measured radially from the central axis on the first elongate chisel crest in profile view is greater than 75° and less than or equal to 90°.
摘要翻译：用于切割钻孔的钻头包括具有钻头轴线的钻头体。此外，钻头包括安装在钻头体上的滚动切割刀。此外，钻头包括具有直径的基部和从其延伸的切割部的切割器元件。所述切割部分包括朝向彼此逐渐变细以形成第一细长凿顶部的第一对侧面表面，以及朝向彼此成锥形的第二对侧面，以形成与所述第一细长凿顶部相交的第二细长凿顶部顶视图。在轮廓视图中，从第一细长凿头顶部的中心轴线径向测量的直径的10％处的第一波峰切线角大于75°且小于或等于90°。

10. 发明授权

US07048080B2 Roller cone bits with wear and fracture resistant surface 有权
$Roller cone bits with wear and fracture resistant surface$
标题翻译：滚轮锥头具有耐磨损和抗断裂的表面
公开(公告)号：US07048080B2
公开(公告)日：2006-05-23
申请号：US10650268
申请日：2003-08-28
申请人： Anthony Griffo , Gregory Thomas Lockwood , Mohammed Boudrare , Jiaqing Yu
发明人： Anthony Griffo , Gregory Thomas Lockwood , Mohammed Boudrare , Jiaqing Yu
IPC分类号： E21B10/50
CPC分类号： B22F1/0003 , B22F7/06 , B22F2005/001 , B22F2999/00 , C22C32/00 , E21B10/08 , E21B10/50 , B22F3/22
摘要： Roller cone bits include a steel bit body having a leg extending therefrom. A steel cone is disposed on the leg and includes steel cutting elements projecting outwardly therefrom. One of the cutting elements comprises a steel base integral with the cone and that projects therefrom. A cutting element end is attached to the base portion and extends to form a cutting element tip. The base and end portions are attached when the cone base are in a preexisting rigid state. The end portion comprises a wear resistant material having a material microstructure comprising a first phase of grains selected from the group of carbides, borides, nitrides, and carbonitrides of W, Ti, Mo, Nb, V, Hf, Ta, and Cr refractory metals; and a second phase of a binder material selected from the group consisting of Co, Ni, Fe, and alloys thereof.
摘要翻译：滚子锥头包括具有从其延伸的腿的钢钻头体。钢锥体设置在腿上并且包括从其向外突出的钢切割元件。其中一个切割元件包括与锥体成一体并从其突出的钢基座。切割元件端附接到基部并延伸以形成切割元件尖端。当锥形基座处于预先存在的刚性状态时，基部和端部附接。该端部包括耐磨材料，其具有包含选自W，Ti，Mo，Nb，V，Hf，Ta和Cr难熔金属的碳化物，硼化物，氮化物和碳氮化物的第一相晶粒的材料微观结构 ; 以及选自由Co，Ni，Fe及其合金组成的组的粘合剂材料的第二相。

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