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公开(公告)号：US20050072601A1
公开(公告)日：2005-04-07
申请号：US10650268
申请日：2003-08-28
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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公开(公告)号：US20070095577A1
公开(公告)日：2007-05-03
申请号：US11440233
申请日：2006-05-23
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 of this invention include a steel bit body having at least one leg extending therefrom. A steel cone is rotatably disposed on the leg. The steel cone includes a plurality of steel cutting elements that each project outwardly a distance therefrom. At least one of the cutting elements comprises a steel base portion that is integral with the cone and that projects a distance therefrom. A cutting element end portion is attached to the base portion and extends therefrom to form a tip of the cutting element. The base and end portions are permanently attached together when the cone and base are in a preexisting rigid state. The cutting element end portion is formed from 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： 本发明的滚子钻头包括具有从其延伸的至少一个腿的钢钻头体。 钢锥可旋转地设置在腿上。 钢锥体包括多个钢切割元件，每个钢切割元件从其向外突出一定距离。 切割元件中的至少一个包括与锥体成一体并从其突出一定距离的钢基部。 切割元件端部附接到基部并从其延伸以形成切割元件的尖端。 当锥体和底座处于预先存在的刚性状态时，基部和端部永久地附接在一起。 切割元件端部由具有材料微观结构的耐磨材料形成，所述材料微观结构包括选自W，Ti，Mo，Nb，V，Hf，Ta等的碳化物，硼化物，氮化物和碳氮化物的晶粒的第一相， 和Cr难熔金属; 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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公开(公告)号：US07048080B2
公开(公告)日：2006-05-23
申请号：US10650268
申请日：2003-08-28
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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公开(公告)号：US07543661B2
公开(公告)日：2009-06-09
申请号：US11440233
申请日：2006-05-23
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 of this invention include a steel bit body having at least one leg extending therefrom. A steel cone is rotatably disposed on the leg. The steel cone includes a plurality of steel cutting elements that each project outwardly a distance therefrom. At least one of the cutting elements comprises a steel base portion that is integral with the cone and that projects a distance therefrom. A cutting element end portion is attached to the base portion and extends therefrom to form a tip of the cutting element. The base and end portions are permanently attached together when the cone and base are in a preexisting rigid state. The cutting element end portion is formed from 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： 本发明的滚子钻头包括具有从其延伸的至少一个腿的钢钻头体。 钢锥可旋转地设置在腿上。 钢锥体包括多个钢切割元件，每个钢切割元件从其向外突出一定距离。 切割元件中的至少一个包括与锥体成一体并从其突出一定距离的钢基部。 切割元件端部附接到基部并从其延伸以形成切割元件的尖端。 当锥体和底座处于预先存在的刚性状态时，基部和端部永久地附接在一起。 切割元件端部由具有材料微观结构的耐磨材料形成，所述材料微观结构包括选自W，Ti，Mo，Nb，V，Hf，Ta等的碳化物，硼化物，氮化物和碳氮化物的晶粒的第一相， 和Cr难熔金属; 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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公开(公告)号：US20060054361A1
公开(公告)日：2006-03-16
申请号：US10938068
申请日：2004-09-10
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.
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6.发明授权Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions 有权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。
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公开(公告)号：US07681670B2
公开(公告)日：2010-03-23
申请号：US10938069
申请日：2004-09-10
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。
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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
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。
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9.发明申请DRILL BITS HAVING OPTIMIZED CUTTING ELEMENT COUNTS FOR REDUCED TRACKING AND/OR INCREASED DRILLING PERFORMANCE 有权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。
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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
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。
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