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1.发明申请METHODS OF FORMING EARTH-BORING TOOLS HAVING FEATURES FOR AFFECTING CUTTINGS FLOW 有权形成具有影响切割流量特征的地球工具的方法公开(公告)号：US20110126674A1
公开(公告)日：2011-06-02
申请号：US13024208
申请日：2011-02-09
IPC分类号： B23P15/28
CPC分类号： E21B10/18
摘要： Methods of forming earth-boring tools include assembling a plurality of head sections about a longitudinal axis to form a bit body, rotatably mounting a cutter to the cutter bearing shaft of each head section, and forming at least one groove on an outer surface of a bit leg of at least one head section, causing the at least one groove to extend along a curved path from a leading side of the bit leg to a trailing side of the bit leg between an upper sidewall and a lower sidewall.
摘要翻译： 形成钻孔工具的方法包括围绕纵向轴线组装多个头部部分以形成钻头体，将切割器可旋转地安装到每个头部部分的切割器轴承轴上，以及在每个头部的外表面上形成至少一个凹槽 至少一个头部部分的位腿，使得所述至少一个凹槽沿着从所述钻头腿的前侧到所述钻头腿的后侧的弯曲路径延伸，所述弯曲路径在上侧壁和下侧壁之间。
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公开(公告)号：US07918292B2
公开(公告)日：2011-04-05
申请号：US12169962
申请日：2008-07-09
IPC分类号： E21B10/18
CPC分类号： E21B10/18
摘要： An earth-boring bit has a bit body having a plurality of bit legs extending longitudinally therefrom, each bit leg comprising one or more groove regions formed along a laterally outer surface thereof. Each groove region comprises a fluid course for drilling fluid and cuttings to pass across the outer surface. A ridge may be disposed adjacent a lower edge of one or more of the groove regions. Each groove region may also be positioned at differing heights on the bit legs. Methods of forming earth-boring bits are also disclosed.
摘要翻译： 钻头具有从其纵向延伸的多个钻头刀头的位体，每个钻头刀腿包括沿其横向外表面形成的一个或多个凹槽区域。 每个凹槽区域包括用于钻探流体和切屑穿过外表面的流体流道。 脊可以邻近一个或多个凹槽区域的下边缘设置。 每个凹槽区域也可以位于钻头腿上不同的高度处。 还公开了形成钻头的方法。
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3.发明申请EARTH-BORING TOOLS HAVING FEATURES FOR AFFECTING CUTTINGS FLOW AND METHODS OF FORMING THE SAME 有权具有影响切割流程的特性的接地工具及其形成方法公开(公告)号：US20100006343A1
公开(公告)日：2010-01-14
申请号：US12169962
申请日：2008-07-09
IPC分类号： E21B10/08
CPC分类号： E21B10/18
摘要： An earth-boring bit has a bit body having a plurality of bit legs extending longitudinally therefrom, each bit leg comprising one or more groove regions formed along a laterally outer surface thereof. Each groove region comprises a fluid course for drilling fluid and cuttings to pass across the outer surface. A ridge may be disposed adjacent a lower edge of one or more of the groove regions. Each groove region may also be positioned at differing heights on the bit legs. Methods of forming earth-boring bits are also disclosed.
摘要翻译： 钻头具有从其纵向延伸的多个钻头刀头的位体，每个钻头刀腿包括沿其横向外表面形成的一个或多个凹槽区域。 每个凹槽区域包括用于钻探流体和切屑穿过外表面的流体流道。 脊可以邻近一个或多个凹槽区域的下边缘设置。 每个凹槽区域也可以位于钻头腿上不同的高度处。 还公开了形成钻头的方法。
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4.发明授权Methods of forming earth-boring tools having features for affecting cuttings flow 有权形成钻孔工具的方法具有影响切屑流动的特征公开(公告)号：US08079427B2
公开(公告)日：2011-12-20
申请号：US13024208
申请日：2011-02-09
IPC分类号： E21B10/18
CPC分类号： E21B10/18
摘要： Methods of forming earth-boring tools include assembling a plurality of head sections about a longitudinal axis to form a bit body, rotatably mounting a cutter to a cutter bearing shaft of each head section, and forming at least one groove on an outer surface of a bit leg of at least one head section, causing the at least one groove to extend along a curved path from a leading side of the bit leg to a trailing side of the bit leg between an upper sidewall and a lower sidewall.
摘要翻译： 形成钻孔工具的方法包括围绕纵向轴线组装多个头部部分以形成钻头体，将切割器可旋转地安装到每个头部部分的切割器轴承轴上，以及在至少一个凹槽的外表面上形成 至少一个头部部分的位腿，使得所述至少一个凹槽沿着从所述钻头腿的前侧到所述钻头腿的后侧的弯曲路径延伸，所述弯曲路径在上侧壁和下侧壁之间。
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公开(公告)号：US07779936B2
公开(公告)日：2010-08-24
申请号：US12237602
申请日：2008-09-25
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： An earth boring drill bit comprising cones, each cone having a land on its mid portion with at least two rows of compacts that are staggered with respect to adjacent compacts on another row. The compacts of these two rows may also have the same size. The compacts of these two inner rows are closer to each other than to any other compacts on the cone.
摘要翻译： 一种钻孔钻头，包括锥体，每个锥体在其中部具有至少两排相对于另一排上的相邻压块交错的压块的平台。 这两排的压块也可以具有相同的尺寸。 这两个内排的压块比锥体上的任何其它压块更紧密。
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公开(公告)号：US07673709B2
公开(公告)日：2010-03-09
申请号：US11393298
申请日：2006-03-30
IPC分类号： E21B10/52
CPC分类号： E21B10/16
摘要： An earth-boring bit has a bit body and at least one cone for rotation relative to the bit body. The cone has a gage surface and a nose area separated by a central area. A nose insert is located in the nose area. The nose insert has a barrel located within a hole in the nose area and an outer end protruding from the cone, the outer end has a perimeter that is a plane perpendicular to a barrel axis of the nose insert.
摘要翻译： 钻头具有一个位体和至少一个相对于钻头体旋转的锥体。 锥体具有表面和由中心区域分开的鼻部区域。 鼻插头位于鼻部区域。 鼻插入物具有位于鼻部区域中的孔内的筒体和从锥体突出的外端，外端具有与鼻插入物的筒轴垂直的平面的周边。
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公开(公告)号：US20100071963A1
公开(公告)日：2010-03-25
申请号：US12237602
申请日：2008-09-25
IPC分类号： E21B10/00
CPC分类号： E21B10/16
摘要： An earth boring drill bit comprising cones, each cone having a land on its mid portion with at least two rows of compacts that are staggered with respect to adjacent compacts on another row. The compacts of these two rows may also have the same size. The compacts of these two inner rows are closer to each other than to any other compacts on the cone.
摘要翻译： 一种钻孔钻头，包括锥体，每个锥体在其中部具有至少两排相对于另一排上的相邻压块交错的压块的平台。 这两排的压块也可以具有相同的尺寸。 这两个内排的压块比锥体上的任何其它压块更紧密。
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公开(公告)号：US20100038146A1
公开(公告)日：2010-02-18
申请号：US12541399
申请日：2009-08-14
申请人： Floyd C. Felderhoff , Mark A. Freeman , Alan J. Massey , Kenneth E. Gilmore , Glen A. Stanfield
发明人： Floyd C. Felderhoff , Mark A. Freeman , Alan J. Massey , Kenneth E. Gilmore , Glen A. Stanfield
IPC分类号： E21B10/08
摘要： A drill bit for drilling a wellbore, the drill bit having a cutter which has tungsten carbide inserts and a spear point. The spear point has a neck that joins a smooth portion of the cutter and blades that extend from the neck and converge to an apex. The blades define valleys or spaces between them. A layer of hardfacing is applied to the entire spear point including the interim spaces and the neck.
摘要翻译： 用于钻井的钻头，所述钻头具有具有碳化钨刀片和矛尖的刀具。 矛尖具有连接切割器的平滑部分的颈部和从颈部延伸并收敛到顶点的刀片。 叶片在它们之间限定了谷或空间。 整个硬质点应用于包括临时空间和颈部在内的整个矛点。
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公开(公告)号：US20080190670A1
公开(公告)日：2008-08-14
申请号：US12029197
申请日：2008-02-11
IPC分类号： E21B10/52
CPC分类号： E21B10/43
摘要： A fixed cutter rotary drill bit having gauge cutting elements at large back rake angles are disclosed. The gauge is located at the outer diameter side wall portion of the bit that extends from the cutting end. The gauge and its cutting components contact the side wall of the bore hole during drilling operations. The gauge cutting elements may be configured at a back rake angle in a range of about 40° to 70°.
摘要翻译： 公开了一种具有大后排前角的量规切割元件的固定式旋转钻头。 该量规位于从切割端延伸的钻头的外径侧壁部分。 测量仪及其切割部件在钻孔操作期间接触钻孔的侧壁。 量规切割元件可以构造在约40°至70°的范围内的后倾角。
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10.发明授权Cutting element placement on a fixed cutter drill bit to reduce diamond table fracture 有权切割元件放置在固定的切割钻头上，以减少钻石台骨折公开(公告)号：US09359825B2
公开(公告)日：2016-06-07
申请号：US12537899
申请日：2009-08-07
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.
摘要翻译： 旋转牵引钻头包括主切割器行，其包括安装在叶片上的至少一个主切割器，主切割器列中的至少一些切割器具有其切割表面的一部分由叶片的一部分覆盖。 还可以包括包括至少一个切割器的备用切割器排，并且备用切割器行中的至少一些切割器的切割表面的至少一部分被叶片的一部分覆盖。 针对冲击载荷提供了对刀具的增强支撑。
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