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31. 发明申请

US20080169698A1 Carbide Stem Press Fit into a Steel Body of A Pick 有权
标题翻译：硬质合金压块适合选择的钢体
公开(公告)号：US20080169698A1
公开(公告)日：2008-07-17
申请号：US11774227
申请日：2007-07-06
申请人： David R. Hall , John Bailey , Ronald B. Crockett
发明人： David R. Hall , John Bailey , Ronald B. Crockett
IPC分类号： E21C25/04
CPC分类号： E21C35/183
摘要： In one aspect of the present invention, a high impact resistant tool, having a super hard material is bonded to a cemented metal carbide substrate at a non-planar interface. The cemented metal carbide substrate is bonded to a front end of a cemented metal carbide segment. A stem is formed in the base end of the carbide segment opposite the front end and the carbide stem is press fitted into bore of a steel body.
摘要翻译：在本发明的一个方面，具有超硬材料的高抗冲击工具在非平面界面处粘接到胶合金属碳化物基体。粘结的金属碳化物基体粘合到胶结金属碳化物段的前端。在与前端相对的碳化物段的基端部形成有杆，将碳化物杆压配合到钢体的孔中。

32. 发明申请

US20080156541A1 Downhole Hammer Assembly 有权
公开(公告)号：US20080156541A1
公开(公告)日：2008-07-03
申请号：US12037682
申请日：2008-02-26
申请人： David R. Hall , John Bailey , Scott Dahlgren
发明人： David R. Hall , John Bailey , Scott Dahlgren
IPC分类号： E21B10/36
CPC分类号： E21B4/14 , E21B7/064 , E21B10/36 , E21B10/38 , E21B10/42 , E21B10/54 , E21B10/62 , E21B21/10 , E21B47/122
摘要： A drill bit assembly comprises a bit body intermediate a shank and a working face. The shank is adapted for connection to a drill string. The drill string comprising a fluid passage at least partially disposed within the body. A hammer assembly is movably disposed within the fluid passage along it central axis, the hammer assembly comprises a proximal end stabilized by a centralized upper bearing and a distal end stabilized by centralized a lower bearing. The distal end protrudes out of the working face and the hammer assembly comprises a carrier between the upper and lower bearings. Wherein, under normal drilling operations the carrier is adapted to resist a fluid pressure within the fluid passageway such that the fluid pressure will further extend the distal end of the hammer assembly from the working face by pushing on the carrier.

33. 发明申请

US20080142274A1 Downhole Hammer Assembly 有权
标题翻译：井下锤组装
公开(公告)号：US20080142274A1
公开(公告)日：2008-06-19
申请号：US12037764
申请日：2008-02-26
申请人： David R. Hall , John Bailey , Scott Dahlgren
发明人： David R. Hall , John Bailey , Scott Dahlgren
IPC分类号： E21B10/38
CPC分类号： E21B10/42 , E21B4/14 , E21B10/38 , E21B10/62 , E21B21/10
摘要： A drill bit assembly comprises a bit body intermediate a shank and a working face. The shank is adapted for connection to a drill string. The drill string comprising a fluid passage at least partially disposed within the body. A hammer assembly is movably disposed within the fluid passage along it central axis, the hammer assembly comprises a proximal end stabilized by a centralized upper bearing and a distal end stabilized by centralized a lower bearing. The distal end protrudes out of the working face and the hammer assembly comprises a carrier between the upper and lower bearings. Wherein, under normal drilling operations the carrier is adapted to resist a fluid pressure within the fluid passageway such that the fluid pressure will further extend the distal end of the hammer assembly from the working face by pushing on the carrier.
摘要翻译：钻头组件包括位于柄部和工作面之间的钻头体。该柄适于连接到钻柱。所述钻柱包括至少部分地设置在所述主体内的流体通道。锤组件沿其中心轴线可移动地设置在流体通道内，锤组件包括由集中的上轴承稳定的近端和由集中的下轴承稳定的远端。远端从工作面伸出，锤组件包括在上轴承和下轴承之间的托架。其中，在正常钻孔操作下，载体适于抵抗流体通道内的流体压力，使得流体压力将通过推动载体来进一步使锤组件的远端从工作面延伸。

34. 发明申请

US20080142265A1 Downhole Mechanism 有权
标题翻译：井下机制
公开(公告)号：US20080142265A1
公开(公告)日：2008-06-19
申请号：US12039635
申请日：2008-02-28
申请人： David R. Hall , John Bailey
发明人： David R. Hall , John Bailey
IPC分类号： E21B7/04
CPC分类号： E21B4/14 , E21B7/14 , E21B7/18 , E21B10/38 , E21B10/42 , E21B10/62 , E21B21/10
摘要： In one aspect of the invention, a downhole tool string component comprises a fluid passageway formed between a first and second end. A valve mechanism is disposed within the fluid passageway adapted to substantially cyclically build-up and release pressure within the fluid passageway such that a pressure build-up results in radial expansion of at least a portion of the fluid passageway and wherein a pressure release results in a contraction of the portion of the fluid passageway. The valve mechanism disposed within the fluid passageway comprises a spring. Expansion and contraction of the portion of the fluid passageway varies a weight loaded to a drill bit disposed at a drilling end of the drill string.
摘要翻译：在本发明的一个方面，井下工具串组件包括形成在第一和第二端之间的流体通道。阀机构设置在流体通道内，适于基本上循环地积聚和释放流体通道内的压力，使得压力增加导致流体通道的至少一部分的径向膨胀，并且其中压力释放导致流体通道部分的收缩。设置在流体通道内的阀机构包括弹簧。流体通道部分的膨胀和收缩改变了装载到钻柱钻孔端的钻头的重量。

35. 发明授权

US07694756B2 Indenting member for a drill bit 有权
标题翻译：压痕成员钻头
公开(公告)号：US07694756B2
公开(公告)日：2010-04-13
申请号：US11871644
申请日：2007-10-12
申请人： David R. Hall , Francis Leany , John Bailey
发明人： David R. Hall , Francis Leany , John Bailey
IPC分类号： E21B10/04 , E21B10/26
CPC分类号： E21B10/46 , E21B10/43 , E21B10/54 , E21B10/62
摘要： A drill bit has a bit body intermediate a working face and a shank end adapted for connection to a downhole drill string. The working face has at least three fixed blades converging towards a center of the working face and diverging towards a gauge of the bit, at least one blade having a cone region adjacent the center of the working face. The cone region increases in height away from the center of the working face and towards a nose portion of the at least one blade. An opening is formed in the working face at the center of the bit along an axis of the drill bit's rotation, the opening leading into a chamber with at least one wall. An indenting member is disposed within and extends from the opening, is substantially coaxial with the axis of rotation, and is fixed to the wall of the chamber.
摘要翻译：钻头具有位于工作面之间的位体，以及适于连接到井下钻柱的柄端。工作面具有至少三个固定刀片，其朝向工作面的中心会聚，朝向钻头的量规发散，至少一个叶片具有与工作面的中心相邻的锥形区域。锥形区域的高度远离工作面的中心并且朝向至少一个叶片的鼻部分增加。在钻头的中心处的工作面中沿着钻头旋转的轴线形成开口，该开口通向具有至少一个壁的腔室。凹口构件设置在开口内并且从开口延伸，与旋转轴线基本上同轴，并且固定到腔室的壁。

36. 发明授权

US07641003B2 Downhole hammer assembly 失效
标题翻译：井下锤组件
公开(公告)号：US07641003B2
公开(公告)日：2010-01-05
申请号：US12037733
申请日：2008-02-26
申请人： David R Hall , John Bailey , Scott Dahlgren
发明人： David R Hall , John Bailey , Scott Dahlgren
IPC分类号： E21B10/26 , E21B10/40
CPC分类号： E21B10/42 , E21B4/14 , E21B10/38 , E21B10/62 , E21B21/10
摘要： A drill bit assembly comprises a bit body intermediate a shank and a working face. The shank is adapted for connection to a drill string. The drill string comprising a fluid passage at least partially disposed within the body. A hammer assembly is movably disposed within the fluid passage along it central axis, the hammer assembly comprises a proximal end stabilized by a centralized upper bearing and a distal end stabilized by centralized a lower bearing. The distal end protrudes out of the working face and the hammer assembly comprises a carrier between the upper and lower bearings. Wherein, under normal drilling operations the carrier is adapted to resist a fluid pressure within the fluid passageway such that the fluid pressure will further extend the distal end of the hammer assembly from the working face by pushing on the carrier.
摘要翻译：钻头组件包括位于柄部和工作面之间的钻头体。该柄适于连接到钻柱。所述钻柱包括至少部分地设置在所述主体内的流体通道。锤组件沿其中心轴线可移动地设置在流体通道内，锤组件包括由集中的上轴承稳定的近端和由集中的下轴承稳定的远端。远端从工作面伸出，锤组件包括在上轴承和下轴承之间的托架。其中，在正常钻孔操作下，载体适于抵抗流体通道内的流体压力，使得流体压力将通过推动载体来进一步使锤组件的远端从工作面延伸。

37. 发明授权

US07571782B2 Stiffened blade for shear-type drill bit 有权
标题翻译：用于剪切型钻头的加强刀片
公开(公告)号：US07571782B2
公开(公告)日：2009-08-11
申请号：US11767044
申请日：2007-06-22
申请人： David R. Hall , John Bailey
发明人： David R. Hall , John Bailey
IPC分类号： E21B10/36
CPC分类号： E21B10/43 , E21B10/46 , E21B10/573
摘要： In one aspect of the invention, a drill bit comprises a steel body disposed intermediate a threaded end and a working face. The steel body comprises a plurality of steel blades disposed along an outer diameter of the body and extending radially away from an axis of rotation of the bit. A plurality of cutter elements is disposed on the plurality of steel blades and the blades each comprise a steel stiffness and a steel elastic modulus. At least one of the plurality of steel blades comprises a stiffening element and an overall stiffness at least 3.5 times greater than the steel stiffness.
摘要翻译：在本发明的一个方面，钻头包括设置在螺纹端和工作面之间的钢体。钢体包括多个沿着主体的外径设置的钢叶片，并且径向地远离钻头的旋转轴线延伸。多个切割元件设置在多个钢叶片上，并且叶片各自包括钢刚度和钢弹性模量。多个钢叶片中的至少一个包括加强元件和总体刚度比钢刚度至少大3.5倍。

38. 发明申请

US20080142273A1 Downhole Hammer Assembly 失效
公开(公告)号：US20080142273A1
公开(公告)日：2008-06-19
申请号：US12037733
申请日：2008-02-26
申请人： David R. Hall , John Bailey , Scott Dahlgren
发明人： David R. Hall , John Bailey , Scott Dahlgren
IPC分类号： E21B10/38
CPC分类号： E21B10/42 , E21B4/14 , E21B10/38 , E21B10/62 , E21B21/10
摘要： A drill bit assembly comprises a bit body intermediate a shank and a working face. The shank is adapted for connection to a drill string. The drill string comprising a fluid passage at least partially disposed within the body. A hammer assembly is movably disposed within the fluid passage along it central axis, the hammer assembly comprises a proximal end stabilized by a centralized upper bearing and a distal end stabilized by centralized a lower bearing. The distal end protrudes out of the working face and the hammer assembly comprises a carrier between the upper and lower bearings. Wherein, under normal drilling operations the carrier is adapted to resist a fluid pressure within the fluid passageway such that the fluid pressure will further extend the distal end of the hammer assembly from the working face by pushing on the carrier.

39. 发明申请

US20080142263A1 Downhole Valve Mechanism 失效
标题翻译：井下阀机构
公开(公告)号：US20080142263A1
公开(公告)日：2008-06-19
申请号：US12039608
申请日：2008-02-28
申请人： David R. Hall , John Bailey
发明人： David R. Hall , John Bailey
IPC分类号： E21B44/06 , E21B4/10 , E21B4/14
CPC分类号： E21B4/14 , E21B7/064 , E21B7/14 , E21B7/18 , E21B10/36 , E21B10/38 , E21B10/42 , E21B10/54 , E21B10/62 , E21B21/10 , E21B47/122
摘要： In one aspect of the invention, a downhole tool string component comprises a fluid passageway formed between a first and second end. A valve mechanism is disposed within the fluid passageway adapted to substantially cyclically build-up and release pressure within the fluid passageway such that a pressure build-up results in radial expansion of at least a portion of the fluid passageway and wherein a pressure release results in a contraction of the portion of the fluid passageway. The valve mechanism disposed within the fluid passageway comprises a spring. Expansion and contraction of the portion of the fluid passageway varies a weight loaded to a drill bit disposed at a drilling end of the drill string.
摘要翻译：在本发明的一个方面，井下工具串组件包括形成在第一和第二端之间的流体通道。阀机构设置在流体通道内，适于基本上循环地积聚和释放流体通道内的压力，使得压力增加导致流体通道的至少一部分的径向膨胀，并且其中压力释放导致流体通道部分的收缩。设置在流体通道内的阀机构包括弹簧。流体通道部分的膨胀和收缩改变了装载到钻柱钻孔端的钻头的重量。

40. 发明授权

US08622155B2 Pointed diamond working ends on a shear bit 有权
标题翻译：指尖金刚石工作端在剪切位上
公开(公告)号：US08622155B2
公开(公告)日：2014-01-07
申请号：US11829577
申请日：2007-07-27
申请人： David R. Hall , Ronald B. Crockett , John Bailey
发明人： David R. Hall , Ronald B. Crockett , John Bailey
IPC分类号： E21B10/43
CPC分类号： E21B10/43 , E21B10/46
摘要： In one aspect of the present invention, a drill string has a drill bit with a body intermediate a shank and a working face. The working face has a plurality of blades converging at a center of the working surface and diverging towards a gauge of the working face. At least one blade has a cutting element with a carbide substrate bonded to a diamond working end with a pointed geometry. The diamond working end also has a central axis which intersects an apex of the pointed geometry. The axis is oriented between a 25 and 85 degree positive rake angle.
摘要翻译：在本发明的一个方面，钻柱具有钻头，其具有在柄部和工作面之间的主体。工作面具有多个叶片，其在工作表面的中心处会聚并朝向工作面的量规发散。至少一个刀片具有切割元件，其中碳化物基底以尖的几何形状结合到金刚石工作端。金刚石工作端还具有与尖的几何形状的顶点相交的中心轴线。该轴线定位在25度到85度的正前角之间。

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