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    HYBRID BIT WITH ROLLER CONES NEAR THE BIT AXIS
    5.
    发明申请
    HYBRID BIT WITH ROLLER CONES NEAR THE BIT AXIS 审中-公开
    混合位与轴位置附近的滚子

    公开(公告)号：US20140353046A1

    公开(公告)日：2014-12-04

    申请号：US14285676

    申请日：2014-05-23

    申请人： Smith International, Inc.

    发明人： Zhehua Zhang ,  Jiaqing Yu ,  Scott D. McDonough

    IPC分类号： E21B10/14

    CPC分类号： E21B10/14

    摘要： A drill bit includes a bit body having a longitudinal axis extending there through, a plurality of journals extending downward and radially outward from the bit body, each journal having a journal axis extending from a base of the journal through the length of the journal, wherein the journal axis at the base is at a first radial distance from the longitudinal axis, a roller cone rotatably mounted to each of the journals, and at least one blade protruding from the bit body and extending axially and radially along the bit body from a first end to a second end, wherein the first end is at a second radial distance from the longitudinal axis greater than the first radial distance, and wherein the second end is at a gage region of the drill bit.

    摘要翻译： 钻头包括具有从其延伸的纵向轴线的钻头体，从钻头体向下延伸并径向向外延伸的多个轴颈，每个轴颈具有从轴颈的基部延伸穿过轴颈的长度的轴颈轴线，其中 位于基座处的轴颈轴线距离纵向轴线处于第一径向距离，可旋转地安装到每个轴颈的滚子锥体以及从钻头体突出并且沿着钻头体从第一部分轴向和径向延伸的至少一个叶片 其末端到第二端，其中所述第一端处于距所述纵向轴线大于所述第一径向距离的第二径向距离，并且其中所述第二端位于所述钻头的量具区域。

    METHODS FOR DESIGNING FIXED CUTTER BITS AND BITS MADE USING SUCH METHODS
    6.
    发明申请
    METHODS FOR DESIGNING FIXED CUTTER BITS AND BITS MADE USING SUCH METHODS 有权
    使用这种方法设计固定的切割器位置和位置的方法

    公开(公告)号：US20140110181A1

    公开(公告)日：2014-04-24

    申请号：US14057601

    申请日：2013-10-18

    申请人： Smith International, Inc.

    发明人： Zhehua Zhang ,  Jiaqing Yu

    IPC分类号： E21B10/55 ,  G06F17/50 ,  E21B10/567

    CPC分类号： E21B10/55 ,  E21B10/567 ,  G06F17/5018

    摘要： Embodiments disclosed herein relate to a method for analyzing a fixed cutter drill bit, said method including selecting a cutter; selecting an earth formation; simulating drilling performance of the fixed cutter bit having at least once cutter thereon; performing finite element analysis using outputs from the simulating; and outputting stress on the at least one cutter.

    摘要翻译： 本文公开的实施例涉及一种用于分析固定切割钻头的方法，所述方法包括：选择切割器; 选择地层; 模拟具有至少一次切割器的固定刀头的钻孔性能; 使用模拟输出进行有限元分析; 并在所述至少一个切割器上输出应力。

    HYBRID DRILL BIT
    7.
    发明申请
    HYBRID DRILL BIT 审中-公开
    混合钻头

    公开(公告)号：US20160348440A1

    公开(公告)日：2016-12-01

    申请号：US14722193

    申请日：2015-05-27

    申请人： Smith International, Inc.

    发明人： Xiaoge Gan ,  Jiaqing Yu ,  Yuelin Shen ,  Youhe Zhang ,  Yong Zhou ,  Jian Wu

    IPC分类号： E21B10/08 ,  E21B10/50 ,  E21B10/14

    CPC分类号： E21B10/08 ,  E21B10/14 ,  E21B10/50

    摘要： A drill bit includes a bit body having a longitudinal bit axis extending there through, a plurality of journals extending from the bit body, each journal having a journal axis extending from a base of the journal through the length of the journal, a roller cone rotatably mounted to each of the journals, and at least one blade protruding from the bit body center and extending radially outward to less than an outer diameter of the drill bit.

    摘要翻译： 钻头包括具有从其延伸的纵向钻头轴线的钻头体，从钻头体延伸的多个轴颈，每个轴颈具有从轴颈的基部延伸穿过轴颈的长度的轴颈轴线， 安装到每个轴颈上，以及至少一个刀片从钻头体中心突出并且径向向外延伸到小于钻头的外径。

    ROLLING CUTTER
    8.
    发明申请
    ROLLING CUTTER 有权
    滚动切割机

    公开(公告)号：US20140345951A1

    公开(公告)日：2014-11-27

    申请号：US14456436

    申请日：2014-08-11

    申请人： Smith International, Inc.

    发明人： Yuelin Shen ,  Youhe Zhang ,  Zhou Yong ,  Jiaqing Yu ,  Madapusi K. Keshavan

    IPC分类号： E21B10/52

    CPC分类号： E21B10/52 ,  E21B10/5673 ,  E21B10/573 ,  Y10T29/49947 ,  Y10T29/49963

    摘要： A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.

    摘要翻译： 一种用于钻头的切割元件，其包括至少具有底部和侧部的外部支撑元件; 以及内部可旋转切割元件，其一部分设置在所述外部支撑元件中，其中所述内部可旋转切割元件包括基底和设置在所述基底的上表面上的具有至少0.050英寸的厚度的金刚石切割面; 并且其中公开了从金刚石切割面的上表面到内部可旋转切割元件和外部支撑元件之间的支承表面的距离为0至约0.300英寸。

    Rolling cutter
    9.
    发明授权
    Rolling cutter 有权
    滚动刀具

    公开(公告)号：US08800691B2

    公开(公告)日：2014-08-12

    申请号：US13847825

    申请日：2013-03-20

    申请人： Smith International, Inc.

    发明人： Yuelin Shen ,  Youhe Zhang ,  Zhou Yong ,  Jiaqing Yu ,  Madapusi K. Keshavan

    IPC分类号： E21B10/46

    CPC分类号： E21B10/52 ,  E21B10/5673 ,  E21B10/573 ,  Y10T29/49947 ,  Y10T29/49963

    摘要： A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.

    摘要翻译： 一种用于钻头的切割元件，其包括至少具有底部和侧部的外部支撑元件; 以及内部可旋转切割元件，其一部分设置在所述外部支撑元件中，其中所述内部可旋转切割元件包括基底和设置在所述基底的上表面上的具有至少0.050英寸的厚度的金刚石切割面; 并且其中公开了从金刚石切割面的上表面到内部可旋转切割元件和外部支撑元件之间的支承表面的距离为0至约0.300英寸。

    ROLLING CUTTER
    10.
    发明申请
    ROLLING CUTTER 有权
    滚动切割机

    公开(公告)号：US20130220707A1

    公开(公告)日：2013-08-29

    申请号：US13847825

    申请日：2013-03-20

    申请人： SMITH INTERNATIONAL, INC.

    发明人： Yuelin Shen ,  Youhe Zhang ,  Zhou Yong ,  Jiaqing Yu ,  Madapusi K. Keshavan

    IPC分类号： E21B10/573

    CPC分类号： E21B10/52 ,  E21B10/5673 ,  E21B10/573 ,  Y10T29/49947 ,  Y10T29/49963

    摘要： A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.

    摘要翻译： 一种用于钻头的切割元件，其包括至少具有底部和侧部的外部支撑元件; 以及内部可旋转切割元件，其一部分设置在所述外部支撑元件中，其中所述内部可旋转切割元件包括基底和设置在所述基底的上表面上的具有至少0.050英寸的厚度的金刚石切割面; 并且其中公开了从金刚石切割面的上表面到内部可旋转切割元件和外部支撑元件之间的支承表面的距离为0至约0.300英寸。