Multiple inserts of different geometry in a single row of a bit
    1.
    发明申请
    Multiple inserts of different geometry in a single row of a bit 失效
    在一行的单行中具有不同几何的多个插入

    公开(公告)号:US20060006003A1

    公开(公告)日:2006-01-12

    申请号:US10886474

    申请日:2004-07-07

    IPC分类号: E21B10/00

    CPC分类号: E21B10/08 E21B10/16 E21B10/52

    摘要: A method for designing a roller cone drill bit having a plurality of cutting elements in a row. The method includes defining a pitch pattern for the plurality of cutting elements such that a first group of adjacent cutting elements are arranged in a first pitch and a second group of adjacent cutting elements are arranged in a second pitch in the row; evaluating the pitch pattern of the plurality of cutting elements in the row; and modifying at least one of the plurality of cutting elements, based on the evaluating the pitch pattern of the plurality of cutting elements.

    摘要翻译: 一种用于设计具有一排中的多个切割元件的滚子锥形钻头的方法。 该方法包括限定多个切割元件的间距图案,使得第一组相邻切割元件以第一间距布置,并且第二组相邻切割元件以该列中的第二间距排列; 评估行中的多个切割元件的俯仰图案; 以及基于评估所述多个切割元件的俯仰图案来修改所述多个切割元件中的至少一个。

    Arrangement of Roller Cone Inserts
    3.
    发明申请
    Arrangement of Roller Cone Inserts 失效
    滚筒插入件的布置

    公开(公告)号:US20070114072A1

    公开(公告)日:2007-05-24

    申请号:US11557226

    申请日:2006-11-07

    IPC分类号: E21B10/00

    CPC分类号: E21B10/16 E21B10/52

    摘要: A drill bit having cutting elements disposed on a roller cone surface in a non-linear pattern, wherein at least one of the cutting elements is asymmetrical to its axis of orientation. Also, a method for selecting and adjusting a cutting element orientation based on crater profile geometry which results in increased bottom hole coverage.

    摘要翻译: 一种具有以非线性图案设置在滚子锥面上的切割元件的钻头,其中至少一个切割元件对其取向轴线不对称。 另外,基于火山口轮廓几何形状来选择和调整切割元件取向的方法,其导致井底覆盖率的增加。

    Roller cone drill bit having non-axisymmetric cutting elements oriented to optimize drilling performance
    5.
    发明授权
    Roller cone drill bit having non-axisymmetric cutting elements oriented to optimize drilling performance 失效
    滚子锥钻头具有非轴对称切削元件,以优化钻井性能

    公开(公告)号:US06827161B2

    公开(公告)日:2004-12-07

    申请号:US10352490

    申请日:2003-01-28

    IPC分类号: E21B1016

    CPC分类号: E21B10/08 E21B10/16 E21B10/50

    摘要: A method for optimizing drilling performance of a roller cone drill bit is disclosed. The method includes simulating drilling with the bit in a selected earth formation to determine at least one drilling performance parameter. The orientation of at least one non-axisymmetric cutting element on the bit is adjusted and the simulating the drilling and determining the at least one performance parameter are repeated. The adjusting and simulating the drilling are repeated until the at least one performance parameter is determined to be at an optimum value. In one embodiment, the performance parameter includes rate of penetration.

    摘要翻译: 公开了一种用于优化滚子锥钻头的钻孔性能的方法。 该方法包括利用选定的地层中的钻头模拟钻孔以确定至少一个钻井性能参数。 调整钻头上的至少一个非轴对称切削元件的取向,并重复模拟钻孔并确定至少一个性能参数。 重复调整和模拟钻孔,直到确定至少一个性能参数处于最佳值。 在一个实施例中,性能参数包括穿透速率。

    MULTIPLE INSERTS OF DIFFERENT GEOMETRY IN A SINGLE ROW OF A BIT
    7.
    发明申请
    MULTIPLE INSERTS OF DIFFERENT GEOMETRY IN A SINGLE ROW OF A BIT 失效
    在一个单行中的不同几何的多个插入

    公开(公告)号:US20070192073A1

    公开(公告)日:2007-08-16

    申请号:US11692013

    申请日:2007-03-27

    IPC分类号: E21B10/20

    CPC分类号: E21B10/08 E21B10/16 E21B10/52

    摘要: A method for designing a roller cone drill bit having a plurality of cutting elements in a row. The method includes defining a pitch pattern for the plurality of cutting elements such that a first group of adjacent cutting elements are arranged in a first pitch and a second group of adjacent cutting elements are arranged in a second pitch in the row; evaluating the pitch pattern of the plurality of cutting elements in the row; and modifying at least one of the plurality of cutting elements, based on the evaluating the pitch pattern of the plurality of cutting elements.

    摘要翻译: 一种用于设计具有一排中的多个切割元件的滚子锥形钻头的方法。 该方法包括限定多个切割元件的间距图案,使得第一组相邻切割元件以第一间距布置,并且第二组相邻切割元件以该列中的第二间距排列; 评估行中的多个切割元件的俯仰图案; 以及基于评估所述多个切割元件的俯仰图案来修改所述多个切割元件中的至少一个。

    ROLLING CONE DRILL BIT HAVING NON-UNIFORM LEGS
    8.
    发明申请
    ROLLING CONE DRILL BIT HAVING NON-UNIFORM LEGS 审中-公开
    轧制锥形钻头,具有非均匀性

    公开(公告)号:US20070131457A1

    公开(公告)日:2007-06-14

    申请号:US11610537

    申请日:2006-12-14

    IPC分类号: E21B10/16

    CPC分类号: E21B10/08

    摘要: A drill bit for drilling through earthen formations. In an embodiment, the drill bit comprises a bit body having a bit axis. In addition, the drill bit comprises a first rolling cone cutter mounted on the bit body at a first journal angle and adapted for rotation about a first cone axis. Further, the drill bit comprises a second rolling cone cutter mounted on the bit body at a second journal angle and adapted for rotation about a second cone axis, wherein the second journal angle differs from the first journal angle.

    摘要翻译: 钻头通过土层钻孔。 在一个实施例中,钻头包括具有钻头轴线的钻头体。 此外,钻头包括以第一轴颈角度安装在钻头体上并适于围绕第一锥形轴线旋转的第一滚动锥形切割器。 此外,钻头包括以第二轴颈角度安装在钻头体上并适于围绕第二锥形轴线旋转的第二滚动圆锥切割器,其中第二轴颈角度与第一轴颈角度不同。