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公开(公告)号：US07549490B2
公开(公告)日：2009-06-23
申请号：US11557226
申请日：2006-11-07
申请人： Scott D. McDonough , Amardeep Singh
发明人： Scott D. McDonough , Amardeep Singh
IPC分类号： E21B10/08
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。
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公开(公告)号：US20080201115A1
公开(公告)日：2008-08-21
申请号：US11969713
申请日：2008-01-04
申请人： Amardeep Singh , Scott D. McDonough
发明人： Amardeep Singh , Scott D. McDonough
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, wherein the first group of adjacent cutting elements have a different extension length than the second group of adjacent cutting elements, 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 of 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，使得第一组相邻的切割元件以第一间距布置，并且第二组相邻的切割元件以该行中的第二间距排列，其中第一组 相邻的切割元件具有与第二组相邻的切割元件不同的延伸长度，评估行中的多个切割元件的俯仰图案，并且基于俯仰的评估来修改多个切割元件中的至少一个 多个切割元件的图案。
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13.发明授权公开(公告)号：US07292967B2
公开(公告)日：2007-11-06
申请号：US10854067
申请日：2004-05-26
IPC分类号： G06G7/48
摘要： A method for evaluating a cutting arrangement for a drill bit includes selecting a cutting element arrangement for the drill bit and calculating a score for the cutting arrangement. This method may be used to evaluate the cutting efficiency of various drill bit designs. In one example, this method is used to calculate a score for an arrangement based on a comparison of an expected bottom hole pattern for the arrangement with a preferred bottom hole pattern. The use of this method has lead to roller cone drill bit designs that exhibit reduce tracking over prior art bits.
摘要翻译： 用于评估钻头的切割装置的方法包括：选择用于钻头的切割元件布置并计算切割布置的得分。 该方法可用于评估各种钻头设计的切割效率。 在一个示例中，该方法用于基于用于布置的预期底孔图案与优选底孔图案的比较来计算布置的得分。 这种方法的使用导致了滚筒锥钻钻头设计，显示出比现有技术钻头减少的跟踪。
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14.发明申请Drill Bit and Cutter Element Having Chisel Crest With Protruding Pilot Portion 有权钻头和刀具元件具有凿子突起与突出的引导部分公开(公告)号：US20100059286A1
公开(公告)日：2010-03-11
申请号：US12618997
申请日：2009-11-16
申请人： Scott D. McDonough , Amardeep Singh
发明人： Scott D. McDonough , Amardeep Singh
摘要： A rolling cone drill bit includes a cutter element having a cutting portion with a chisel crest and a pilot portion extending beyond the chisel crest. The pilot portion includes a cutting surface that may be generally conical, or form a second chisel crest. The cutting tip of the pilot portion is supported by buttress portions which emerge from and extend beyond the flanks of the chisel crest to provide additional strength and support for the material of the pilot portion that extends beyond the height of the chisel crest.
摘要翻译： 滚动圆锥钻头包括具有切割部分的切割器元件，切割部分具有凿子顶部和延伸超过凿顶部的引导部分。 导向部分包括可以是大致圆锥形的切割表面，或形成第二凿顶。 导向部分的切割尖端由从凿顶部的侧面露出并延伸超过凿顶部的侧面的支撑部分支撑，以提供延伸超过凿顶高度的先导部分的材料的附加强度和支撑。
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公开(公告)号：US07571083B2
公开(公告)日：2009-08-04
申请号：US11945113
申请日：2007-11-26
IPC分类号： G06G7/48
摘要： A method for designing a drill bit that involves simulating a drill bit having cutting elements disposed thereon is provided. In particular, the method involves determining at least one drilling performance parameter while simulating drilling in a selected earth formation.
摘要翻译： 提供了一种用于设计涉及模拟具有设置在其上的切割元件的钻头的钻头的方法。 特别地，该方法包括在模拟选定的地层中的钻孔时确定至少一个钻井性能参数。
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公开(公告)号：US07798258B2
公开(公告)日：2010-09-21
申请号：US11947226
申请日：2007-11-29
申请人： Amardeep Singh , Mohammed Boudrare
发明人： Amardeep Singh , Mohammed Boudrare
IPC分类号： E21B10/56
摘要： A drill bit for cutting a borehole comprises a bit body including a bit axis. In addition, the drill bit comprises a rolling cone cutter mounted on the bit body. Further, the drill bit comprises a cutter element having a base portion with a diameter and a cutting portion extending therefrom. The cutting portion comprising a first pair of flanking surfaces that taper towards one another to form a first elongate chisel crest, and a second pair of flanking surfaces that taper towards one another to form a second elongate chisel crest that intersects the first elongate chisel crest in top view. The first crest tangent angle at 10% of the diameter measured radially from the central axis on the first elongate chisel crest in profile view is greater than 75° and less than or equal to 90°.
摘要翻译： 用于切割钻孔的钻头包括包括钻头轴线的钻头体。 此外，钻头包括安装在钻头体上的滚动切割刀。 此外，钻头包括具有直径的基部和从其延伸的切割部的切割器元件。 所述切割部分包括朝向彼此逐渐变细以形成第一细长凿顶部的第一对侧面表面，以及朝向彼此成锥形的第二对侧面，以形成与所述第一细长凿顶部相交的第二细长凿顶部 顶视图。 在轮廓视图中，从第一细长凿头顶部的中心轴线径向测量的直径的10％处的第一波峰切线角大于75°且小于或等于90°。
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17.发明授权公开(公告)号：US07370711B2
公开(公告)日：2008-05-13
申请号：US11203863
申请日：2005-08-15
申请人： Amardeep Singh
发明人： Amardeep Singh
CPC分类号： E21B10/16
摘要： A rolling cone drill bit including multiple cones with regions of intermeshing and non-intermeshing cutter elements. In the non-intermeshed regions, an array of cutter elements is disposed about the cone surface in a non-circumferential arrangement with the cutter elements being mounted at differing radial distances from the bit axis. This non-circumferential arrangement, which may be a spiral, multiple spirals, other patterns of offset cutter elements, or a random arrangement, provides a composite cutting profile having substantial width and bottomhole coverage and is free of ridge-producing voids. In certain embodiments, the composite cutting profiles of the arrays at least partially overlap, and may be arranged to cover a portion of or the entire non-intermeshed region on the cones.
摘要翻译： 一种滚动锥钻头，包括具有啮合区域和非啮合切割元件的多个锥体。 在非相互啮合的区域中，切割器元件的阵列以非周向布置围绕锥体表面设置，其中刀具元件以与钻头轴线不同的径向距离安装。 这种非圆周布置（其可以是螺旋状，多个螺旋形的）其它图案的偏置切割器元件或随机布置提供了具有实质宽度和井底覆盖度并且没有产生凸起的空隙的复合切割轮廓。 在某些实施例中，阵列的复合切割轮廓至少部分地重叠，并且可以布置成覆盖锥体上的一部分或整个非啮合区域。
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公开(公告)号：US07341119B2
公开(公告)日：2008-03-11
申请号：US11442520
申请日：2006-05-26
申请人： Amardeep Singh , Quan V. Nguyen , Sujian Huang
发明人： Amardeep Singh , Quan V. Nguyen , Sujian Huang
IPC分类号： E21B10/16
CPC分类号： E21B10/52 , E21B10/16 , E21B10/18 , E21B17/1092
摘要： A rolling cone rock bit includes a plurality of PDC or other cutters mounted to the leg of the drill bit and positioned to cut the corner of the bottomhole. The plurality of cutters may be the primary cutting component at gage diameter, or may be redundant to gage teeth on a rolling cutter that cut to gage diameter. Consequently, the occurrence of undergage drilling from the wear and failure of the gage row on a rolling cutter is lessened. Also included is a mud ramp that creates a large junk slot from the borehole bottom up the drill bit. The resulting pumping action of the drill bit ramp speeds up the removal of chips or drilling cuttings from the bottom of the borehole, reduces the level of hydrostatic pressure at the bottom of the borehole and minimizes the wearing effect of cone inserts regrinding damaging drill cuttings.
摘要翻译： 滚动圆锥岩石钻头包括安装到钻头的腿部并被定位成切割井底角落的多个PDC或其它切割器。 多个切割器可以是以量具直径的主要切割部件，或者可以是切割到规定直径的滚动切割器上的齿轮的多余的。 因此，减少了在轧机上的量规列的磨损和破坏的下行钻孔的发生。 还包括一个泥浆坡道，从钻孔底部向上钻出钻头创建一个大型垃圾槽。 所产生的钻头斜坡的泵送作用加快了从钻孔底部移除切屑或钻屑，降低了钻孔底部的静水压力水平，并最大限度地减少了锥形刀片磨损破坏钻屑的磨损效应。
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公开(公告)号：US07320375B2
公开(公告)日：2008-01-22
申请号：US11184719
申请日：2005-07-19
申请人： Amardeep Singh
发明人： Amardeep Singh
IPC分类号： E21B10/25
摘要： A roller cone drill bit and a method for designing thereof. The roller cone drill bit includes a bit body configured to be coupled to a drill string and a journal depending from the bit body. A split roller cone is rotatably attached to the journal. The split roller cone includes an upper section and a lower section. The upper section has a plurality of cutting elements disposed at selected positions thereon. The lower section has a plurality of cutting elements disposed at selected positions thereon. The lower section is able to rotate independently of the upper section.
摘要翻译： 一种辊锥钻头及其设计方法。 滚子锥钻头包括构造成联接到钻柱和钻头体的轴颈的钻头体。 分离辊锥体可旋转地附接到轴颈。 分裂辊锥体包括上部和下部。 上部具有设置在其上的选定位置的多个切割元件。 下部具有设置在其上的选定位置的多个切割元件。 下部能够独立于上部旋转。
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公开(公告)号：US07302374B2
公开(公告)日：2007-11-27
申请号：US10970808
申请日：2004-10-21
申请人： Amardeep Singh , Sujian Huang , Scott McDonough
发明人： Amardeep Singh , Sujian Huang , Scott McDonough
IPC分类号： G06G7/48
摘要： A method for designing a drill bit that involves simulating a drill bit having cutting elements disposed thereon is provided. In particular, the method involves determining the axial forces acting on at least one of the cutting elements at a first orientation.
摘要翻译： 提供了一种用于设计涉及模拟具有设置在其上的切割元件的钻头的钻头的方法。 特别地，该方法包括确定在第一方向上作用在至少一个切割元件上的轴向力。
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