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1.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：US20080164069A1
公开(公告)日：2008-07-10
申请号：US11619395
申请日：2007-01-03
申请人： Scott D. McDonough , Amardeep Singh
发明人： Scott D. McDonough , Amardeep Singh
IPC分类号： E21B10/26
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：US07721824B2
公开(公告)日：2010-05-25
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
IPC分类号： E21B10/20
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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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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5.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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6.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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8.发明授权Drill bit and cutter element having chisel crest with protruding pilot portion 有权具有凿子尖头的钻头和切割元件具有突出的导向部分公开(公告)号：US07950476B2
公开(公告)日：2011-05-31
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
IPC分类号： E21B10/16
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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9.发明授权Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions 有权具有定位在多个不同径向位置的切割元件的滚动钻头公开(公告)号：US07686104B2
公开(公告)日：2010-03-30
申请号：US11536299
申请日：2006-09-28
申请人： Amardeep Singh , Scott D. McDonough , Joshua Gatell , Mohammed Boudrare , Bryce A. Baker , Parveen K. Chandila , Brandon M. Moss , Allen D. White
发明人： Amardeep Singh , Scott D. McDonough , Joshua Gatell , Mohammed Boudrare , Bryce A. Baker , Parveen K. Chandila , Brandon M. Moss , Allen D. White
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： A drill bit for drilling through earthen formations and forming a borehole. In an embodiment, the bit comprises a bit body having a bit axis. In addition, the bit comprises a plurality of cone cutters, each of the cone cutters being mounted on the bit body and adapted for rotation about a different cone axis. Further, at least one cone cutter on the bit comprises an array of cutter elements mounted in a band. Still further, the cutter elements in the array are mounted in a plurality of differing radial positions relative to the bit axis.
摘要翻译： 钻头通过土层钻孔并形成钻孔。 在一个实施例中，该位包括具有位轴的位体。 此外，钻头包括多个锥形切割器，每个锥形切割器安装在钻头体上并且适于围绕不同的锥体轴线旋转。 此外，钻头上的至少一个锥形切割器包括安装在带中的切割器元件阵列。 此外，阵列中的切割元件相对于钻头轴线安装在多个不同的径向位置。
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10.发明授权Drill bit and cutter element having chisel crest with protruding pilot portion 有权具有凿子尖头的钻头和切割元件具有突出的导向部分公开(公告)号：US07631709B2
公开(公告)日：2009-12-15
申请号：US11619395
申请日：2007-01-03
申请人： Scott D. McDonough , Amardeep Singh
发明人： Scott D. McDonough , Amardeep Singh
IPC分类号： E21B10/16
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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