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1. 发明授权

US07302374B2 Method of designing a drill bit, and bits made using said method 失效
标题翻译：设计钻头的方法和使用所述方法制造的钻头
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
CPC分类号： E21B10/08 , E21B10/16 , E21B10/50
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。

2. 发明授权

US06527068B1 Roller cone drill bit having non-axisymmetric cutting elements oriented to optimize drilling performance 有权
公开(公告)号：US06527068B1
公开(公告)日：2003-03-04
申请号：US09640219
申请日：2000-08-16
申请人： Amardeep Singh , Sujian Huang , Scott McDonough
发明人： Amardeep Singh , Sujian Huang , Scott McDonough
IPC分类号： E21B1008
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.

3. 发明授权

US06827161B2 Roller cone drill bit having non-axisymmetric cutting elements oriented to optimize drilling performance 失效
标题翻译：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
申请人： Amardeep Singh , Sujian Huang , Scott McDonough
发明人： Amardeep Singh , Sujian Huang , Scott McDonough
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。

4. 发明申请

US20080071509A1 METHOD OF DESIGNING A DRILL BIT, AND BITS MADE USING SAID METHOD 失效
标题翻译：设计钻头的方法，以及使用方法制作的钻头
公开(公告)号：US20080071509A1
公开(公告)日：2008-03-20
申请号：US11945113
申请日：2007-11-26
申请人： Amardeep Singh , Sujian Huang , Scott McDonough
发明人： Amardeep Singh , Sujian Huang , Scott McDonough
IPC分类号： G06G7/48
CPC分类号： E21B10/08 , E21B10/16 , E21B10/50
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

5. 发明申请

US20050051361A1 Method of designing a drill bit, and bits made using said method 失效
标题翻译：设计钻头的方法和使用所述方法制造的钻头
公开(公告)号：US20050051361A1
公开(公告)日：2005-03-10
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： E21B10/16 , E21B10/36
CPC分类号： E21B10/08 , E21B10/16 , E21B10/50
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

6. 发明申请

US20060213692A1 Hydro-lifter rock bit with PDC inserts 失效
公开(公告)号：US20060213692A1
公开(公告)日：2006-09-28
申请号：US11442520
申请日：2006-05-26
申请人： Amardeep Singh , Quan Nguyen , Sujian Huang
发明人： Amardeep Singh , Quan Nguyen , Sujian Huang
IPC分类号： E21B10/00
CPC分类号： E21B10/52 , E21B10/16 , E21B10/18 , E21B17/1092
摘要： A novel 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 troublesome 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. Another inventive feature is the inclusion of 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.

7. 发明授权

US06856949B2 Wear compensated roller cone drill bits 有权
标题翻译：磨损补偿辊锥钻头
公开(公告)号：US06856949B2
公开(公告)日：2005-02-15
申请号：US10443196
申请日：2003-05-22
申请人： Amardeep Singh , Sujian Huang
发明人： Amardeep Singh , Sujian Huang
IPC分类号： E21B10/16 , G06G7/48 , E21B12/02
CPC分类号： E21B10/16
摘要： A method for designing a drill bit that has at least one roller cone and a plurality of cutting elements, including selecting initial bit design parameters. Drilling simulations are then used to determine wear, and the simulated drill bit is changed to reflect the determined wear. Then, at least one design parameter is adjusted. The simulation, determination, change of the simulated drill bit, and adjustment may be repeated until at least one performance parameter of the drill bit is optimized. A drill bit can be designed using such a method.
摘要翻译：一种用于设计具有至少一个辊锥和多个切割元件的钻头的方法，包括选择初始位设计参数。然后使用钻削模拟来确定磨损，并且改变模拟钻头以反映确定的磨损。然后，调整至少一个设计参数。可以重复模拟，确定，模拟钻头的变化和调整，直到钻头的至少一个性能参数被优化为止。可以使用这种方法设计钻头。

8. 发明授权

US06374930B1 Cutting structure for roller cone drill bits 有权
标题翻译：圆锥钻头切割结构
公开(公告)号：US06374930B1
公开(公告)日：2002-04-23
申请号：US09590580
申请日：2000-06-08
申请人： Amardeep Singh , Sujian Huang
发明人： Amardeep Singh , Sujian Huang
IPC分类号： E21B1016
CPC分类号： E21B10/16
摘要： The invention is directed to a roller cone drill for drilling earth formations. The drill bit includes a bit body and a plurality of roller cones attached to the bit body and able to rotate with respect to the bit body. The drill bit further includes a plurality of teeth disposed on each of the roller cones such that the number of teeth on each cone differs by two or fewer from the number of teeth on each of the other cones. In one preferred embodiment, the drill bit includes three roller cones. In another preferred embodiment, the teeth of the bit are arranged on each cone so that teeth on adjacent cones intermesh between the cones. In another preferred embodiment, the drill bit includes a first cone, a second cone, and a third cone, and the number of teeth on each of the cones is 17, 16, and 18, respectively.
摘要翻译：本发明涉及一种用于钻探地层的滚子锥钻。钻头包括钻头体和附接到钻头体并能够相对于钻头体旋转的多个滚子锥体。钻头还包括设置在每个圆锥体上的多个齿，使得每个锥体上的齿数与每个其它锥体上的齿数相差两个或更少。在一个优选实施例中，钻头包括三个滚筒锥体。在另一优选实施例中，钻头的齿布置在每个锥体上，使得相邻锥体上的齿相互啮合在锥体之间。在另一优选实施例中，钻头包括第一锥体，第二锥体和第三锥体，并且每个锥体上的齿数分别为17,16和18。

9. 发明授权

US07341119B2 Hydro-lifter rock bit with PDC inserts 失效
标题翻译：带PDC插入件的升降器钻头
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。

10. 发明申请

US20050133260A1 Wear compensated roller cone drill bits 审中-公开
标题翻译：磨损补偿辊锥钻头
公开(公告)号：US20050133260A1
公开(公告)日：2005-06-23
申请号：US11058641
申请日：2005-02-15
申请人： Amardeep Singh , Sujian Huang
发明人： Amardeep Singh , Sujian Huang
IPC分类号： E21B10/08 , E21B12/02 , E21B10/36 , G06G7/48
CPC分类号： E21B10/08
摘要： The invention is a drill bit that has a bit body, at least one roller cone attached to the bit body and able to rotate with respect to the bit body, and a plurality of cutting elements disposed on the at least one roller cone. At least one bit design parameter is selected so that the cutting elements wear in a selected manner when drilling an earth formation. The invention is also a method for designing a drill bit that has at least one roller cone and a plurality of cutting elements. The method includes several steps, beginning with selecting initial bit design parameters. The drill bit is then simulated drilling at least one selected earth formation. The wear induced change in the cutting element geometry is determined and the simulated bit is adjusted to reflect the wear. The selecting, simulating, determining, and adjusting are repeated and at least one bit design parameter of the drill bit is adjusted until at least one performance parameter of the drill bit is optimized.
摘要翻译：本发明是一种钻头，其具有钻头体，至少一个辊锥体附接到钻头体并且能够相对于钻头体旋转，以及多个切割元件设置在至少一个辊锥体上。选择至少一个位设计参数，使得当钻地层时，切割元件以选择的方式磨损。本发明也是一种用于设计具有至少一个辊锥和多个切割元件的钻头的方法。该方法包括几个步骤，从选择初始位设计参数开始。然后模拟钻头至少一个选定的地层。确定切削元件几何形状中磨损引起的变化，并调整模拟钻头以反映磨损。重复选择，模拟，确定和调整，并且调整钻头的至少一个钻头设计参数，直到钻头的至少一个性能参数被优化为止。

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