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.

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。

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。

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。

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.

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。

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。

公开(公告)号：US06637527B1

公开(公告)日：2003-10-28

申请号：US09590578

申请日：2000-06-08

申请人： Amardeep Singh ,  Sujian Huang

发明人： Amardeep Singh ,  Sujian Huang

IPC分类号： E21B1000

CPC分类号： E21B10/50 ,  E21B10/16 ,  E21B10/52

摘要： The invention relates to a roller cone drill bit 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. Each roller cone of the bit includes a truncated apex and a side surface. The drill bit further includes a plurality of cutting elements disposed on the side surface of each cone. The cutting elements on at least one cone are arranged such that at least one cutting element on that cone extends past an axis of rotation of the bit body as the bit is rotated. In one embodiment, the drill bit includes three cones and the cutting elements are arranged on the cones so that cutting elements on adjacent cones intermesh between the cones.

摘要翻译： 本发明涉及一种用于钻探地层的滚子锥钻头。 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。 钻头的每个滚子锥体包括截顶体和侧面。 钻头还包括设置在每个锥体的侧表面上的多个切割元件。 至少一个锥体上的切割元件布置成使得当钻头旋转时，该锥体上的至少一个切割元件延伸穿过钻头体的旋转轴线。 在一个实施例中，钻头包括三个锥体，并且切割元件布置在锥体上，使得相邻锥体上的切割元件在锥体之间相互啮合。

公开(公告)号：US06612384B1

公开(公告)日：2003-09-02

申请号：US09590577

申请日：2000-06-08

申请人： Amardeep Singh ,  Ying Xiang ,  Sujian Huang

发明人： Amardeep Singh ,  Ying Xiang ,  Sujian Huang

IPC分类号： E21B1016

CPC分类号： E21B10/16 ,  E21B10/08

摘要： New cutting structures for roller cone drill bits. In one aspect, a drill bit includes a bit body, roller cones attached to the bit body and able to rotate with respect to the bit body, and a plurality of cutting elements disposed on each of the roller cones, such that axial force on the bit during drilling is substantially balanced between the cones. In another aspect, a drill bit includes a plurality of cutting elements disposed on each roller cone such that the amount of work performed by each cone during drilling is substantially the same as the amount of work performed by each of the other cones. In yet another aspect, a drill bit includes a plurality of cutting elements disposed on each roller cone such that distribution of axial force on the bit is optimized.

摘要翻译： 滚子锥钻头的新切割结构。 在一个方面，钻头包括钻头体，附接到钻头体并能够相对于钻头体旋转的滚子锥体，以及设置在每个滚子锥体上的多个切割元件，使得轴向力 在钻孔期间钻头之间基本上在锥体之间平衡。 在另一方面，钻头包括设置在每个辊锥体上的多个切割元件，使得在钻孔期间由每个锥体执行的工作量与由每个其它锥体执行的工作量基本相同。 在另一方面，钻头包括设置在每个辊锥体上的多个切割元件，使得在钻头上的轴向力的分布被优化。

公开(公告)号：US06601660B1

公开(公告)日：2003-08-05

申请号：US09589999

申请日：2000-06-08

申请人： Ying Xiang ,  Amardeep Singh ,  Sujian Huang

发明人： Ying Xiang ,  Amardeep Singh ,  Sujian Huang

IPC分类号： E21B1008

CPC分类号： E21B10/16

摘要： Cutting structures for roller cone drill bits are disclosed. One aspect is a drill bit which 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 bit further includes a plurality of cutting elements arranged on each of the roller cones so that cutting elements on adjacent cones intermesh between the adjacent cones. The cutting elements are arranged so that a rotation speed of each cone differs by less than about 7% from the rotation speed of each of the other cones during drilling. Another aspect is a drill bit which 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 bit also includes a plurality of cutting elements arranged on each of the roller cones so that cutting elements on adjacent cones intermesh between the adjacent cones. In this aspect, at least one of the cutting elements on each cone comprises a gage cutting element, and the gage cutting elements on each cone are arranged so that the scraping distance of the gage cutting elements on each cone is substantially the same as the scraping distance of the gage cutting elements on each of the other cones.

摘要翻译： 公开了滚子锥钻头的切割结构。 一个方面是一种钻头，其包括钻头体，以及多个连接到钻头体并能够相对于钻头体旋转的滚子锥体。 钻头还包括布置在每个滚子锥体上的多个切割元件，使得相邻锥体上的切割元件在相邻锥体之间相互啮合。 切割元件布置成使得每个锥体的旋转速度与钻孔期间的每个其它锥体的旋转速度相差小约7％。 另一方面是一种钻头，其包括钻头体，以及附接到钻头体并能够相对于钻头体旋转的多个滚子锥体。 钻头还包括布置在每个滚子锥体上的多个切割元件，使得相邻锥体上的切割元件在相邻锥体之间相互啮合。 在这方面，每个锥体上的至少一个切割元件包括量规切割元件，并且每个锥体上的计量切割元件被布置成使得每个锥体上的计量切割元件的刮削距离基本上与刮削 每个其他锥体上的量具切割元件的距离。