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：US20060100836A1

公开(公告)日：2006-05-11

申请号：US10984950

申请日：2004-11-09

申请人： Amardeep Singh

发明人： Amardeep Singh

IPC分类号： G06G7/48

CPC分类号： E21B10/00

摘要： A method for forecasting performance of a drill bit, that includes obtaining a performance model for the drill bit, using a plurality of bit run records of the drill bit, wherein the obtaining is performed with a multivariate regression, and inputting a set of drilling parameters to the performance model to obtain the performance of the drill bit.

摘要翻译： 一种用于预测钻头的性能的方法，其包括使用所述钻头的多个位运行记录来获得所述钻头的性能模型，其中所述获得以多变量回归进行，以及输入一组钻孔参数 到性能模型获得钻头的性能。

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：US08195438B2

公开(公告)日：2012-06-05

申请号：US10329903

申请日：2002-12-26

申请人： Amardeep Singh ,  Ying Xiang ,  Sujian Huang

发明人： Amardeep Singh ,  Ying Xiang ,  Sujian Huang

IPC分类号： G06G7/48 ,  E21B10/08 ,  E21B10/00 ,  B21K5/04

CPC分类号： E21B10/16 ,  E21B10/08

摘要： New cutting structures for roller cone drill bits are disclosed. 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. Additional aspects of the invention are also disclosed.

摘要翻译： 公开了用于滚子锥钻头的新的切割结构。 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。 还公开了本发明的另外的方面。

公开(公告)号：US20090178856A1

公开(公告)日：2009-07-16

申请号：US12015054

申请日：2008-01-16

申请人： Amardeep Singh ,  Mohammed Boudrare

发明人： Amardeep Singh ,  Mohammed Boudrare

IPC分类号： E21B10/36 ,  E21B10/16

CPC分类号： E21B10/56 ,  E21B10/58

摘要： A drill bit for cutting a borehole having a borehole sidewall, corner and bottom, the drill bit comprises a bit body including a bit axis. In addition, the drill bit comprises a rolling cone cutter mounted on the bit body and adapted for rotation about a cone axis. Further, the drill bit comprises at least one insert having a base portion secured in the rolling cone cutter and having a cutting portion extending therefrom. The cutting portion of the at least one insert has a cutting surface including at least one flute.

摘要翻译： 一种用于切割钻孔的钻头，其具有钻孔侧壁，角部和底部，所述钻头包括具有钻头轴线的钻头体。 此外，钻头包括安装在钻头体上并适于围绕锥体轴线旋转的滚动锥切割器。 此外，钻头包括至少一个插入件，其具有固定在滚动锥形切割器中并具有从其延伸的切割部分的基部。 至少一个插入件的切割部分具有包括至少一个凹槽的切割表面。

公开(公告)号：US20070034411A1

公开(公告)日：2007-02-15

申请号：US11203863

申请日：2005-08-15

申请人： Amardeep Singh

发明人： Amardeep Singh

IPC分类号： E21B10/16

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。

公开(公告)号：US20070017709A1

公开(公告)日：2007-01-25

申请号：US11184719

申请日：2005-07-19

申请人： Amardeep Singh

发明人： Amardeep Singh

IPC分类号： E21B10/08

CPC分类号： E21B10/20 ,  E21B10/16 ,  E21B10/22

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。

公开(公告)号：US06997273B2

公开(公告)日：2006-02-14

申请号：US10295343

申请日：2002-11-15

申请人： Amardeep Singh

发明人： Amardeep Singh

IPC分类号： E21B10/52 ,  E21B10/58

CPC分类号： E21B10/5673 ,  E21B10/52

摘要： The cutter element includes a rounded apex offset from the center line of the insert and having a relatively broad and blunt front face and a narrower, more rounded rear face. The cutter element may be disposed in the outermost inner row of a rolling cone cutter of a bit with the broader front face facing the borehole side wall so as to resist off center wear and resultant bit whirl. When placed in inner rows and oriented with the broader and flatter front face being the first portion of the cutting surface to engage the borehole, enhancements in bit durability may be achieved, particularly when drilling through formations of multiple hardness.

摘要翻译： 切割器元件包括从插入件的中心线偏移的圆形顶点，并且具有相对宽而钝的前表面和更窄，更圆的后表面。 切割元件可以布置在钻头的滚动锥形切割器的最外侧的行中，其中较宽的前表面面向钻孔侧壁，以便抵抗中心磨损并导致钻头旋转。 当放置在内排中并且定向为更宽且更平坦的前表面是切割表面的第一部分以接合钻孔时，可以实现钻头耐久性的增强，特别是当穿过多个硬度的结构时。

公开(公告)号：US20050087369A1

公开(公告)日：2005-04-28

申请号：US10625985

申请日：2003-07-24

申请人： Amardeep Singh

发明人： Amardeep Singh

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

CPC分类号： E21B10/16 ,  E21B10/52

摘要： A method of forming milled teeth on a roller cone of a milled tooth roller cone rock bit includes shaping a crest of a chisel shaped milled tooth on the roller cone. The crest is shaped such that the crest has a convex profile from one corner to an opposite corner of the crest. Such a crest is adapted to produce at least one of a convex axial stress distribution, a substantially even axial stress distribution, and a substantially smooth axial stress distribution. Further, the forming includes radiusing each of the corners at the ends of the crest of the chisel shaped milled tooth.

摘要翻译： 在铣牙锥形钻头的圆锥上形成磨齿的方法包括在辊锥上形成凿子铣刀齿的顶部。 顶部的形状使得顶部具有从顶角的一个角部到相对的角部的凸形轮廓。 这种顶部适于产生凸轴向应力分布，基本均匀的轴向应力分布和基本平滑的轴向应力分布中的至少一个。 此外，成形包括在凿子铣削齿的顶端的端部处各个角落。