公开(公告)号：US08991523B2

公开(公告)日：2015-03-31

申请号：US13152626

申请日：2011-06-03

申请人： Yuelin Shen ,  Youhe Zhang ,  Yuri Burhan ,  Michael A. Siracki ,  Mahavir Nagaraj ,  Bala Durairajan ,  Scott D. McDonough ,  Peter Thomas Cariveau

发明人： Yuelin Shen ,  Youhe Zhang ,  Yuri Burhan ,  Michael A. Siracki ,  Mahavir Nagaraj ,  Bala Durairajan ,  Scott D. McDonough ,  Peter Thomas Cariveau

IPC分类号： E21B10/08 ,  E21B10/633 ,  B23P15/28

CPC分类号： E21B10/633 ,  B23P15/28

摘要： A drill bit includes a bit body, a plurality of blades extending radially from the bit body, a plurality of cutter pockets disposed on the plurality of blades, at least one rolling cutter disposed in one of the cutter pockets, wherein each rolling cutter has a substrate, a cutting face, a cutting edge, and a side surface, and at least one blocker positioned adjacent to each of the at least one rolling cutters on a leading face of the blade, wherein each blocker has a retention end and an attachment end. The retention end of each blocker is positioned adjacent to a portion of the cutting face of each rolling cutter to retain the rolling cutter in the cutter pocket and the attachment end is attached to a portion of the blade.

摘要翻译： 钻头包括钻头体，从钻头体径向延伸的多个刀片，设置在多个刀片上的多个切割器凹槽，设置在其中一个切割器凹穴中的至少一个滚刀，其中每个滚切刀具有 基板，切割面，切割边缘和侧表面;以及至少一个阻挡件，其邻近于所述刀片的前表面上的所述至少一个滚动切割器中的每一个定位，其中每个阻挡件具有保持端和附接端 。 每个阻塞器的保持端定位成与每个滚动切割器的切割面的一部分相邻，以将滚动切割器保持在切割器凹槽中，并且附接端附接到叶片的一部分。

公开(公告)号：US20140360789A1

公开(公告)日：2014-12-11

申请号：US14369469

申请日：2012-12-19

申请人： Michael A. Siracki ,  Michael G. Azar

发明人： Michael A. Siracki ,  Michael G. Azar

IPC分类号： E21B10/08 ,  E21B10/14

CPC分类号： E21B10/43 ,  E21B10/14 ,  E21B10/573 ,  E21B2010/425

摘要： A downhole cutting tool may include a cutting element support, structure having a plurality of cutter pockets formed therein; and a plurality of rotatable cutters disposed in the plurality of cutter pockets, wherein at least one rotatable cutter is spaced from another rotatable cutter on the cutting element support structure by at least one-quarter of the diameter of the at least one rotatable cutter.

摘要翻译： 井下切割工具可以包括切割元件支撑件，其中形成有多个切割凹坑; 以及多个可旋转切割器，其设置在所述多个切割器凹口中，其中至少一个可旋转切割器与所述切割元件支撑结构上的另一可旋转切割器间隔开所述至少一个可旋转切割器的直径的至少四分之一。

公开(公告)号：US07401668B2

公开(公告)日：2008-07-22

申请号：US11501472

申请日：2006-08-09

申请人： George Bodo Witman ,  Peter Wilson ,  Scott D. McDonough ,  Michael A. Siracki

发明人： George Bodo Witman ,  Peter Wilson ,  Scott D. McDonough ,  Michael A. Siracki

IPC分类号： E21B10/16

CPC分类号： E21B10/52 ,  E21B10/08 ,  E21B17/1092

摘要： A roller cone drill bit is disclosed which includes a bit body adapted to be coupled to a drill string. A bearing journal depends from the bit body. A single roller cone is rotatably attached to the bearing journal. The roller cone has a plurality of inserts disposed at selected positions about the cone. The journal defines a rotation angle with respect to an axis of rotation of the bit such that the roller cone includes a wall contact zone and a bottom contact zone. At least one of the inserts disposed in the wall contact zone has an extension portion terminating in a substantially planar upper surface.

摘要翻译： 公开了一种滚子锥钻头，其包括适于联接到钻柱的钻头体。 轴承日志取决于位体。 单个滚子锥体可旋转地附接到轴承轴颈。 辊锥体具有多个插入件，其设置在围绕锥体的选定位置处。 轴颈限定相对于钻头的旋转轴线的旋转角度，使得滚子锥体包括壁接触区域和底部接触区域。 布置在壁接触区域中的插入件中的至少一个具有终止于基本平坦的上表面的延伸部分。

公开(公告)号：US06719073B2

公开(公告)日：2004-04-13

申请号：US10152498

申请日：2002-05-21

申请人： Ying Xiang ,  George B. Witman, IV ,  Michael A. Siracki

发明人： Ying Xiang ,  George B. Witman, IV ,  Michael A. Siracki

IPC分类号： E21B1014

CPC分类号： E21B17/1092 ,  E21B10/16

摘要： A roller cone drill bit is disclosed which includes a bit body adapted to be coupled to a drill string, a bearing journal depending from the bit body and a single roller cone rotatably attached to the journal. The roller cone has a plurality of inserts disposed thereon. In one aspect, the inserts have an extension length of at least 0.6 inches. A roller cone drill bit is disclosed, including a bit body, a bearing journal depending from the bit body, and a single roller cone rotatably attached to the journal. The roller cone has a plurality of inserts disposed thereon. In another aspect, the inserts are arranged such that at most about 20 percent of the inserts are crossed substantially at centerlines thereof by any single plane which contains the axis of the cone axis 10 and which crosses at least two of the inserts.

摘要翻译： 公开了一种辊锥钻头，其包括适于联接到钻柱的钻头体，从钻头体悬垂的轴承轴颈和可旋转地附接到轴颈的单个滚子锥体。 辊锥体具有设置在其上的多个插入件。 在一个方面，插入件具有至少0.6英寸的延伸长度。 公开了一种滚子锥钻头，其包括钻头体，从钻头体取出的轴承轴颈和可旋转地附接到轴颈的单个滚子锥体。 辊锥体具有设置在其上的多个插入件。 在另一方面，插入件被布置成使得至多约20％的插入件通过包含锥形轴线10的轴线并且穿过至少两个插入件的任何单个平面基本上在其中心线处交叉。

公开(公告)号：US06651757B2

公开(公告)日：2003-11-25

申请号：US09858857

申请日：2001-05-16

申请人： Dan Belnap ,  Nathan Anderson ,  Michael A. Siracki ,  Sujian Huang

发明人： Dan Belnap ,  Nathan Anderson ,  Michael A. Siracki ,  Sujian Huang

IPC分类号： E21B1000

CPC分类号： E21B10/567 ,  C04B35/111 ,  C04B35/486 ,  C04B35/56 ,  C04B35/58 ,  C04B35/645 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3817 ,  C04B2235/3852 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/5436 ,  C04B2235/80 ,  C04B2235/96 ,  E21B10/52 ,  E21B10/5676

摘要： An insert for a drill bit is disclosed which includes an exposed surface having a contact portion adapted to periodically contact earthen formation. The contact portion includes a polycrystalline diamond material having a hardness in the range of about 2000 HV to about 3000 HV. In some embodiments, the polycrystalline diamond material includes a composite having a first phase material including polycrystalline diamond and a second phase material selected from the group of oxide particulates metal carbides, and metallic particulates, nitrides, and mixtures of thereof.

公开(公告)号：US06419034B1

公开(公告)日：2002-07-16

申请号：US09707830

申请日：2000-11-07

申请人： J. Daniel Belnap ,  Ronald K. Eyre ,  Michael A. Siracki ,  Per I. Nese ,  Madapusi K. Keshavan ,  Nathan R. Anderson

发明人： J. Daniel Belnap ,  Ronald K. Eyre ,  Michael A. Siracki ,  Per I. Nese ,  Madapusi K. Keshavan ,  Nathan R. Anderson

IPC分类号： E21B1056

CPC分类号： E21B17/1092 ,  E21B10/56

摘要： Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock bit and contact the earth formations off center. The ultra hard material layer is thickest at a critical zone which encompasses a major portion of the region of contact between the insert and the earth formation. Transition layers may also be formed between the ultra hard material layer and the protrusion so as to reduce the residual stresses formed on the interface between the ultra hard material and the protrusion.

公开(公告)号：US06361873B1

公开(公告)日：2002-03-26

申请号：US09499929

申请日：2000-02-08

申请人： Zhou Yong ,  Sujian J. Huang ,  Michael A. Siracki ,  Chris Cawthorne ,  J. Albert Sue ,  Ghanshyam Rai ,  Zhigang Fang

发明人： Zhou Yong ,  Sujian J. Huang ,  Michael A. Siracki ,  Chris Cawthorne ,  J. Albert Sue ,  Ghanshyam Rai ,  Zhigang Fang

IPC分类号： B22F300

CPC分类号： E21B10/567 ,  B22F7/06 ,  B22F2005/001 ,  B24D3/06 ,  B24D99/005 ,  C22C26/00 ,  C22C49/00 ,  C22C2204/00 ,  E21B10/52 ,  E21B10/56 ,  E21B10/5676 ,  Y10T428/30

摘要： Composite constructions of this invention comprise an ordered microstructure made up of multiple structural units that can be the same or different, and that comprise at least a first structural phase and a second structural phase. The first structural phase comprises a hard material that is selected from the group consisting of cermet materials, PCD, PCBN and mixtures thereof. The second structural phase is in contact with the first phase and comprises a material that is different than that selected to form the first structural phase. Additionally, the second structural phase is in contact with at least a portion of the first structural phase. Composite constructions of this invention can also have a multi-layer structures comprising two or more layers, wherein at least one of the layers comprises a composite construction having an ordered microstructure made up of the multiple structural units described above.

摘要翻译： 本发明的复合结构包括由相同或不同的多个结构单元构成的并且包括至少第一结构相和第二结构相的有序微结构。 第一结构相包括选自金属陶瓷材料，PCD，PCBN及其混合物的硬质材料。 第二结构相与第一相接触并且包括不同于选择以形成第一结构相的材料。 另外，第二结构相与第一结构相的至少一部分接触。 本发明的复合结构还可以具有包括两层或更多层的多层结构，其中至少一层包括具有由上述多个结构单元构成的有序微结构的复合结构。

公开(公告)号：US5322138A

公开(公告)日：1994-06-21

申请号：US45444

申请日：1993-04-08

申请人： Michael A. Siracki

发明人： Michael A. Siracki

IPC分类号： E21B10/52 ,  E21B10/56 ,  E21B10/58

CPC分类号： E21B10/52 ,  E21B10/56

摘要： A tungsten carbide chisel insert for rock bits is disclosed having a cylindrical base section and a cutting tip section, the top of the tip section having an elongated crest, the remainder of the cutting tip section below the crest is a contoured surface formed having cross-sections being shaped as to provide for better overall performance.

摘要翻译： 公开了一种用于岩屑的碳化钨凿子插入件，其具有圆柱形基部和切割尖端部分，顶端部分的顶部具有细长的顶部，切割尖端部分在顶部下方的其余部分是形成有横截面的轮廓表面， 这些部分被成形为提供更好的整体性能。