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1. 发明授权

US06719073B2 Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit balling 失效
标题翻译：具有切割结构的单锥形岩石钻头适于改善孔清洁，并减少跟踪和钻头加工
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。

2. 发明授权

US07690446B2 Single cone rock bit having inserts adapted to maintain hole gage during drilling 失效
标题翻译：单锥岩石钻头具有适于在钻孔期间保持孔规的插入件
公开(公告)号：US07690446B2
公开(公告)日：2010-04-06
申请号：US12027194
申请日：2008-02-06
申请人： George B. Witman , Peter Wilson , Scott D. McDonough , Michael A. Siracki
发明人： George B. 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。

3. 发明授权

US06290008B1 Inserts for earth-boring bits 有权
标题翻译：插入钻孔钻头
公开(公告)号：US06290008B1
公开(公告)日：2001-09-18
申请号：US09206827
申请日：1998-12-07
申请人： Gary R. Portwood , Michael A. Siracki
发明人： Gary R. Portwood , Michael A. Siracki
IPC分类号： E21B1000
CPC分类号： E21B10/5676 , E21B10/52
摘要： A polycrystalline diamond enhanced insert is disclosed. The insert includes a body portion adapted for attachment to an earth-boring bit and a top portion for contacting an earthen formation. The top portion of the insert is provided with two different compositions of polycrystalline diamond. In the primary surface of the top portion, a tougher or less wear-resistant polycrystalline diamond layer is provided, whereas a more wear-resistant polycrystalline diamond layer is provided in the remaining region of the top portion. In addition to polycrystalline diamond, polycrystalline boron nitride and other superhard materials also may be used.
摘要翻译：公开了一种多晶金刚石增强型插入件。插入件包括适于附接到钻地钻头的主体部分和用于接触土层的顶部部分。插入件的顶部设置有两种不同的多晶金刚石组合物。在顶部的主表面中，提供更坚韧或更少的耐磨多晶金刚石层，而在顶部的剩余区域中提供更耐磨的多晶金刚石层。除了多晶金刚石之外，还可以使用多晶氮化硼和其他超硬材料。

4. 发明授权

US06227318B1 Superhard material enhanced inserts for earth-boring bits 有权
标题翻译：超硬材料增强了钻孔钻头
公开(公告)号：US06227318B1
公开(公告)日：2001-05-08
申请号：US09206835
申请日：1998-12-07
申请人： Michael A. Siracki
发明人： Michael A. Siracki
IPC分类号： E21B1026
CPC分类号： E21B10/5673 , E21B10/16 , E21B10/52 , E21B10/5676
摘要： Superhard material enhanced inserts include a body portion adapted for attachment to the earth-boring bit and a top portion for contacting an earthen formation to be drilled. The top portion includes a substrate and a layer of superhard material over a portion of the substrate other than in the outer lateral face. For example, superhard material is provided on the leading edge, the leading face, the crest, the trailing edge, and the trailing face, but not on a portion of the outer lateral face of the top portion. Suitable superhard materials include boron nitride and diamond.
摘要翻译：超硬材料增强型插入件包括适于附接到钻地钻头的主体部分和用于接触要钻取的土地层的顶部部分。顶部包括衬底和除了外侧面之外的衬底的一部分上的超硬材料层。例如，超硬材料设置在前缘，前表面，顶部，后缘和后表面上，而不是在顶部的外侧面的一部分上。合适的超硬材料包括氮化硼和金刚石。

5. 发明授权

US5853055A Rock bit with an extended center jet 失效
标题翻译：岩石与一个扩展的中心喷气机
公开(公告)号：US5853055A
公开(公告)日：1998-12-29
申请号：US671517
申请日：1996-06-27
申请人： Michael A. Siracki , Per I. Nese , Alan W. Lockstedt , Dennis Cisneros , Michael S. Oliver , Gary R. Portwood
发明人： Michael A. Siracki , Per I. Nese , Alan W. Lockstedt , Dennis Cisneros , Michael S. Oliver , Gary R. Portwood
IPC分类号： E21B10/16 , E21B10/18
CPC分类号： E21B10/18 , E21B10/16
摘要： A rotary cone bit for drilling bore holes in earth formations whose body has a thread pin end and a dome end from which extend three legs. A cutter cone is rotatably mounted to each leg and is radially oriented about the bit's central axis. Each cutter cone has a gage row of cutting elements extending from the cone surface nearest the mouth and a nose row extending nearest the cone's apex. A center jet for emitting fluid or mud is located on the dome. The jet has a converging nozzle with an exit orifice which extends below a predefined horizontal plane intersected by the cones or cutting elements. The exit orifice has a constant diameter for a length at least equal to its diameter for reducing the diffusion of the fluid or mud flow emitted. Fluid or mud emitted from the center jet travels substantially uninterrupted within a cylindrical space between the cones which is not invaded by any cutting element. This reduced diffusion substantially uninterrupted fluid flow strikes the bore hole bottom with maximum impact energy for enhanced removal of earth formation cuttings.
摘要翻译：一个用于在地层中钻孔的旋转锥形钻头，其主体具有螺纹针端和从其延伸三条腿的圆顶端。切割锥体可旋转地安装到每个支腿上并且围绕钻头的中心轴线径向定向。每个切割锥体具有从最接近嘴部的锥形表面延伸的切割元件的行列，以及最靠近锥体顶点延伸的鼻列。用于喷射流体或泥浆的中心喷射器位于圆顶上。喷射器具有会聚喷嘴，其具有出口孔，该出口孔延伸到与锥体或切割元件相交的预定水平面下方。出口孔具有至少等于其直径的长度的恒定直径，用于减少发射的流体或泥浆流的扩散。从中心射流发射的流体或泥浆在不被任何切割元件侵入的锥体之间的圆柱形空间内基本上不间断地行进。这种减少的扩散基本上不间断的流体流动以最大的冲击能量撞击钻孔底部，以增强地球切屑的去除。

6. 发明授权

US5669459A Nozzle retention system for rock bits 失效
标题翻译：喷砂嘴保持系统
公开(公告)号：US5669459A
公开(公告)日：1997-09-23
申请号：US547123
申请日：1995-10-23
申请人： James L. Larsen , Michael A. Siracki
发明人： James L. Larsen , Michael A. Siracki
IPC分类号： E21B10/18 , E21B10/60 , E21B10/61 , E21B10/62 , E21B9/08
CPC分类号： E21B10/61 , E21B10/18 , E21B10/62
摘要： A nozzle retention receptacle for rotary cone rock bits consists of a nozzle retention receptacle body forming a fluid passage therethrough. The body forms a first upstream entrance end that forms part of a wall of a plenum formed within a rock bit body and a second downstream exit end. The upstream end further forms a mounting interface that circumvents a fluid entrance port to the passage in the nozzle retention receptacle. The port communicates with the fluid plenum in the bit body. The body of the rock bit further forms a nozzle retention receptacle mounting interface that is common to the mounting interface formed by the nozzle retention receptacle.
摘要翻译：用于旋转锥形岩石钻头的喷嘴保持容器由形成通过其的流体通道的喷嘴保持插座主体组成。主体形成第一上游入口端，其形成在钻石钻头体和第二下游出口端内形成的增压室的壁的一部分。上游端还形成安装界面，其将流体入口端口绕过喷嘴保持容器中的通道。该端口与钻头体中的流体通风室相通。岩石的身体还形成了由喷嘴保持容器形成的安装界面通用的喷嘴保持插座安装界面。

7. 发明授权

US5421424A Bowed out chisel insert for rock bits 失效
标题翻译：凿出钻头的凿子插入物
公开(公告)号：US5421424A
公开(公告)日：1995-06-06
申请号：US257592
申请日：1994-06-09
申请人： Gary Portwood , James C. Minikus , Scott D. McDonough , Michael A. Siracki
发明人： Gary Portwood , James C. Minikus , Scott D. McDonough , Michael A. Siracki
IPC分类号： E21B10/16 , E21B10/52
CPC分类号： E21B10/16 , E21B10/52
摘要： A chisel type insert is disclosed having a contoured surface in which the vertical lines located on the surface are bowed outwardly in a convex manner thereby eliminating blend radii from the cutting tip and the high stress concentrations associated therewith.
摘要翻译：公开了一种凿型插入件，其具有轮廓表面，其中位于表面上的垂直线以凸形的方式向外弯曲，从而消除了来自切割尖端的混合半径以及与其相关联的高应力集中。

8. 发明申请

US20110297454A1 ROLLING CUTTER ASSEMBLED DIRECTLY TO THE BIT POCKETS 有权
标题翻译：滚动切割机直接组装到位口袋
公开(公告)号：US20110297454A1
公开(公告)日：2011-12-08
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： E21B10/36 , B23P15/28
CPC分类号： E21B10/633 , B23P15/28
摘要： A drill bit having 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 is disclosed. 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：一种具有钻头体的钻头，从钻头体径向延伸的多个刀片，设置在所述多个刀片上的多个切割器凹槽，设置在所述切割器凹穴之一中的至少一个滚切刀具，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被披露。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。

9. 发明授权

US06460637B1 Engineered enhanced inserts for rock drilling bits 有权
公开(公告)号：US06460637B1
公开(公告)日：2002-10-08
申请号：US09707612
申请日：2000-11-07
申请人： Michael A. Siracki , Chris E. Cawthorne , Per I. Nese , Madapusi K. Keshavan , J. Daniel Belnap , Ronald K. Eyre , Nathan R. Anderson
发明人： Michael A. Siracki , Chris E. Cawthorne , Per I. Nese , Madapusi K. Keshavan , J. Daniel Belnap , Ronald K. Eyre , Nathan R. Anderson
IPC分类号： E21B1036
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.

10. 发明授权

US06336512B1 Drill bit having canted seal 有权
标题翻译：钻头有倾斜密封
公开(公告)号：US06336512B1
公开(公告)日：2002-01-08
申请号：US09495602
申请日：2000-02-01
申请人： Michael A. Siracki , Steven W. Peterson , Chris E. Cawthorne , Quan V. Nguyen
发明人： Michael A. Siracki , Steven W. Peterson , Chris E. Cawthorne , Quan V. Nguyen
IPC分类号： E21B1008
CPC分类号： E21B10/25
摘要： A drill bit having a canted or non-canted leg backface, a canted or non-canted seal in the interface between the cone backface and the shirttail, and a canted seal that can be semi-encapsulated so that there is no straight-line path across the seal.
摘要翻译：具有倾斜或非倾斜腿背面的钻头，锥形背面和衬衫尾部之间的界面中的倾斜或非倾斜密封，以及可以被半封装以使得不存在直线路径的倾斜密封穿过印章。

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