公开(公告)号：US20110031033A1

公开(公告)日：2011-02-10

申请号：US12851874

申请日：2010-08-06

申请人： Nephi A. Mourik ,  Peter Cariveau ,  Federico Bellin ,  Yi Fang

发明人： Nephi A. Mourik ,  Peter Cariveau ,  Federico Bellin ,  Yi Fang

IPC分类号： E21B10/46

CPC分类号： E21B10/567 ,  B22F2207/01 ,  B22F2207/13 ,  C22C26/00 ,  C22C2026/006 ,  C22C2026/008 ,  C22C2204/00 ,  E21B10/36 ,  E21B10/52 ,  E21B10/55 ,  E21B10/5673 ,  E21B10/60 ,  E21B2010/565

摘要： An insert for a drill bit may include a metallic carbide body; an outer layer of polycrystalline diamond material on the outermost end of the insert, the polycrystalline diamond material comprising a plurality of interconnected first diamond grains and a first binder material in interstitial regions between the interconnected first diamond grains; and at least one transition layer between the metallic carbide body and the outer layer, the at least one transition layer comprising a composite of second diamond grains, first metal carbide particles, and a second binder material, wherein the second diamond grains have a larger grain size than the first diamond grains.

摘要翻译： 用于钻头的插入件可以包括金属碳化物体; 所述多晶金刚石材料在所述互连的第一金刚石晶粒之间的间隙区域中包括多个互连的第一金刚石晶粒和第一粘合剂材料; 以及所述金属碳化物体和所述外层之间的至少一个过渡层，所述至少一个过渡层包括第二金刚石晶粒，第一金属碳化物颗粒和第二粘合剂材料的复合物，其中所述第二金刚石晶粒具有较大的晶粒 尺寸比第一颗金刚石颗粒大。

公开(公告)号：US20060157279A1

公开(公告)日：2006-07-20

申请号：US11037553

申请日：2005-01-18

申请人： Peter Cariveau ,  Bala Durairajan ,  Sujian Huang

发明人： Peter Cariveau ,  Bala Durairajan ,  Sujian Huang

IPC分类号： E21B7/00 ,  E21B10/42

CPC分类号： E21B10/43 ,  E21B10/54

摘要： A fixed-head drill bit includes a bit body having a plurality of cutting elements and at least one wear knuckle disposed on the bit body. Each cutting element includes a cutting surface defining a swept cutting profile when the bit is rotated about an axis. The at least one wear knuckle is positioned at least partially within and extending at least partially outside a selected one or more of the swept cutting profiles, allowing the fixed-head drill bit to wear into a more stable configuration.

摘要翻译： 固定头钻头包括具有多个切割元件的钻头体和设置在钻头体上的至少一个磨损指节。 每个切割元件包括当钻头围绕轴线旋转时限定扫掠切割轮廓的切割表面。 所述至少一个磨损指关节至少部分地位于并且至少部分地延伸到所选择的一个或多个扫掠切割轮廓外部，从而允许固定头钻头磨损成更稳定的构型。

公开(公告)号：US06679342B2

公开(公告)日：2004-01-20

申请号：US10214020

申请日：2002-08-07

申请人： Gary Ray Portwood ,  Chris Edward Cawthorne ,  Robert Denton ,  Robert H. Slaughter, Jr. ,  Roger Didericksen ,  Peter Cariveau

发明人： Gary Ray Portwood ,  Chris Edward Cawthorne ,  Robert Denton ,  Robert H. Slaughter, Jr. ,  Roger Didericksen ,  Peter Cariveau

IPC分类号： E21B1000

CPC分类号： E21B10/25 ,  F16C21/00 ,  F16C33/7836 ,  F16C33/7896 ,  F16C2352/00 ,  Y10S277/928

摘要： A drill bit for use in a borehole at least partially containing drilling fluid includes a bit body having at least two bit components, including at least one leg, the leg having a journal segment, and a roller cone rotatably mounted upon the journal segment and forming at least one bearing cavity therebetween. Also included is an annular primary seal disposed between the leg and the roller cone, an annular secondary seal disposed between the leg and the roller cone and between the annular primary seal and the borehole and an annular space disposed between the annular primary seal and the annular secondary seal, the annular space at least partially containing fluid and being in substantially absolute fluid isolation from the bearing cavity and a conduit for permitting the flow of fluid from the annular space to the borehole. The annular secondary seal may be primarily elastomeric and a passage for permitting the flow of fluid may further permit the flow of fluid from the borehole to the annular space. The annular space may at least partially include a grease possessing a water washout value of under approximately 50% per ASTM D-4049 water spray test for lubrication characteristics and the grease may include a polymer tackifier of between approximately 1% and approximately 5% by weight.

摘要翻译： 用于至少部分地包含钻井流体的钻孔中的钻头包括具有至少两个钻头部件的钻头体，所述钻头体包括至少一个腿部，所述腿部具有轴颈部分，以及可旋转地安装在所述轴颈部段上并形成 其间具有至少一个轴承腔。 还包括设置在腿和辊锥之间的环形主密封件，设置在腿和辊锥之间以及环形主密封件和钻孔之间的环形次级密封件，以及设置在环形主密封件和环形主密封件之间的环形空间 第二密封件，至少部分地包含流体并且与轴承腔基本上绝对的流体隔离的环形空间和用于允许流体从环形空间流到钻孔的导管。 环形二次密封件可以主要是弹性体，并且用于允许流体流动的通道可以进一步允许流体从钻孔流到环形空间。 环形空间可以至少部分地包括具有低于大约50％的水冲洗值的润滑脂，其根据ASTM D-4049喷水试验进行润滑特性，并且润滑脂可以包括约1重量％和约5重量％之间的聚合物增粘剂 。

公开(公告)号：US06244364B1

公开(公告)日：2001-06-12

申请号：US09236147

申请日：1999-01-22

申请人： Peter Cariveau ,  Robert Slaughter ,  Zhigang Fang

发明人： Peter Cariveau ,  Robert Slaughter ,  Zhigang Fang

IPC分类号： E21B1036

CPC分类号： E21B10/52

摘要： An earth-boring device such as a drill bit is disclosed. The earth boring device includes a rotary main cutting structure, an insert on the main cutting structure. The insert is formed of a composition having tungsten carbide and cobalt. The cobalt makes up less than approximately 9% by weight of the composition. The composition has a Rockwell A hardness greater than approximately an Hmin as determined by the following formula: Hmin=91.1−0.63X, where X represents a cobalt content by weight of the composition.

摘要翻译： 公开了一种诸如钻头的钻孔装置。 钻孔装置包括旋转主切割结构，主切割结构上的刀片。 插入物由具有碳化钨和钴的组合物形成。 钴占组合物重量的不到约9％。 该组合物的洛氏硬度大于由下式确定的大约Hmin：Hmin = 91.1-0.63X，其中X表示组合物重量的钴含量。

公开(公告)号：US08241556B2

公开(公告)日：2012-08-14

申请号：US12583005

申请日：2009-08-11

申请人： David Rosal ,  Scott M. Packer ,  Russell J. Steel ,  Peter Cariveau ,  John Williams ,  Lance Richman

发明人： David Rosal ,  Scott M. Packer ,  Russell J. Steel ,  Peter Cariveau ,  John Williams ,  Lance Richman

IPC分类号： B23K20/12

CPC分类号： B23K20/1255

摘要： A tool is provided that is capable of friction stir processing, friction stir mixing, and friction stir welding of high melting temperature and low melting temperature materials, wherein the collar is now divided into at least an inner and an outer collar coupled to the shank and the FSW tip, wherein new thermal barriers enable expansion of the inner collar to be directed inward to thereby create compression on the FSW tip instead of allowing the FSW tip to become loose in the tool at elevated temperatures.

摘要翻译： 提供了能够进行摩擦搅拌处理，摩擦搅拌混合和高熔点温度和低熔点材料的摩擦搅拌焊接的工具，其中颈圈现在被分成至少一个连接到柄部的内部和外部轴环， FSW尖端，其中新的热障可以使内部轴环膨胀以向内引导，从而在FSW尖端上产生压缩，而不是允许FSW尖端在升高的温度下在工具中松动。

公开(公告)号：US20070093996A1

公开(公告)日：2007-04-26

申请号：US11583668

申请日：2006-10-19

申请人： Peter Cariveau ,  Bala Durairajan

发明人： Peter Cariveau ,  Bala Durairajan

IPC分类号： G06G7/48

CPC分类号： E21B10/55

摘要： A method for designing a drill bit including characterizing a plurality of formation segments, identifying relevant characteristics for drilling in the characterized formation segments, prioritizing at least two of the identified relevant characteristics based upon the characterizing of the formation segments, and selecting a drill bit design based upon the prioritizing.

摘要翻译： 一种用于设计钻头的方法，包括表征多个形成段，识别在特征化地层段中钻孔的相关特征，基于形成段的特征确定所识别的相关特征中的至少两个，以及选择钻头设计 基于优先级。

公开(公告)号：US20060254829A1

公开(公告)日：2006-11-16

申请号：US11129060

申请日：2005-05-13

申请人： Peter Cariveau

发明人： Peter Cariveau

IPC分类号： E21B10/36

CPC分类号： E21B10/42

摘要： A drill bit with a drill bit body having a cutting structure face. A pin is formed on the drill bit body for attaching the drill bit body to a drill string. The pin has a first central axis to be aligned with the drill string when attached and the cutting structure face has a second central axis. The second central axis is misaligned relative to the first central axis.

公开(公告)号：US20060180356A1

公开(公告)日：2006-08-17

申请号：US11329976

申请日：2006-01-11

申请人： Bala Durairajan ,  Peter Cariveau ,  Sujian Huang

发明人： Bala Durairajan ,  Peter Cariveau ,  Sujian Huang

IPC分类号： E21B10/36

CPC分类号： G06F17/5009 ,  E21B10/42

摘要： A fixed cutter drill bit and a method for designing a fixed cutter drill bit includes simulating the fixed cutter drill bit drilling in an earth formation. A performance characteristic of the simulated fixed cutter drill bit is determined. A side rake angle distribution of the cutters is adjusted at least along a cone region of a blade of the fixed cutter drill bit to change the performance characteristic of the fixed cutter drill bit.

摘要翻译： 一种固定式切割钻头和一种用于设计固定式切割钻头的方法包括模拟地层中固定的切割钻头钻孔。 确定模拟固定刀具钻头的性能特征。 至少沿着固定刀具钻头的刀片的锥形区域调整刀具的侧倾角分布，以改变固定刀具钻头的性能特性。

公开(公告)号：US20060096782A1

公开(公告)日：2006-05-11

申请号：US11312075

申请日：2005-12-19

申请人： James Neville ,  James Larsen ,  Steven Peterson ,  Manikiran Bandi ,  Alan Lockstedt ,  Peter Cariveau ,  Alysia White ,  Anthony Griffo ,  Michael Siracki

发明人： James Neville ,  James Larsen ,  Steven Peterson ,  Manikiran Bandi ,  Alan Lockstedt ,  Peter Cariveau ,  Alysia White ,  Anthony Griffo ,  Michael Siracki

IPC分类号： E21B7/00 ,  E21B10/12

CPC分类号： E21B10/25 ,  Y10S277/926 ,  Y10S277/928

摘要： Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit. Surface features, on the seal or the drill bit, can be provided to offset the relief port opening from the rock bit so that it is not blocked off. The seal can include a valve mechanism to provide a further degree of control over fluid passage through the relief port.

摘要翻译： 本发明的自卸式密封件包括具有第一密封表面和用于与相应的钻头密封表面接触的第二密封表面的弹性体密封体。 密封件包括一对外表面，每个外表面沿密封体在第一和第二密封表面之间延伸。 密封件包括一个或多个卸载口，其设置成穿过密封体并具有通过每个密封体外表面的开口。 泄压口可以被特别地构造，例如具有恒定或可变尺寸的不同直径部分，以在密封件被装载在钻头内时通过密封体提供对压力平衡的程度的控制。 密封件可以包括设置在泄放口内的元件，例如固体，管状或多孔的，以便当密封件装载在钻头内时，通过密封件提供对压力平衡的进一步期望程度的控制。 可以提供在密封件或钻头上的表面特征以将卸载口开口偏离岩石钻头，使得其不被堵塞。 密封件可以包括阀机构，以进一步控制通过排放口的流体通道。