公开(公告)号：US07387177B2

公开(公告)日：2008-06-17

申请号：US11582684

申请日：2006-10-18

申请人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Don Q. Nguyen ,  Aaron J. Dick ,  Eric Sullivan ,  Scott Shiqiang Shu

发明人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Don Q. Nguyen ,  Aaron J. Dick ,  Eric Sullivan ,  Scott Shiqiang Shu

IPC分类号： E21B10/22

CPC分类号： E21B10/22 ,  E21B10/25

摘要： An earth boring bit has a bearing pin with a sleeve mounted on it. The sleeve is fixed against rotation but able to float relative to the bearing pin. A cone fits over and forms a bearing surface with the sleeve. The sleeve and bearing pin are configured to have a clearance between them that has a forward portion that progressively decreases in a rearward direction. The clearance progressively decreases in a forward direction from the rearward end of the sleeve. The cone and the sleeve are able to tilt in unison with each other relative to the bearing pin when the bit is loaded.

摘要翻译： 地镗头具有安装在其上的套筒的轴承销。 套筒固定不能旋转，但能相对于轴承销浮动。 锥体装配并与套筒形成支承​​面。 套筒和支承销构造成在它们之间具有间隙，其具有在向后方向上逐渐减小的前部。 间隙从套筒的后端沿向前方向逐渐减小。 当钻头加载时，锥体和套筒能够相对于轴承销彼此一致倾斜。

公开(公告)号：US20080060848A1

公开(公告)日：2008-03-13

申请号：US11939389

申请日：2007-11-13

申请人： Paul Pastusek ,  Eric Sullivan ,  Daryl Pritchard ,  Keith Glasgow ,  Tu Trinh ,  Paul Lutes

发明人： Paul Pastusek ,  Eric Sullivan ,  Daryl Pritchard ,  Keith Glasgow ,  Tu Trinh ,  Paul Lutes

IPC分类号： E21B47/01

CPC分类号： E21B47/00 ,  E21B21/08 ,  E21B47/011

摘要： Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyze the sensor data to develop a severity index, compare the sensor data to at least one adaptive threshold, and modify a data sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.

公开(公告)号：US20070272442A1

公开(公告)日：2007-11-29

申请号：US11708147

申请日：2007-02-16

申请人： Paul Pastusek ,  Eric Sullivan ,  Daryl Pritchard ,  Keith Glasgow ,  Tu Trinh ,  Paul Lutes

发明人： Paul Pastusek ,  Eric Sullivan ,  Daryl Pritchard ,  Keith Glasgow ,  Tu Trinh ,  Paul Lutes

IPC分类号： E21B47/01

CPC分类号： E21B21/08 ,  E21B47/00 ,  E21B47/011

摘要： Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyze the sensor data to develop a severity index, compare the sensor data to at least one adaptive threshold, and modify a data sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.

摘要翻译： 公开了钻头和用于采样与钻头状态相关联的传感器数据的方法。 用于钻探地层的钻头包括钻头体和柄。 柄还包括通过柄的内径形成的中心孔，并且构造成用于接收数据分析模块。 数据分析模块包括多个传感器，存储器和处理器。 处理器被配置为执行计算机指令以通过对多个传感器进行采样来收集传感器数据，分析传感器数据以开发严重性指标，将传感器数据与至少一个自适应阈值进行比较，并且响应于该传感器数据修改数据采样模式 比较。 一种方法包括通过在各种采样模式下采样与钻头状态相关联的多个物理参数并在这些采样模式之间转换来收集传感器数据。

公开(公告)号：US20070256862A1

公开(公告)日：2007-11-08

申请号：US11787693

申请日：2007-04-17

申请人： Jeffrey Lund ,  Nicholas Lyons ,  Eric Sullivan ,  Terry Watts

发明人： Jeffrey Lund ,  Nicholas Lyons ,  Eric Sullivan ,  Terry Watts

IPC分类号： E21B47/00

CPC分类号： G01N29/04 ,  G01N29/265 ,  G01N29/27 ,  G01N29/275 ,  G01N29/28 ,  G01N2291/044 ,  G01N2291/045 ,  G01N2291/101 ,  G01N2291/2634 ,  G01N2291/2636 ,  G01N2291/267 ,  G01N2291/2698

摘要： A method for conducting nondestructive internal inspection of a rotary drill bit used for drilling subterranean formations comprises communicating ultrasonic waves into a drill bit and detecting ultrasonic waves that are reflected by at least a portion of the drill bit. In some embodiments, the waves may be directed into the drill bit from within a longitudinal bore thereof. Reflected waves also may be detected from within the bore. The methods may be used to develop threshold acceptance criteria for classifying drill bits as acceptable or unacceptable to prevent catastrophic failures of drill bits during use. Systems and apparatuses are disclosed for conducting nondestructive ultrasonic inspection of a drill bit used for drilling subterranean formations. The systems and apparatuses may comprise an ultrasonic probe configured for insertion within an internal longitudinal bore of a drill bit. Drill bits are disclosed that are configured to facilitate nondestructive ultrasonic inspection thereof.

摘要翻译： 用于对用于钻探地下地层的旋转钻头进行非破坏性内部检查的方法包括将超声波传播到钻头中并检测由钻头的至少一部分反射的超声波。 在一些实施例中，波浪可以从其纵向孔内引导到钻头中。 也可以从孔内检测出反射波。 这些方法可用于制定用于将钻头分类为可接受或不可接受的阈值接受标准，以防止在使用期间钻头的灾难性故障。 公开了用于对用于钻探地下地层的钻头进行非破坏性超声波检测的系统和装置。 所述系统和装置可以包括构造成用于插入钻头的内部纵向孔内的超声波探头。 公开了钻头，其被配置为便于其非破坏性超声波检查。

公开(公告)号：US07241049B2

公开(公告)日：2007-07-10

申请号：US11003132

申请日：2004-12-03

申请人： Chih Lin ,  Eric Sullivan

发明人： Chih Lin ,  Eric Sullivan

IPC分类号： F16C17/10

CPC分类号： E21B10/24 ,  F16C33/102 ,  F16C2240/40 ,  F16C2240/44

摘要： An earth boring bit has sliding engaging surfaces between a cone assembly and a bearing pin. Micropores are formed in at least one of the engaging surfaces. Each of the micropores has a leading portion and a trailing portion. The leading portion is at a more gradual slope than the trailing portion. The micropores are located in a pattern of a greater density in a region of the engaging surfaces that operate at higher pressures than in other regions.

摘要翻译： 地镗头在锥形组件和轴承销之间具有滑动接合表面。 微孔形成在至少一个接合表面中。 每个微孔具有前导部分和尾部部分。 前导部分处于比后部更渐进的斜度。 在比其他区域更高的压力操作的接合表面的区域中，微孔位于较大密度的图案中。

公开(公告)号：US08616089B2

公开(公告)日：2013-12-31

申请号：US13084078

申请日：2011-04-11

申请人： Heeman Choe ,  John Stevens ,  Eric Sullivan

发明人： Heeman Choe ,  John Stevens ,  Eric Sullivan

IPC分类号： B21K5/04

CPC分类号： E21B10/46 ,  B22D19/14 ,  B22F2005/001 ,  C22C9/01 ,  C22C9/04 ,  C22C14/00 ,  C22C19/00 ,  C22C19/03 ,  C22C26/00 ,  C22C32/00 ,  C22C38/00 ,  E21B10/00

摘要： A method of making an earth-boring rotary drill bit including a bit body configured to carry one or more cutters for engaging a subterranean earth formation. The method includes providing a plurality of hard particles in a mold to define a particle precursor of the bit body. The method also includes infiltrating the particle precursor of the bit body with a molten matrix material comprising a shape memory alloy forming a hard particle-molten matrix material mixture, wherein the hard particles are randomly dispersed within the molten matrix material. The method further includes cooling the molten matrix material to solidify a matrix material and form the bit body comprising a particle-matrix composite material having the plurality of hard particles randomly dispersed throughout the matrix material.

摘要翻译： 一种制造钻孔旋转钻头的方法，该钻头包括构造成承载用于接合地下地层的一个或多个切割器的钻头体。 该方法包括在模具中提供多个硬颗粒以限定钻头体的颗粒前体。 该方法还包括用熔融基质材料渗透钻头体的颗粒前体，所述熔融基质材料包含形成硬颗粒熔融基质材料混合物的形状记忆合金，其中硬颗粒随机分散在熔融基体材料内。 该方法还包括冷却熔融基质材料以固化基质材料并形成钻头体，其包含具有随机分散在整个基体材料中的多个硬颗粒的颗粒 - 基体复合材料。

公开(公告)号：US20090008154A1

公开(公告)日：2009-01-08

申请号：US12166954

申请日：2008-07-02

申请人： Carmel Z. El Hakam ,  Eric Sullivan ,  John F. Bradford, III ,  Don Q. Nguyen

发明人： Carmel Z. El Hakam ,  Eric Sullivan ,  John F. Bradford, III ,  Don Q. Nguyen

IPC分类号： E21B10/00 ,  C22C1/10

CPC分类号： C22C38/04 ,  C21D9/22 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44

摘要： An earth boring bit formed from an alloy comprising a low carbon content and high molybdenum content is disclosed herein. The molybdenum content is greater than about 0.8% to about 1.15% by weight of the alloy. The carbon content may range up to about 0.16% by weight of the alloy. The alloy may further comprise alloy further comprises manganese, phosphorus, sulfur, silicon, nickel, chromium, copper, aluminum, vanadium, and calcium; with the balance being iron. The alloy experiences a relatively flattened hardenability curve and low martinsite formation.

摘要翻译： 本文公开了由包含低碳含量和高钼含量的合金形成的钻孔钻头。 钼含量大于合金重量的约0.8％至约1.15％。 碳含量可以高达合金重量的约0.16％。 合金还可以包含锰，磷，硫，硅，镍，铬，铜，铝，钒和钙; 平衡是铁。 该合金经历相对扁平的淬透性曲线和低的马氏体组成。

公开(公告)号：US20080066970A1

公开(公告)日：2008-03-20

申请号：US11947624

申请日：2007-11-29

申请人： Anton Zahradnik ,  Eric Sullivan ,  R. Smith ,  Daniel Ruff ,  Danielle Roberts ,  Alan Massey

发明人： Anton Zahradnik ,  Eric Sullivan ,  R. Smith ,  Daniel Ruff ,  Danielle Roberts ,  Alan Massey

IPC分类号： E21B3/00

CPC分类号： B23K31/02 ,  E21B10/00 ,  E21B10/42

摘要： A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.

摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。

公开(公告)号：US20080065331A1

公开(公告)日：2008-03-13

申请号：US11939361

申请日：2007-11-13

申请人： Paul Pastusek ,  Eric Sullivan ,  Daryl Pritchard ,  Keith Glasgow ,  Tu Trinh ,  Paul Lutes

发明人： Paul Pastusek ,  Eric Sullivan ,  Daryl Pritchard ,  Keith Glasgow ,  Tu Trinh ,  Paul Lutes

IPC分类号： G01V3/38

CPC分类号： E21B47/00 ,  E21B21/08 ,  E21B47/011

摘要： Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyze the sensor data to develop a severity index, compare the sensor data to at least one adaptive threshold, and modify a data sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.

公开(公告)号：US20070014495A1

公开(公告)日：2007-01-18

申请号：US11183121

申请日：2005-07-15

申请人： Anton Zahradnik ,  Eric Sullivan ,  Don Nguyen ,  Gregory Ricks ,  Christopher Beuershausen ,  Ronnie Jones

发明人： Anton Zahradnik ,  Eric Sullivan ,  Don Nguyen ,  Gregory Ricks ,  Christopher Beuershausen ,  Ronnie Jones

IPC分类号： F16C33/30

CPC分类号： E21B10/20 ,  E21B10/08 ,  E21B10/22

摘要： A roller cone bit has a ball retention system to secure the cones to the head. A radial ball race includes a ball way with a ball plug to keep the balls in the ball race. The ball plug is secured to the head by welding. Any residual stress in the weld region is alleviated by one of several solutions. Material may be selectively removed from the weld, the heat-affected zone, and/or the surrounding area to promote relaxation of residual stress. Alternatively, deflection is imposed and/or heat or vibration is applied to promote relaxation.

摘要翻译： 滚子锥头具有球保持系统以将锥体固定到头部。 径向球赛包括具有球塞的球道，以将球保持在球赛中。 球塞通过焊接固定到头部。 焊接区域的任何残余应力都可以通过几种解决方案之一来缓解。 可以从焊缝，热影响区和/或周围区域选择性地去除材料，以促进残余应力的松弛。 或者，施加偏转和/或施加热或振动以促进放松。