公开(公告)号：US08096372B2

公开(公告)日：2012-01-17

申请号：US11781648

申请日：2007-07-23

申请人： Yuelin Shen ,  Youhe Zhang ,  Sujian Huang ,  Peter T. Cariveau

发明人： Yuelin Shen ,  Youhe Zhang ,  Sujian Huang ,  Peter T. Cariveau

IPC分类号： E21B10/08

CPC分类号： E21B10/5673

摘要： An improved cutter for fixed cutter drill bits includes a base portion with a longitudinal axis that extends through a center of the base portion and a cutting face which is generally centered with the base portion. The cutting face has a periphery edge geometry comprising a first arcuate segment and a second arcuate segment spaced apart and arranged opposite each other with linear edge segments disposed there between forming sides of the cutting face. The cutting face spans a maximum edge-to-edge dimension L in a first direction that corresponds to a major axis of the cutting face. The cutting face spans a maximum edge-to-edge dimension W in a second direction, which is perpendicular to the first direction, and W is less than L.

摘要翻译： 用于固定切割钻头的改进的切割器包括具有延伸穿过基部的中心的纵向轴线的基部和通常与基部中心的切割面。 切割面具有外围边缘几何形状，其包括第一弧形段和间隔开并且彼此相对布置的第二弧形段，线性边缘段设置在切割面的成形侧之间。 切割面在对应于切割面的长轴的第一方向上跨越最大边缘到边缘尺寸L. 切割面在与第一方向垂直的第二方向上跨越最大边缘至边缘尺寸W，并且W小于L.

公开(公告)号：US06446739B1

公开(公告)日：2002-09-10

申请号：US09619114

申请日：2000-07-19

申请人： Lance T. Richman ,  Peter T. Cariveau

发明人： Lance T. Richman ,  Peter T. Cariveau

IPC分类号： E21B1008

CPC分类号： E21B10/08 ,  E21B10/26 ,  E21B17/1092

摘要： A rotary drill bit for boring a bore hole in an earthen formation includes a bit body having a pin end, a cutting end and a longitudinal axis and including at least two legs extending from the cutting end. Each of the legs includes a leading side surface, a trailing side surface, and a shoulder, and each of the legs further includes a bearing and a cutter cone rotatably supported on the bearing. The bit body further including a fluid flow system that includes a flowway in the pin end. The flowway is in fluid communication with at least one exit port in the cutting end. The bit body further includes a neck between the shoulders and the pin end and a hard, wear-resistant material on at least a portion of the neck.

摘要翻译： 用于在土层中钻孔的旋转钻头包括具有销端，切割端和纵向轴线的钻头体，并且包括从切割端延伸的至少两个腿。 每个腿包括前侧面，后侧表面和肩部，并且每个腿还包括可旋转地支撑在轴承上的轴承和切割锥。 钻头体还包括流体流动系统，其包括销端中的流道。 流道与切割端中的至少一个出口端口流体连通。 钻头体还包括在肩部和销端之间的颈部和在颈部的至少一部分上的硬的耐磨材料。

公开(公告)号：US06206110B1

公开(公告)日：2001-03-27

申请号：US09487947

申请日：2000-01-18

申请人： Robert H. Slaughter, Jr. ,  Peter T. Cariveau ,  Kirk A. Norris ,  Roger Didericksen ,  William M. Conn

发明人： Robert H. Slaughter, Jr. ,  Peter T. Cariveau ,  Kirk A. Norris ,  Roger Didericksen ,  William M. Conn

IPC分类号： E21B1024

CPC分类号： E21B10/003 ,  E21B10/18 ,  E21B10/24

摘要： A rotary cone rock bit, comprises a bit body including a plurality of legs extending therefrom, each of the legs having an outer surface that includes a leading surface and a trailing surface, a roller cone rotatably supported on each of the legs, a bearing system between each cone and the leg on which it is supported, and a lubricant reservoir in fluid communication with the bearing system. The reservoir can be provided with a wear resistant plug, if desired. In the present bit, the reservoir can be pressured-balanced with fluid in the bit plenum or the borehole annulus, or maintained at some desired differential with respect to either of these. Alternatively, the reservoir can be formed inside the bit body, preferably by means of a canister, which can be provided with venting means as desired.

摘要翻译： 一种旋转锥形岩石钻头，包括一个钻头体，其包括从其延伸的多个腿，每个腿具有包括前表面和后表面的外表面，可旋转地支撑在每个腿上的滚子圆锥体，轴承系统 在每个锥体和其所支撑的腿部之间，以及与轴承系统流体连通的润滑剂储存器。 如果需要，储存器可以设置有耐磨塞。 在现在的位，储存器可以与钻头压力室或钻孔环中的流体进行加压平衡，或者相对于这些中的任何一个保持在某种所需的差别。 或者，储存器可以形成在钻头体内，优选地通过罐，其可以根据需要设置有排气装置。

公开(公告)号：US20100211362A1

公开(公告)日：2010-08-19

申请号：US12724183

申请日：2010-03-15

申请人： Sujian Huang ,  Peter T. Cariveau

发明人： Sujian Huang ,  Peter T. Cariveau

IPC分类号： G06F17/50 ,  G06G7/64

CPC分类号： E21B44/00 ,  E21B10/00

摘要： In one aspect, the invention provides a method for modeling the performance of a fixed cutter bit drilling an earth formation. In one embodiment, the method includes selecting a drill bit and an earth formation to be represented as drilled, simulating the bit drilling the earth formation, displaying the simulating, and adjusting at least one parameter affecting the performance. The method of design is used to make a fixed cutter drill bit. In another embodiment the method includes numerically rotating the bit, calculating bit interaction with the earth formation during the rotating, and determining the forces on the cutters during the rotation based on the calculated interaction with earth formation and empirical data.

摘要翻译： 一方面，本发明提供了一种用于建模钻井地球的固定切割钻头的性能的方法。 在一个实施例中，该方法包括选择要被表示为钻孔的钻头和地层，模拟钻地层的钻头，显示模拟并且调整影响性能的至少一个参数。 设计方法用于制造固定式切割钻头。 在另一个实施例中，该方法包括数字旋转钻头，在旋转期间计算与地层形成的钻头相互作用，以及基于所计算的与地层形成的相互作用和经验数据来确定旋转期间切割器上的力。

公开(公告)号：US20080296070A1

公开(公告)日：2008-12-04

申请号：US11781648

申请日：2007-07-23

申请人： Yuelin Shen ,  Youhe Zhang ,  Sujian Huang ,  Peter T. Cariveau

发明人： Yuelin Shen ,  Youhe Zhang ,  Sujian Huang ,  Peter T. Cariveau

IPC分类号： E21B10/43

CPC分类号： E21B10/5673

摘要： An improved cutter for fixed cutter drill bits includes a base portion with a longitudinal axis that extends through a center of the base portion and a cutting face which is generally centered with the base portion. The cutting face has a periphery edge geometry comprising a first arcuate segment and a second arcuate segment spaced apart and arranged opposite each other with linear edge segments disposed there between forming sides of the cutting face. The cutting face spans a maximum edge-to-edge dimension L in a first direction that corresponds to a major axis of the cutting face. The cutting face spans a maximum edge-to-edge dimension W in a second direction, which is perpendicular to the first direction, and W is less than L.

摘要翻译： 用于固定切割钻头的改进的切割器包括具有延伸穿过基部的中心的纵向轴线的基部和通常与基部中心的切割面。 切割面具有外围边缘几何形状，其包括第一弧形段和间隔开并且彼此相对布置的第二弧形段，线性边缘段设置在切割面的成形侧之间。 切割面在对应于切割面的长轴的第一方向上跨越最大边缘到边缘尺寸L. 切割面在与第一方向垂直的第二方向上跨越最大边缘至边缘尺寸W，并且W小于L.

公开(公告)号：US20070278014A1

公开(公告)日：2007-12-06

申请号：US11443406

申请日：2006-05-30

申请人： Peter T. Cariveau

发明人： Peter T. Cariveau

IPC分类号： E21B10/00

CPC分类号： E21B10/43 ,  E21B10/42

摘要： Disclosed within is a drill bit with a plural set of blades having redundant cutter elements and single sets of blades having unique cutter element arrangements. The redundant cutter elements have equivalent longitudinal and axial spacing as corresponding cutter elements. The distance from a longitudinal axis of the bit to a redundant cutter element is equivalent to the distance from the longitudinal axis to the corresponding cutter element.

摘要翻译： 公开的是具有多个具有冗余刀片元件的多组叶片的钻头和具有独特刀具元件布置的单组叶片。 冗余刀具元件具有与相应刀片元件相等的纵向和轴向间隔。 从钻头的纵向轴线到冗余切割器元件的距离等于从纵向轴线到相应切割器元件的距离。

公开(公告)号：US20070272445A1

公开(公告)日：2007-11-29

申请号：US11753268

申请日：2007-05-24

申请人： Peter T. Cariveau ,  Bala Durairajan

发明人： Peter T. Cariveau ,  Bala Durairajan

IPC分类号： E21B10/08

CPC分类号： E21B17/1092

摘要： A drill bit for drilling a borehole in earthen formations. In an embodiment, the bit comprises a bit body having a bit axis and a bit face. In addition, the bit comprises a pin end extending from the bit body opposite the bit face. Further, the bit comprises a plurality of gage pads extending from the bit body, wherein each gage pad includes a radially outer gage-facing surface. The gage-facing surfaces of the plurality of gage pads define a gage pad circumference that is centered relative to a gage pad axis, the gage pad axis being substantially parallel to the bit axis and offset from the bit axis.

摘要翻译： 用于在土层中钻孔的钻头。 在一个实施例中，该位包括具有位轴和位面的位体。 此外，该钻头包括从钻头体相对于钻头面延伸的销端。 此外，钻头包括从钻头体延伸的多个计量垫，其中每个计量垫包括径向外表面的表面。 多个量具垫的面向表面的表面限定了相对于量规垫轴线居中的量具垫周长，量规垫轴线基本上平行于钻头轴线并且偏离钻头轴线。

公开(公告)号：US07137460B2

公开(公告)日：2006-11-21

申请号：US10803171

申请日：2004-03-17

申请人： Robert H. Slaughter, Jr. ,  Peter T. Cariveau ,  Vincent W. Shotton

发明人： Robert H. Slaughter, Jr. ,  Peter T. Cariveau ,  Vincent W. Shotton

IPC分类号： E21B9/22

CPC分类号： E21B10/28

摘要： A back reaming tool is disclosed which includes a tool body adapted to be coupled to a drill string, and at least cutting structure mounted to a leg and having cutting elements disposed thereon. The leg is removably coupled to the tool body.

摘要翻译： 公开了一种后铰孔工具，其包括适于联接到钻柱的工具主体，以及至少安装到腿上的切割结构，并且具有设置在其上的切割元件。 腿可拆卸地联接到工具主体。

公开(公告)号：US5868502A

公开(公告)日：1999-02-09

申请号：US835285

申请日：1997-04-09

申请人： Peter T. Cariveau ,  Robert Wagoner

发明人： Peter T. Cariveau ,  Robert Wagoner

IPC分类号： E21B10/22 ,  E21B10/24 ,  F16C17/04 ,  F16C19/49 ,  F16C19/52 ,  F16C19/56 ,  F16C21/00 ,  F16C33/04 ,  F16C33/66 ,  F16C37/00 ,  F16C33/00

CPC分类号： F16C19/49 ,  E21B10/22 ,  F16C17/04 ,  F16C19/52 ,  F16C19/56 ,  F16C21/00 ,  F16C33/043 ,  F16C33/6696

摘要： A first embodiment of a radially disposed thrust bearing assembly for rotary cone rock bits consists of a first non-rotating radially disposed steel thrust bearing disc and an adjacent, carbide thrust bearing disc. One of the thrust bearing discs is pressed into a disc retention socket formed in the end of a spindle bearing extending from the end of a main axially aligned bearing cantilevered from a leg of the bit and the other thrust bearing disc is pressed into a disc retention socket formed in the rotary cone. An edge of the carbide disc is formed with large valleys and peaks, the robust undulations resist cracking when the carbide thrust bearing disc is pressed into its respective socket. Unique air passages and channels are formed in the main and spindle bearings to direct cooling air to the thrust bearing discs. A second embodiment of a radially disposed thrust bearing assembly for rotary cone rock bits consists of a pair of preferably carbide thrust buttons, each of which has a central bore and a plurality of channels on its back face. The channels and central bore communicate with an air passage through the bit so as to provide a flow of cooling fluid such as air to the back of each thrust button. The invention further includes thrust bearing systems in which both of the thrust buttons comprise hard metal or sintered material.

摘要翻译： 用于旋转锥形岩石钻头的径向设置的推力轴承组件的第一实施例由第一非旋转径向设置的钢推力轴承盘和相邻的碳化物推力轴承盘组成。 推力轴承盘中的一个被压入形成在主轴轴承端部的盘保持插座中，该主轴轴承从从该钻头的支脚悬臂的主轴向对准的轴承的端部延伸，另一个推力轴承盘被压入盘保持 插座形成在旋转锥体中。 碳化物圆盘的边缘形成有大的谷和峰，当碳化物推力轴承盘被压入其相应的插座时，坚固的波纹可以防止裂纹。 在主轴和主轴轴承中形成独特的空气通道和通道，以将冷却空气引导到推力轴承盘。 用于旋转锥形岩石钻头的径向设置的推力轴承组件的第二实施例由一对优选的碳化物推力按钮组成，每个都具有中心孔和在其背面上的多个通道。 通道和中心孔与通过该钻头的空气通道连通，以便向每个推力按钮的后部提供诸如空气的冷却流体流。 本发明还包括推力轴承系统，其中两个推力按钮都包括硬质金属或烧结材料。

公开(公告)号：US07201241B2

公开(公告)日：2007-04-10

申请号：US11312075

申请日：2005-12-19

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

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

IPC分类号： E21B10/22

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。