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29 条记录 (耗时 0.019 秒)

    Fixed-head bit with stabilizing features
    1.
    发明申请
    Fixed-head bit with stabilizing features 有权
    固定头位稳定功能

    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。

    PDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time
    2.
    发明申请
    PDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time 有权
    具有刀具设计的PDC钻头通过动态中心线分析进行优化，在最大时间内具有180度的不平衡力的角度间隔

    公开(公告)号：US20060167669A1

    公开(公告)日：2006-07-27

    申请号：US11041911

    申请日：2005-01-24

    申请人： Peter Cariveau ,  Bala Durairajan ,  Sujian Huang

    发明人： Peter Cariveau ,  Bala Durairajan ,  Sujian Huang

    IPC分类号： G06G7/48

    CPC分类号： E21B10/00

    摘要： A method for designing a fixed cutter drill bit, includes simulating the fixed cutter drill bit drilling in an earth formation, determining radial and circumferential components of imbalance forces on the drill bit and a Beta angle between the radial and circumferential components of the imbalance forces during a period of simulated drilling, and adjusting a value of at least one design parameter for the fixed cutter drill bit at least based upon the Beta angle. To facilitate drill bit design, the Beta angel can be displayed to a drill bit designer. To improve performance, the method can include repeating the simulating, determining, and adjusting to change a simulated performance of the fixed cutter drill bit. A drill bit may be made according to the design resulting from the method.

    摘要翻译： 一种用于设计固定切割钻头的方法，包括模拟地层中的固定切割钻头钻孔，确定钻头上的不平衡力的径向和周向分量以及不平衡力的径向和周向分量之间的β角 至少基于β角度来调整固定切割钻头的至少一个设计参数的值。 为了方便钻头设计，Beta天使可以显示给钻头设计师。 为了提高性能，该方法可以包括重复模拟，确定和调整以改变固定切割钻头的模拟性能。 可以根据由该方法产生的设计制造钻头。

    PDC drill bit with cutter design optimized with dynamic centerline analysis and having dynamic center line trajectory
    3.
    发明申请
    PDC drill bit with cutter design optimized with dynamic centerline analysis and having dynamic center line trajectory 审中-公开
    具有刀具设计的PDC钻头，通过动态中心线分析进行优化，并具有动态中心线轨迹

    公开(公告)号：US20060167668A1

    公开(公告)日：2006-07-27

    申请号：US11041910

    申请日：2005-01-24

    申请人： Peter Cariveau ,  Bala Durairajan ,  Sujian Huang

    发明人： Peter Cariveau ,  Bala Durairajan ,  Sujian Huang

    IPC分类号： G06G7/48

    CPC分类号： E21B10/00

    摘要： A method for designing a fixed cutter drill bit includes simulating the fixed cutter drill bit drilling in an earth formation, determining a dynamic centerline trajectory of the drill bit, and adjusting at least one design parameter based upon the graphical display of at least the dynamic centerline trajectory. To improve performance, the method can include graphically displaying the dynamic centerline trajectory and/or repeating the simulating, determining, displaying and adjusting to change a simulated performance of the fixed cutter drill bit. A drill bit design may be selected and a drill bit may be made according to the design resulting from the method of designing.

    摘要翻译： 一种用于设计固定切割钻头的方法包括模拟地层中的固定切割钻头钻孔，确定钻头的动态中心线轨迹，以及基于至少动态中心线的图形显示来调整至少一个设计参数 弹道。 为了提高性能，该方法可以包括图形地显示动态中心线轨迹和/或重复模拟，确定，显示和调整以改变固定切割钻头的模拟性能。 可以选择钻头设计，并且可以根据由设计方法产生的设计来制造钻头。

    PDC drill bit using optimized side rake angle
    4.
    发明申请
    PDC drill bit using optimized side rake angle 有权
    PDC钻头使用优化的侧倾角

    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。

    Formation prioritization optimization
    5.
    发明申请
    Formation prioritization optimization 审中-公开
    形成优先排序优化

    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。

    Methods for modeling, displaying, designing, and optimizing fixed cutter bits
    6.
    发明申请
    Methods for modeling, displaying, designing, and optimizing fixed cutter bits 有权
    固定刀头的建模，显示，设计和优化方法

    公开(公告)号：US20050133272A1

    公开(公告)日：2005-06-23

    申请号：US10888358

    申请日：2004-07-09

    申请人： Sujian Huang ,  Peter Cariveau

    发明人： Sujian Huang ,  Peter Cariveau

    IPC分类号： E21B10/00

    CPC分类号： 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。

    SELF RELIEVING SEAL
    8.
    发明申请
    SELF RELIEVING SEAL 失效
    自我保护密封

    公开(公告)号：US20070181347A1

    公开(公告)日：2007-08-09

    申请号：US11733731

    申请日：2007-04-10

    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： 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。

    Sealed bearing drill bit with dual-seal configuration and fluid-cleaning capability
    9.
    发明授权
    Sealed bearing drill bit with dual-seal configuration and fluid-cleaning capability 失效
    密封轴承钻头具有双重密封配置和流体清洁功能

    公开(公告)号：US5887981A

    公开(公告)日：1999-03-30

    申请号：US980935

    申请日：1997-12-01

    申请人： Robert H. Slaughter, Jr. ,  Peter Cariveau ,  Roger Didericksen

    发明人： Robert H. Slaughter, Jr. ,  Peter Cariveau ,  Roger Didericksen

    IPC分类号： E21B10/22 ,  E21B10/25 ,  F16C33/72

    CPC分类号： E21B10/25 ,  F16C19/49 ,  F16C19/54 ,  F16C33/78 ,  F16C2352/00

    摘要： A drill bit for use in an earthen annulus that contains loose particles is connected to a fluid supply source and includes a bit body having at least one journal segment and at least one fluid conduit in fluid communication with the fluid supply source. A roller cone is rotatably mounted upon the journal segment and forms at least one bearing cavity therebetween. An annular primary seal is disposed between the roller cone and the bit body and between the bearing cavity and the earthen annulus, and an annular gap is disposed between the annular primary seal and the earthen annulus. The annular gap is in fluid communication with the fluid conduit and the earthen annulus. An annular secondary seal is disposed between the annular primary seal and the earthen annulus and is capable of substantially preventing the ingress of debris from the earthen annulus to the annular primary seal.

    摘要翻译： 用于含有松散颗粒的土体环的钻头连接到流体供应源，并且包括具有至少一个轴颈段的钻头体和与流体供应源流体连通的至少一个流体导管。 辊筒可旋转地安装在轴颈段上，并在其间形成至少一个轴承腔。 环形主密封件设置在辊锥体和钻头体之间以及轴承腔和土体环之间，并且环形间隙设置在环形主密封件和土层环之间。 环形间隙与流体导管和土层环流体连通。 环形二次密封件设置在环形主密封件和土层环之间，并且能够基本上防止碎屑从土层环进入环形主密封件。