公开(公告)号：US07387178B2

公开(公告)日：2008-06-17

申请号：US11733731

申请日：2007-04-10

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。

公开(公告)号：US06976548B2

公开(公告)日：2005-12-20

申请号：US10406065

申请日：2003-04-02

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 ,  E21B10/25

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。

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。

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。

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。

公开(公告)号：US07469618B2

公开(公告)日：2008-12-30

申请号：US11211261

申请日：2005-08-25

申请人： Manikiran Bandi

发明人： Manikiran Bandi

IPC分类号： E21B10/22

CPC分类号： C23C30/005 ,  C21D1/06 ,  C21D1/72 ,  C21D9/22 ,  C21D2221/00 ,  C23C8/04 ,  C23C8/22 ,  C23C8/80 ,  E21B10/50

摘要： The preferred embodiments are directed toward methods and apparatus for manufacturing components for earth-boring drill bits. In the preferred embodiments, a portion of the component is coated and the component is exposed to a carbon-rich environment at an elevated temperature. During this exposure, some portions of the component are not coated. The preferred embodiments further comprise coating the areas that were exposed to the carbon-rich environment and exposing the component to an elevated temperature in an environment with carbon present. In one embodiment, a drill leg is coated (with the exception of the journal pin) and then exposed to a carbon-rich environment at an elevated temperature. In this embodiment, the journal pin is then coated and the drill leg is exposed to an elevated temperature with a percentage of carbon that is less than the initial carbon-rich environment.

摘要翻译： 优选实施例涉及用于制造用于钻孔钻头的部件的方法和装置。 在优选的实施方案中，组分的一部分被涂覆，并且组分在高温下暴露于富含碳的环境中。 在该曝光期间，部件的一些部分未被涂覆。 优选的实施方案还包括涂覆暴露于富含碳的环境的区域并将组分暴露于存在碳的环境中的升高温度。 在一个实施例中，涂覆钻杆（除了轴颈销），然后在升高的温度下暴露于富含碳的环境中。 在该实施例中，然后涂覆轴颈销，并且将钻柱暴露于高于初始富碳环境的碳的百分比的高温下。

公开(公告)号：US20060042837A1

公开(公告)日：2006-03-02

申请号：US11211261

申请日：2005-08-25

申请人： Manikiran Bandi

发明人： Manikiran Bandi

IPC分类号： E21B10/00

CPC分类号： C23C30/005 ,  C21D1/06 ,  C21D1/72 ,  C21D9/22 ,  C21D2221/00 ,  C23C8/04 ,  C23C8/22 ,  C23C8/80 ,  E21B10/50

摘要： The preferred embodiments are directed toward methods and apparatus for manufacturing components for earth-boring drill bits. In the preferred embodiments, a portion of the component is coated and the component is exposed to a carbon-rich environment at an elevated temperature. During this exposure, some portions of the component are not coated. The preferred embodiments further comprise coating the areas that were exposed to the carbon-rich environment and exposing the component to an elevated temperature in an environment with carbon present. In one embodiment, a drill leg is coated (with the exception of the journal pin) and then exposed to a carbon-rich environment at an elevated temperature. In this embodiment, the journal pin is then coated and the drill leg is exposed to an elevated temperature with a percentage of carbon that is less than the initial carbon-rich environment.

摘要翻译： 优选实施例涉及用于制造用于钻孔钻头的部件的方法和装置。 在优选的实施方案中，组分的一部分被涂覆，并且组分在高温下暴露于富含碳的环境中。 在该曝光期间，部件的一些部分未被涂覆。 优选的实施方案还包括涂覆暴露于富含碳的环境的区域并将组分暴露于存在碳的环境中的升高温度。 在一个实施例中，涂覆钻杆（除了轴颈销），然后在升高的温度下暴露于富含碳的环境中。 在该实施例中，然后涂覆轴颈销，并且将钻柱暴露于高于初始富碳环境的碳的百分比的高温下。