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    INLINE BLADDER-TYPE ACCUMULATOR FOR DOWNHOLE APPLICATIONS
    1.
    发明申请
    INLINE BLADDER-TYPE ACCUMULATOR FOR DOWNHOLE APPLICATIONS 失效
    用于井下应用的在线叶片式蓄能器

    公开(公告)号：US20070284010A1

    公开(公告)日：2007-12-13

    申请号：US11449046

    申请日：2006-06-08

    申请人： Lance D. Underwood ,  Shantanu N. Swadi

    发明人： Lance D. Underwood ,  Shantanu N. Swadi

    IPC分类号： F16L55/04

    CPC分类号： F15B1/027 ,  E21B4/14 ,  F15B1/165 ,  F15B1/18 ,  F15B2201/3152 ,  Y10T137/3118

    摘要： An accumulator comprises a housing connected to a hydraulic system, an elastomeric bladder separating a gas compartment from a fluid compartment, and an anti-extrusion device. A method for operating an accumulator comprises connecting the accumulator to a hydraulic system, injecting an inert gas into a gas compartment to a precharge pressure, moving an anti-extrusion device to prevent a bladder from extruding into the hydraulic system, running the accumulator and the hydraulic system downhole, moving the anti-extrusion device to allow fluid communication between the hydraulic system and a fluid compartment, generating pressure fluctuations within the hydraulic system, and expanding or contracting the bladder in response to the pressure fluctuations without moving the anti-extrusion device. A method of improving fluid hammer performance comprises connecting the fluid hammer to an accumulator that produces a greater delivered horsepower from the fluid hammer as compared to a baseline horsepower when operating without the accumulator.

    摘要翻译： 蓄能器包括连接到液压系统的壳体，将气体隔室与流体隔室分离的弹性体囊以及抗挤压装置。 用于操作蓄能器的方法包括将蓄能器连接到液压系统，将惰性气体注入气室至预充压力，移动抗挤压装置以防止气囊挤入液压系统，运行蓄能器和 液压系统在井下，移动抗挤压装置以允许液压系统和流体隔室之间的流体连通，在液压系统内产生压力波动，以及响应于压力波动膨胀或收缩气囊而不移动抗挤压装置 。 改进流体锤性能的方法包括将流体锤连接到蓄能器，与在没有蓄能器的情况下操作时相比，基本马力与流体锤产生更大的输送马力。

    Inline bladder-type accumulator for downhole applications
    2.
    发明授权
    Inline bladder-type accumulator for downhole applications 失效
    用于井下应用的直列膀胱式蓄能器

    公开(公告)号：US07353845B2

    公开(公告)日：2008-04-08

    申请号：US11449046

    申请日：2006-06-08

    申请人： Lance D. Underwood ,  Shantanu N. Swadi

    发明人： Lance D. Underwood ,  Shantanu N. Swadi

    IPC分类号： F16L55/04

    CPC分类号： F15B1/027 ,  E21B4/14 ,  F15B1/165 ,  F15B1/18 ,  F15B2201/3152 ,  Y10T137/3118

    摘要： An accumulator comprises a housing connected to a hydraulic system, an elastomeric bladder separating a gas compartment from a fluid compartment, and an anti-extrusion device. A method for operating an accumulator comprises connecting the accumulator to a hydraulic system, injecting an inert gas into a gas compartment to a precharge pressure, moving an anti-extrusion device to prevent a bladder from extruding into the hydraulic system, running the accumulator and the hydraulic system downhole, moving the anti-extrusion device to allow fluid communication between the hydraulic system and a fluid compartment, generating pressure fluctuations within the hydraulic system, and expanding or contracting the bladder in response to the pressure fluctuations without moving the anti-extrusion device. A method of improving fluid hammer performance comprises connecting the fluid hammer to an accumulator that produces a greater delivered horsepower from the fluid hammer as compared to a baseline horsepower when operating without the accumulator.

    摘要翻译： 蓄能器包括连接到液压系统的壳体，将气体隔室与流体隔室分离的弹性体囊以及抗挤压装置。 用于操作蓄能器的方法包括将蓄能器连接到液压系统，将惰性气体注入气室至预充压力，移动抗挤压装置以防止气囊挤入液压系统，运行蓄能器和 液压系统在井下，移动抗挤压装置以允许液压系统和流体隔室之间的流体连通，在液压系统内产生压力波动，以及响应于压力波动膨胀或收缩气囊而不移动抗挤压装置 。 改进流体锤性能的方法包括将流体锤连接到蓄能器，与在没有蓄能器的情况下操作时相比，基本马力与流体锤产生更大的输送马力。

    Secondary retainer for a downhole hammer bit
    6.
    发明授权
    Secondary retainer for a downhole hammer bit 失效
    井下锤头二次保持架

    公开(公告)号：US07665548B2

    公开(公告)日：2010-02-23

    申请号：US12022786

    申请日：2008-01-30

    申请人： Lance D. Underwood

    发明人： Lance D. Underwood

    IPC分类号： E21B10/36

    CPC分类号： E21B10/36 ,  E21B17/076

    摘要： A bit retainer system includes a bit having a head and a shank, a driver sub disposed around the shank of the bit and adapted to engage a hammer case, a bit retainer including a segmented retainer ring configured with a circumferential groove on an outside diameter of the segmented ring, the bit retainer disposed around the shank of the bit and abutting an upper end of the driver sub. The bit retainer system further includes a secondary retainer disposed around the bit retainer, wherein the secondary retainer includes a plurality of webs disposed at selected locations along the secondary retainer configured to engage the circumferential groove of the segmented retainer ring.

    摘要翻译： 一种位保持器系统包括具有头部和柄部的位，驱动器副设置在钻头的柄部周围并且适于接合锤壳，钻头保持器，其包括分隔的保持环，该保持环构造为具有周向槽的外径 分段环，位保持器设置在钻头的柄部周围并且抵靠驱动器副的上端。 钻头保持器系统还包括设置在钻头保持器周围的次级保持器，其中辅助保持器包括多个腹板，所述多个腹板设置在沿着辅助保持器的选定位置处，构造成接合分段保持环的周向槽。

    Locking clutch for downhole motor
    7.
    发明授权
    Locking clutch for downhole motor 有权
    井下电机锁止离合器

    公开(公告)号：US08776915B2

    公开(公告)日：2014-07-15

    申请号：US13063266

    申请日：2008-09-10

    申请人： James Edmond Beylotte ,  Lance D. Underwood

    发明人： James Edmond Beylotte ,  Lance D. Underwood

    IPC分类号： E21B19/22

    CPC分类号： E21B4/006 ,  E21B4/02 ,  F16D43/16 ,  F16D2043/145

    摘要： A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl radially between the rotor and the stator and configured to engage at least one recess formed in an outer periphery of the rotor, and a biasing mechanism configured to bias the at least one locking pawl into an engaged position. The at least one locking pawl includes a load path, two pivot axes, and a mass center. The at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated about one of the two pivot axes above a disengagement speed.

    摘要翻译： 用于选择性地将扭矩从井下工具的定子传递到井下工具的转子的锁定离合器包括径向在转子和定子之间的至少一个锁定爪，并且构造成接合形成在转子的外周中的至少一个凹部 以及偏置机构，其构造成将所述至少一个锁定爪偏压到接合位置。 所述至少一个锁定爪包括负载路径，两个枢转轴线和质量中心。 当处于接合位置时，所述至少一个锁定爪将力从定子传递到转子，并且当转子围绕两个枢轴中的一个旋转时，离心力将至少一个锁定棘爪推动到脱离位置 高于脱离速度。

    Locking clutch for downhole motor
    8.
    发明授权
    Locking clutch for downhole motor 有权
    井下电机锁止离合器

    公开(公告)号：US07735581B2

    公开(公告)日：2010-06-15

    申请号：US11742397

    申请日：2007-04-30

    申请人： James Edmond Beylotte ,  Lance D. Underwood

    发明人： James Edmond Beylotte ,  Lance D. Underwood

    IPC分类号： E21B4/20

    CPC分类号： E21B4/006 ,  E21B4/02

    摘要： A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor. The at least one locking pawl comprises a load path, a pivot axis, and a mass center, and is biased into an engaged position by a biasing mechanism. The at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated above a disengagement speed.

    摘要翻译： 用于选择性地将扭矩从井下工具的定子传递到井下工具的转子的锁定离合器包括设置在转子上的至少一个锁定爪。 所述至少一个锁定爪包括负载路径，枢转轴线和质量中心，并且通过偏置机构偏置到接合位置。 当处于接合位置时，所述至少一个锁定爪沿着负载路径将力从定子传递到转子，并且当转子旋转高于分离速度时，离心力将至少一个锁定棘爪推动到脱离位置。

    LOCKING CLUTCH FOR DOWNHOLE MOTOR
    9.
    发明申请
    LOCKING CLUTCH FOR DOWNHOLE MOTOR 有权
    卧式电机的锁定离合器

    公开(公告)号：US20080264692A1

    公开(公告)日：2008-10-30

    申请号：US11742397

    申请日：2007-04-30

    申请人： Lance D. Underwood ,  James Edmond Beylotte

    发明人： Lance D. Underwood ,  James Edmond Beylotte

    IPC分类号： E21B4/00

    CPC分类号： E21B4/006 ,  E21B4/02

    摘要： A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor, wherein the at least one locking pawl comprises a load path, a pivot axis, and a mass center, wherein the at least one locking pawl is biased into an engaged position by a biasing mechanism, wherein the at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and wherein centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated above a disengagement speed.

    摘要翻译： 用于选择性地将扭矩从井下工具的定子传递到井下工具的转子的锁定离合器包括设置在转子上的至少一个锁定爪，其中至少一个锁定爪包括负载路径，枢转轴线和 其中所述至少一个锁定爪通过偏压机构偏置到接合位置，其中当处于所述接合位置时，所述至少一个锁定爪沿着所述负载路径将力从所述定子传递到所述转子，并且其中离心力 当转子旋转高于分离速度时，促使至少一个锁定爪进入脱离位置。

    SECONDARY RETAINER FOR A DOWNHOLE HAMMER BIT
    10.
    发明申请
    SECONDARY RETAINER FOR A DOWNHOLE HAMMER BIT 失效
    一个卧室锤子的二次保持器

    公开(公告)号：US20080135298A1

    公开(公告)日：2008-06-12

    申请号：US12022786

    申请日：2008-01-30

    申请人： Lance D. Underwood

    发明人： Lance D. Underwood

    IPC分类号： E21B10/36 ,  E21B7/24

    CPC分类号： E21B10/36 ,  E21B17/076

    摘要： A bit retainer system includes a bit having a head and a shank, a driver sub disposed around the shank of the bit and adapted to engage a hammer case, a bit retainer including a segmented retainer ring configured with a circumferential groove on an outside diameter of the segmented ring, the bit retainer disposed around the shank of the bit and abutting an upper end of the driver sub. The bit retainer system further includes a secondary retainer disposed around the bit retainer, wherein the secondary retainer includes a plurality of webs disposed at selected locations along the secondary retainer configured to engage the circumferential groove of the segmented retainer ring.

    摘要翻译： 一种位保持器系统包括具有头部和柄部的位，驱动器副设置在钻头的柄部周围并且适于接合锤壳，钻头保持器，其包括分隔的保持环，该保持环构造为具有周向槽的外径 分段环，位保持器设置在钻头的柄部周围并且抵靠驱动器副的上端。 钻头保持器系统还包括设置在钻头保持器周围的次级保持器，其中辅助保持器包括多个腹板，所述多个腹板设置在沿着辅助保持器的选定位置处，构造成接合分段保持环的周向槽。