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    EXPANDABLE APPARATUS AND RELATED METHODS
    1.
    发明申请
    EXPANDABLE APPARATUS AND RELATED METHODS 有权
    可扩展装置及相关方法

    公开(公告)号：US20130087386A1

    公开(公告)日：2013-04-11

    申请号：US13544744

    申请日：2012-07-09

    申请人： Steven R. Radford ,  Kelly D. Ireland ,  Anurag Gautam ,  Robert A. Laing ,  Matthew D. Mumma ,  Daryl L. Pritchard

    发明人： Steven R. Radford ,  Kelly D. Ireland ,  Anurag Gautam ,  Robert A. Laing ,  Matthew D. Mumma ,  Daryl L. Pritchard

    IPC分类号： E21B7/00 ,  E21B4/00 ,  E21B4/04 ,  E21B44/00

    CPC分类号： E21B10/322 ,  E21B4/00 ,  E21B4/04 ,  E21B7/00 ,  E21B10/32 ,  E21B17/1014 ,  E21B34/14 ,  E21B44/005 ,  E21B47/18 ,  E21B2034/007

    摘要： An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly by drilling fluid selectively allowed to communicate therewith by way of an actuation sleeve disposed within the tubular body. Alternatively, a separation element may transmit force or pressure from the drilling fluid to the movable blade. Further, a chamber in communication with the movable blade may be pressurized by way of a downhole turbine or pump. A ridged seal wiper, compensator, movable bearing pad, fixed bearing pad preceding the movable blade, or adjustable spacer element to alter expanded blade position may be included within the expandable reamer. In addition, a drilling fluid pressure response indicating an operational characteristic of the expandable reamer may be generated.

    摘要翻译： 一种用于铰链钻孔的可扩展铰刀装置和方法，其中由管状体承载的横向可移动刀片可以选择性地定位在向内位置和扩张位置。 通过刀片偏置元件保持在内侧的可横向移动的刀片可以通过钻取选择性地允许通过设置在管状体内的致动套筒与之连通的流体来向外推动。 或者，分离元件可将来自钻井流体的力或压力传递到可动叶片。 此外，与可动叶片连通的室可以通过井下涡轮或泵来加压。 可扩展铰刀内可以包括脊状密封刮水器，补偿器，活动轴承瓦块，可动刀片之前的固定轴承瓦块或可调节的间隔件以改变扩大的刀片位置。 此外，可以产生指示可扩展铰刀的操作特性的钻井液压力响应。

    ACTIVE GAUGE PROTECTION FOR DRILL BITS
    2.
    发明申请
    ACTIVE GAUGE PROTECTION FOR DRILL BITS 审中-公开
    用于钻头的主动计量保护

    公开(公告)号：US20100089662A1

    公开(公告)日：2010-04-15

    申请号：US12251955

    申请日：2008-10-15

    申请人： Matthew D. Mumma

    发明人： Matthew D. Mumma

    IPC分类号： E21B10/36 ,  E21B17/10

    CPC分类号： E21B12/04 ,  E21B17/1092

    摘要： A drill bit having a selected gauge diameter and operable to be positioned within a casing positioned within a rock formation, the casing comprising an casing inner wall having a casing inner diameter greater than the gauge diameter, wherein the positioning of the drill bit within the casing defines a drift distance corresponding to the distance between the gauge diameter and the casing inner diameter, the drill bit comprising a blade comprising a gauge cutter operable to cut an earth formation at the gauge diameter; and a protective insert coupled the drill bit such that a portion of the protective insert extends beyond the gauge diameter by a selected overgauge distance, wherein the protective insert is operable to engage the casing inner wall to substantially prevent the gauge cutter from engaging the casing inner wall as the drill bit is positioned through a selected length of the casing.

    摘要翻译： 一种具有选定的规格直径并可操作以定位在位于岩层内的壳体内的钻头，所述壳体包括具有大于所述规格直径的壳体内径的壳体内壁，其中所述钻头在所述壳体内的定位 限定对应于规格直径和套管内径之间的距离的漂移距离，所述钻头包括刀片，所述刀片包括可操作以在所述量规直径处切割地层的量规切割器; 以及保护插入件，其联接所述钻头，使得所述保护插入件的一部分延伸超过所述规格直径所选择的超量程距离，其中所述保护插入件可操作以接合所述壳体内壁，以基本上防止所述量规切割器与所述壳体内部 当钻头定位成穿过套管的选定长度时。

    CIRCUMVOLVE CUTTERS FOR DRILL BIT
    3.
    发明申请
    CIRCUMVOLVE CUTTERS FOR DRILL BIT 审中-公开
    圆形切割机钻头

    公开(公告)号：US20080251293A1

    公开(公告)日：2008-10-16

    申请号：US11734650

    申请日：2007-04-12

    申请人： Matthew D. Mumma ,  Jonathan R. Schmidt ,  Randy H. James

    发明人： Matthew D. Mumma ,  Jonathan R. Schmidt ,  Randy H. James

    IPC分类号： E21B7/00

    CPC分类号： E21B10/573 ,  E21B10/62

    摘要： A drill bit comprising a cutter assembly, further comprising a planar table and a cutter substrate coupled to the planar table, wherein the cutter substrate has a cutter body axis and wherein the planar table is operable to rotate about the cutter body axis. The planar table may be exposed to the rock formation for cutting purposes but may rotate to reduce the time that any specific portion of the cutting edge is exposed to the formation to extend the life of the planar table, among other benefits.

    摘要翻译： 一种包括切割器组件的钻头，还包括平面台和联接到所述平面台的切割器基板，其中所述切割器基板具有切割器主体轴线，并且其中所述平面台可操作以围绕所述切割器主体轴线旋转。 平面台可以暴露于岩层以用于切割目的，但是可以旋转以减少切割边缘的任何特定部分暴露于地层以延长平台的寿命的时间等等。

    Expandable reamer apparatus for enlarging boreholes while drilling and methods of use
    5.
    发明授权
    Expandable reamer apparatus for enlarging boreholes while drilling and methods of use 有权
    用于在钻孔时扩大钻孔的扩展钻孔装置和使用方法

    公开(公告)号：US07036611B2

    公开(公告)日：2006-05-02

    申请号：US10624952

    申请日：2003-07-22

    申请人： Steven R. Radford ,  Kelly D. Ireland ,  Anurag Gautam ,  Robert A. Laing ,  Matthew D. Mumma ,  Daryl L. Pritchard

    发明人： Steven R. Radford ,  Kelly D. Ireland ,  Anurag Gautam ,  Robert A. Laing ,  Matthew D. Mumma ,  Daryl L. Pritchard

    IPC分类号： E21B10/32

    CPC分类号： E21B10/322 ,  E21B4/00 ,  E21B4/04 ,  E21B7/00 ,  E21B10/32 ,  E21B17/1014 ,  E21B34/14 ,  E21B44/005 ,  E21B47/18 ,  E21B2034/007

    摘要： An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly by drilling fluid selectively allowed to communicate therewith by way of an actuation sleeve disposed within the tubular body. Alternatively, a separation element may transmit force or pressure from the drilling fluid to the movable blade. Further, a chamber in communication with the movable blade may be pressurized by way of a downhole turbine or pump. A ridged seal wiper, compensator, movable bearing pad, fixed bearing pad preceding the movable blade, or an adjustable spacer element to alter expanded blade position may be included within the expandable reamer. In addition, a drilling fluid pressure response indicating an operational characteristic of the expandable reamer may be generated.

    摘要翻译： 一种用于铰链钻孔的可扩展铰刀装置和方法，其中由管状体承载的横向可移动刀片可以选择性地定位在向内位置和扩张位置。 通过刀片偏置元件保持在内侧的可横向移动的刀片可以通过钻取选择性地允许通过设置在管状体内的致动套筒与之连通的流体来向外推动。 或者，分离元件可将来自钻井流体的力或压力传递到可动叶片。 此外，与可动叶片连通的室可以通过井下涡轮或泵来加压。 可扩展铰刀内可以包括脊状密封刮水器，补偿器，活动轴承垫，可动刀片前面的固定轴承垫或可调节间隔元件以改变扩展刀片位置。 此外，可以产生指示可扩展铰刀的操作特性的钻井液压力响应。

    Enhanced offset stabilization for eccentric reamers
    6.
    发明授权
    Enhanced offset stabilization for eccentric reamers 有权
    增强偏心铰刀的偏移稳定

    公开(公告)号：US06739416B2

    公开(公告)日：2004-05-25

    申请号：US10099867

    申请日：2002-03-13

    申请人： W. Gregory Presley ,  Christopher S. Charles ,  D. Jay Clinkscales ,  Jeffrey B. Lund ,  Matthew J. Meiners ,  Steven R. Radford ,  Robert A. Laing ,  Matthew D. Mumma

    发明人： W. Gregory Presley ,  Christopher S. Charles ,  D. Jay Clinkscales ,  Jeffrey B. Lund ,  Matthew J. Meiners ,  Steven R. Radford ,  Robert A. Laing ,  Matthew D. Mumma

    IPC分类号： E21B1026

    CPC分类号： E21B10/26

    摘要： Enhanced stabilization is provided for an eccentric reaming tool when a pilot borehole is undersized with respect to a following pilot stabilization pad (PSP). Alternatively, offset of a rotational axis of at least a portion of the assembly including the reaming tool is employed to accomplish stabilization of the reaming tool. In either case, a reamed diameter larger than a physical diameter of the reaming tool may be drilled. More specifically, an enlarged PSP relative to pilot bit diameter or PSP offset or even pilot bit offset is employed in order to engage a PSP with the wall of a pilot borehole of greater diameter than a physical diameter of the pilot bit. The PSP or pilot drill bit, or both, may be laterally offset, angularly offset, or a combination thereof in order to effect substantially continuous PSP contact with the pilot borehole wall.

    摘要翻译： 当导向钻孔相对于后续的导向稳定垫（PSP）不足时，为偏心扩孔工具提供了增强的稳定性。 或者，采用包括扩孔工具的组件的至少一部分的旋转轴线的偏移来实现扩孔工具的稳定性。 在这两种情况下，可以钻出比扩孔工具的物理直径大的扩孔直径。 更具体地，采用相对于导向钻头直径或PSP偏移或甚至导向钻头偏移的放大的PSP，以使PSP与直径大于导向钻头的物理直径的导向钻孔的壁接合。 PSP或导向钻头或两者可以被横向偏移，角度偏移或其组合，以便实现与导向井壁基本上连续的PSP接触。