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公开(公告)号：US20130277116A1
公开(公告)日：2013-10-24
申请号：US13450084
申请日：2012-04-18
申请人： CRAIG KNULL , Justin Forbes
发明人： CRAIG KNULL , Justin Forbes
摘要： A downhole tool having a progressive cavity mud motor with an impact generator disposed within the mud motor rotor or bearing assembly. In one embodiment, the impact generator includes a mud turbine connected to a eccentric ring that encircles and periodically strikes an anvil surface of a percussion shaft. The eccentric ring is pivotable between an engaged striking position and a disengaged non-striking position. The percussion shaft is coupled to a drill bit though a splined connector that provides limited slip for transmitting rotation of the mud motor rotor to the drill bit and for transmitting percussion strikes against the anvil to the drill bit without the need to accelerate the entire drill string.
摘要翻译： 一种井下工具，其具有排放在泥浆马达转子或轴承组件内的冲击发生器的渐进型泥浆马达。 在一个实施例中，冲击发生器包括连接到偏心环的泥浆涡轮机，其围绕并周期性地撞击冲击轴的砧座表面。 偏心环可在接合的打击位置和分离的非打击位置之间枢转。 冲击轴通过花键连接器连接到钻头，该连接器提供有限滑动以将泥浆马达转子的旋转传递到钻头，并且用于将撞击砧座撞击到钻头上，而不需要加速整个钻柱 。
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公开(公告)号：US08851204B2
公开(公告)日：2014-10-07
申请号：US13450084
申请日：2012-04-18
申请人： Craig Knull , Justin Forbes
发明人： Craig Knull , Justin Forbes
摘要： A downhole tool having a progressive cavity mud motor with an impact generator disposed within the mud motor rotor or bearing assembly. In one embodiment, the impact generator includes a mud turbine connected to a eccentric ring that encircles and periodically strikes an anvil surface of a percussion shaft. The eccentric ring is pivotable between an engaged striking position and a disengaged non-striking position. The percussion shaft is coupled to a drill bit though a splined connector that provides limited slip for transmitting rotation of the mud motor rotor to the drill bit and for transmitting percussion strikes against the anvil to the drill bit without the need to accelerate the entire drill string.
摘要翻译： 一种井下工具，其具有排放在泥浆马达转子或轴承组件内的冲击发生器的渐进型泥浆马达。 在一个实施例中，冲击发生器包括连接到偏心环的泥浆涡轮机，其围绕并周期性地撞击冲击轴的砧座表面。 偏心环可在接合的打击位置和分离的非打击位置之间枢转。 冲击轴通过花键连接器连接到钻头，该连接器提供有限滑动以将泥浆马达转子的旋转传递到钻头，并且用于将撞击砧座撞击到钻头上，而不需要加速整个钻柱 。
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公开(公告)号：US20130075167A1
公开(公告)日：2013-03-28
申请号：US13241795
申请日：2011-09-23
申请人： Craig Knull , Jason Maw
发明人： Craig Knull , Jason Maw
IPC分类号： E21B10/36
摘要： A rotary drag bit has one or more fixed composite cutting structures formed from a plurality of discrete prefabricated cutters that abut each other along complementary side surfaces, the composite cutting structure being placed and oriented on the cutting face of the rotating body so that the composite cutting structure presents a cutting profile that does not expose any portion of the cutting face that is between or behind the composite cutting structure, with respect to the direction of travel of the composite cutting structure during boring, to the uncut earth formation as the body is rotated during boring.
摘要翻译： 旋转牵引钻头具有一个或多个固定的复合切割结构，其由沿着互补的侧表面彼此邻接的多个分立的预制切割器形成，复合切割结构被放置并定向在旋转体的切割面上，使得复合切割 结构呈现切割轮廓，其不会使复合切割结构之间或之后的切割面的任何部分相对于复合切割结构在钻孔期间的行进方向暴露于主体旋转时的未切割的地层 在无聊期间。
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公开(公告)号：US20130292185A1
公开(公告)日：2013-11-07
申请号：US13465162
申请日：2012-05-07
申请人： CRAIG KNULL
发明人： CRAIG KNULL , Kevin CHRISTENSON
CPC分类号： E21B10/567 , E21B10/573 , E21B10/62
摘要： A fixed cutter drill bit that includes one or more integrally-mounted rotating disc with cutters around the circumference of the disc. Each disc is mounted to bearings to handle the torque generated and the weight on bit required to cut the formation. The mounting angle of the disc generates a torque causing the disc to rotate. As the disc rotates, new cutters are presented to the formation. The discs may vary in size, mounting location and number so as to cover entire bladed or just a certain portions of blades. The exposure of the disc could also be set to enable it to rotate while under load, e.g., the cutters on the outside of the bit may contact the formation while the inner half of the disc is protected by a fixed blade.
摘要翻译： 一种固定的切割钻头，其包括一个或多个整体安装的旋转盘，其具有围绕圆周的切割器。 每个盘安装到轴承上以处理产生的扭矩和切割地层所需的重量。 盘的安装角度产生使盘旋转的扭矩。 当盘旋转时，新的刀具被呈现给地层。 盘可以在尺寸，安装位置和数量上变化，以便覆盖叶片的整个叶片或仅某一部分。 盘的曝光也可以被设定为使其能够在负载下旋转，例如，钻头的外侧上的切割器可以接触地层，同时盘的内半部被固定刀片保护。
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公开(公告)号：US06330912B1
公开(公告)日：2001-12-18
申请号：US09497872
申请日：2000-02-04
申请人： Ian Gillis , Craig Knull
发明人： Ian Gillis , Craig Knull
IPC分类号： E21B3313
摘要： A pack-off bushing for placement inside an outer conduit while a fluid is passed through an inner conduit positioned within the outer conduit. The bushing includes a mandrel having a mandrel passage extending axially therethrough, a housing carried on the mandrel and capable of axial movement relative to the mandrel and a balancing system associated with the mandrel and the housing for applying a balancing force to the mandrel to oppose an axial mandrel force applied to the mandrel.
摘要翻译： 用于放置在外管道内的包装衬套，同时流体通过位于外导管内的内导管。 衬套包括具有轴向延伸穿过其中的心轴通道的心轴，承载在心轴上并且能够相对于心轴轴向运动的壳体，以及与心轴和壳体相关联的平衡系统，用于向心轴施加平衡力以对抗 轴向心轴力施加到心轴。
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公开(公告)号：US09038752B2
公开(公告)日：2015-05-26
申请号：US13241795
申请日：2011-09-23
申请人： Craig Knull , Jason Maw
发明人： Craig Knull , Jason Maw
摘要： A rotary drag bit has one or more fixed composite cutting structures formed from a plurality of discrete prefabricated cutters that abut each other along complementary side surfaces, the composite cutting structure being placed and oriented on the cutting face of the rotating body so that the composite cutting structure presents a cutting profile that does not expose any portion of the cutting face that is between or behind the composite cutting structure, with respect to the direction of travel of the composite cutting structure during boring, to the uncut earth formation as the body is rotated during boring.
摘要翻译： 旋转牵引钻头具有一个或多个固定的复合切割结构，其由沿着互补的侧表面彼此邻接的多个分立的预制切割器形成，复合切割结构被放置并定向在旋转体的切割面上，使得复合切割 结构呈现切割轮廓，其不会使复合切割结构之间或之后的切割面的任何部分相对于复合切割结构在钻孔期间的行进方向暴露于主体旋转时的未切割的地层 在无聊期间。
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公开(公告)号：US08881848B2
公开(公告)日：2014-11-11
申请号：US13465162
申请日：2012-05-07
申请人： Craig Knull , Kevin Christenson
发明人： Craig Knull , Kevin Christenson
IPC分类号： E21B10/36
CPC分类号： E21B10/567 , E21B10/573 , E21B10/62
摘要： A fixed cutter drill bit that includes one or more integrally-mounted rotating disc with cutters around the circumference of the disc. Each disc is mounted to bearings to handle the torque generated and the weight on bit required to cut the formation. The mounting angle of the disc generates a torque causing the disc to rotate. As the disc rotates, new cutters are presented to the formation. The discs may vary in size, mounting location and number so as to cover entire bladed or just a certain portions of blades. The exposure of the disc could also be set to enable it to rotate while under load, e.g., the cutters on the outside of the bit may contact the formation while the inner half of the disc is protected by a fixed blade.
摘要翻译： 一种固定的切割钻头，其包括一个或多个整体安装的旋转盘，其具有围绕圆周的切割器。 每个盘安装到轴承上以处理产生的扭矩和切割地层所需的重量。 盘的安装角度产生使盘旋转的扭矩。 当盘旋转时，新的刀具被呈现给地层。 盘可以在尺寸，安装位置和数量上变化，以便覆盖叶片的整个叶片或仅某一部分。 盘的曝光也可以被设定为使其能够在负载下旋转，例如，钻头的外侧上的切割器可以接触地层，同时盘的内半部被固定刀片保护。
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