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公开(公告)号：US09151118B2
公开(公告)日：2015-10-06
申请号：US12955478
申请日：2010-11-29
CPC分类号： E21B10/26 , E21B10/62 , E21B17/1078
摘要： A downhole apparatus for reaming a borehole incorporates two sets of cutting structures into two integral blade stabilizers, one oriented downhole and the other oriented uphole. The cutting structures comprise polycrystalline diamond cutters that are brazed into a wedge of steel that is inserted into the body of the reamers in an axial direction and retained by a stop block and retention cover that is bolted into the reamer. The two integral blade stabilizers have a combination left hand/right hand blade wrapping to provide 360° support around the circumference of the reamer. Between the two stabilizers, an impeller and a flow accelerator agitate cuttings on the low side of the borehole to mix the cuttings in with the drilling mud.
摘要翻译： 用于铰孔钻孔的井下装置将两组切割结构组合成两个一体式叶片稳定器，一个定向井下和另一个定向的井。 切割结构包括多孔金刚石切割器，其被钎焊到钢楔中，该楔形楔在轴向方向插入到铰刀的主体中并由止动块和固定盖保持在螺栓中。 两个整体的叶片稳定器具有左手/右手叶片组合的组合，以在铰刀周围提供360°的支撑。 在两个稳定器之间，叶轮和流动促进器在钻孔的低侧搅动切屑以将钻屑与钻井泥浆混合。
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公开(公告)号：US20120273224A1
公开(公告)日：2012-11-01
申请号：US13097524
申请日：2011-04-29
CPC分类号： E21B21/103 , E21B34/066
摘要： An electronic control system for a downhole tool controls an operational state of the downhole tool. The electronic control system receives a signal from uphole, and drives a motor to operate a valve, alternately fluidly connecting a chamber in the valve to drilling fluid in a bore of the downhole tool, causing an activation mechanism to configure the downhole tool into a first state, and fluidly connecting the chamber to an annulus surrounding the downhole tool, venting mud into the annulus.
摘要翻译： 用于井下工具的电子控制系统控制井下工具的操作状态。 电子控制系统从井上接收信号，并驱动马达操作阀，交替地将阀门中的室流体地连接到井下工具的钻孔中的钻井流体，使得启动机构将井下工具配置成第一 并且将腔室流体连接到围绕井下工具的环形空间，将泥浆排放到环空中。
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公开(公告)号：US20120211251A1
公开(公告)日：2012-08-23
申请号：US13029548
申请日：2011-02-17
CPC分类号： E21B28/00
摘要： A downhole tool comprises a pulse generator that can generate longitudinal pulses in a drill string. A poppet is longitudinally moved in and out of an orifice in the pulse generator reducing the flow of drilling mud temporarily, generating a longitudinal pulse. The longitudinal pulse generator may be combined with a conventional transverse pulse generator to create a pulse generator capable of generating pulses in both transverse and longitudinal directions.
摘要翻译： 井下工具包括可在钻柱中产生纵向脉冲的脉冲发生器。 提升阀纵向移入和移出脉冲发生器中的孔口，以暂时减少钻井泥浆的流动，产生纵向脉冲。 纵向脉冲发生器可以与传统的横向脉冲发生器组合以产生能够在横向和纵向上产生脉冲的脉冲发生器。
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公开(公告)号：US20120132469A1
公开(公告)日：2012-05-31
申请号：US12955478
申请日：2010-11-29
CPC分类号： E21B10/26 , E21B10/62 , E21B17/1078
摘要： A downhole apparatus for reaming a borehole incorporates two sets of cutting structures into two integral blade stabilizers, one oriented downhole and the other oriented uphole. The cutting structures comprise polycrystalline diamond cutters that are brazed into a wedge of steel that is inserted into the body of the reamers in an axial direction and retained by a stop block and retention cover that is bolted into the reamer. The two integral blade stabilizers have a combination left hand/right hand blade wrapping to provide 360° support around the circumference of the reamer. Between the two stabilizers, an impeller and a flow accelerator agitate cuttings on the low side of the borehole to mix the cuttings in with the drilling mud.
摘要翻译： 用于铰孔钻孔的井下装置将两组切割结构组合成两个一体式叶片稳定器，一个定向井下和另一个定向的井。 切割结构包括多孔金刚石切割器，其被钎焊到钢楔中，该楔形楔在轴向方向插入到铰刀的主体中并由止动块和固定盖保持在螺栓中。 两个整体的叶片稳定器具有左手/右手叶片组合的组合，以在铰刀周围提供360°的支撑。 在两个稳定器之间，叶轮和流动促进器在钻孔的低侧搅动切屑以将钻屑与钻井泥浆混合。
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公开(公告)号：US08776896B2
公开(公告)日：2014-07-15
申请号：US13097524
申请日：2011-04-29
CPC分类号： E21B21/103 , E21B34/066
摘要： An electronic control system for a downhole tool controls an operational state of the downhole tool. The electronic control system receives a signal from uphole, and drives a motor to operate a valve, alternately fluidly connecting a chamber in the valve to drilling fluid in a bore of the downhole tool, causing an activation mechanism to configure the downhole tool into a first state, and fluidly connecting the chamber to an annulus surrounding the downhole tool, venting mud into the annulus.
摘要翻译： 用于井下工具的电子控制系统控制井下工具的操作状态。 电子控制系统从井上接收信号，并驱动马达操作阀，交替地将阀门中的室流体地连接到井下工具的钻孔中的钻井流体，使得启动机构将井下工具配置成第一 并且将腔室流体连接到围绕井下工具的环形空间，将泥浆排放到环空中。
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公开(公告)号：US08733469B2
公开(公告)日：2014-05-27
申请号：US13029548
申请日：2011-02-17
IPC分类号： E21B4/14
CPC分类号： E21B28/00
摘要： A downhole tool comprises a pulse generator that can generate longitudinal pulses in a drill string. A poppet is longitudinally moved in and out of an orifice in the pulse generator reducing the flow of drilling mud temporarily, generating a longitudinal pulse. The longitudinal pulse generator may be combined with a conventional transverse pulse generator to create a pulse generator capable of generating pulses in both transverse and longitudinal directions.
摘要翻译： 井下工具包括可在钻柱中产生纵向脉冲的脉冲发生器。 提升阀纵向移入和移出脉冲发生器中的孔口，以暂时减少钻井泥浆的流动，产生纵向脉冲。 纵向脉冲发生器可以与传统的横向脉冲发生器组合以产生能够在横向和纵向上产生脉冲的脉冲发生器。
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公开(公告)号：US20120031676A1
公开(公告)日：2012-02-09
申请号：US12850670
申请日：2010-08-05
IPC分类号： E21B7/04
摘要： A directional drilling system and method are provided for directional drilling a borehole by continuous rotating of the drill string in combination with an arrangement of drilling motor assemblies at the lower end of the drill string to effect drilling along a curved path and a substantially straight path. A first drilling motor assembly is coupled to a drill bit and operable to rotate the drill bit to effect drilling of the borehole. A second drilling motor assembly, positioned on the drill string above the first drilling motor assembly, is operable to rotate the first drilling motor assembly in a direction opposite the direction of rotation imparted to the drill string from the surface and to the drill bit by the first drilling motor assembly. A control system associated with the second drilling motor assembly controls fluid flow through the second drilling motor assembly so that the first drilling motor assembly is substantially rotationally stationary with respect to the rotating drill string when drilling a curved path of the borehole.
摘要翻译： 提供了一种定向钻井系统和方法，用于通过将钻柱与在钻柱的下端处的钻孔马达组件的布置相结合地沿着弯曲路径和基本上直的路径进行钻孔来定向钻孔。 第一钻孔马达组件联接到钻头并且可操作以旋转钻头以实现钻孔的钻孔。 定位在第一钻孔马达组件上方的钻柱上的第二钻机马达组件可操作以使第一钻机马达组件沿着与钻杆相反的方向与钻头相反的方向旋转，该旋转方向由 第一钻电机总成。 与第二钻井马达组件相关联的控制系统控制通过第二钻井马达组件的流体流动，使得当钻井孔的弯曲路径时，第一钻井马达组件相对于旋转钻柱基本上旋转地固定。
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公开(公告)号：US08567528B2
公开(公告)日：2013-10-29
申请号：US12850670
申请日：2010-08-05
IPC分类号： E21B4/16
摘要： A directional drilling system and method are provided for directional drilling a borehole by continuous rotating of the drill string in combination with an arrangement of drilling motor assemblies at the lower end of the drill string to effect drilling along a curved path and a substantially straight path. A first drilling motor assembly is coupled to a drill bit and operable to rotate the drill bit to effect drilling of the borehole. A second drilling motor assembly, positioned on the drill string above the first drilling motor assembly, is operable to rotate the first drilling motor assembly in a direction opposite the direction of rotation imparted to the drill string from the surface and to the drill bit by the first drilling motor assembly. A control system associated with the second drilling motor assembly controls fluid flow through the second drilling motor assembly so that the first drilling motor assembly is substantially rotationally stationary with respect to the rotating drill string when drilling a curved path of the borehole.
摘要翻译： 提供了一种定向钻井系统和方法，用于通过将钻柱与在钻柱的下端处的钻孔马达组件的布置相结合地沿着弯曲路径和基本上直的路径进行钻孔来定向钻孔。 第一钻孔马达组件联接到钻头并且可操作以旋转钻头以实现钻孔的钻孔。 定位在第一钻孔马达组件上方的钻柱上的第二钻机马达组件可操作以使第一钻机马达组件沿着与钻杆相反的方向与钻头相反的方向旋转，该旋转方向由 第一钻电机总成。 与第二钻井马达组件相关联的控制系统控制通过第二钻井马达组件的流体流动，使得当钻井孔的弯曲路径时，第一钻井马达组件相对于旋转钻柱基本上旋转地固定。
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公开(公告)号：US08544567B2
公开(公告)日：2013-10-01
申请号：US12638175
申请日：2009-12-15
申请人： Laurier E. Comeau , Geir Hareland , Jeff Janzen , John Kaminski
发明人： Laurier E. Comeau , Geir Hareland , Jeff Janzen , John Kaminski
CPC分类号： E21B10/602 , E21B7/24 , E21B10/38 , E21B10/60 , E21B28/00
摘要： A drill bit comprises: a drill bit head having a cutting face with one or more fixed cutting elements; a flow passage extending through the drill bit head to the cutting face; a flow interrupter within the drill bit head and positioned to interrupt flow of fluid through the flow passage; and a power section connected to drive the flow interrupter and cause, in operation, variable flow of fluid through the flow passage. A method of drilling comprises: flowing fluid through a flow passage extending through a drill bit head to a cutting face of the drill bit head, the cutting face having one or more fixed cutting elements; and driving a flow interrupter within the drill bit head with a power section to interrupt the flow of fluid through the flow passage and cause variable flow of fluid through the flow passage.
摘要翻译： 钻头包括：钻头头，其具有带有一个或多个固定切割元件的切割面; 流动通道，其延伸穿过钻头头到切割面; 钻头头内的流动断流器，其定位成中断流过流动通道的流体; 以及连接以驱动所述流动断流器并且在操作中导致流体流过所述流动通道的可变流动的动力部分。 钻井方法包括：将流体流过延伸穿过钻头头的流动通道到钻头头的切割面，切割面具有一个或多个固定的切割元件; 以及用动力部分在钻头头内驱动一个流动断路器，以中断通过该流动通道的流体流动，并使流体流过该流动通道。
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公开(公告)号：US06290002B1
公开(公告)日：2001-09-18
申请号：US09245063
申请日：1999-02-05
IPC分类号： E21B704
CPC分类号： E21B7/068 , E21B7/067 , E21B10/36 , E21B17/1014
摘要： A drilling assembly and a method for directional drilling using the drilling assembly. The drilling assembly comprises a drilling bit, a near bit stabilizer and an adjustable gauge stabilizer. The near bit stabilizer is located a first axial distance from a distal end of the drilling assembly and has a near bit stabilizer gauge which is greater than a nominal drilling assembly gauge. The adjustable gauge stabilizer is located a second axial distance from the distal end, which is greater than the first axial distance, and is adjustable between an extended and retracted gauge. The retracted gauge is less than the near bit stabilizer gauge. A bit drop angle is created between the drilling assembly and the drilling bit, while a stabilizer angle is created between the near bit stabilizer and the adjustable gauge stabilizer. The combination of the bit drop angle and the stabilizer angle results in a net build angle of the drilling assembly, when the adjustable gauge stabilizer is adjusted to the retracted gauge, and a net drop angle when adjusted to the extended gauge.
摘要翻译： 钻井组件和使用钻井组件定向钻井的方法。 钻孔组件包括钻头，近钻头稳定器和可调量规稳定器。 近钻头稳定器位于距钻井组件的远端的第一轴向距离处，并且具有大于标称钻孔组件计的近位稳定器。 可调量规稳定器位于距离远端的第二轴向距离，其大于第一轴向距离，并且可在延伸和缩回量规之间调节。 回缩量规小于近位稳定器。 在钻头组件和钻头之间产生点落角，同时在近位稳定器和可调量规稳定器之间产生稳定角。 当将可调量规稳定器调节到缩回量规时，钻头组合的净建立角度与钻头下落角度和稳定器角度的组合导致，当调节到延伸量规时，净下落角度。
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