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1. 发明授权

US5332048A Method and apparatus for automatic closed loop drilling system 失效
标题翻译：自动闭环钻井系统的方法和装置
公开(公告)号：US5332048A
公开(公告)日：1994-07-26
申请号：US965200
申请日：1992-10-23
申请人： Lance D. Underwood , Harold D. Johnson , Charles H. Dewey
发明人： Lance D. Underwood , Harold D. Johnson , Charles H. Dewey
IPC分类号： E21B7/06 , E21B44/00 , E21B7/04
CPC分类号： E21B7/068 , E21B44/005
摘要： An automatic closed loop drilling system is disclosed for providing automatic directional drilling capabilities in a bottomhole assembly. The drilling system includes at least one adjustable stabilizer that varies in response to formational and drilling conditions encountered downhole. A microcontroller is preprogrammed with a desired range of formation characteristics or with a desired inclination or target area. The microcontroller compares actual sensed data with the desired data and adjusts the position of the stabilizer blades to vary the direction of drilling.
摘要翻译：公开了一种用于在井底组件中提供自动定向钻井能力的自动闭环钻井系统。钻井系统包括至少一个可调节的稳定器，其响应于井下遇到的形状和钻井条件而变化。微控制器被预编程有所需的形成特征范围或具有期望的倾斜度或目标区域。微控制器将实际检测到的数据与期望的数据进行比较，并调整稳定器叶片的位置以改变钻孔方向。

2. 发明授权

US5318138A Adjustable stabilizer 失效
标题翻译：可调节稳定器
公开(公告)号：US5318138A
公开(公告)日：1994-06-07
申请号：US965347
申请日：1992-10-23
申请人： Charles H. Dewey , Lance D. Underwood , Harold D. Johnson
发明人： Charles H. Dewey , Lance D. Underwood , Harold D. Johnson
IPC分类号： E21B17/10 , E21B23/04 , E21B7/00
CPC分类号： E21B17/1014 , E21B23/04
摘要： A downhole adjustable blade stabilizer is disclosed for varying the position of stabilizer blades to provide an increased ability to control the direction of drilling. The adjustable blade stabilizer includes a plurality of blades mounted in an angled track to permit axial and radial movement of the blades. The blades are driven by a piston in response to a pressure differential created by a sufficient flow of drilling mud through the stabilizer. The stabilizer blades are retracted by a spring when the pressure differential is eliminated. A positioning piston limits blade extension to a desired position. The positioning piston moves in response to a command signal, and remains in place until a new command signal is received. By maintaining the positioning piston in a locked position, the position of the blades can be reset to the prior position after the loss of pressure differential. A measuring device is provided in association with the positioning piston to enable precise measurement of blade position.
摘要翻译：公开了井下可调叶片稳定器，用于改变稳定器叶片的位置，以提供更大的控制钻孔方向的能力。可调叶片稳定器包括安装在成角度的轨道中以允许叶片的轴向和径向移动的多个叶片。叶片由活塞驱动，响应于通过稳定器的足够的钻井泥浆流产生的压力差。当压差被消除时，稳定器叶片由弹簧缩回。定位活塞将刀片延伸限制到所需位置。定位活塞响应于命令信号而移动，并保持在适当位置，直到接收到新的命令信号。通过将定位活塞保持在锁定位置，在压力差失去之后，叶片的位置可以重新设定到先前的位置。与定位活塞相关联地设置有测量装置，以能够精确地测量叶片的位置。

3. 发明授权

US5171139A Moineau motor with conduits through the stator 失效
标题翻译： Moineau电机带导管通过定子
公开(公告)号：US5171139A
公开(公告)日：1992-12-15
申请号：US798383
申请日：1991-11-26
申请人： Lance D. Underwood , Harold D. Johnson , Charles H. Dewey , Mark J. Hommel
发明人： Lance D. Underwood , Harold D. Johnson , Charles H. Dewey , Mark J. Hommel
IPC分类号： E21B4/02 , E21B17/00 , E21B17/18 , E21B36/00 , F04C2/107 , F04C15/00
CPC分类号： F04C15/0096 , E21B17/003 , E21B17/18 , E21B4/02 , F04C2/1075 , Y10T29/49229
摘要： A progressive cavity drilling motor is disclosed with a multiplicity of helically formed conduits positioned in a resilient stator. The conduits are placed between an inner wall of a motor casing and a helically formed through hole formed by the stator. The conduits are located in parallel with each of the semi circular lobes thereby reducing the thickness of the elastomer in the lobe area resulting in a reduction of the hysteresis in the elastomer that is caused by cyclic stress reversals of the stator during motor operation. The conduits additionally divert a portion of the drilling fluid through the stator conducting heat therefrom. In addition, one or more of the conduits may be utilized as a communication channel therethrough for measurement while drilling capabilities.
摘要翻译：公开了一种排列在弹性定子中的多个螺旋形导管的渐进腔钻机。导管被放置在电动机壳体的内壁和由定子形成的螺旋形通孔之间。导管与每个半圆形突起平行地设置，从而减小了凸起区域中的弹性体的厚度，导致弹性体中由马达操作期间的定子的循环应力反转引起的滞后。导管另外将一部分钻井液通过定子传导热量。此外，一个或多个管道可以用作穿过其中的通信通道，用于测量同时钻孔能力。

4. 发明申请

US20110067925A1 FLEXIBLE DIRECTIONAL DRILLING APPARATUS AND RELATED METHODS 失效
标题翻译：灵活方向钻孔装置及相关方法
公开(公告)号：US20110067925A1
公开(公告)日：2011-03-24
申请号：US12956889
申请日：2010-11-30
申请人： Lance D. Underwood , Charles H. Dewey
发明人： Lance D. Underwood , Charles H. Dewey
IPC分类号： E21B7/04
CPC分类号： E21B17/20 , E21B7/04
摘要： A bottom hole assembly to directionally drill a subterranean formation includes a drill bit, a stabilizer assembly located proximate to and behind the drill bit, a drilling assembly comprising a drive mechanism and a directional mechanism, and a flex housing integral with the drilling assembly.
摘要翻译：用于定向钻地下地层的底孔组件包括钻头，位于钻头附近和后面的稳定器组件，包括驱动机构和定向机构的钻孔组件以及与钻孔组件成一体的挠性壳体。

5. 发明授权

US07513318B2 Steerable underreamer/stabilizer assembly and method 有权
标题翻译：可调节分流器/稳定器组件及方法
公开(公告)号：US07513318B2
公开(公告)日：2009-04-07
申请号：US11333945
申请日：2006-01-18
申请人： Lance D. Underwood , Charles H. Dewey
发明人： Lance D. Underwood , Charles H. Dewey
IPC分类号： E21B7/04 , E21B10/26
CPC分类号： E21B7/067 , E21B10/322 , E21B17/1014
摘要： A bottom hole assembly includes a drill bit, a stabilized underreamer assembly located behind the drill bit, and a drilling assembly. A method to drill a formation includes positioning a stabilized underreamer assembly behind a drill bit, positioning a drilling assembly behind the stabilized underreamer assembly, and rotating the drill bit and stabilized underreamer assembly with the drilling assembly. A stabilized underreamer located between a directional drilling assembly and a drill bit includes at least one arm assembly extending from the stabilized underreamer assembly, wherein the arm assembly includes a stabilizer portion and an underreamer cutting structure.
摘要翻译：底孔组件包括钻头，位于钻头后面的稳定的扩孔器组件和钻孔组件。钻探地层的方法包括将稳定的扩孔器组件定位在钻头后面，将钻井组件定位在稳定的扩孔器组件后面，以及使钻头旋转并且使钻井组件稳定的扩孔器组件。位于定向钻井组件和钻头之间的稳定的扩孔器包括从稳定的扩孔器组件延伸的至少一个臂组件，其中臂组件包括稳定器部分和扩孔切割结构。

6. 发明授权

US07506703B2 Drilling and hole enlargement device 失效
公开(公告)号：US07506703B2
公开(公告)日：2009-03-24
申请号：US11334195
申请日：2006-01-18
申请人： John E. Campbell , Charles H. Dewey , Lance D. Underwood , Ronald G. Schmidt
发明人： John E. Campbell , Charles H. Dewey , Lance D. Underwood , Ronald G. Schmidt
IPC分类号： E21B10/32
CPC分类号： E21B10/322 , E21B10/325 , E21B21/10
摘要： An expandable drilling apparatus is deployed upon a distal end of a drillstring and includes a cutting head and a substantially tubular main body adjacent the cutting head providing a plurality of axial recesses configured to receive arm assemblies configured to translate between a retracted and an extended position. A flow switch actuates the arm assemblies when a drilling fluid pressure exceeds an activation value and the drilling apparatus includes a biasing member to reset the arm assemblies when the drilling fluid pressure falls below a reset value.

7. 发明申请

US20080245574A1 DRILLING AND HOLE ENLARGEMENT DEVICE 有权
标题翻译：钻孔和孔扩展装置
公开(公告)号：US20080245574A1
公开(公告)日：2008-10-09
申请号：US12140833
申请日：2008-06-17
申请人： John E. Campbell , Charles H. Dewey , Lance D. Underwood , Ronald G. Schmidt
发明人： John E. Campbell , Charles H. Dewey , Lance D. Underwood , Ronald G. Schmidt
IPC分类号： E21B7/28
CPC分类号： E21B10/322 , E21B10/325 , E21B21/10
摘要： An expandable drilling apparatus is deployed upon a distal end of a drillstring and includes a cutting head and a substantially tubular main body adjacent the cutting head providing a plurality of axial recesses configured to receive arm assemblies configured to translate between a retracted and an extended position. A flow switch actuates the arm assemblies when a drilling fluid pressure exceeds an activation value and the drilling apparatus includes a biasing member to reset the arm assemblies when the drilling fluid pressure falls below a reset value.
摘要翻译：可扩展钻孔设备部署在钻柱的远端上，并且包括切割头和与切割头相邻的基本上管状的主体，其提供多个轴向凹槽，其构造成接收构造成在缩回位置和伸出位置之间平移的臂组件。当钻井液压力超过激活值时，流量开关致动臂组件，并且当钻井液压力低于复位值时，钻井设备包括偏置构件以复位臂组件。

8. 发明授权

US5318137A Method and apparatus for adjusting the position of stabilizer blades 失效
标题翻译：用于调整稳定器叶片位置的方法和装置
公开(公告)号：US5318137A
公开(公告)日：1994-06-07
申请号：US965345
申请日：1992-10-23
申请人： Harold D. Johnson , Charles H. Dewey , Lance D. Underwood
发明人： Harold D. Johnson , Charles H. Dewey , Lance D. Underwood
IPC分类号： E21B17/10 , E21B7/08 , E21B47/12
CPC分类号： E21B17/1014
摘要： A telemetering system is disclosed for communicating command signals to a downhole adjustable blade stabilizer, and for transmitting encoded time/pressure signals back to the surface. The command signal provides information regarding a desired blade position for an adjustable blade stabilizer. The stabilizer sets a positioning piston in response to the command signal to limit the extent of blade expansion. A position sensor is provided in association with the positioning piston to measure precisely the position of the blades. An encoded signal is generated in response to the measurement and is transmitted to the surface in a combined time/pressure format to uniquely identify the position of the blades.
摘要翻译：公开了一种用于将命令信号传送到井下可调叶片稳定器并用于将编码的时间/压力信号传送回表面的遥测系统。命令信号提供关于可调节叶片稳定器的所需叶片位置的信息。稳定器响应于指令信号设置定位活塞以限制叶片膨胀的程度。与定位活塞相关联地设置位置传感器，以精确地测量叶片的位置。响应于测量产生编码信号，并以组合的时间/压力格式传送到表面，以唯一地识别刀片的位置。

9. 发明授权

US08640792B2 Flexible directional drilling apparatus and related methods 失效
标题翻译：灵活定向钻井设备及相关方法
公开(公告)号：US08640792B2
公开(公告)日：2014-02-04
申请号：US12956889
申请日：2010-11-30
申请人： Lance D. Underwood , Charles H. Dewey
发明人： Lance D. Underwood , Charles H. Dewey
IPC分类号： E21B7/04 , E21B10/26 , E21B17/10
CPC分类号： E21B17/20 , E21B7/04
摘要： A bottom hole assembly to directionally drill a subterranean formation includes a drill bit, a stabilizer assembly located proximate to and behind the drill bit, a drilling assembly comprising a drive mechanism and a directional mechanism, and a flex housing integral with the drilling assembly.
摘要翻译：用于定向钻地下地层的底孔组件包括钻头，位于钻头附近和后面的稳定器组件，包括驱动机构和定向机构的钻孔组件以及与钻孔组件成一体的挠性壳体。

10. 发明授权

US07861802B2 Flexible directional drilling apparatus and method 有权
标题翻译：灵活的定向钻井设备及方法
公开(公告)号：US07861802B2
公开(公告)日：2011-01-04
申请号：US11334707
申请日：2006-01-18
申请人： Lance D. Underwood , Charles H. Dewey
发明人： Lance D. Underwood , Charles H. Dewey
IPC分类号： E21B7/04 , E21B10/26
CPC分类号： E21B17/20 , E21B7/04
摘要： A bottom hole assembly to directionally drill a subterranean formation includes a drill bit, a stabilizer assembly located proximate to and behind the drill bit, a drilling assembly comprising a drive mechanism and a directional mechanism, and a flex member. Optionally, the flex member may be located between the drilling assembly and the stabilizer assembly or an integral to a housing of the drilling assembly. A method to drill a formation includes positioning a stabilizer assembly behind a drill bit and positioning a flex member between an output shaft of a drilling assembly and the stabilizer assembly. The method preferably includes rotating the drill bit, stabilizer assembly, and flex member with a drilling assembly and directing the trajectory of the drill bit and stabilizer assembly with a directional mechanism of the drilling assembly.
摘要翻译：用于定向钻地层的井底组件包括钻头，位于钻头附近和后方的稳定器组件，包括驱动机构和定向机构的钻孔组件以及挠性构件。可选地，柔性构件可以位于钻井组件和稳定器组件之间，或者与钻井组件的壳体成一体。钻探地层的方法包括将稳定器组件定位在钻头后面并将挠性构件定位在钻井组件的输出轴和稳定器组件之间。该方法优选地包括用钻孔组件旋转钻头，稳定器组件和挠性构件，并且用钻孔组件的定向机构引导钻头和稳定器组件的轨迹。

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