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公开(公告)号：US07984771B2
公开(公告)日：2011-07-26
申请号：US12887045
申请日：2010-09-21
IPC分类号： E21B7/24
CPC分类号： E21B17/07
摘要： Apparatus and methods are described for highly attenuating vibrations of a drillstring assembly while drilling. In one embodiment, vibrations are attenuated by introducing one or more vibration attenuation modules at appropriate assembly locations. For example, vibration attenuation modules may be inserted at locations where vibration energy is expected to be maximal. In one embodiment the vibration attenuation modules include cavities loosely packed with particles of solid material such as sand or metallic powder. In one embodiment, the cavity walls are rough and/or include geometric features that enhance vibration energy transfer to the loosely packed particles in the cavity(ies). The vibration energy is dissipated via friction and inelastic particle-particle and particle-wall collisions that occur as a result of drillstring motion.
摘要翻译： 描述了用于在钻孔时高度衰减钻柱组件的振动的装置和方法。 在一个实施例中，通过在适当的组装位置引入一个或多个振动衰减模块来衰减振动。 例如，振动衰减模块可以插入在预期振动能量最大的位置。 在一个实施例中，振动衰减模块包括松散地填充有诸如砂或金属粉末的固体材料颗粒的空腔。 在一个实施例中，空腔壁是粗糙的和/或包括几何特征，其增强振动能量传递到空腔中松散包装的颗粒。 振动能量通过钻柱运动产生的摩擦和非弹性粒子 - 粒子和粒子 - 壁碰撞消散。
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公开(公告)号：US08307914B2
公开(公告)日：2012-11-13
申请号：US12556111
申请日：2009-09-09
申请人： Demosthenis Pafitis , Jahir Pabon , Joachim Sihler
发明人： Demosthenis Pafitis , Jahir Pabon , Joachim Sihler
摘要： Drill bits and methods of drilling curved boreholes comprising a drill bit including a bit body and one or more cutting blades positioned within the bit body, the one or more blades individually actuatable to a plurality of cut depths. Another aspect of the invention provides a method for drilling a curved borehole. The method includes: providing a drill string including a drill bit including a bit body and one or more blades positioned within the bit body, the one or more blades individually actuatable to a plurality of cut depths; rotating the drill string; and selectively actuating the one or more blades to a plurality of cut depths; thereby drilling a curved borehole.
摘要翻译： 钻头和钻孔方法，其包括钻头，钻头包括钻头体和位于钻头体内的一个或多个切割刀片，所述一个或多个刀片可单独地致动到多个切割深度。 本发明的另一方面提供了一种用于钻出弯曲钻孔的方法。 该方法包括：提供钻柱，其包括钻头，钻头包括钻头体和位于钻头体内的一个或多个刀片，所述一个或多个刀片可独立地致动到多个切削深度; 旋转钻柱; 以及选择性地将所述一个或多个叶片致动到多个切割深度; 从而钻出弯曲的钻孔。
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公开(公告)号：US20110220417A1
公开(公告)日：2011-09-15
申请号：US12556111
申请日：2009-09-09
申请人： DEMOSTHENIS PAFITIS , Jahir Pabon , Joachim Sihler
发明人： DEMOSTHENIS PAFITIS , Jahir Pabon , Joachim Sihler
摘要： The invention provides drill bits and methods of drilling curved boreholes. One aspect of the invention provides a drill bit including a bit body and one or more blades positioned within the bit body, the one or more blades individually actuatable to a plurality of cut depths. Another aspect of the invention provides a method for drilling a curved borehole. The method includes: providing a drill string including a drill bit including a bit body and one or more blades positioned within the bit body, the one or more blades individually actuatable to a plurality of cut depths; rotating the drill string; and selectively actuating the one or more blades to a plurality of cut depths; thereby drilling a curved borehole.
摘要翻译： 本发明提供钻头和钻孔弯曲钻孔的方法。 本发明的一个方面提供了一种钻头，其包括钻头本体和位于钻头体内的一个或多个刀片，所述一个或多个刀片可独立地致动到多个切削深度。 本发明的另一方面提供了一种用于钻出弯曲钻孔的方法。 该方法包括：提供钻柱，其包括钻头，钻头包括钻头体和位于钻头体内的一个或多个刀片，所述一个或多个刀片可独立地致动到多个切削深度; 旋转钻柱; 以及选择性地将所述一个或多个叶片致动到多个切割深度; 从而钻出弯曲的钻孔。
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公开(公告)号：US07729860B2
公开(公告)日：2010-06-01
申请号：US11490974
申请日：2006-07-21
IPC分类号： G01V1/40
CPC分类号： G01V1/44
摘要： A method and system is provided for determining the value of an attribute of ambient energy at a drilling assembly at the bottom of a borehole. Ambient energy includes kinetic energy, hydraulic energy and thermal energy. Attributes include vibration frequency spectrum, pressure difference, and temperature difference. The method uses energy harvested by at least one energy-harvesting sensor to power the system. The system generates data signals from at least one energy-harvesting sensor at one or more locations along a downhole drilling assembly, and transmits data up the borehole.
摘要翻译： 提供了一种方法和系统，用于确定在钻孔底部的钻井组件处的环境能量属性的值。 环境能量包括动能，液压能和热能。 属性包括振动频谱，压力差和温差。 该方法使用由至少一个能量收集传感器收获的能量来为系统供电。 该系统在沿着井下钻井组件的一个或多个位置处从至少一个能量收集传感器生成数据信号，并将数据传送到钻孔。
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公开(公告)号：US20080033653A1
公开(公告)日：2008-02-07
申请号：US11490974
申请日：2006-07-21
IPC分类号： G01V1/40
CPC分类号： G01V1/44
摘要： A method and system is provided for determining the value of an attribute of ambient energy at a drilling assembly at the bottom of a borehole. Ambient energy includes kinetic energy, hydraulic energy and thermal energy. Attributes include vibration frequency spectrum, pressure difference, and temperature difference. The method uses energy harvested by at least one energy-harvesting sensor to power the system. The system generates data signals from at least one energy-harvesting sensor at one or more locations along a downhole drilling assembly, and transmits data up the borehole.
摘要翻译： 提供了一种方法和系统，用于确定在钻孔底部的钻井组件处的环境能量属性的值。 环境能量包括动能，液压能和热能。 属性包括振动频谱，压力差和温差。 该方法使用由至少一个能量收集传感器收获的能量来为系统供电。 该系统在沿着井下钻井组件的一个或多个位置处从至少一个能量收集传感器生成数据信号，并将数据传送到钻孔。
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公开(公告)号：US08469117B2
公开(公告)日：2013-06-25
申请号：US13564705
申请日：2012-08-01
摘要： The invention provides drill bits and methods of drilling curved boreholes. One aspect of the invention provides a drill bit including a bit body and one or more blades positioned within the bit body, the one or more blades individually actuatable to a plurality of cut depths. Another aspect of the invention provides a method for drilling a curved borehole. The method includes: providing a drill string including a drill bit including a bit body and one or more blades positioned within the bit body, the one or more blades individually actuatable to a plurality of cut depths; rotating the drill string; and selectively actuating the one or more blades to a plurality of cut depths; thereby drilling a curved borehole.
摘要翻译： 本发明提供钻头和钻孔弯曲钻孔的方法。 本发明的一个方面提供了一种钻头，其包括钻头体和位于钻头体内的一个或多个刀片，所述一个或多个刀片可独立地致动到多个切削深度。 本发明的另一方面提供了一种用于钻出弯曲钻孔的方法。 该方法包括：提供钻柱，其包括钻头，钻头包括钻头体和位于钻头体内的一个或多个刀片，所述一个或多个刀片可独立地致动到多个切削深度; 旋转钻柱; 以及选择性地将所述一个或多个叶片致动到多个切割深度; 从而钻出弯曲的钻孔。
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公开(公告)号：US20120292115A1
公开(公告)日：2012-11-22
申请号：US13564705
申请日：2012-08-01
摘要： The invention provides drill bits and methods of drilling curved boreholes. One aspect of the invention provides a drill bit including a bit body and one or more blades positioned within the bit body, the one or more blades individually actuatable to a plurality of cut depths. Another aspect of the invention provides a method for drilling a curved borehole. The method includes: providing a drill string including a drill bit including a bit body and one or more blades positioned within the bit body, the one or more blades individually actuatable to a plurality of cut depths; rotating the drill string; and selectively actuating the one or more blades to a plurality of cut depths; thereby drilling a curved borehole.
摘要翻译： 本发明提供钻头和钻孔弯曲钻孔的方法。 本发明的一个方面提供了一种钻头，其包括钻头体和位于钻头体内的一个或多个刀片，所述一个或多个刀片可独立地致动到多个切削深度。 本发明的另一方面提供了一种用于钻出弯曲钻孔的方法。 该方法包括：提供钻柱，其包括钻头，钻头包括钻头体和位于钻头体内的一个或多个刀片，所述一个或多个刀片可独立地致动到多个切削深度; 旋转钻柱; 以及选择性地将所述一个或多个叶片致动到多个切割深度; 从而钻出弯曲的钻孔。
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8.发明申请ELECTROMAGNETIC DEVICE HAVING COMPACT FLUX PATHS FOR HARVESTING ENERGY FROM VIBRATIONS 审中-公开具有用于从振动收集能量的紧凑型通路板的电磁装置公开(公告)号：US20100194117A1
公开(公告)日：2010-08-05
申请号：US12366119
申请日：2009-02-05
申请人： Jahir A. Pabon , Julio Guerrero , Joachim Sihler , Jeffrey H. Lang , Alex Slocum , Zachary Trimble , Hongshen Ma
发明人： Jahir A. Pabon , Julio Guerrero , Joachim Sihler , Jeffrey H. Lang , Alex Slocum , Zachary Trimble , Hongshen Ma
IPC分类号： F03G7/08 , H02K41/035
CPC分类号： H02K35/02
摘要： Electrical energy is produced by harvesting mechanical energy in the form of vibrations which are generally present in tools during the process of drilling oil wells. Electrical energy production is based on the Faraday induction principle whereby changes, i.e., movement, in magnetic flux through a coil induce an electric current through the coil. The changes in magnetic flux are produced by relative motion between at least one set of magnets and at least one coil. In particular, as the flux lines change due to the movement of the magnets, they remain perpendicular to both the direction of motion of the magnets as well as a planar or cylindrical surface defined by the coils. As a result, output for a given size of device is enhanced. Further, flexibility in adapting device form factor to particular shapes is enhanced. For example, a relatively flat device may be implemented using flexural bearing support of the magnets and coils on a printed circuit. The flexural bearings may also function as spring members that define the resonant frequency of the device. Alternative embodiments may be characterized by cylindrical or annular form factors.
摘要翻译： 通过在钻井过程中通常存在于工具中的振动的形式收获机械能来产生电能。 电能产生基于法拉第感应原理，其中通过线圈的磁通中的变化，即运动引起通过线圈的电流。 磁通量的变化通过至少一组磁体与至少一个线圈之间的相对运动产生。 特别地，随着磁通线由于磁体的移动而变化，它们保持垂直于磁体的运动方向以及由线圈限定的平面或圆柱形表面。 结果，增强了给定尺寸的装置的输出。 此外，增强了将设备形状因子适应于特定形状的灵活性。 例如，可以使用在印刷电路上的磁体和线圈的弯曲轴承支撑来实现相对平坦的装置。 弯曲轴承还可以用作限定装置的谐振频率的弹簧构件。 替代实施例可以由圆柱形或环形形状因子表征。
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公开(公告)号：US20080066965A1
公开(公告)日：2008-03-20
申请号：US11523848
申请日：2006-09-20
IPC分类号： E21B7/24
CPC分类号： E21B17/07
摘要： Apparatus and methods are described for highly attenuating vibrations of a drillstring assembly while drilling. In one embodiment, vibrations are attenuated by introducing one or more vibration attenuation modules at appropriate assembly locations. For example, vibration attenuation modules may be inserted at locations where vibration energy is expected to be maximal. In one embodiment the vibration attenuation modules include cavities loosely packed with particles of solid material such as sand or metallic powder. In one embodiment, the cavity walls are rough and/or include geometric features that enhance vibration energy transfer to the loosely packed particles in the cavity(ies). The vibration energy is dissipated via friction and inelastic particle-particle and particle-wall collisions that occur as a result of drillstring motion.
摘要翻译： 描述了用于在钻孔时高度衰减钻柱组件的振动的装置和方法。 在一个实施例中，通过在适当的组装位置引入一个或多个振动衰减模块来衰减振动。 例如，振动衰减模块可以插入在预期振动能量最大的位置。 在一个实施例中，振动衰减模块包括松散地填充有诸如砂或金属粉末的固体材料颗粒的空腔。 在一个实施例中，空腔壁是粗糙的和/或包括几何特征，其增强振动能量传递到空腔中松散包装的颗粒。 振动能量通过钻柱运动产生的摩擦和非弹性粒子 - 粒子和粒子 - 壁碰撞消散。
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公开(公告)号：US20070286537A1
公开(公告)日：2007-12-13
申请号：US11818017
申请日：2007-06-13
IPC分类号： F16C32/06
CPC分类号： F16C32/064 , F16C29/025 , F16C32/0696
摘要： A compact surface self-compensated hydrostatic bearing includes a rotor assembly including a rotor plate having upper and lower fluid restricting faces, a rotor top and bottom, each having bearing surfaces angled with respect to an axis of rotation of the rotor assembly; a stator assembly including a stator top and a stator bottom housing the rotor assembly therebetween, the stator top and bottom having bearing surfaces facing and spaced apart from the rotor top and bottom bearing surfaces forming upper and lower bearing gaps, respectively, therebetween; the stator top and bottom including a lower and an upper fluid restricting surface, respectively, facing and spaced apart from the rotor upper and rotor lower fluid restricting faces, respectively, forming upper and lower restricting gaps, respectively, therebetween; and a fluid supply system configured to supply pressurized fluid to the bearing gaps and into the upper and lower fluid restricting gaps.
摘要翻译： 紧凑的表面自补偿静液压轴承包括转子组件，转子组件包括具有上流体限制面和下流体限制面的转子板，转子顶部和底部，每个具有相对于转子组件的旋转轴线成角度的轴承表面; 定子组件包括定子顶部和定子底部，其中转子组件位于它们之间，定子顶部和底部具有面对并分别与转子顶部和底部轴承表面间隔开的转子顶部和底部轴承表面的轴承表面; 所述定子的顶部和底部分别包括下部和上部流体限制表面，所述下部和上部流体限制表面分别与所述转子上部和下部流体限制面相对并间隔开，并分别在其间形成上部和下部限制间隙; 以及流体供应系统，其构造成将加压流体供应到所述轴承间隙并进入所述上部和下部流体限制间隙。
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