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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.发明授权Acoustic logging while drilling tool with active control of source orientation 有权钻孔工具的声学测井，主动控制光源方向公开(公告)号：US08861307B2
公开(公告)日：2014-10-14
申请号：US13232419
申请日：2011-09-14
申请人： Jahir Pabon
发明人： Jahir Pabon
CPC分类号： G01V1/46 , G01V1/52 , G01V2210/127
摘要： The subject disclosure relates to sonic logging while drilling. A transmitter and at least one receiver are mounted on a drill collar for performing sonic investigations of the formation traversing a borehole.
摘要翻译： 本发明涉及钻井时的声波测井。 发射器和至少一个接收器安装在钻铤上，用于对穿过钻孔的地层进行声波研究。
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公开(公告)号：US07623412B2
公开(公告)日：2009-11-24
申请号：US11369433
申请日：2006-03-07
申请人： Jahir Pabon , Chaur-Jian Hsu , Bikash K. Sinha
发明人： Jahir Pabon , Chaur-Jian Hsu , Bikash K. Sinha
IPC分类号： G01V1/00
CPC分类号： G01V1/50
摘要： Methods and apparatus facilitating measurement of anisotropy are disclosed. According to some aspects, anisotropy can be determined while drilling. Monopole/quadrupole interactions, as well as monitoring dipole excitations and other methods, may be used to find the principal shear directions of a formation while drilling or during wireline or other operations.
摘要翻译： 公开了各向异性测量方法和装置。 根据一些方面，钻孔时可以确定各向异性。 可以使用单极/四极相互作用以及监测偶极子激发和其它方法来在钻井或电缆或其它操作期间找到地层的主要剪切方向。
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公开(公告)号：US07529152B2
公开(公告)日：2009-05-05
申请号：US11125564
申请日：2005-05-10
CPC分类号： G01V1/50
摘要： Methods and apparatus facilitating radial profiling of shear slowness are disclosed. According to some aspects of the invention, acoustic tool bias is accounted for in the calculation of radial profiles. According so some aspects, acoustic tool bias is accounted for by replacing acoustic tool structure with a resonance-impedance model. The resonance-impedance modeling according to principles of the present invention is applicable to vertical, deviated, and horizontal boreholes.
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