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公开(公告)号：US06255818B1
公开(公告)日：2001-07-03
申请号：US09368341
申请日：1999-08-04
IPC分类号： G01V300
CPC分类号： G01R33/563
摘要： A magnetic resonance measurement apparatus that is subject to relative motion between the apparatus and a specimen along a path includes a magnet, antennae and a circuit. The magnet polarizes the specimen, and the antennae are spatially distributed along the path. The circuit uses the antennae to perform magnetic resonance measurements and use the spatial distribution of the antennae to establish different polarization times for the magnetic resonance measurements.
摘要翻译： 在该装置和沿路径的试样之间进行相对运动的磁共振测量装置包括磁体，天线和电路。 磁体使样本极化，并且天线沿着路径空间分布。 该电路使用天线进行磁共振测量，并使用天线的空间分布为磁共振测量建立不同的极化时间。
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公开(公告)号：US20100208766A1
公开(公告)日：2010-08-19
申请号：US12768085
申请日：2010-04-27
CPC分类号： E21B47/1005 , E21B36/04 , E21B47/042
摘要： A technique that is usable with a well includes changing the temperature of a local environment of a distributed temperature sensor, which is deployed in a region of the well and using the sensor to acquire measurements of a temperature versus depth profile. The region contains at least two different well fluid layers, and the technique includes determining the depth of a boundary of at least one of the well fluid layers based at least in part on a response of the temperature versus depth profile to the changing of the temperature.
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3.发明授权
公开(公告)号：US5426368A
公开(公告)日：1995-06-20
申请号：US9467
申请日：1993-01-27
摘要： A logging method and apparatus for investigating the geometrical characteristics of a borehole comprises an array of circumferentially spaced apart azimuthal current electrodes (Aaz.sub.i) disposed on a sonde (21), and an annular current electrode (A) longitudinally spaced apart from the array of azimuthal electrodes. In a method of investigating the geometrical characteristics of the borehole, currents (Ic.sub.i) are emitted between the azimuthal electrodes and the annular electrode (A). Monitor electrodes (M, Maz.sub.i) are respectively associated with the current electrodes (A, Aaz.sub.i). The potential differences (Vc.sub.i) between annular monitor electrodes (MAz.sub.i) are detected. In response to the detected potential differences, output signals (Rc.sub.i) are generated indicative of the distances between the sonde and the wall of the borehole in a plurality of directions around the sonde. The technique can be applied to azimuthal resistivity measurements of earth formations for correcting said measurements for sonde eccentring and/or the irregular shape of the section of the borehole.
摘要翻译： 用于研究钻孔的几何特征的测井方法和装置包括设置在探头（21）上的周向间隔开的方位电流电极（Aazi）的阵列，以及与方位角阵列纵向间隔开的环形电流电极（A） 电极。 在研究钻孔的几何特征的方法中，在方位电极和环形电极（A）之间发射电流（Ici）。 监视电极（M，Mazi）分别与当前电极（A，Aazi）相关联。 检测环形监测电极（MAzi）之间的电位差（Vci）。 响应于检测到的电位差，产生输出信号（Rci），指示在探头周围的多个方向上探测器与钻孔壁之间的距离。 该技术可以应用于地球地层的方位电阻率测量，用于校正探测器偏心的所述测量和/或钻孔部分的不规则形状。
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公开(公告)号：US07731421B2
公开(公告)日：2010-06-08
申请号：US11940367
申请日：2007-11-15
CPC分类号： E21B47/1005 , E21B36/04 , E21B47/042
摘要： A technique that is usable with a well includes changing the temperature of a local environment of a distributed temperature sensor, which is deployed in a region of the well and using the sensor to acquire measurements of a temperature versus depth profile. The region contains at least two different well fluid layers, and the technique includes determining the depth of a boundary of at least one of the well fluid layers based at least in part on a response of the temperature versus depth profile to the changing of the temperature.
摘要翻译： 可用于井的技术包括改变部署在井的区域中的分布式温度传感器的局部环境的温度并且使用传感器来获取温度对深度分布的测量。 该区域包含至少两个不同的井流体层，并且该技术包括至少部分地基于温度对深度分布对温度变化的响应来确定至少一个井流体层的边界的深度 。
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公开(公告)号：US5343153A
公开(公告)日：1994-08-30
申请号：US52
申请日：1993-01-04
摘要： The invention relates to a logging method and apparatus using passive azimuthal electrodes. The apparatus includes an array of azimuthal electrodes (M'az.sub.i) that are circumferentially spaced apart from one another on a body together with two annular guard electrodes (A2) disposed on either side of the array of azimuthal electrodes (M'az.sub.i). The guard electrodes (A2) emit currents. Two annular monitor electrodes (M3, M4) are associated with the annular guard electrodes (A2). The potential difference (.DELTA.Vaz.sub.i) between the interconnected monitor electrodes (M3, M4) and each of the azimuthal electrodes (M'az.sub.i) are detected. In response to the detected potential differences, output signals (R'az.sub.i) representative of the resistivity of the formations in a plurality of directions around the axis of the borehole are generated. The apparatus of the invention also relates to apparatus having two alternative modes of operation, one corresponding to a passive azimuthal electrode technique and the other corresponding to a technique in which currents (Iaz.sub.i) are emitted by the azimuthal electrodes.
摘要翻译： 本发明涉及使用被动方位电极的测井方法和装置。 该装置包括一个方位电极阵列（M'azi），它们与设置在方位电极阵列（M'azi）的任一侧上的两个环形保护电极（A2）一起在主体上彼此周向间隔开。 保护电极（A2）发射电流。 两个环形监视电极（M3，M4）与环形保护电极（A2）相关联。 检测互连的监视电极（M3，M4）和方位电极（M'azi）之间的电位差（DELTA Vazi）。 响应于检测到的电位差，产生表示围绕钻孔轴线的多个方向上的地层电阻率的输出信号（R'azi）。 本发明的装置还涉及具有两种备选操作模式的装置，一种对应于被动方位电极技术，另一种对应于电流（Iazi）由方位电极发射的技术。
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公开(公告)号：US07472594B1
公开(公告)日：2009-01-06
申请号：US11767576
申请日：2007-06-25
申请人： Dylan H. Davies
发明人： Dylan H. Davies
IPC分类号： G01F23/00
CPC分类号： G01K11/32 , E21B47/042 , E21B47/1005
摘要： A technique that is usable with a well includes disposing a distributed temperature sensor in a conduit that traverses a region of the well. The region contains at least two different well fluid layers. The technique includes circulating a fluid through the conduit and using the distributed temperature sensor to observe at least one temperature versus depth profile of the fluid. Based on the observation, the depth of a boundary of at least one of the well fluid layers is determined.
摘要翻译： 可用于井的技术包括将分布式温度传感器布置在穿过井的区域的导管中。 该区域包含至少两个不同的井流体层。 该技术包括使流体循环通过管道并且使用分布式温度传感器来观察流体的至少一个温度对深度分布。 基于该观察，确定至少一个井流体层的边界的深度。
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公开(公告)号：US20080317095A1
公开(公告)日：2008-12-25
申请号：US11940367
申请日：2007-11-15
IPC分类号： G01K3/00
CPC分类号： E21B47/1005 , E21B36/04 , E21B47/042
摘要： A technique that is usable with a well includes changing the temperature of a local environment of a distributed temperature sensor, which is deployed in a region of the well and using the sensor to acquire measurements of a temperature versus depth profile. The region contains at least two different well fluid layers, and the technique includes determining the depth of a boundary of at least one of the well fluid layers based at least in part on a response of the temperature versus depth profile to the changing of the temperature.
摘要翻译： 可用于井的技术包括改变部署在井的区域中的分布式温度传感器的局部环境的温度并且使用传感器来获取温度对深度分布的测量。 该区域包含至少两个不同的井流体层，并且该技术包括至少部分地基于温度对深度分布对温度变化的响应来确定至少一个井流体层的边界的深度 。
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公开(公告)号：US4857831A
公开(公告)日：1989-08-15
申请号：US947314
申请日：1986-12-29
申请人： Dylan H. Davies , Jiro Takeda
发明人： Dylan H. Davies , Jiro Takeda
CPC分类号： G01V11/005 , E21B47/00 , G01R27/02 , G01V3/24 , H03F2200/261
摘要： Apparatus and method for investigating a borehole casing. The preferred apparatus generally comprises: a housing which is connected to a cable; sets of electrodes, each set being axially spaced from another set, with the electrodes in each set being circumferentially spaced at an axial depth; a positioning device provided in the housing for bringing the electrodes into contact with the casing; a measuring circuit provided inside of the housing and electrically connected to the electrodes for measuring at least the potential difference of the casing between the electrode locations, wherein the potential difference information is amplified by the measuring circuit, and the amplified information is transmitted through the cable for processing; and a control circuit provided in the housing for controlling the operation of the positioning device and the measuring circuit. Preferably, a digitizing circuit is provided so that the amplified information is digitized before it is transmitted to the surface and processed.
摘要翻译： 钻孔套管调查装置及方法。 优选的装置通常包括：连接到电缆的外壳; 每组电极与另一组轴向间隔开，每组中的电极在轴向深度上周向间隔开; 定位装置，设置在所述壳体中，用于使所述电极与所述壳体接触; 设置在壳体的内部并电连接到电极的测量电路，用于至少测量电极位置之间的壳体的电位差，其中电位差信息由测量电路放大，放大的信息通过电缆传输 用于加工; 以及设置在壳体中用于控制定位装置和测量电路的操作的控制电路。 优选地，提供数字化电路，使得放大的信息在被传输到表面之前被数字化并被处理。
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公开(公告)号：US08128281B2
公开(公告)日：2012-03-06
申请号：US12768085
申请日：2010-04-27
CPC分类号： E21B47/1005 , E21B36/04 , E21B47/042
摘要： A technique that is usable with a well includes changing the temperature of a local environment of a distributed temperature sensor, which is deployed in a region of the well and using the sensor to acquire measurements of a temperature versus depth profile. The region contains at least two different well fluid layers, and the technique includes determining the depth of a boundary of at least one of the well fluid layers based at least in part on a response of the temperature versus depth profile to the changing of the temperature.
摘要翻译： 可用于井的技术包括改变部署在井的区域中的分布式温度传感器的局部环境的温度并且使用传感器来获取温度对深度分布的测量。 该区域包含至少两个不同的井液层，并且该技术包括至少部分地基于温度对深度分布对温度变化的响应来确定至少一个井流体层的边界的深度 。
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公开(公告)号：US20100238971A1
公开(公告)日：2010-09-23
申请号：US12768110
申请日：2010-04-27
IPC分类号： G01K13/00
CPC分类号： E21B47/1005 , E21B36/04 , E21B47/042
摘要： A technique that is usable with a well includes changing the temperature of a local environment of a distributed temperature sensor, which is deployed in a region of the well and using the sensor to acquire measurements of a temperature versus depth profile. The region contains at least two different well fluid layers, and the technique includes determining the depth of a boundary of at least one of the well fluid layers based at least in part on a response of the temperature versus depth profile to the changing of the temperature.
摘要翻译： 可用于井的技术包括改变部署在井的区域中的分布式温度传感器的局部环境的温度并且使用传感器来获取温度对深度分布的测量。 该区域包含至少两个不同的井流体层，并且该技术包括至少部分地基于温度对深度分布对温度变化的响应来确定至少一个井流体层的边界的深度 。
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