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公开(公告)号：US20150330216A1
公开(公告)日：2015-11-19
申请号：US14280037
申请日：2014-05-16
CPC分类号： E21B47/122 , E21B47/011 , E21B49/00 , G01V3/12 , G01V3/26 , G01V3/28 , G01V3/30
摘要： An apparatus for estimating a property of an earth formation includes: a carrier configured to be conveyed through a borehole penetrating an earth formation; a first fractal-shaped antenna element disposed on the carrier and configured to at least one of transmit electromagnetic energy into the formation and receive electromagnetic energy from the formation; and a second fractal-shaped antenna element electrically connected to the first fractal-shaped antenna element at a connection and configured to at least one of transmit electromagnetic energy into the formation and receive electromagnetic energy from the formation; wherein the second fractal-shaped antenna element is substantially a mirror image of the first fractal antenna element with respect to a reflection about the connection.
摘要翻译： 用于估计地球物理性质的装置包括：构造成通过穿透地层的钻孔传送的载体; 第一分形状天线元件，其设置在所述载体上并且被配置为将所述电磁能量发射到所述地层中并从所述地层接收电磁能中的至少一个; 以及第二分形状天线元件，其在连接处电连接到所述第一分形天线元件，并且被配置为向所述地层中传输电磁能量中的至少一个并且接收来自所述地层的电磁能量; 其中所述第二分形天线元件相对于围绕所述连接的反射基本上是所述第一分形天线元件的镜像。
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公开(公告)号：US08942941B2
公开(公告)日：2015-01-27
申请号：US12899264
申请日：2010-10-06
CPC分类号： G01V3/26
摘要： An apparatus for modifying an output signal indicative of a downhole parameter that may include a carrier conveyable in a wellbore; a negative error compensator; and an output signal device. The negative error compensator may be configured to modify the output of the device to increase or decrease a characteristic of the output signal from the output signal device. Also, a method for modifying an output signal indicative of a downhole parameter that may include modifying a characteristic of an output signal produced by a output signal device in a wellbore using a negative error compensator.
摘要翻译： 一种用于修改指示井下参数的输出信号的装置，所述井下参数可以包括可在井眼中传送的载体; 负误差补偿器; 和输出信号装置。 负误差补偿器可以被配置为修改设备的输出以增加或减少来自输出信号装置的输出信号的特性。 另外，一种用于修改表示井下参数的输出信号的方法，该方法可以包括使用负误差补偿器来修改由井眼中的输出信号装置产生的输出信号的特性。
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3.发明授权公开(公告)号：US08803527B2
公开(公告)日：2014-08-12
申请号：US13417892
申请日：2012-03-12
IPC分类号： G01V3/00
CPC分类号： G01V3/28
摘要： A multicomponent induction logging tool uses a nonconducting mandrel. A central conducting member including wires that electrically connect at least one of the antennas to another of the antennas. Electrodes disposed about the transmitter antenna form a conductive path through a borehole fluid to the central conducting member.
摘要翻译： 多组分感应测井仪使用不导电心轴。 一种中心导电构件，包括将至少一个天线电连接到另一个天线的导线。 围绕发射器天线布置的电极形成穿过井眼流体到中心导电构件的导电路径。
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公开(公告)号：US20130027045A1
公开(公告)日：2013-01-31
申请号：US13359581
申请日：2012-01-27
IPC分类号： G01V3/02
CPC分类号： G01V3/24 , E21B47/102
摘要： Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole. The apparatus includes a carrier configured to be conveyed through the borehole and having a first transmitter electrode configured to inject electrical current into the formation and a first measurement electrode configured to receive electrical current for measurement due to the current injection in order to estimate the property of the earth formation. A controller is configured to determine a phase difference between injected electrical current and received electrical current. A first bucker amplifier is coupled to the first measurement electrode and configured to apply a voltage to the first measurement electrode based on the determined phase difference in order for a phase of current received by the first measurement electrode to be substantially in phase with the current injected by the first transmitter electrode.
摘要翻译： 公开了一种用于估计钻孔穿透的地层的性质的装置。 该装置包括：载体，被构造成通过钻孔传送，并具有配置成将电流注入到地层中的第一发射器电极;以及第一测量电极，其被配置为接收由于电流注入而进行测量的电流，以便估计 地球形成。 控制器被配置为确定注入的电流和接收的电流之间的相位差。 第一压差放大器耦合到第一测量电极，并且被配置为基于所确定的相位差向第一测量电极施加电压，以使由第一测量电极接收的电流的相位与注入的电流基本上同相 由第一发射机电极。
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公开(公告)号：US08237446B2
公开(公告)日：2012-08-07
申请号：US12199278
申请日：2008-08-27
IPC分类号： G01R3/00
CPC分类号： G01V3/20
摘要： An imaging tool made includes a pad whose curvature is chosen based on the expected range of borehole radius and the pad size so as to maintain the maximum standoff below a desired value. The curvature may be adjusted using fasteners.
摘要翻译： 所制成的成像工具包括其基于钻孔半径的预期范围和垫尺寸来选择曲率的垫，以便将最大间隔保持在期望值以下。 可以使用紧固件来调节曲率。
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6.发明授权公开(公告)号：US07932723B2
公开(公告)日：2011-04-26
申请号：US12185220
申请日：2008-08-04
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： Calibration of the arrays of a multicomponent induction logging tool is achieved by positioning the tool horizontally above ground. The upper and lower housings of the tool are connected by a borehole conductivity simulator which as a resistance comparable to that of a borehole. Axial and radial positioning of the transmitter coils is done by monitoring outputs at receiver coils to achieve a minimum.
摘要翻译： 通过将工具水平放置在地面上来实现多组件感应测井工具阵列的校准。 工具的上壳体和下壳体通过钻孔电导率模拟器连接，该模拟器作为与钻孔相当的电阻。 发射器线圈的轴向和径向定位是通过监视接收器线圈处的输出来实现的。
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公开(公告)号：US20110001481A1
公开(公告)日：2011-01-06
申请号：US12824551
申请日：2010-06-28
IPC分类号： G01V3/18
CPC分类号： G01V3/28
摘要： An apparatus, method and computer-readable medium are provided for estimating a resistivity property of an earth formation. A logging tool includes a first antenna arrangement and a second antenna arrangement of the logging tool; and at least one device for maintaining the first antenna arrangement and the second antenna arrangement in proximity to a wall of the borehole. The first antenna arrangement and the second antenna arrangement may be at substantially the same axial location on the logging tool. Alternately, the first antenna arrangement and the second antenna arrangement may be at different axial positions on the logging tool. Extendible arms of the logging tool are configured to extend one or more of the first antenna arrangement and the second antenna arrangement against a face of the borehole.
摘要翻译： 提供了一种用于估计地层的电阻率特性的装置，方法和计算机可读介质。 测井工具包括测井工具的第一天线装置和第二天线装置; 以及至少一个用于将第一天线装置和第二天线装置维持在靠近钻孔壁的装置。 第一天线布置和第二天线布置可以在测井工具上处于基本相同的轴向位置。 或者，第一天线布置和第二天线布置可以在测井工具上处于不同的轴向位置。 记录工具的可扩展臂被配置为将第一天线装置和第二天线装置中的一个或多个抵靠在钻孔的表面上。
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公开(公告)号：US07665544B2
公开(公告)日：2010-02-23
申请号：US11567092
申请日：2006-12-05
申请人： Stanislav W. Forgang , Randy Gold
发明人： Stanislav W. Forgang , Randy Gold
IPC分类号： G01V3/00
CPC分类号： G01V3/20
摘要： Measurements are made using a plurality of measure electrodes on a pad of a logging tool. The bias and gain of the measurements prior to A/D conversion are altered using measurements made by an additional electrode that is ahead of the measure electrodes.
摘要翻译： 使用测井工具的焊盘上的多个测量电极进行测量。 在A / D转换之前的测量的偏置和增益使用在测量电极之前的附加电极进行的测量来改变。
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9.发明授权公开(公告)号：US07598741B2
公开(公告)日：2009-10-06
申请号：US11685271
申请日：2007-03-13
CPC分类号： G01V3/28
摘要： The present invention improves measurement of the formation induction response in the presence of the primary magnetic field generated by a logging tool's transmitter. A structure is provided having a new combination of electrical and mechanical design features which provide logging tool for internal calibration and checking of antenna performance and characteristics before during and after well logging operations.
摘要翻译： 本发明在由测井工具的发射器产生的初级磁场存在的情况下改进了地层感应响应的测量。 提供了具有电气和机械设计特征的新组合的结构，其提供用于内部校准的测井工具以及在测井操作期间和之后检查天线性能和特性。
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10.发明申请Correction of Multi-Component Measurements For Tool Eccentricity in Deviated Wells 有权校正偏心井中工具偏心度的多组分测量公开(公告)号：US20080030196A1
公开(公告)日：2008-02-07
申请号：US11830402
申请日：2007-07-30
申请人： Alexandre N. Bespalov , Gulamabbas Merchant , Cynthia Dong Xue , Luis M. Pelegri , Michael B. Rabinovich , Stephen V. Painchaud , Bill H. Corley , Stanislav W. Forgang , Randy Gold
发明人： Alexandre N. Bespalov , Gulamabbas Merchant , Cynthia Dong Xue , Luis M. Pelegri , Michael B. Rabinovich , Stephen V. Painchaud , Bill H. Corley , Stanislav W. Forgang , Randy Gold
CPC分类号： G01V3/28
摘要： Measurements made by a multi-component induction logging tool are corrected for tool eccentricity in a deviated borehole. The eccentricity angle is determined from single frequency skin-effect corrected data and is then used to correct multifrequency data. Multifrequency focusing is then applied to the corrected multifrequency data. An inversion is then used to recover formation resistivity and relative dip and azimuth of the borehole. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
摘要翻译： 通过多部件感应测井仪进行的测量在偏心钻孔中校正了工具偏心率。 偏心角由单频皮肤效应校正数据确定，然后用于校正多频数据。 然后将多频聚焦应用于校正的多频数据。 然后使用反演来恢复井眼的地层电阻率和相对倾角和方位角。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）。
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