APPARATUS AND SYSTEM FOR GEOSTEERING AND FORMATION EVALUATION UTILIZING IMPROVED ANTENNAS
    1.
    发明申请
    APPARATUS AND SYSTEM FOR GEOSTEERING AND FORMATION EVALUATION UTILIZING IMPROVED ANTENNAS 有权
    用于改善天线的地球物理和地层评估的装置和系统

    公开(公告)号:US20090301781A1

    公开(公告)日:2009-12-10

    申请号:US12135639

    申请日:2008-06-09

    IPC分类号: E21B49/00

    CPC分类号: E21B47/01 G01V3/30

    摘要: An apparatus for measuring one or more earth formation properties during applications including formation evaluation and geosteering applications is provided. The apparatus includes: an elongated body; at least one recessed portion on a periphery of the elongated body; an electrically conductive coil forming a closed loop, at least a portion of the coil extending through the at least one recessed portion; and a u-shaped magnetically permeable and non-conductive material disposed between the coil and the at least one recessed portion, the u-shaped material partially surrounding the coil in the at least one recessed portion. A system for measuring one or more properties of an earth formation is also provided.

    摘要翻译: 提供了一种用于在包括地层评估和地质导向应用的应用中测量一个或多个地层形成特性的装置。 该装置包括:细长体; 所述细长体的周边上的至少一个凹部; 形成闭环的导电线圈,所述线圈的至少一部分延伸穿过所述至少一个凹部; 以及设置在所述线圈和所述至少一个凹部之间的u形磁导和非导电材料,所述u形材料部分地围绕所述至少一个凹部中的所述线圈。 还提供了一种用于测量地层的一个或多个性质的系统。

    Apparatus and system for geosteering and formation evaluation utilizing improved antennas
    2.
    发明授权
    Apparatus and system for geosteering and formation evaluation utilizing improved antennas 有权
    利用改进天线进行地质导向和地层评估的装置和系统

    公开(公告)号:US08164339B2

    公开(公告)日:2012-04-24

    申请号:US12135639

    申请日:2008-06-09

    IPC分类号: G01V3/18 G01V3/20 G01V3/28

    CPC分类号: E21B47/01 G01V3/30

    摘要: An apparatus for measuring one or more earth formation properties during applications including formation evaluation and geosteering applications is provided. The apparatus includes: an elongated body; at least one recessed portion on a periphery of the elongated body; an electrically conductive coil forming a closed loop, at least a portion of the coil extending through the at least one recessed portion; and a u-shaped magnetically permeable and non-conductive material disposed between the coil and the at least one recessed portion, the u-shaped material partially surrounding the coil in the at least one recessed portion. A system for measuring one or more properties of an earth formation is also provided.

    摘要翻译: 提供了一种用于在包括地层评估和地质导向应用的应用中测量一个或多个地层形成特性的装置。 该装置包括:细长体; 所述细长体的周边上的至少一个凹部; 形成闭环的导电线圈,所述线圈的至少一部分延伸穿过所述至少一个凹部; 以及设置在所述线圈和所述至少一个凹部之间的u形磁导和非导电材料,所述u形材料部分地围绕所述至少一个凹部中的所述线圈。 还提供了一种用于测量地层的一个或多个性质的系统。

    Multi-component resistivity logging tool with multiple antennas using common antenna grooves
    3.
    发明授权
    Multi-component resistivity logging tool with multiple antennas using common antenna grooves 有权
    具有多个天线的多分量电阻率测井仪使用公共天线槽

    公开(公告)号:US07839149B2

    公开(公告)日:2010-11-23

    申请号:US12350099

    申请日:2009-01-07

    IPC分类号: G01V3/10

    CPC分类号: G01V3/28

    摘要: The disclosure provides a resistivity tool for use in a wellbore, wherein at least two orthogonal antennas are located at the same or substantially the same location of the tool. A single set of vertically aligned grooves is provided for the at least two orthogonal antennas. Each antenna may be configured to operate as a transmitter or receiver. A tool with collocated antennas may be used to provide azimuthally sensitive measurements even if the tool is non-rotating.

    摘要翻译: 本公开提供了一种用于井眼的电阻率工具,其中至少两个正交天线位于工具的相同或基本相同的位置。 为至少两个正交天线提供单组垂直排列的凹槽。 每个天线可以被配置为作为发射机或接收机工作。 即使工具不旋转,也可以使用具有并置天线的工具来提供方位灵敏度测量。

    Method for Building Multi-Component Electromagnetic Antennas
    4.
    发明申请
    Method for Building Multi-Component Electromagnetic Antennas 有权
    建立多分量电磁天线的方法

    公开(公告)号:US20090179647A1

    公开(公告)日:2009-07-16

    申请号:US12350099

    申请日:2009-01-07

    IPC分类号: G01V3/28

    CPC分类号: G01V3/28

    摘要: The disclosure provides a resistivity tool for use in a wellbore, wherein at least two orthogonal antennas are located at the same or substantially the same location of the tool. A single set of vertically aligned grooves is provided for the at least two orthogonal antennas. Each antenna may be configured to operate as a transmitter or receiver. A tool with collocated antennas may be used to provide azimuthally sensitive measurements even if the tool is non-rotating.

    摘要翻译: 本公开提供了一种用于井眼的电阻率工具,其中至少两个正交天线位于工具的相同或基本相同的位置。 为至少两个正交天线提供单组垂直排列的凹槽。 每个天线可以被配置为作为发射机或接收机工作。 即使工具不旋转,也可以使用具有并置天线的工具来提供方位灵敏度测量。

    USE OF AUTOTRANSFORMER-LIKE ANTENNAS FOR DOWNHOLE APPLICATIONS
    5.
    发明申请
    USE OF AUTOTRANSFORMER-LIKE ANTENNAS FOR DOWNHOLE APPLICATIONS 有权
    自动变幅器天线的使用用于井下应用

    公开(公告)号:US20120051189A1

    公开(公告)日:2012-03-01

    申请号:US13035098

    申请日:2011-02-25

    IPC分类号: G01V1/20

    CPC分类号: G01V3/12 G01V3/28 G01V3/30

    摘要: An apparatus for estimating a property of an earth formation penetrated by a borehole, apparatus including: a carrier configured to be conveyed through the borehole; a transducer disposed at the carrier and configured to transmit and/or receive electromagnetic energy into and/or from the earth formation to estimate the property; wherein the transducer includes a plurality of inductively coupled elements in a series, each element configured to transmit and/or receive electromagnetic energy and at least a first connection to a first element in the plurality and a second connection to a second element in the plurality with at least one of the first element and the second element being disposed between end transducer elements in the series.

    摘要翻译: 一种用于估计由钻孔渗透的地层的性质的装置,包括:被构造成通过钻孔传送的载体; 设置在所述载体处并被配置为向所述地层中的和/或从所述地层发射和/或接收电磁能以估计所述性质的换能器; 其中所述换能器包括多个串联的感应耦合元件,每个元件被配置为传输和/或接收电磁能量,并且至少第一连接到所述多个中的第一元件,以及与所述多个元件中的第二元件的第二连接, 第一元件和第二元件中的至少一个设置在串联的端部换能器元件之间。

    FREQUENCY FILTERING AND ADJUSTMENT OF ELECTROMAGNETICALLY RECEIVED SIGNALS FROM ANTENNAS
    6.
    发明申请
    FREQUENCY FILTERING AND ADJUSTMENT OF ELECTROMAGNETICALLY RECEIVED SIGNALS FROM ANTENNAS 有权
    频率滤波和调整从天线接收的电磁信号

    公开(公告)号:US20110068796A1

    公开(公告)日:2011-03-24

    申请号:US12883344

    申请日:2010-09-16

    IPC分类号: G01V3/08

    CPC分类号: G01V3/30

    摘要: An apparatus for estimating a property of an earth formation penetrated by a borehole, the apparatus having: a carrier configured to be conveyed through the borehole; a transmitter disposed at the carrier and configured to transmit electromagnetic energy at a first frequency into the formation; a first antenna disposed at the carrier and configured to receive electromagnetic signals from the formation as a result of the transmitted electromagnetic energy interacting with the formation; and an active filter coupled to the antenna and configured to filter electromagnetic signals received by the antenna to let the electromagnetic signals at the first frequency pass for processing to estimate the property.

    摘要翻译: 一种用于估计由钻孔渗透的地层的性质的装置,该装置具有:构造成通过钻孔传送的载体; 设置在所述载体处并被配置为以第一频率将电磁能量传输到所述地层中的发射器; 设置在所述载体处并且被配置为由于所传输的电磁能量与所述地层相互作用而从所述地层接收电磁信号的第一天线; 以及有源滤波器,其耦合到所述天线并且被配置为对由所述天线接收的电磁信号进行滤波,以使所述第一频率处的电磁信号通过以进行处理以估计所述性质。

    Use of autotransformer-like antennas for downhole applications
    7.
    发明授权
    Use of autotransformer-like antennas for downhole applications 有权
    使用自耦变压器式天线进行井下应用

    公开(公告)号:US08847600B2

    公开(公告)日:2014-09-30

    申请号:US13035098

    申请日:2011-02-25

    CPC分类号: G01V3/12 G01V3/28 G01V3/30

    摘要: An apparatus for estimating a property of an earth formation penetrated by a borehole, apparatus including: a carrier configured to be conveyed through the borehole; a transducer disposed at the carrier and configured to transmit and/or receive electromagnetic energy into and/or from the earth formation to estimate the property; wherein the transducer includes a plurality of inductively coupled elements in a series, each element configured to transmit and/or receive electromagnetic energy and at least a first connection to a first element in the plurality and a second connection to a second element in the plurality with at least one of the first element and the second element being disposed between end transducer elements in the series.

    摘要翻译: 一种用于估计由钻孔渗透的地层的性质的装置,包括:被构造成通过钻孔传送的载体; 设置在所述载体处并被配置为向所述地层中的和/或从所述地层发射和/或接收电磁能以估计所述性质的换能器; 其中所述换能器包括多个串联的感应耦合元件,每个元件被配置为传输和/或接收电磁能量,并且至少第一连接到所述多个中的第一元件,以及与所述多个元件中的第二元件的第二连接, 第一元件和第二元件中的至少一个设置在串联的端部换能器元件之间。

    Frequency filtering and adjustment of electromagnetically received signals from antennas
    8.
    发明授权
    Frequency filtering and adjustment of electromagnetically received signals from antennas 有权
    对天线电磁接收信号进行频率滤波和调整

    公开(公告)号:US08829907B2

    公开(公告)日:2014-09-09

    申请号:US12883344

    申请日:2010-09-16

    IPC分类号: G01V3/00 G01V3/30

    CPC分类号: G01V3/30

    摘要: An apparatus for estimating a property of an earth formation penetrated by a borehole, the apparatus having: a carrier configured to be conveyed through the borehole; a transmitter disposed at the carrier and configured to transmit electromagnetic energy at a first frequency into the formation; a first antenna disposed at the carrier and configured to receive electromagnetic signals from the formation as a result of the transmitted electromagnetic energy interacting with the formation; and an active filter coupled to the antenna and configured to filter electromagnetic signals received by the antenna to let the electromagnetic signals at the first frequency pass for processing to estimate the property.

    摘要翻译: 一种用于估计由钻孔渗透的地层的性质的装置,该装置具有:构造成通过钻孔传送的载体; 设置在所述载体处并被配置为以第一频率将电磁能量传输到所述地层中的发射器; 设置在所述载体处并且被配置为由于所传输的电磁能量与所述地层相互作用而从所述地层接收电磁信号的第一天线; 以及有源滤波器,其耦合到所述天线并且被配置为对由所述天线接收的电磁信号进行滤波,以使所述第一频率处的电磁信号通过以进行处理以估计所述性质。

    METHOD AND APPARATUS FOR CORRECTING TEMPERATURE EFFECTS FOR AZIMUTHAL DIRECTIONAL RESISTIVITY TOOLS
    9.
    发明申请
    METHOD AND APPARATUS FOR CORRECTING TEMPERATURE EFFECTS FOR AZIMUTHAL DIRECTIONAL RESISTIVITY TOOLS 审中-公开
    用于校正AZIMUTHAL方向电阻率工具的温度效应的方法和装置

    公开(公告)号:US20130035862A1

    公开(公告)日:2013-02-07

    申请号:US13197229

    申请日:2011-08-03

    IPC分类号: G01V3/26 G06F19/00

    CPC分类号: G01V3/28

    摘要: An apparatus and method for estimating a resistivity property of an earth formation involving electric current induced in an earth formation. The method may include reducing an error in a voltage received by a receiver coil due to excitation of a transmitter coil due to temperature effects. The voltage may include amplitude and/or phase errors. The method may modify the measured voltage by multiplying/dividing the voltage by a reduction factor. The reduction factor may be determined using polynomic curve fitting. The apparatus may be configured to perform the method. The apparatus may include at least one transmitter coil, at least one receiver coil, and at least one processes configured to perform the error reduction.

    摘要翻译: 一种用于估计涉及在地层中引起的电流的地层的电阻率特性的装置和方法。 该方法可以包括减少由于温度影响而由于发射器线圈的激励而导致的接收器线圈所接收的电压的误差。 电压可能包括幅度和/或相位误差。 该方法可以通过将电压乘以/除以减小因子来修改测量的电压。 可以使用多项式曲线拟合来确定缩小因子。 该装置可以被配置为执行该方法。 该装置可以包括至少一个发射器线圈,至少一个接收器线圈和被配置为执行误差减小的至少一个进程。

    Remotely located tuning circuits for multi-frequency, multi-puropse induction antennae in downhole tools
    10.
    发明申请
    Remotely located tuning circuits for multi-frequency, multi-puropse induction antennae in downhole tools 审中-公开
    位于井下工具中的多频多点感应天线的远程调谐电路

    公开(公告)号:US20100283468A1

    公开(公告)日:2010-11-11

    申请号:US12215434

    申请日:2008-06-27

    IPC分类号: G01V3/12 H01Q7/00

    CPC分类号: G01V3/28

    摘要: A unified circuit without using a relay is proposed to resonate an antenna at more than two frequencies. The use of such analog IC switches are common place for transceiver applications in high RF frequencies (500 MHz and above). However, the use of selectively tuned antennas has for the most part been accomplished by the use of latching relays or fixed value components. The IC switch allows for not only the functionality of a single antenna to be either a transmitter and/or a receiver, but also allows, by adding additional switches to select any number of frequencies to resonate the antenna. This frequency resonation could be at fixed frequency points or sweep in either linear or logarithmic steps. The component selection of capacitors for either method would be controlled by a DSP or other microcontroller device. In one embodiment, an antenna for a downhole measurement tool is provided with a tuning circuit couple by a transformer to at least one antenna. The tuning circuit is disposed entirely within and protected by the hollow body of the tool and selectively tunes the antenna to at least three discrete frequencies. Advantageously, no structural modification is made on the outer surface of the tool to accommodate the tuning circuit. In one embodiment, a switching circuit enables a single antenna to function as both a transmitter and a receiver.

    摘要翻译: 提出一种不使用继电器的统一电路,以便在两个以上的频率下谐振天线。 使用这种模拟IC开关是在高RF频率(500MHz及以上)中的收发器应用的常见之处。 然而,使用选择性调谐天线大部分是通过使用闭锁继电器或固定值组件来实现的。 IC开关不仅可以将单个天线的功能作为发射机和/或接收机,而且还可以通过添加附加开关来选择任意数量的频率来谐振天线。 该频率谐振可以在固定频率点或以线性或对数步长扫描。 任何一种方法的电容器的组件选择将由DSP或其他微控制器设备控制。 在一个实施例中,用于井下测量工具的天线设置有由变压器耦合到至少一个天线的调谐电路。 调谐电路完全设置在工具的中空体内并由其保护,并且选择性地将天线调谐到至少三个离散频率。 有利的是,在工具的外表面上不进行结构修改以容纳调谐电路。 在一个实施例中,开关电路使得单个天线能够用作发射机和接收机两者。