METHOD AND APPARATUS FOR CORRECTING TEMPERATURE EFFECTS FOR AZIMUTHAL DIRECTIONAL RESISTIVITY TOOLS
    11.
    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

    CPC classification number: G01V3/28

    Abstract: 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.

    Abstract translation: 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。

    Multipole antennae for logging-while-drilling resistivity measurements
    12.
    发明授权
    Multipole antennae for logging-while-drilling resistivity measurements 有权
    多极天线用于测井同时钻井电阻率测量

    公开(公告)号:US07742008B2

    公开(公告)日:2010-06-22

    申请号:US11877976

    申请日:2007-10-24

    CPC classification number: H01Q1/04 Y10T29/49016

    Abstract: A multipole antenna for conducting logging-while-drilling (LWD), includes a wire for one of producing and receiving an electromagnetic field, the wire having at least one winding for providing a magnetic moment in a first portion of the antenna that is opposite to the magnetic moment of a second portion of the antenna. A method for constructing the multipole antenna is provided. A LWD tool making use of the antenna is also provided.

    Abstract translation: 用于进行钻井同步的多极天线(LWD)包括用于产生和接收电磁场的导线,所述导线具有至少一个绕组,用于在天线的第一部分中提供磁矩,所述第一部分与 天线的第二部分的磁矩。 提供了一种构造多极天线的方法。 还提供了利用天线的LWD工具。

    RESISTIVITY TOOLS WITH COLLOCATED ANTENNAS
    13.
    发明申请
    RESISTIVITY TOOLS WITH COLLOCATED ANTENNAS 有权
    具有聚光天线的电阻工具

    公开(公告)号:US20080074336A1

    公开(公告)日:2008-03-27

    申请号:US11858717

    申请日:2007-09-20

    CPC classification number: H01Q1/04 G01V3/28 H01Q7/06 H01Q25/00

    Abstract: The disclosure provides a resistivity tool for use in a wellbore, wherein at least two antennas are located at the same or substantially the same location of the tool. Each antenna may be configured to operate as a transmitter or receiver.

    Abstract translation: 本公开提供了一种用于井筒的电阻率工具,其中至少两个天线位于工具的相同或基本相同的位置。 每个天线可以被配置为作为发射机或接收机工作。

    Apparatus and method for azimuthal MWD resistivity imaging at multiple depths of investigation
    14.
    发明授权
    Apparatus and method for azimuthal MWD resistivity imaging at multiple depths of investigation 有权
    在多个深度的方位角MWD电阻率成像的装置和方法

    公开(公告)号:US07723991B2

    公开(公告)日:2010-05-25

    申请号:US11865844

    申请日:2007-10-02

    CPC classification number: G01V3/28

    Abstract: A combination of a shallow-reading and a deep-reading, azimuthally sensitive, multiple propagation devices is used for providing depth images the earth formation with different depth of investigation. 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.

    Abstract translation: 浅读取和深度读数,方位角敏感的多重传播设备的组合被用于为深度图像提供具有不同深度调查深度的地层。 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。

    APPARATUS AND SYSTEM FOR GEOSTEERING AND FORMATION EVALUATION UTILIZING IMPROVED ANTENNAS
    15.
    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

    CPC classification number: E21B47/01 G01V3/30

    Abstract: 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.

    Abstract translation: 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。

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