Method and apparatus for internal calibration in induction logging instruments
    1.
    发明授权
    Method and apparatus for internal calibration in induction logging instruments 有权
    感应测井仪器内部校准的方法和装置

    公开(公告)号:US07598741B2

    公开(公告)日:2009-10-06

    申请号:US11685271

    申请日:2007-03-13

    IPC分类号: G01V3/18 G01V3/28

    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。

    Apparatus accurately measuring properties of a formation
    2.
    发明授权
    Apparatus accurately measuring properties of a formation 失效
    设备准确地测量地层的性质

    公开(公告)号:US06734675B2

    公开(公告)日:2004-05-11

    申请号:US10262548

    申请日:2002-10-01

    IPC分类号: G01N310

    CPC分类号: G01V3/28

    摘要: A transverse induction logging tool having a transmitter and receiver for downhole sampling of formation properties, the tool having a symmetrical shielded split-coil transmitter coil and a bucking coil interposed between the split transmitter coils to reduce coupling of the transmitter time varying magnetic field into the receiver. The tool provides symmetrical shielding of the coils and grounding at either the transmitter or receiver end only to reduce coupling of induced currents into the received signal. The tool provides an insulator between receiver electronics and the conductive receiver housing having contact with conductive wellbore fluid, to reduce parasitic current flowing in a loop formed by the upper housing, feed through pipe, lower housing and wellbore fluid adjacent the probe housing or mandrel. An internal verification loop is provided to track changes in transmitter current in the real and quadrature component of the received data signal. A galvanic electrode is housed in the same mandrel with the induction logging receiver and transmitter.

    摘要翻译: 一种具有发射器和接收器的横向感应测井工具,用于对地层特性进行井下取样,该工具具有对称的屏蔽分离线圈发射器线圈和插入分离的发射器线圈之间的降压线圈,以减少发射机时变磁场的耦合 接收器。 该工具在发射机或接收机端提供线圈的对称屏蔽和接地,以减少感应电流与接收信号的耦合。 该工具在接收器电子设备和与导电井眼流体接触的导电接收器壳体之间提供绝缘体,以减少在由上壳体形成的环路中流动的寄生电流,通过管道,下壳体和邻近探针壳体或心轴的井孔流体供给。 提供内部验证循环以跟踪接收数据信号的实数和正交分量中发射机电流的变化。 电感电极与感应测井接收器和变送器一起安装在相同的心轴上。

    Method and apparatus for internal calibration in induction logging instruments
    3.
    发明授权
    Method and apparatus for internal calibration in induction logging instruments 有权
    感应测井仪器内部校准的方法和装置

    公开(公告)号:US07190169B2

    公开(公告)日:2007-03-13

    申请号:US10867620

    申请日:2004-06-15

    IPC分类号: G01V3/28

    CPC分类号: G01V3/28 G01V13/00

    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. In a exemplary embodiment of the present invention, 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. In one aspect of the invention a logging tool is provided comprising a verification winding for coupling a verification signal into the receiver coil.

    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。 在本发明的示例性实施例中,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。 在本发明的一个方面,提供测井工具,其包括用于将验证信号耦合到接收器线圈中的验证线圈。

    Method and apparatus for accurately measuring properties of a formation
    5.
    发明授权
    Method and apparatus for accurately measuring properties of a formation 失效
    精确测量地层特性的方法和装置

    公开(公告)号:US07199586B2

    公开(公告)日:2007-04-03

    申请号:US10841397

    申请日:2004-05-07

    IPC分类号: G01N3/10

    CPC分类号: G01V3/28

    摘要: A transverse induction logging tool having a transmitter and receiver for downhole sampling of formation properties, the tool having a symmetrical shielded split-coil transmitter coil and a bucking coil interposed between the split transmitter coils to reduce coupling of the transmitter time varying magnetic field into the receiver. The tool provides symmetrical shielding of the coils and grounding at either the transmitter or receiver end only to reduce coupling of induced currents into the received signal. The tool provides an insulator between receiver electronics and the conductive receiver housing having contact with conductive wellbore fluid, to reduce parasitic current flowing in a loop formed by the upper housing, feed through pipe, lower housing and wellbore fluid adjacent the probe housing or mandrel. An internal verification loop is provided to track changes in transmitter current in the real and quadrature component of the received data signal. A galvanic electrode is housed in the same mandrel with the induction logging receiver and transmitter.

    摘要翻译: 一种具有发射器和接收器的横向感应测井工具,用于对地层特性进行井下取样,该工具具有对称的屏蔽分离线圈发射器线圈和插入分离的发射器线圈之间的降压线圈,以减少发射机时变磁场的耦合 接收器。 该工具在发射机或接收机端提供线圈的对称屏蔽和接地,以减少感应电流与接收信号的耦合。 该工具在接收器电子设备和与导电井眼流体接触的导电接收器壳体之间提供绝缘体,以减少在由上壳体形成的环路中流动的寄生电流,通过管道,下壳体和邻近探针壳体或心轴的井孔流体供给。 提供内部验证循环以跟踪接收数据信号的实数和正交分量中发射机电流的变化。 电感电极与感应测井接收器和变送器一起安装在相同的心轴上。

    Method and apparatus for reducing the effects of parasitic and galvanic currents in a resistivity measuring tool
    6.
    发明授权
    Method and apparatus for reducing the effects of parasitic and galvanic currents in a resistivity measuring tool 失效
    用于减小电阻率测量工具中寄生电流和电流的影响的方法和装置

    公开(公告)号:US06586939B1

    公开(公告)日:2003-07-01

    申请号:US09471289

    申请日:1999-12-24

    IPC分类号: G01V310

    CPC分类号: G01V3/28

    摘要: A transverse induction logging tool having a transmitter and receiver for downhole sampling of formation properties, the tool having a symmetrical shielded split-coil transmitter coil and a bucking coil interposed between the split transmitter coils to reduce coupling of the transmitter time varying magnetic field into the receiver. The tool provides symmetrical shielding of the coils and grounding at either the transmitter or receiver end only to reduce coupling of induced currents into the received signal. The tool provides an insulator between receiver electronics and the conductive receiver housing having contact with conductive wellbore fluid, to reduce parasitic current flowing in a loop formed by the upper housing, feed through pipe, lower housing and wellbore fluid adjacent the probe housing or mandrel. An internal verification loop is provided to track changes in transmitter current in the real and quadrature component of the received data signal. A galvanic electrode is housed in the same mandrel with the induction logging receiver and transmitter.

    摘要翻译: 一种具有发射器和接收器的横向感应测井工具,用于对地层特性进行井下取样,该工具具有对称的屏蔽分离线圈发射器线圈和插入分离的发射器线圈之间的降压线圈,以减少发射机时变磁场的耦合 接收器。 该工具在发射机或接收机端提供线圈的对称屏蔽和接地,以减少感应电流与接收信号的耦合。 该工具在接收器电子设备和与导电井眼流体接触的导电接收器壳体之间提供绝缘体,以减少在由上壳体形成的环路中流动的寄生电流,通过管道,下壳体和邻近探针壳体或心轴的井孔流体供给。 提供内部验证循环以跟踪接收数据信号的实数和正交分量中发射机电流的变化。 电感电极与感应测井接收器和变送器一起安装在相同的心轴上。

    Method and apparatus for a multi-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells
    7.
    发明授权
    Method and apparatus for a multi-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells 有权
    用于水平,垂直和偏斜井的地质导向和地层电阻率数据解释的多分量感应仪测量系统的方法和装置

    公开(公告)号:US07268556B2

    公开(公告)日:2007-09-11

    申请号:US10824093

    申请日:2004-04-14

    IPC分类号: G01V3/18

    CPC分类号: G01V3/28

    摘要: An improved induction tool for formation resistivity evaluations. The tool provides electromagnetic transmitters and sensors suitable for transmitting and receiving magnetic fields in radial directions that are orthogonal to the tool's longitudinal axis with minimal susceptibility to errors associated with parasitic eddy currents induced in the metal components surrounding the transmitter and receiver coils.Various transmitter receiver combinations are provided to select sensitivity to a desired reservoir formation properties, for example, different orientations xy, xz, yz, 20-40, 20-90, and combinations, such as, Symmetric-symmetric; Asymmetric-symmetric; and Asymmetric-asymmetric. Measurements made with a multi-component logging instrument when used in a substantially horizontal, vertical or deviated borehole in earth formations are diagnostic of the direction of resistive beds relative to the position of the borehole.

    摘要翻译: 改进的地层电阻率评估感应工具。 该工具提供电磁发射器和传感器,适用于在与工具的纵向轴线正交的径向方向上发射和接收磁场,对与发射器和接收器线圈周围的金属部件中感应的寄生涡流有关的误差的影响最小。 提供各种发射器接收器组合以选择对期望的储层形成性质的灵敏度,例如不同取向xy,xz,yz,20-40,20-90以及诸如对称对称的组合; 不对称; 和非对称不对称。 使用多组分测井仪器在地层中基本上水平,垂直或偏斜的钻孔中进行的测量是电阻床相对于钻孔位置的方向的诊断。

    Nuclear magnetic resonance fluid characterization apparatus and method for using with electric wireline formation testing instruments
    9.
    再颁专利
    Nuclear magnetic resonance fluid characterization apparatus and method for using with electric wireline formation testing instruments 失效
    核磁共振流体表征装置及其与电缆形成测试仪器的使用方法

    公开(公告)号:USRE40167E1

    公开(公告)日:2008-03-25

    申请号:US10231412

    申请日:2002-08-29

    IPC分类号: G01V3/00 G01R33/20

    CPC分类号: G01N24/081 G01V3/32

    摘要: A method for characterizing a fluid sample withdrawn from an earth formation. The method includes performing nuclear magnetic resonant spin echo measurements on the fluid sample at a nuclear magnetic resonant frequency of carbon-13. Amplitudes of the spin echo measurements are summed. The summed measurements are spectrally analyzed. The fluid is characterized by determining whether aromatic hydrocarbons are present by measuring an amplitude of the spectrally analyzed spin echo measurements at about 130 part per million shift from the carbon-13 frequency. The fluid is also characterized by determining whether aliphatic hydrocarbons are present by measuring an amplitude of the spectrally analyzed spin echo measurements at about 30 parts per million frequency shift.

    摘要翻译: 用于表征从地层中取出的流体样品的方法。 该方法包括在碳-13的核磁共振频率下对流体样品进行核磁共振自旋回波测量。 自旋回波测量的幅度相加。 对光谱进行光谱分析。 流体的特征在于通过测量从碳-13频率开始的大约130百万分之一的频谱分析的自旋回波测量的幅度来确定芳香烃是否存在。 流体的特征还在于通过以每百万次频移大约30个百分点测量频谱分析的自旋回波测量的幅度来确定脂族烃是否存在。