Formation properties from conductivity tensor

    公开(公告)号:US10371852B2

    公开(公告)日:2019-08-06

    申请号:US13333354

    申请日:2011-12-21

    IPC分类号: G01V3/30 G01V3/38

    摘要: A logging tool having a plurality of spatially separated antennas is provided and used to make propagation-style measurements in a formation. Tensors are formed using the propagation-style measurements and one or more quantities are computed using the tensors. A formation evaluation is performed using the computed quantities. The formation evaluation determines a formation property or parameter such as horizontal resistivity, vertical resistivity, relative dip, azimuthal dip, bed boundary location, or bed thickness. The computed quantities may include compensated phase shift resistivity, compensated attenuation resistivity, symmetrized phase shift resistivity, symmetrized attenuation resistivity, anti-symmetrized phase shift resistivity, and anti-symmetrized attenuation resistivity. The measurements may be corrected for antenna gain errors and an air calibration may be performed. A zero-dimension inversion may be performed, while drilling, and the determined horizontal resistivity, vertical resistivity, relative dip, and/or azimuthal dip information may be sent to an uphole processor in real-time.

    Wireless two-way communication for downhole tools
    12.
    发明授权
    Wireless two-way communication for downhole tools 有权
    无线双向通信用于井下工具

    公开(公告)号:US09091153B2

    公开(公告)日:2015-07-28

    申请号:US13527102

    申请日:2012-06-19

    IPC分类号: E21B47/12

    摘要: Systems, methods, and devices for two-way communication with a downhole tool string are provided. In one example, a method may include placing a downhole tool string into a pressure riser of a well while at least one component of the downhole tool string is not activated. Thereafter, a wireless control signal may be issued through the pressure riser to the downhole tool to cause the downhole tool string to activate the component. The wireless control signal may involve an acoustic signal, an optical signal, and/or an electromagnetic signal such as electrical dipole coupling or magnetic dipole coupling.

    摘要翻译: 提供了用于与井下工具串进行双向通信的系统,方法和设备。 在一个示例中,方法可以包括将井下工具串放置在井的压力提升器中,而井下工具串的至少一个部件未被激活。 此后,可以通过压力提升器向井下工具发出无线控制信号,以使井下工具串激活部件。 无线控制信号可以包括声信号,光信号和/或诸如电偶极耦合或磁偶极耦合的电磁信号。

    Wireless Two-Way Communication For Downhole Tools
    13.
    发明申请
    Wireless Two-Way Communication For Downhole Tools 有权
    无线双向通信用于井下工具

    公开(公告)号:US20130168081A1

    公开(公告)日:2013-07-04

    申请号:US13527102

    申请日:2012-06-19

    IPC分类号: E21B47/12

    摘要: Systems, methods, and devices for two-way communication with a downhole tool string are provided. In one example, a method may include placing a downhole tool string into a pressure riser of a well while at least one component of the downhole tool string is not activated. Thereafter, a wireless control signal may be issued through the pressure riser to the downhole tool to cause the downhole tool string to activate the component. The wireless control signal may involve an acoustic signal, an optical signal, and/or an electromagnetic signal such as electrical dipole coupling or magnetic dipole coupling.

    摘要翻译: 提供了用于与井下工具串进行双向通信的系统,方法和设备。 在一个示例中,方法可以包括将井下工具串放置在井的压力提升器中,而井下工具串的至少一个部件未被激活。 此后,可以通过压力提升器向井下工具发出无线控制信号,以使井下工具串激活部件。 无线控制信号可以包括声信号,光信号和/或诸如电偶极耦合或磁偶极耦合的电磁信号。

    DIRECTIONAL RESISTIVITY MEASUREMENT FOR WELL PLACEMENT AND FORMATION EVALUATION
    14.
    发明申请
    DIRECTIONAL RESISTIVITY MEASUREMENT FOR WELL PLACEMENT AND FORMATION EVALUATION 有权
    方向电阻测量,用于井架和地层评估

    公开(公告)号:US20110238312A1

    公开(公告)日:2011-09-29

    申请号:US13030780

    申请日:2011-02-18

    IPC分类号: G06F19/00 G01V3/08

    CPC分类号: G01V3/22 G01V1/52 G01V3/30

    摘要: The present disclosure relates to a method to determine a formation property of a subsurface formation. A downhole logging tool having two or more antennas, at least two of the antennas having a transversely-sensitive element and an axially-sensitive element is provided. Azimuthally-sensitive measurements are obtained using the antennas of the downhole logging tool. The measurements are fitted to a Fourier series having Fourier coefficients that include channel gains, if any. A DC component, a first harmonic component, and a second harmonic component are determined from the Fourier series, a measurement type is determined using the DC component, the first harmonic component, and/or the second harmonic component, and the formation property of the subsurface formation is determined using the determined measurement type.

    摘要翻译: 本公开涉及确定地下地层的地层特性的方法。 一种具有两个或多个天线的井下测井工具,其中至少两个天线具有横向敏感元件和轴向敏感元件。 使用井下测井工具的天线获得方位角敏感测量。 这些测量值适用于傅立叶级数,其傅立叶系数包括通道增益(如果有的话)。 从傅里叶级数确定DC分量,一次谐波分量和二次谐波分量,使用DC分量,一次谐波分量和/或二次谐波分量来确定测量类型,并且确定 使用确定的测量类型确定地下地层。

    Directional resistivity measurement for well placement and formation evaluation
    15.
    发明授权
    Directional resistivity measurement for well placement and formation evaluation 有权
    井位置和地层评估方向电阻率测量

    公开(公告)号:US09134449B2

    公开(公告)日:2015-09-15

    申请号:US13030780

    申请日:2011-02-18

    CPC分类号: G01V3/22 G01V1/52 G01V3/30

    摘要: The present disclosure relates to a method to determine a formation property of a subsurface formation. A downhole logging tool having two or more antennas, at least two of the antennas having a transversely-sensitive element and an axially-sensitive element is provided. Azimuthally-sensitive measurements are obtained using the antennas of the downhole logging tool. The measurements are fitted to a Fourier series having Fourier coefficients that include channel gains, if any. A DC component, a first harmonic component, and a second harmonic component are determined from the Fourier series, a measurement type is determined using the DC component, the first harmonic component, and/or the second harmonic component, and the formation property of the subsurface formation is determined using the determined measurement type.

    摘要翻译: 本公开涉及确定地下地层的地层特性的方法。 一种具有两个或多个天线的井下测井工具,其中至少两个天线具有横向敏感元件和轴向敏感元件。 使用井下测井工具的天线获得方位角敏感测量。 这些测量值适用于傅立叶级数,其傅立叶系数包括通道增益(如果有的话)。 从傅里叶级数确定DC分量,一次谐波分量和二次谐波分量,使用DC分量,一次谐波分量和/或二次谐波分量来确定测量类型,并且确定 使用确定的测量类型确定地下地层。

    LOGGING TOOL WITH ANTENNAS HAVING EQUAL TILT ANGLES
    16.
    发明申请
    LOGGING TOOL WITH ANTENNAS HAVING EQUAL TILT ANGLES 审中-公开
    具有等倾斜角度的天线的记录工具

    公开(公告)号:US20110291855A1

    公开(公告)日:2011-12-01

    申请号:US13122122

    申请日:2009-08-25

    IPC分类号: G01V3/00

    CPC分类号: G01V3/30

    摘要: The present disclosure relates to a downhole logging tool that includes two or more tilted antennas having equal tilt angles mounted in or on the tool body. The downhole logging tool may be, for example, a wireline or while-drilling tool, and it may be an induction or propagation tool. Various symmetrized and anti-symmetrized responses may be computed and used to infer formation properties and drilling parameters.

    摘要翻译: 本公开涉及一种井下测井工具,其包括安装在工具主体内或上的具有相等倾斜角的两个或多个倾斜天线。 井下测井工具可以是例如有线或同时钻孔的工具,并且其可以是感应或传播工具。 可以计算各种对称和反对称化的响应,并用于推断地层性质和钻井参数。

    Insulated sleeve with conductive electrodes to reduce borehole effects for an induction tool
    17.
    发明授权
    Insulated sleeve with conductive electrodes to reduce borehole effects for an induction tool 有权
    绝缘套管带有导电电极,以减少感应工具的钻孔效应

    公开(公告)号:US07023212B2

    公开(公告)日:2006-04-04

    申请号:US11030668

    申请日:2004-12-31

    IPC分类号: G01V3/02

    CPC分类号: G01V3/28

    摘要: A well logging tool and method are disclosed comprising a conductive mandrel, an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein, a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode assembly, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel and wherein the electrode assembly comprises a first conductor exposed to the exterior of the well logging tool and at least one second conductor conductively connected to the first conductor and exposed to an inner surface of the sleeve, wherein at least one of the first conductor or the second conductor being in sealed contact with the sleeve to prevent the passage of fluid through the sleeve.

    摘要翻译: 公开了测井工具和方法,其包括导电心轴,设置在导电心轴周围的天线阵列,其中天线阵列包括设置在绝缘支撑件上的多个天线和至少一个接触间隔件,所述至少一个接触间隔件具有 至少一个具有设置在其中的接触组件的导体通道,设置在所述天线阵列上的套筒,其中所述套筒包括至少一个电极组件,所述至少一个电极和所述接触组件适于提供从所述天线阵列的外部的径向导电路径 测井工具到导电心轴,并且其中电极组件包括暴露于测井工具的外部的第一导体和导电连接到第一导体并暴露于套筒的内表面的至少一个第二导体,其中至少 第一导体或第二导体之一与套筒密封接触以防止 流体通过套管。

    Insulated sleeve with conductive electrodes to reduce borehole effects for an induction tool
    18.
    发明授权
    Insulated sleeve with conductive electrodes to reduce borehole effects for an induction tool 有权
    绝缘套管带有导电电极,以减少感应工具的钻孔效应

    公开(公告)号:US07193420B2

    公开(公告)日:2007-03-20

    申请号:US11334198

    申请日:2006-01-17

    IPC分类号: G01V3/02

    CPC分类号: G01V3/28

    摘要: A well logging tool and method are disclosed comprising a conductive mandrel, an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein, a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode assembly, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel and wherein the electrode assembly comprises a first conductor exposed to the exterior of the well logging tool and at least one second conductor conductively connected to the first conductor and exposed to an inner surface of the sleeve, wherein at least one of the first conductor or the second conductor being in sealed contact with the sleeve to prevent the passage of fluid through the sleeve.

    摘要翻译: 公开了测井工具和方法,其包括导电心轴,设置在导电心轴周围的天线阵列,其中天线阵列包括设置在绝缘支撑件上的多个天线和至少一个接触间隔件,所述至少一个接触间隔件具有 至少一个具有设置在其中的接触组件的导体通道,设置在所述天线阵列上的套筒,其中所述套筒包括至少一个电极组件,所述至少一个电极和所述接触组件适于提供从所述天线阵列的外部的径向导电路径 测井工具到导电心轴,并且其中电极组件包括暴露于测井工具的外部的第一导体和导电连接到第一导体并暴露于套筒的内表面的至少一个第二导体,其中至少 第一导体或第二导体之一与套筒密封接触以防止 流体通过套管。

    Electrically non-conductive sleeve for use in wellbore instrumentation
    19.
    发明授权
    Electrically non-conductive sleeve for use in wellbore instrumentation 有权
    用于井筒仪表的非导电套管

    公开(公告)号:US09121260B2

    公开(公告)日:2015-09-01

    申请号:US12234822

    申请日:2008-09-22

    申请人: Dean M. Homan

    发明人: Dean M. Homan

    IPC分类号: F16L11/00 E21B47/01 G01V3/18

    CPC分类号: E21B47/01 G01V3/18

    摘要: A well logging instrument housing includes an electrically non-conductive tube and at least one layer of fiber embedded in a matrix surrounding an exterior of the tube. The at least one fiber layer includes at least one carbon fiber. The at least one or carbon fiber is arranged to have substantially no closed loops.

    摘要翻译: 测井仪器壳体包括非导电管和至少一层纤维,其嵌入围绕管的外部的基质中。 至少一个纤维层包括至少一个碳纤维。 所述至少一个或碳纤维被布置成基本上没有闭环。

    Formation Properties from Conductivity Tensor
    20.
    发明申请
    Formation Properties from Conductivity Tensor 审中-公开
    电导率张量的形成特性

    公开(公告)号:US20130166213A1

    公开(公告)日:2013-06-27

    申请号:US13333354

    申请日:2011-12-21

    IPC分类号: G06F19/00

    CPC分类号: G01V3/30 G01V3/38

    摘要: A logging tool having a plurality of spatially separated antennas is provided and used to make propagation-style measurements in a formation. Tensors are formed using the propagation-style measurements and one or more quantities are computed using the tensors. A formation evaluation is performed using the computed quantities. The formation evaluation determines a formation property or parameter such as horizontal resistivity, vertical resistivity, relative dip, azimuthal dip, bed boundary location, or bed thickness. The computed quantities may include compensated phase shift resistivity, compensated attenuation resistivity, symmetrized phase shift resistivity, symmetrized attenuation resistivity, anti-symmetrized phase shift resistivity, and anti-symmetrized attenuation resistivity. The measurements may be corrected for antenna gain errors and an air calibration may be performed. A zero-dimension inversion may be performed, while drilling, and the determined horizontal resistivity, vertical resistivity, relative dip, and/or azimuthal dip information may be sent to an uphole processor in real-time.

    摘要翻译: 提供具有多个空间分离的天线的测井工具,并用于在地层中进行传播风格的测量。 使用传播样式测量形成传感器,并且使用张量计算一个或多个量。 使用计算量进行地层评估。 形成评估决定了水平电阻率,垂直电阻率,相对倾角,方位角倾角,床边界位置或床层厚度等形成特征或参数。 计算量可以包括补偿相移电阻率,补偿衰减电阻率,对称化相移电阻率,对称衰减电阻率,抗对称化相移电阻率和抗对称化衰减电阻率。 可以对天线增益误差校正测量值,并且可以执行空气校准。 可以在钻孔时执行零维反转,并且可以实时地将确定的水平电阻率,垂直电阻率,相对倾角和/或方位角倾角信息发送到井上处理器。