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    Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion
    1.
    发明授权
    Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion 失效
    在存在入侵时确定各向同性和各向异性地层电阻率的装置和方法

    公开(公告)号：US07619540B2

    公开(公告)日：2009-11-17

    申请号：US11436015

    申请日：2006-05-17

    申请人： Stephen D. Bonner ,  Dean M. Horman ,  Gerald M. Minerbo ,  Richard A. Rosthal ,  Kuo-Chiang Chen

    发明人： Stephen D. Bonner ,  Dean M. Horman ,  Gerald M. Minerbo ,  Richard A. Rosthal ,  Kuo-Chiang Chen

    IPC分类号： G01V3/00

    CPC分类号： G01V3/28

    摘要： A logging tool includes a tool body; a simple transmitter comprising a single antenna disposed on the tool body; four simple receivers, each comprising a single antenna, disposed on the tool body and spaced apart from the simple transmitter to form four arrays; and an electronic module for controlling operation of the four arrays, wherein the simple transmitter is configured to generate a magnetic field having a transverse component, wherein each of the four simple receivers is sensitive to the magnetic field generated by the simple transmitter, and at least one of the four simple receivers is sensitive to the transverse component of the magnetic field generated by the simple transmitter, and wherein the four arrays are configured to provide measurements at least three depths of investigation.

    摘要翻译： 测井工具包括工具体; 简单的发射机，包括设置在所述工具主体上的单个天线; 四个简单接收器，每个包括单个天线，设置在工具主体上并与简单发射器间隔开以形成四个阵列; 以及用于控制四个阵列的操作的电子模块，其中简单发射器被配置为产生具有横向分量的磁场，其中四个简单接收机中的每一个对由简单发射机产生的磁场敏感，并且至少 四个简单接收器之一对于由简单发射器产生的磁场的横向分量敏感，并且其中四个阵列被配置为提供至少三个调查深度的测量。

    Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion
    3.
    发明授权
    Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion 有权
    在存在入侵时确定各向同性和各向异性地层电阻率的装置和方法

    公开(公告)号：US07091877B2

    公开(公告)日：2006-08-15

    申请号：US10707813

    申请日：2004-01-14

    申请人： Thomas D. Barber ,  Stephen D. Bonner ,  Dean M. Homan ,  Gerald N. Minerbo ,  Richard A. Rosthal ,  Kuo-Chiang Chen

    发明人： Thomas D. Barber ,  Stephen D. Bonner ,  Dean M. Homan ,  Gerald N. Minerbo ,  Richard A. Rosthal ,  Kuo-Chiang Chen

    IPC分类号： G01V3/00

    CPC分类号： G01V3/28

    摘要： A logging tool includes a tool body; a simple transmitter comprising a single antenna disposed on the tool body; four simple receivers, each comprising a single antenna, disposed on the tool body and spaced apart from the simple transmitter to form four arrays; and an electronic module for controlling operation of the four arrays, wherein the simple transmitter is configured to generate a magnetic field having a transverse component, wherein each of the four simple receivers is sensitive to the magnetic field generated by the simple transmitter, and at least one of the four simple receivers is sensitive to the transverse component of the magnetic field generated by the simple transmitter, and wherein the four arrays are configured to provide measurements at at least three depths of investigation.

    摘要翻译： 测井工具包括工具体; 简单的发射机，包括设置在所述工具主体上的单个天线; 四个简单接收器，每个包括单个天线，设置在工具主体上并与简单发射器间隔开以形成四个阵列; 以及用于控制四个阵列的操作的电子模块，其中简单发射器被配置为产生具有横向分量的磁场，其中四个简单接收机中的每一个对由简单发射机产生的磁场敏感，并且至少 四个简单接收器之一对由简单发射器产生的磁场的横向分量敏感，并且其中四个阵列被配置为在至少三个调查深度提供测量。

    Shielding method and apparatus for selective attenuation of an electromagnetic energy field component
    5.
    发明授权
    Shielding method and apparatus for selective attenuation of an electromagnetic energy field component 有权
    用于选择性衰减电磁能场分量的屏蔽方法和装置

    公开(公告)号：US06351127B1

    公开(公告)日：2002-02-26

    申请号：US09452660

    申请日：1999-12-01

    申请人： Richard A. Rosthal ,  Dean M. Homan ,  Dzevat Omeragic ,  Stephen D. Bonner ,  Brian Clark ,  Scott S. Chesser ,  Thomas D. Barber

    发明人： Richard A. Rosthal ,  Dean M. Homan ,  Dzevat Omeragic ,  Stephen D. Bonner ,  Brian Clark ,  Scott S. Chesser ,  Thomas D. Barber

    IPC分类号： G01V312

    CPC分类号： G01V3/28

    摘要： A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.

    摘要翻译： 一种与阱工具结合使用的屏蔽装置，用于当该部件与屏蔽件相互作用时选择性地衰减一个或多个电磁能量场分量。 该屏蔽由柔性条带或导电体构成，并且包括至少一个倾斜的槽或倾斜的导电元件。 屏蔽适于包围安装在井具上的天线。 一种用于旋转发射器或接收器线圈的磁偶极子的轴线的方法。 一种用于缠绕和屏蔽电线圈使得所得线圈发射或接收所选择的电磁能量分量的方法。

    Apparatus and method for determining the resistivity of earth formations
    6.
    发明授权
    Apparatus and method for determining the resistivity of earth formations 失效
    用于确定地层电阻率的装置和方法

    公开(公告)号：US5339037A

    公开(公告)日：1994-08-16

    申请号：US955101

    申请日：1992-10-09

    申请人： Stephen D. Bonner ,  Richard A. Rosthal ,  Abdullah A. Bagersh

    发明人： Stephen D. Bonner ,  Richard A. Rosthal ,  Abdullah A. Bagersh

    IPC分类号： G01V3/20 ,  G01V3/18

    CPC分类号： G01V3/20

    摘要： An apparatus for determining the resistivity of formations surrounding an earth borehole. An elongated electrically conductive body is movable through the borehole. A first transmitter establishes a first current in the body from a first transmitter position on the body, the first current traveling in a path that includes the body and the formations. An electrode is mounted on the body and has a surface that is electrically isolated from the surface of the body. A first electrical signal, resulting from the first current, is measured at the electrode. A second transmitter establishes a second current in the body from a second transmitter position on the body that is spaced from the first transmitter position, the second current traveling in a path that includes the body and the formations. A second electrical signal, resulting from the second current, is measured at the electrode. A current monitor measures the axial current passing a monitor position on the body to obtain a monitor current value. An indication of formation resistivity is derived as a function of the first electrical signal, the second electrical signal, and the monitor current value.

    摘要翻译： 用于确定围绕地球钻孔的地层电阻率的装置。 细长的导电体可移动穿过钻孔。 第一发射器从身体上的第一发射器位置在身体中建立第一电流，第一电流在包括身体和地层的路径中行进。 电极安装在主体上并且具有与主体表面电隔离的表面。 在电极处测量由第一电流产生的第一电信号。 第二发射机从身体上与第一发射器位置间隔开的第二发射器位置在身体中建立第二电流，第二电流在包括身体和地层的路径中行进。 在电极处测量由第二电流产生的第二电信号。 电流监视器测量通过身体上的监视器位置的轴向电流以获得监视器电流值。 导出地层电阻率的指示作为第一电信号，第二电信号和监视电流值的函数。

    Method and apparatus for directional well logging with a shield having sloped slots
    8.
    发明授权
    Method and apparatus for directional well logging with a shield having sloped slots 有权
    用于具有倾斜槽的屏蔽件进行定向测井的方法和装置

    公开(公告)号：US06297639B1

    公开(公告)日：2001-10-02

    申请号：US09452576

    申请日：1999-12-01

    申请人： Brian Clark ,  Richard A. Rosthal ,  Dean M. Homan ,  Dzevat Omeragic ,  Stephen D. Bonner ,  Scott S. Chesser ,  Thomas D. Barber

    发明人： Brian Clark ,  Richard A. Rosthal ,  Dean M. Homan ,  Dzevat Omeragic ,  Stephen D. Bonner ,  Scott S. Chesser ,  Thomas D. Barber

    IPC分类号： G01V330

    CPC分类号： G01V3/30

    摘要： Methods and apparatus for making directional measurements of earth formations surrounding a borehole. New antenna coil shield designs are utilized to provide selective attenuation of at least one electromagnetic energy field component as the component interacts with the shield. The new shields are implemented in several downhole tool configurations to provide azimuthally focused formation measurements. In effect, the new shield filters interacting electromagnetic energy field components to pass those components corresponding to a magnetic dipole oriented at an angle from the tool axis. The shields thereby alter a coil's envelope of influence to electromagnetic energy. The new shields also form part of a system for making directional measurements while drilling.

    摘要翻译： 用于对钻孔周围的地层进行方向测量的方法和装置。 新的天线线圈屏蔽设计被用于在组件与屏蔽件相互作用时提供至少一个电磁能量场分量的选择性衰减。 新的防护罩在几个井下工具配置中实现，以提供方位角聚焦的地层测量。 实际上，新的屏蔽滤波器与电磁能场分量相互作用以通过对应于与工具轴成一定角度取向的磁偶极子的那些部件。 屏蔽因此改变了线圈对电磁能的影响。 新的盾牌也构成了钻井时进行方向测量的系统的一部分。

    Apparatus and method for determining the resitivity of underground formations surrounding a borehole
    9.
    发明授权
    Apparatus and method for determining the resitivity of underground formations surrounding a borehole 失效
    用于确定井眼周围地下地层的电位的装置和方法

    公开(公告)号：US5463320A

    公开(公告)日：1995-10-31

    申请号：US259849

    申请日：1994-06-15

    申请人： Stephen D. Bonner ,  Richard A. Rosthal ,  Abdullah A. Bagersh ,  Martin G. Luling ,  Jacques A. Jundt

    发明人： Stephen D. Bonner ,  Richard A. Rosthal ,  Abdullah A. Bagersh ,  Martin G. Luling ,  Jacques A. Jundt

    IPC分类号： G01V3/20 ,  G01V3/18

    CPC分类号： G01V3/20

    摘要： A logging tool for use in determining the resistivity of an underground formation surrounding a borehole comprises a mandrel with two transmitters spaced apart thereon, each serving to establish a current in the mandrel and in the underground formation. A series of electrodes are spaced along the body between the transmitters and sensors, located at each electrode, measure radial current flow along a path from the mandrel to the underground formation via a respective electrode. Sensors also provide the axial current flowing along the whole mandrel and at positions corresponding to each electrode. A method of determining the formation resistivity includes the steps of measuring the radial currents R.sub.1 R.sub.2 from the mandrel to the formation via each electrode and obtaining the axial currents M.sub.01 M.sub.02 along the mandrel at each electrode due to each transmitter; measuring the total axial current M.sub.12 along the mandrel from the first or second transmitter and deriving the resistivity of the formation from the radial focused current R.sub.c for each electrode according to the relationship R.sub.c =1/M.sub.21 (M.sub.02 R.sub.1 +M.sub.01 R.sub.2).

    摘要翻译： 用于确定围绕钻孔的地下地层的电阻率的测井工具包括具有间隔开的两个发射器的心轴，每个用于在心轴和地下地层中建立电流。 位于每个电极处的发射器和传感器之间的一系列电极沿主体间隔开，测量沿着从心轴经由相应电极到地下地层的路径的径向电流。 传感器还提供沿着整个心轴和对应于每个电极的位置流动的轴向电流。 确定地层电阻率的方法包括以下步骤：通过每个电极测量从心轴到地层的径向电流R1R2，并且由于每个发射器获得每个电极处的心轴处的轴向电流M01M02; 根据Rc = 1 / M21（M02R1 + M01R2）的关系，从第一或第二发射器测量沿着心轴的总轴向电流M12，并从每个电极的径向聚焦电流Rc导出地层的电阻率。