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    Method and apparatus for a multi-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells
    2.
    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

    申请人： Otto N. Fanini ,  Stanislav W. Forgang ,  Berthold Kriegshauser ,  Liming Yu

    发明人： Otto N. Fanini ,  Stanislav W. Forgang ,  Berthold Kriegshauser ,  Liming Yu

    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。

    METHOD OF DETERMINING VERTICAL AND HORIZONTAL RESISTIVITY, AND RELATIVE DIP IN ANISOTROPIC EARTH FORMATIONS HAVING AN ARBITRARY ELECTRO-MAGNETIC ANTENNA COMBINATION AND ORIENTATION WITH ADDITIONAL ROTATION AND POSITION MEASUREMENTS
    3.
    发明授权
    METHOD OF DETERMINING VERTICAL AND HORIZONTAL RESISTIVITY, AND RELATIVE DIP IN ANISOTROPIC EARTH FORMATIONS HAVING AN ARBITRARY ELECTRO-MAGNETIC ANTENNA COMBINATION AND ORIENTATION WITH ADDITIONAL ROTATION AND POSITION MEASUREMENTS 有权
    确定垂直和水平电阻率的方法，以及具有静电电磁天线组合的非均匀地球形态的相对DIP和具有附加旋转和位置测量的方位

    公开(公告)号：US06819111B2

    公开(公告)日：2004-11-16

    申请号：US10302239

    申请日：2002-11-22

    申请人： Otto N. Fanini ,  Gulamabbas A. Merchant

    发明人： Otto N. Fanini ,  Gulamabbas A. Merchant

    IPC分类号： G01V318

    CPC分类号： G01V3/28

    摘要： The invention is a method of determining horizontal and vertical resistivity in an anisotropic formation using a combination of orientable triaxial and array antennae conveyed downhole. Measurements are taken at various azimuthal angles about a measuring device at a given depth. Values at each azimuthal orientation can be fit to a curve to yield information on the surrounding formation. Multiple measurements at a given depth and azimuthal orientation can be weighted to obtain an average value. Values from the curve fitting process are used in subsequent inversion processing and reduce the uncertainty of the inversion processing result. Utilization of a three dimensional geometry enables a unique resolution of the orientation of the principle axis of anisotropy, and consequently of horizontal and vertical resistivity, and dip.

    摘要翻译： 本发明是使用在井下传输的可定向三轴和阵列天线的组合来确定各向异性地层中的水平和垂直电阻率的方法。 在给定深度处围绕测量装置以各种方位角进行测量。 每个方位方向的值可以拟合到曲线上，以产生关于周围地层的信息。 在给定的深度和方位取向上的多个测量可以被加权以获得平均值。 曲线拟合过程中的值用于后续反演处理，降低了反演处理结果的不确定度。 利用三维几何能够使得各向异性主轴方向的独特分辨率以及因此的水平和垂直电阻率以及倾角。

    Conductivity anisotropy estimation method for inversion processing of measurements made by a transverse electromagnetic induction logging instrument
    5.
    发明授权
    Conductivity anisotropy estimation method for inversion processing of measurements made by a transverse electromagnetic induction logging instrument 失效
    横向电磁感应测井仪测量电导率各向异性估算方法

    公开(公告)号：US5999883A

    公开(公告)日：1999-12-07

    申请号：US42982

    申请日：1998-03-17

    申请人： Pravin Gupta ,  Berthold F. Kriegshauser ,  Otto N. Fanini

    发明人： Pravin Gupta ,  Berthold F. Kriegshauser ,  Otto N. Fanini

    IPC分类号： E21B41/00 ,  G01V3/28 ,  G06F19/00 ,  G01V3/38

    CPC分类号： G01V3/28 ,  E21B2041/0028

    摘要： A method for determining an initial estimate of the horizontal conductivity and the vertical conductivity of an anisotropic earth formation. Electromagnetic induction signals induced by induction transmitters oriented along three mutually orthogonal axes are measured. One of the mutually orthogonal axes is substantially parallel to a logging instrument axis. The electromagnetic induction signals are measured using first receivers each having a magnetic moment parallel to one of the orthogonal axes and using second receivers each having a magnetic moment perpendicular to a one of the orthogonal axes which is also perpendicular to the instrument axis. A relative angle of rotation of the perpendicular one of the orthogonal axes is calculated from the receiver signals measured perpendicular to the instrument axis. An intermediate measurement tensor is calculated by rotating magnitudes of the receiver signals through a negative of the angle of rotation. A relative angle of inclination of one of the orthogonal axes which is parallel to the axis of the instrument is calculated, from the rotated magnitudes, with respect to a direction of the vertical conductivity. The rotated magnitudes are rotated through a negative of the angle of inclination. Horizontal conductivity is calculated from the magnitudes of the receiver signals after the second step of rotation. An anisotropy parameter is calculated from the receiver signal magnitudes after the second step of rotation. Vertical conductivity is calculated from the horizontal conductivity and the anisotropy parameter.

    摘要翻译： 一种用于确定各向异性地层的水平导电率和垂直导电率的初始估计的方法。 测量由三个相互正交的轴取向的感应发射器引起的电磁感应信号。 相互正交的轴之一基本上平行于测井仪器轴线。 使用第一接收器测量电磁感应信号，每个接收机具有平行于正交轴之一的磁矩，并且使用第二接收器，每个接收器具有垂直于垂直于仪器轴的正交轴之一的磁矩。 从垂直于仪器轴测量的接收机信号计算垂直轴之一的相对旋转角度。 通过将接收机信号的大小旋转通过旋转角度的负值来计算中间测量张量。 相对于垂直导电率的方向，从旋转的大小计算平行于仪器的轴线的正交轴之一的相对倾斜角。 旋转的大小通过倾斜角度的负值旋转。 在第二个旋转步骤之后，根据接收机信号的幅度计算水平电导率。 从第二步旋转后的接收机信号幅度计算各向异性参数。 垂直电导率由水平电导率和各向异性参数计算。

    Method and apparatus for transverse electromagnetic induction well logging
    6.
    发明授权
    Method and apparatus for transverse electromagnetic induction well logging 失效
    横向电磁感应测井方法和装置

    公开(公告)号：US5781436A

    公开(公告)日：1998-07-14

    申请号：US686848

    申请日：1996-07-26

    申请人： Stanislav Forgang ,  Otto N. Fanini ,  Leonty A. Tabarovsky

    发明人： Stanislav Forgang ,  Otto N. Fanini ,  Leonty A. Tabarovsky

    IPC分类号： E21B41/00 ,  G01V3/28 ,  G06F19/00

    CPC分类号： G01V3/28 ,  E21B2041/0028

    摘要： A method of measuring the conductivity of earth formations penetrated by a wellbore. The method comprises selectively passing an alternating current through transmitter coils inserted into the wellbore. Each of the transmitter coils has a magnetic moment direction different from the magnetic moment direction of the other ones of the transmitter coils. The alternating current includes a first and a second frequency. The amplitude at the first frequency has a predetermined relationship to the amplitude at the second frequency. The relationship corresponds to the first and the second frequencies. The method includes selectively receiving voltages induced in a receiver coil having a sensitive direction substantially parallel to the axis of the corresponding transmitter coil through which the alternating current is passed. A difference in magnitudes between a component of the received voltage at the first frequency and a component of the voltage at the second frequency is measured, and conductivity is calculated from the difference in magnitudes of the components of the received voltage at the two frequencies. In a preferred embodiment, the step of measuring the difference in magnitudes between the voltage components at the two frequencies includes extracting digital signal samples of the received voltage at predetermined times with respect to a cycle of the transmitter current at the first frequency.

    摘要翻译： 测量井眼穿透的地层导电性的方法。 所述方法包括选择性地使交流电流通过插入到井筒中的发射器线圈。 每个发射器线圈具有与其他发射器线圈的磁矩方向不同的磁矩方向。 交流电流包括第一和第二频率。 第一频率处的振幅与第二频率处的振幅具有预定的关系。 该关系对应于第一和第二频率。 该方法包括有选择地接收在接收器线圈中感应的电压，该接收器线圈具有基本上平行于相应发射器线圈的轴线的敏感方向，交流电通过该轴线。 测量第一频率的接收电压的分量与第二频率处的电压分量之间的幅度差，并根据两个频率处的接收电压的分量的大小差来计算导电率。 在优选实施例中，测量两个频率的电压分量之间的幅度差的步骤包括相对于第一频率处的发射机电流的周期，以预定的时间提取接收电压的数字信号样本。

    High performance current switch for borehole logging tools
    7.
    发明授权
    High performance current switch for borehole logging tools 失效
    用于钻孔测井工具的高性能电流开关

    公开(公告)号：US5646561A

    公开(公告)日：1997-07-08

    申请号：US575626

    申请日：1995-12-20

    申请人： Otto N. Fanini ,  Stanislav Forgang

    发明人： Otto N. Fanini ,  Stanislav Forgang

    IPC分类号： H03K17/687 ,  H03K17/64 ,  H03K17/56

    CPC分类号： H03K17/6877

    摘要： A current switch for borehole logging tools operating at high temperatures with high load currents, which includes a driver unit that responds to an input digital control signal by holding an output field effect transistor in a turn-off state until its gate electrode is fully charged before allowing the transistor to supply current to an inductive or acoustic load, and by effecting a rapid discharge of the gate electrode to turn the transistor off. A digital coupler is inserted between the source of the input digital control signal and the driver unit to electrically decouple the load current from the source. The effects of spurious noise contaminants including power spikes in the load, fly-back coupling, and Miller's capacitance thereby are minimized and a switching action with minimal transition time is achieved. The current switch is particularly adaptable for use in a complementary-symmetric circuit for a bi-directional switch that causes current to flow first in one direction, and then in the opposite direction through the load with minimal cross propagation of noise.

    摘要翻译： 一种用于钻井测井工具的电流开关，其工作在高负载电流的高温下，其包括驱动器单元，其通过将输出场效应晶体管保持在关断状态来响应输入数字控制信号，直到其栅电极完全充电 允许晶体管将电流提供给感应或声学负载，并且通过实现栅电极的快速放电以使晶体管截止。 数字耦合器插入在输入数字控制信号的源极和驱动器单元之间，以将负载电流与源电耦合。 包括负载中的功率尖峰，飞回耦合和米勒电容的杂散噪声污染物的影响被最小化，并且实现了具有最小转换时间的开关动作。 电流开关特别适用于用于双向开关的互补对称电路，其导致电流首先在一个方向上流动，然后以相反的方向通过负载以最小的噪声交叉传播。

    Communication between downhole tools and a surface processor using a network
    8.
    发明授权
    Communication between downhole tools and a surface processor using a network 有权

    公开(公告)号：US09683438B2

    公开(公告)日：2017-06-20

    申请号：US14490298

    申请日：2014-09-18

    申请人： Otto N. Fanini ,  Harold Andrade

    发明人： Otto N. Fanini ,  Harold Andrade

    IPC分类号： G01V3/00 ,  E21B47/12 ,  H04L29/08 ,  H04L29/06

    CPC分类号： E21B47/12 ,  H04L67/12 ,  H04L69/08

    摘要： A system for communicating with subsurface components includes: a surface host connected to a subsurface location; a subsurface host connected to the surface host by a communication link, the subsurface host configured to communicate with the surface host using a communication protocol; and a plurality of tools configured to be disposed in a borehole, the plurality of downhole tools communicatively coupled to the subsurface host via a communication network. The communication network is divided into a plurality of network subsets, each network subset of the plurality of network subsets including one or more downhole tools, all of the one or more downhole tools configured to communicate using a common protocol, each network subset including a network device configured to receive data and translate the data to the common protocol, the common protocol of one network subset being different than the common protocol of at least one other network subset.

    THREE-PHASE FLOW IDENTIFICATION AND RATE DETECTION USING ACOUSTIC GUIDE ARRAY
    9.
    发明申请
    THREE-PHASE FLOW IDENTIFICATION AND RATE DETECTION USING ACOUSTIC GUIDE ARRAY 有权
    使用声学指导阵列的三相流量识别和速率检测

    公开(公告)号：US20160108730A1

    公开(公告)日：2016-04-21

    申请号：US14519817

    申请日：2014-10-21

    申请人： Otto N. Fanini ,  Mohamed Daoud

    发明人： Otto N. Fanini ,  Mohamed Daoud

    IPC分类号： E21B49/08 ,  G01S15/02 ,  G01S15/88 ,  G01V1/52

    CPC分类号： G01V1/52 ,  E21B47/10 ,  G01S7/539 ,  G01S15/02 ,  G01S15/50 ,  G01S15/58 ,  G01S15/87 ,  G01S15/88 ,  G01V1/44 ,  G01V2001/526

    摘要： An apparatus for estimating a fraction of each component of a fluid of interest flowing in a cased borehole and a property of the fluid includes an acoustic waveguide sensor having a waveguide configured to guide an acoustic signal along a waveguide path and an array of acoustic transducers coupled to the waveguide for transmitting and receiving an acoustic signal, the acoustic waveguide sensor being configured to transmit and receive a compression-wave acoustic signal that is reflected off of the casing and transmit and receive a shear-wave acoustic signal that propagates along the path. A controller is coupled to the waveguide sensor and configured to perform a compression-wave acoustic measurement on the fluid using the acoustic waveguide sensor in order to estimate the fraction of each component of the fluid and to perform a shear-wave acoustic measurement in order to estimate the property of the fluid.

    摘要翻译： 用于估计在套管钻孔中流动的感兴趣流体的每个部件的分数的一部分和流体的特性的装置包括声波导传感器，其具有被配置为沿着波导路径引导声信号的波导和耦合的声换能器阵列 用于发送和接收声信号的波导，声波导传感器被配置为发送和接收从外壳反射的压缩波声信号，并且发送和接收沿着路径传播的剪切波声信号。 控制器耦合到波导传感器并且被配置为使用声波导传感器对流体执行压缩波声学测量，以便估计流体的每个分量的分数并执行剪切波声学测量，以便 估计流体的性质。