-
41.发明授权公开(公告)号：US07598741B2
公开(公告)日：2009-10-06
申请号：US11685271
申请日：2007-03-13
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。
-
42.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 失效用于水平，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：US06900640B2
公开(公告)日：2005-05-31
申请号：US10214436
申请日：2002-08-07
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。
-
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。
-
44.发明授权Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model 失效钻井电阻率成像工具，横向感应测井和拉伸水饱和度模型的水饱和度和砂分数测定公开(公告)号：US06493632B1
公开(公告)日：2002-12-10
申请号：US09474049
申请日：1999-12-28
申请人： Richard A. Mollison , Juergen S. Schoen , Otto N. Fanini , Berthold Kriegshauser , Milomir Pavlovic
发明人： Richard A. Mollison , Juergen S. Schoen , Otto N. Fanini , Berthold Kriegshauser , Milomir Pavlovic
IPC分类号： G01V700
摘要： The total porosity of a formation, a fractional volume of the shale, and a resistivity of the shale are determined in a laminated reservoir including sands that may have dispersed shales therein. A tensor petrophysical model determines the laminar shale volume and laminar sand conductivity from vertical and horizontal conductivities derived from multi-component induction log data. The volume of dispersed shale and the total and effective porosities of the laminar sand fraction are determined using a Thomas-Stieber-Juhasz approach. Removal of laminar shale conductivity and porosity effects reduces the laminated shaly sand problem to a single dispersed shaly sand model to which the Waxman-Smits equation can be applied.
摘要翻译： 在包括可能在其中具有分散的页岩的砂岩的层压储层中确定地层的总孔隙率，页岩的分数体积和页岩的电阻率。 张量岩石物理模型确定了来自多分量感应测井数据的垂直和水平电导率的层状页岩体积和层流导电率。 使用Thomas-Stieber-Juhasz方法测定分散页岩的体积和层状砂分数的总有效孔隙度。 去除层状页岩导电率和孔隙率效应将层状砂质砂问题减少到可应用Waxman-Smits方程的单个分散的沙质砂模型。
-
45.发明授权公开(公告)号：US06466872B1
公开(公告)日：2002-10-15
申请号：US09676097
申请日：2000-09-29
IPC分类号： G01V318
CPC分类号： G01V3/28
摘要： Shoulder corrections are applied to measurements obtained from a multicomponent electromagnetic logging tool. An anisotropic resistivity model is obtained using the shoulder corrected data. The process is iterated until a good match is obtained between the shoulder corrected data and the model output.
摘要翻译： 肩部校正适用于从多组分电磁测井仪获得的测量。 使用肩部校正数据获得各向异性电阻率模型。 迭代该过程直到在肩部校正数据和模型输出之间获得良好的匹配。
-
46.发明授权
公开(公告)号：US06111409A
公开(公告)日：2000-08-29
申请号：US033104
申请日：1998-03-02
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振幅来确定芳族烃是否存在。 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。
-
47.发明授权
公开(公告)号：US6108605A
公开(公告)日：2000-08-22
申请号：US212171
申请日：1998-12-16
申请人： Mark R. Doyle , Otto N. Fanini
发明人： Mark R. Doyle , Otto N. Fanini
CPC分类号： G01V3/28
摘要： A system and method for controlling the transmitted signal for use in a well logging tool, using an iterative method (preferably the method of steepest descent) such that the transmitted signal more closely resembles a desired waveform.
摘要翻译： 一种用于使用迭代方法（优选地是最速下降的方法）来控制在测井工具中使用的发射信号的系统和方法，使得所发射的信号更接近于期望的波形。
-
48.发明授权
公开(公告)号：US5999884A
公开(公告)日：1999-12-07
申请号：US44741
申请日：1998-03-19
CPC分类号： G01V3/28 , E21B2041/0028
摘要： A method for estimating axial positions of formation layer boundaries from transverse electromagnetic induction signals. A first derivative is calculated with respect to depth of the induction signals. A second derivative of the signals is calculated. The second derivative is muted. Layer boundaries are selected at axial positions where the muted second derivative is non zero, and the first derivative changes sign. The selected boundaries are thickness filtered to eliminate boundaries which have the same axial spacing as the spacing between an induction transmitter and receiver used to measure the induction signals, and to eliminate boundaries having a spacing less than an axial resolution of the induction signals. In a preferred embodiment, the process is repeated using transverse induction measurements made at another alternating current frequency. Layer boundaries selected in both frequencies are determined to be the layer boundaries. An alternative embodiment includes Fourier transforming the induction signals into the spatial frequency domain, low pass filtering the Fourier transformed signals at a band limit about equal to the axial resolution of the induction signals, calculating a central first derivative of the filtered, Fourier transformed signals, calculating an inverse Fourier transform of the central first derivative, determining roots of the inverse Fourier transform, and testing localized properties of the inverse Fourier transform within a selected number of data sample points of the selected roots, thereby providing indications of formation layer boundaries at axial positions most likely to be true ones of the formation layer boundaries.
摘要翻译： 一种用于估计地层层边界与横向电磁感应信号的轴向位置的方法。 相对于感应信号的深度计算一阶导数。 计算信号的二阶导数。 二阶导数被静音。 在静态二阶导数不为零的轴位置选择层边界，第一导数更改符号。 所选择的边界被厚度滤波以消除与用于测量感应信号的感应发射器和接收器之间的间隔具有相同轴向间距的边界，并且消除间隔小于感应信号的轴向分辨率的边界。 在优选实施例中，使用在另一交流频率下进行的横向感应测量来重复该过程。 在两个频率中选择的层边界被确定为层边界。 一个替代实施例包括将感应信号傅里叶变换成空间频域，在大约等于感应信号的轴向分辨率的频带限制下对傅里叶变换信号进行低通滤波，计算滤波后的傅里叶变换信号的中心一阶导数， 计算中心一阶导数的傅里叶逆变换，确定逆傅里叶变换的根，并在所选择的根的选定数量的数据采样点内测试逆傅里叶变换的局部特性，从而在轴向上提供形成层边界的指示 位置最有可能是形成层边界的真实位置。
-
49.发明授权Apparatus for measuring resistivity of an earth formation using delta-sigma digital signal generation and sigma-delta digital detection system 失效用于使用delta-sigma数字信号产生和Σ-Δ数字检测系统测量地层电阻率的装置
公开(公告)号：US5585727A
公开(公告)日：1996-12-17
申请号：US373409
申请日：1995-01-17
申请人： Otto N. Fanini , Antonio Fabris
发明人： Otto N. Fanini , Antonio Fabris
CPC分类号： G01V3/24
摘要： An apparatus for measuring resistivity of an earth formation. The apparatus includes at least one source of measuring current. The source includes a delta-sigma modulator and a serial bit source coupled to the modulator. The serial bit source represents the magnitude of the measuring current at spaced apart time intervals. The apparatus includes a sensor responsive to formation current resulting from interaction of the measure current with the earth formation. The sensor is coupled to a sigma-delta modulator. The modulator is coupled to a digital mixer and a digital filter. The output of the digital filter corresponds to the magnitude of the measure current detected by the sensor sampled at spaced apart time intervals. In a preferred embodiment, the apparatus includes a plurality of current sources each having a different frequency. The sigma-delta modulator is coupled to a plurality of mixers each for demodulating one of the different source frequencies.
摘要翻译： 一种用于测量地层电阻率的装置。 该装置包括至少一个测量电流源。 源包括Δ-Σ调制器和耦合到调制器的串行位源。 串行位源以间隔开的时间间隔表示测量电流的大小。 该装置包括响应于测量电流与地层相互作用而产生的地层电流的传感器。 传感器耦合到Σ-Δ调制器。 调制器耦合到数字混频器和数字滤波器。 数字滤波器的输出对应于由间隔开的时间间隔采样的传感器检测的测量电流的大小。 在优选实施例中，该装置包括多个电流源，每个电流源具有不同的频率。 Σ-Δ调制器耦合到多个混频器，每个混频器用于解调不同的源频率之一。
-
公开(公告)号：US5173169A
公开(公告)日：1992-12-22
申请号：US697269
申请日：1991-05-08
CPC分类号： C25D17/16 , C25D5/006 , Y10S204/05
摘要： The present invention relates to a method of electroplating in which the electroplating bath is treated by the direct injection of electromagnetic radiation. Most preferably, the electromagnetic radiation is within the radio frequency range and is injected through a metal conductor directly in contact with the bath. Such treatment increases the speed of electroplating as well as the quality of the plated product. The invention is applicable to the plating of zinc, chrome, nickel, precious metals and the like.
摘要翻译： 本发明涉及一种电镀方法，其中通过直接注入电磁辐射来处理电镀浴。 最优选地，电磁辐射在射频范围内，并通过直接与浴接触的金属导体注入。 这种处理增加了电镀的速度以及电镀产品的质量。 本发明适用于镀锌，铬，镍，贵金属等。
-
-
-
-
-
-
-
-
-
搜索结果
50 条记录 (耗时 0.026 秒)
