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51. 发明申请

US20090084185A1 ELECTROMAGNETIC ACOUSTIC TRANSDUCER WITH CROSS-TALK ELIMINATION 有权
标题翻译：具有交叉消除的电磁声学传感器
公开(公告)号：US20090084185A1
公开(公告)日：2009-04-02
申请号：US11862965
申请日：2007-09-27
申请人： Arcady Reiderman , Stanislav W. Forgang
发明人： Arcady Reiderman , Stanislav W. Forgang
IPC分类号： G01N29/04
CPC分类号： G01N29/2412 , B06B1/04 , G01N29/32
摘要： The electromagnetic acoustic transducer (EMAT) transducer disclosed herein is useful for the non-destructive analysis of objects. The transducer comprises a core having a winding and a coil disposed between the core and the object to be analyzed. One transducer can be used as a transmitter and another transducer as a receiver. Then selectively switching static magnetic field in either transmitter or receiver and processing data with and without static magnetic field allows for eliminating artifacts due to parasitic coupling between the transmitter/receiver pair. The switching of the static magnetic field can be implemented either by using electromagnet or a pair of permanent magnets where magnetization of one permanent magnet is reversed to provide cancellation of the static magnetic field.
摘要翻译：本文公开的电磁声换能器（EMAT）换能器对于物体的非破坏性分析是有用的。换能器包括具有绕组和设置在芯和待分析对象之间的线圈的芯。一个传感器可以用作发射器，另一个传感器可以用作接收器。然后，选择性地切换发射机或接收机中的静态磁场以及使用和不使用静态磁场的处理数据，可以消除由于发射机/接收机对之间的寄生耦合引起的伪影。静磁场的切换可以通过使用电磁体或一对永磁体来实现，其中一个永磁体的磁化反转以提供静磁场的抵消。

52. 发明申请

US20080183392A1 Downhole Multi-Phase Flow Imager 失效
标题翻译：井下多相流动成像仪
公开(公告)号：US20080183392A1
公开(公告)日：2008-07-31
申请号：US12014460
申请日：2008-01-15
申请人： Stanislav W. Forgang
发明人： Stanislav W. Forgang
IPC分类号： E21B47/10
CPC分类号： G01V3/24
摘要： Dynamic gain setting is provided for a multiphase flow measuring device that measures in-phase and quadrature signals. The average current at a plurality of measure electrodes is determined and subtracted from the individual measure currents to give a measurement with improved dynamic range.
摘要翻译：提供动态增益设置用于测量同相和正交信号的多相流量测量装置。确定多个测量电极处的平均电流，并从各个测量电流中减去，以提供具有改善的动态范围的测量。

53. 再颁专利

USRE40167E1 Nuclear magnetic resonance fluid characterization apparatus and method for using with electric wireline formation testing instruments 失效
标题翻译：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
申请人： Carl M. Edwards , Otto N. Fanini , Stanislav W. Forgang
发明人： Carl M. Edwards , Otto N. Fanini , Stanislav W. Forgang
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。

54. 发明授权

US10145976B2 Arrays of receive antennas for magnetic resonance measurements 有权
公开(公告)号：US10145976B2
公开(公告)日：2018-12-04
申请号：US15166717
申请日：2016-05-27
申请人： Marc S. Ramirez , Carl M. Edwards , Stanislav W. Forgang , Babak Kouchmeshky
发明人： Marc S. Ramirez , Carl M. Edwards , Stanislav W. Forgang , Babak Kouchmeshky
IPC分类号： G01R33/383 , G01V3/32 , G01R33/34 , G01N24/08 , G01R33/3415 , G01R33/38 , G01R33/36
摘要： A nuclear magnetic resonance apparatus for estimating properties of an earth formation includes a carrier configured to be deployed in a borehole in the earth formation and at least one transmitting assembly disposed in the carrier and configured to generate an oscillating magnetic field in a volume of interest within the earth formation. The apparatus also includes at least one receiving assembly disposed in the carrier and configured to detect a nuclear magnetic resonance (NMR) signal originating in the volume of interest. In this apparatus, the receiving assembly includes at least a first longitudinal region with a loop coil and a butterfly coil, the loop coil central axis being located over a region of the magnet assembly where a static magnetic field is predominantly along an azimuthal direction to the carrier and the butterfly coil being at least partially overlapped with the loop coil to reduce mutual coupling.

55. 发明授权

US08965704B2 Apparatus and method for formation resistivity measurements in oil-based mud using a floating reference signal 有权
标题翻译：使用浮动参考信号的油基泥浆中地层电阻率测量的装置和方法
公开(公告)号：US08965704B2
公开(公告)日：2015-02-24
申请号：US13359608
申请日：2012-01-27
申请人： Leonty A. Tabarovsky , Stanislav W. Forgang
发明人： Leonty A. Tabarovsky , Stanislav W. Forgang
IPC分类号： G01V1/40 , G01V3/00 , G01V3/24 , E21B47/10
CPC分类号： G01V3/24 , E21B47/102
摘要： Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole containing an oil-based drilling fluid. The apparatus includes an electrode disposed at a carrier and configured to inject alternating current into the formation. An electrically conductive plate is disposed between the first electrode and a borehole wall. An electrical insulator is disposed between and contacts the first electrode and the conductive plate. The apparatus is configured to prevent the drilling fluid from being disposed between the first electrode and the conductive plate. A first sensor is used to measure an electric field established between the first electrode and the conductive plate. A processor is configured to receive a measurement of the electric field to use as a floating reference signal to determine a phase difference with respect to a measured electrical quantity related to the injected electrical current in order to estimate the property.
摘要翻译：公开了一种用于估计由含有油基钻井液的钻孔穿透的地层的性质的装置。该装置包括设置在载体处并被配置为将交流电注入地层中的电极。导电板设置在第一电极和钻孔壁之间。电绝缘体设置在第一电极和导电板之间并与第一电极和导电板接触。该装置被配置为防止钻井液布置在第一电极和导电板之间。第一传感器用于测量在第一电极和导电板之间建立的电场。处理器被配置为接收电场的测量以用作浮动参考信号，以相对于与注入的电流相关的测量的电量来确定相位差，以便估计该性质。

56. 发明授权

US08965702B2 Formation resistivity measurements using multiple controlled modes 有权
标题翻译：使用多个受控模式的地层电阻率测量
公开(公告)号：US08965702B2
公开(公告)日：2015-02-24
申请号：US13359563
申请日：2012-01-27
申请人： Leonty A. Tabarovsky , Stanislav W. Forgang
发明人： Leonty A. Tabarovsky , Stanislav W. Forgang
IPC分类号： G01V1/40 , G01V3/00 , G01V3/26
CPC分类号： G01V3/26
摘要： Disclosed is an apparatus for estimating a property of an earth formation penetrated by a borehole. The apparatus includes a plurality of electrodes disposed downhole and configured to inject an electrical current into the earth formation using an applied voltage and/or measure electrical current resulting from an injection of the electrical current. The apparatus also includes a processor configured to perform a series of formation measurements that include injecting current into the earth formation using a unique subset of electrodes in the plurality of electrodes and measuring current in the earth formation using one or more electrodes not used for the current injecting. The processer sums the measured currents for the electrodes wherein the sum of electrical currents for at least one electrode that measured electrical current is substantially in phase with the applied voltage; and uses the sum of in phase currents to estimate the property.
摘要翻译：公开了一种用于估计钻孔穿透的地层的性质的装置。该装置包括设置在井下的多个电极，并被配置为使用施加的电压将电流注入地层，并且/或测量由电流注入产生的电流。该装置还包括处理器，其被配置为执行一系列地层测量，其包括使用多个电极中的唯一电极子集将电流注入到地层中，并且使用未用于电流的一个或多个电极测量地层中的电流注射。处理器对电极的测量电流求和，其中测量电流的至少一个电极的电流的总和与施加的电压基本上同相; 并使用相电流的和估计属性。

57. 发明授权

US08890541B2 Method and apparatus for calibrating deep-reading multi-component induction tools with minimal ground effects 有权
标题翻译：用于校准具有最小地面效应的深度读数多分量感应工具的方法和装置
公开(公告)号：US08890541B2
公开(公告)日：2014-11-18
申请号：US13211863
申请日：2011-08-17
申请人： Fei Le , Michael B. Rabinovich , Stanislav W. Forgang
发明人： Fei Le , Michael B. Rabinovich , Stanislav W. Forgang
IPC分类号： G01R35/00 , G01V13/00 , G01V3/28
CPC分类号： G01V13/00 , G01V3/28
摘要： An apparatus and method for calibrating a multi-component induction logging tool. The method may include orienting a Z-transmitter coil to be substantially orthogonal to at least one Z-receiver coil, positioning an X-transmitter coil disposed on the logging tool so that the X-transmitter coil is substantially parallel to a conducting surface; encompassing the Z-transmitter coil, the X-transmitter coil, and at least one Z-receiver coil of the logging tool with at least one conducting loop of a calibrator; and calibrating the logging tool using the calibrator. The apparatus may include a calibrator configured to receive the logging tool. The Z-transmitter coil and the Z-receiver coil may be located on separate subs that are detachable from one another.
摘要翻译：一种用于校准多部件感应测井工具的装置和方法。该方法可以包括将Z-发射器线圈定向为与至少一个Z-接收器线圈基本上正交，定位设置在测井工具上的X发射器线圈，使得X发射器线圈基本上平行于导电表面; 包括测量工具的Z发射器线圈，X发射器线圈和至少一个Z轴接收器线圈，其具有校准器的至少一个导电回路; 并使用校准器校准测井工具。该装置可以包括被配置为接收测井工具的校准器。 Z发射器线圈和Z-接收器线圈可以位于可彼此分离的分离的子系统上。

58. 发明授权

US07629792B2 Correction of misalignment of antennas in a downhole logging tool 有权
标题翻译：校正井下测井工具中天线的未对准
公开(公告)号：US07629792B2
公开(公告)日：2009-12-08
申请号：US11929238
申请日：2007-10-30
申请人： Luis M. Pelegri , Stanislav W. Forgang , Michael S. Crosskno
发明人： Luis M. Pelegri , Stanislav W. Forgang , Michael S. Crosskno
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： Misalignment of the transmitter and receiver coils of an induction logging tool is determined by positioning the logging tool with a coil axially encompassing the transmitter coil and/or the receiver coil, and activating the transmitter at a plurality of rotational angles.
摘要翻译：感应测井工具的发射器和接收器线圈的不对准通过将测井工具定位在轴向包围发射器线圈和/或接收器线圈的线圈上并以多个旋转角度激活发射机来确定。

59. 发明申请

US20090224766A1 CORRECTION OF SENSOR NON-EQUIPOTENTIALITY IN A RESISTIVITY IMAGING DEVICE 有权
标题翻译：电阻成像装置中传感器非等效性的校正
公开(公告)号：US20090224766A1
公开(公告)日：2009-09-10
申请号：US12202687
申请日：2008-09-02
申请人： Tsili Wang , Stanislav W. Forgang
发明人： Tsili Wang , Stanislav W. Forgang
IPC分类号： G01V3/18 , G01R35/00
CPC分类号： G01V3/24
摘要： A method for correcting data from a sensor electrode in a sensor includes determining a potential difference (V) between the sensor electrode and another sensor electrode; from the potential difference (V), determining a by-pass current (Ic) between the sensor electrode and the another sensor electrode; and from the by-pass current (Ic) and a measured current (I) from the sensor electrode, determining a corrected current (J) for the sensor electrode; wherein determining a potential (V1) for the sensor electrode comprises multiplying an intrinsic impedance (Zi1) by the measured current (I). A computer program product and other embodiments are provided.
摘要翻译：一种用于从传感器电极校正数据的方法，包括确定传感器电极和另一传感器电极之间的电位差（V）; 从所述电位差（V）中确定所述传感器电极和所述另一传感器电极之间的旁路电流（Ic）; 并根据传感器电极的旁通电流（Ic）和测量电流（I）确定传感器电极的校正电流（J）; 其中确定传感器电极的电位（V1）包括将本征阻抗（Zi1）乘以测量的电流（I）。提供了计算机程序产品和其他实施例。

60. 发明申请

US20080172198A1 Correction of sensor non-equipotentiality in a resistivity imaging device 有权
公开(公告)号：US20080172198A1
公开(公告)日：2008-07-17
申请号：US11653542
申请日：2007-01-16
申请人： Tsili Wang , Stanislav W. Forgang
发明人： Tsili Wang , Stanislav W. Forgang
IPC分类号： G01R35/00
CPC分类号： G01V3/24
摘要： A method for correcting data from at least one sensor electrode in a sensor includes determining a potential difference (V) between two electrodes; from the potential difference (V), determining a by-pass current (Ic) for the at least one sensor electrode; and from the by-pass current (Ic) and a measured current (I), determining a corrected current (J) for the at least one sensor electrode. A computer program product and other embodiments are provided.

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