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1. 发明授权

US06181138B2 Directional resistivity measurements for azimuthal proximity detection of bed boundaries 有权
标题翻译：床边界方位接近检测的方向电阻率测量
公开(公告)号：US06181138B2
公开(公告)日：2001-01-30
申请号：US09255621
申请日：1999-02-22
申请人： Teruhiko Hagiwara , Haoshi Song
发明人： Teruhiko Hagiwara , Haoshi Song
IPC分类号： G01V330
CPC分类号： E21B47/02216 , E21B47/026 , G01V3/28
摘要： An azimuthally tunable resistivity measurement tool is provided. In one embodiment, the tool comprises a set of three skewed receiver antennas and a transmitter antenna. The three skewed receiver antennas are oriented in equally-spaced azimuthal directions to give them preferential sensitivity in those directions. The transmitter antenna transmits a radio-frequency signal that propagates through the formation surrounding a borehole. The signals from the three receiver antennas can be measured and combined to synthesize the signal that would be received by a virtual antenna oriented in any desired direction. Accordingly, virtual receivers oriented perpendicular to the tool axis and with variable azimuthal orientations can be synthesized. The orientation of such a virtual receiver that has a maximized receive signal amplitude can be used to identify the direction of a nearby bed boundary, and the maximized amplitude can be used to estimate the distance to the boundary. In another embodiment, the tool comprises a set of three skewed transmitter antennas and a receiver antenna. The signal responses of the receiver antenna to each of the transmitter antennas can be measured and combined to synthesize a signal response to a virtual transmitter antenna oriented in any desired direction. In yet another embodiment, the tool comprises a set of skewed transmitter antennas and a set of skewed receiver antennas. The skewed transmitter and receiver antennas work cooperatively to establish virtual transmitter/receiver pairs oriented in any desired azimuthal directions.
摘要翻译：提供了一种方位角可调电阻率测量工具。在一个实施例中，该工具包括一组三个倾斜的接收机天线和发射机天线。三个倾斜的接收机天线以等间隔的方位方向定向，以便在这些方向上给予它们优先的灵敏度。发射机天线发射通过围绕钻孔的地层传播的射频信号。可以测量和组合来自三个接收机天线的信号，以合成将由任何所需方向定向的虚拟天线接收的信号。因此，可以合成垂直于工具轴线并具有可变方位取向的虚拟接收器。具有最大接收信号幅度的这种虚拟接收机的方向可用于识别附近床边界的方向，并且可以使用最大幅度来估计到边界的距离。在另一个实施例中，该工具包括一组三个偏斜的发射器天线和一个接收器天线。可以测量并组合接收机天线到每个发射机天线的信号响应，以便合成对于在任何所需方向上定向的虚拟发射机天线的信号响应。在另一个实施例中，该工具包括一组偏斜的发射机天线和一组倾斜的接收机天线。偏斜的发射机和接收机天线协同工作以建立以任何所需方位方向定向的虚拟发射机/接收机对。

2. 发明申请

US20060038571A1 Method for imaging subterranean formations 失效
公开(公告)号：US20060038571A1
公开(公告)日：2006-02-23
申请号：US11121780
申请日：2005-05-04
申请人： Richard Ostermeier , Teruhiko Hagiwara , Erik Banning
发明人： Richard Ostermeier , Teruhiko Hagiwara , Erik Banning
IPC分类号： G01V3/18
CPC分类号： G01V3/28 , G01V3/38
摘要： A method of imaging a subterranean formation traversed by a wellbore using a tool comprising a transmitter for transmitting electromagnetic signals through the formation and a receiver for detecting response signals. The tool is brought to a first position inside the wellbore, and the transmitter is energized to propagate an electromagnetic signal into the formation. A response signal that has propagated through the formation is detected. A derived quantity for the formation based on the detected response signal for the formation is calculated, and plotted against time. The tool may be moved to at least one other position within the wellbore where the procedure may be repeated to create an image of the formation within the subterranean formation based on the plots.

3. 发明申请

US20050093546A1 System and method for locating an anomaly 失效
标题翻译：用于定位异常的系统和方法
公开(公告)号：US20050093546A1
公开(公告)日：2005-05-05
申请号：US10701735
申请日：2003-11-05
申请人： Erik Banning , Teruhiko Hagiwara , Rich Ostermeier
发明人： Erik Banning , Teruhiko Hagiwara , Rich Ostermeier
IPC分类号： G01V3/30 , G01V3/08 , G01V3/10
CPC分类号： G01V3/30
摘要： A method and a system are provided for allowing determination of a direction and distance from a tool to anomaly in a formation. The apparatus for performing the method includes at least one transmitter and at least one receiver. An embodiment of the method includes transmitting electromagnetic signals from the at least one transmitter through the formation near the wellbore and detecting responses at the at least one receiver induced by the electromagnetic signals. The method may further include determining the direction from the device to the anomaly based on the detected responses. The method may also include calculating at least one of an apparent azimuth angle and an apparent dip angle based on the responses, monitoring the at least one calculated apparent angle over time, and determining the direction to the anomaly after the at least one monitored apparent angle deviates from a zero value.
摘要翻译：提供了一种用于允许确定从工具到地层中的异常的方向和距离的方法和系统。用于执行该方法的装置包括至少一个发射机和至少一个接收机。该方法的一个实施例包括从至少一个发射机通过靠近井眼的地层传输电磁信号，并检测由电磁信号引起的至少一个接收机的响应。该方法还可以包括基于检测到的响应来确定从设备到异常的方向。该方法还可以包括基于响应来计算视在方位角和视在倾斜角度中的至少一个，监测至少一个随时间推移的计算的视角，以及在至少一个监视的视角之后确定到异常的方向偏离零值。

4. 发明授权

US06253155B1 Enhanced vertical resolution for logging tools using walsh-transform deconvolution 失效
标题翻译：使用沃尔什 - 变换去卷积增强测井工具的垂直分辨率
公开(公告)号：US06253155B1
公开(公告)日：2001-06-26
申请号：US09439629
申请日：1999-11-12
申请人： Teruhiko Hagiwara
发明人： Teruhiko Hagiwara
IPC分类号： G06F1900
CPC分类号： G01V1/48 , G06F17/11
摘要： A method of processing logs to enhance vertical resolution is disclosed. In one embodiment the method includes: (a) obtaining a measurement signal from a sensor tool moving through a borehole; (b) determining a Walsh deconvolution filter; and (c) integrating a product of the Walsh deconvolution filter and the measurement signal to obtain an enhanced measurement signal. The Walsh deconvolution filter may be determined by obtaining a set of tool basis functions from the convolution of the tool response function with the set of Walsh basis functions, calculating a tool response correlation matrix, inverting the tool response correlation matrix, and finding the sum F ⁡ ( z ; z ′ ) = ∑ k ⁢ ∑ l ⁢ Y - 1 ⁡ ( k , l ) ⁢ W ⁡ ( k ; z ) ⁢ Y ⁡ ( l ; z ′ ) . This method may be used for continuous or discrete measurement samples. This method may also be applied to two-dimensional, or time-decay, logs to enhance their spatial resolution.
摘要翻译：公开了一种处理日志以增强垂直分辨率的方法。在一个实施例中，该方法包括：（a）从移动穿过钻孔的传感器工具获得测量信号; （b）确定沃尔什反卷积滤波器; 和（c）将沃尔什反卷积滤波器的乘积与测量信号进行积分，以获得增强的测量信号。沃尔什反卷积滤波器可以通过从刀具响应函数与沃尔什基函数的集合获得一组工具基函数来确定，计算刀具响应相关矩阵，反转刀具响应相关矩阵，并找到sumThis方法可用于连续或离散测量样品。该方法也可以应用于二维或时间衰减的日志以增强它们的空间分辨率。

5. 发明授权

US06216090B1 Interferometric processing method to identify bed boundaries 有权
标题翻译：识别床边界的干涉处理方法
公开(公告)号：US06216090B1
公开(公告)日：2001-04-10
申请号：US09394125
申请日：1999-09-10
申请人： Teruhiko Hagiwara
发明人： Teruhiko Hagiwara
IPC分类号： G01V338
CPC分类号： G01V3/30
摘要： A method and apparatus are disclosed for identifying boundaries between thin beds having different resistivities. In one embodiment, the method includes (a) transmitting an oscillatory signal from a first transmitter; (b) determining a first phase difference between signals induced in two receivers by the oscillatory signal from the first transmitter; (c) transmitting an oscillatory signal from a second transmitter; (d) determining a second phase difference between signals induced in the two receivers by the oscillatory signal from the second transmitter; and (e) calculating a interferometric difference between the first and second phase differences. When the transmitters are symmetrically located with respect to the receivers, the interferometric difference exhibits a maximum or minimum value near the boundary location. This low-complexity method provides good boundary detection results when the bed thickness is larger than the transmitter-receiver spacing. In a second method embodiment, the interferometric difference is calculated from the logarithm of the measured attenuation.
摘要翻译：公开了用于识别具有不同电阻率的薄床之间的边界的方法和装置。在一个实施例中，该方法包括（a）从第一发射机发送振荡信号; （b）通过来自第一发射机的振荡信号确定在两个接收机中感应的信号之间的第一相位差; （c）从第二发射机发送振荡信号; （d）通过来自第二发射机的振荡信号确定在两个接收机中感应的信号之间的第二相位差; 和（e）计算第一和第二相位差之间的干涉差。当发射机相对于接收机对称地定位时，干涉测量差值在边界位置附近呈现最大值或最小值。当床厚大于发射机 - 接收机间距时，这种低复杂度方法提供了良好的边界检测结果。在第二方法实施例中，根据所测量的衰减的对数来计算干涉差。

6. 发明授权

US5966013A Determination of horizontal resistivity of formations utilizing induction-type logging measurements in deviated borehole 失效
标题翻译：利用偏心钻孔中感应式测井测量确定地层的水平电阻率
公开(公告)号：US5966013A
公开(公告)日：1999-10-12
申请号：US664011
申请日：1996-06-12
申请人： Teruhiko Hagiwara
发明人： Teruhiko Hagiwara
IPC分类号： G01V3/30 , G01V3/38 , G01V3/18 , G01V1/40 , G01V3/28
CPC分类号： G01V3/38 , G01V3/30
摘要： A method for determining horizontal resistivity of an anisotropic formation and a formation anisotropy response factor with an induction logging tool is claimed. The method utilizes two differing induction type measurements to determine the horizontal resistivity for the formation without knowledge of a borehole dip angle. The differing induction measurements may be different types of measurements or the same type of measurement made under differing operating conditions. The method further discloses a means for determining the vertical resistivity of an anisotropic formation based on the dip angle, the horizontal resistivity and the formation anisotropy response factor.
摘要翻译：一种用感应测井工具确定各向异性地层的水平电阻率和地层各向异性响应因子的方法。该方法利用两种不同的感应类型测量来确定地层的水平电阻率，而不知道钻孔倾角。不同的感应测量可以是不同类型的测量或在不同操作条件下进行的相同类型的测量。该方法还公开了一种用于基于倾角，水平电阻率和地层各向异性响应因子确定各向异性地层的垂直电阻率的装置。

7. 外观设计

USD610974S1 Tread portion of an automobile tire 有权
公开(公告)号：USD610974S1
公开(公告)日：2010-03-02
申请号：US29337804
申请日：2009-05-29
申请人： Teruhiko Hagiwara
设计人： Teruhiko Hagiwara

8. 发明授权

US07425831B2 System and method for locating an anomaly 失效
标题翻译：用于定位异常的系统和方法
公开(公告)号：US07425831B2
公开(公告)日：2008-09-16
申请号：US11270705
申请日：2005-11-09
申请人： Erik Banning , Teruhiko Hagiwara , Rich Ostermeier
发明人： Erik Banning , Teruhiko Hagiwara , Rich Ostermeier
IPC分类号： G01V3/18
CPC分类号： G01V3/30
摘要： A method and a system are provided for allowing determination of a direction and distance from a tool to anomaly in a formation. The apparatus for performing the method includes at least one transmitter and at least one receiver. An embodiment of the method includes transmitting electromagnetic signals from the at least one transmitter through the formation near the wellbore and detecting responses at the at least one receiver induced by the electromagnetic signals. The method may further include determining the direction from the device to the anomaly based on the detected responses. The method may also include calculating at least one of an apparent azimuth angle and an apparent dip angle based on the responses, monitoring the at least one calculated apparent angle over time, and determining the direction to the anomaly after the at least one monitored apparent angle deviates from a zero value.
摘要翻译：提供了一种用于允许确定从工具到地层中的异常的方向和距离的方法和系统。用于执行该方法的装置包括至少一个发射机和至少一个接收机。该方法的一个实施例包括从至少一个发射机通过靠近井眼的地层传输电磁信号，并检测由电磁信号引起的至少一个接收机的响应。该方法还可以包括基于检测到的响应来确定从设备到异常的方向。该方法还可以包括基于响应来计算视在方位角和视在倾斜角度中的至少一个，监测至少一个随时间推移的计算的视角，以及在至少一个监视的视角之后确定到异常的方向偏离零值。

9. 发明授权

US06760666B2 Method for determining anisotropic resistivity and dip angle in an earth formation 失效
标题翻译：确定地层中各向异性电阻率和倾角的方法
公开(公告)号：US06760666B2
公开(公告)日：2004-07-06
申请号：US10308733
申请日：2002-12-03
申请人： Teruhiko Hagiwara
发明人： Teruhiko Hagiwara
IPC分类号： G01V318
CPC分类号： G01V3/28
摘要： A method for determining the anisotropic resistivity properties of a subterranean formation traversed by a borehole utilizing a multi-component induction logging tool. The method utilizes the measured phase and attenuation signals induced by eddy currents in the formation to determine the azimuthal angle and to create a second set of signals based on the measured signals and the azimuthal angle. The anisotropic resistive properties, as well as the dip angle, are then simultaneously derived from the second set of signals by means of minimizing error functions within an inversion model.
摘要翻译：一种利用多分量感应测井仪测定由钻孔穿过的地层的各向异性电阻率特性的方法。该方法利用由地层中的涡流引起的测量相位和衰减信号来确定方位角，并根据测得的信号和方位角产生第二组信号。然后通过最小化反演模型内的误差函数，同时从第二组信号导出各向异性阻力特性以及倾角。

10. 发明授权

US06584407B2 Formation resistivity measurement method that eliminates effects of lateral tool motion 有权
公开(公告)号：US06584407B2
公开(公告)日：2003-06-24
申请号：US09757969
申请日：2001-01-10
申请人： Samuel M. Haugland , Teruhiko Hagiwara , Martin Paulk
发明人： Samuel M. Haugland , Teruhiko Hagiwara , Martin Paulk
IPC分类号： G01V140
CPC分类号： G01V3/28
摘要： A method of compensating for tool motion is disclosed. In one embodiment, the method includes passing a logging tool through a borehole, obtaining a series of tool response measurements, and obtaining a series of tool position measurements associated with the tool response measurements. The tool position measurements preferably indicate the distance between the tool axis and the borehole axis. The tool position measurements are preferably examined to determine if the tool was moving while the tool was making measurements. For measurements made while the tool was moving, the measurement time interval is preferably divided into subintervals each having a corresponding tool position. A formation property (such as resistivity) is estimated, and the expected tool response for each tool position is calculated. The expected tool responses are combined to form a model tool response, that is, the tool response that might be expected for a tool in motion. The model tool response is then compared to the measured tool response. The estimate of the formation property is adjusted and the process is repeated until the model tool response is substantially equal to the measured tool response.

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