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1.发明申请ATTENUATION OF UNWANTED ACOUSTIC SIGNALS BY SEMBLANCE CRITERION MODIFICATION 审中-公开通过SEMBLANCE标准修改减少无声信号公开(公告)号：US20100177594A1
公开(公告)日：2010-07-15
申请号：US12352848
申请日：2009-01-13
申请人： Sandip Bose , Alain Dumont , Henri Pierre Valero
发明人： Sandip Bose , Alain Dumont , Henri Pierre Valero
IPC分类号： G01V1/28
CPC分类号： G01V1/48
摘要： Methods and related systems are described for modified semblance criterions based on the approach of thresholding the signal energy. A first criterion is derived by posing the problem as that of detecting a signal with energy (or amplitude) greater than the specified threshold and deriving the generalized likelihood ratio test statistic. A second criterion is derived using the same method by posing the problem as that of rejecting any signal with energy (or amplitude) below a specified threshold and detecting it if its energy is above another threshold greater than or equal to the first. These appropriately modify the original semblance criterion which is shown to be equivalent to the GLRT test statistic in the absence of any threshold on the signal amplitude. In addition simpler modifications are also described. Tests on synthetic data illustrate the effectiveness of all these modifications which perform comparably well at suppressing unwanted arrivals while accurately processing the desired signals.
摘要翻译： 基于阈值信号能量的方法描述了修改的相似标准的方法和相关系统。 通过将问题作为检测具有大于指定阈值的能量（或幅度）的信号的问题得出第一标准，并导出广义似然比检验统计量。 通过将问题作为拒绝具有低于指定阈值的能量（或振幅）的任何信号的问题，通过使用相同的方法导出第二准则，并且如果其能量高于大于或等于第一阈值的阈值，则检测它。 这些适当地修改了在信号幅度没有任何阈值的情况下显示为等同于GLRT检验统计量的原始相似标准。 另外还描述了更简单的修改。 对合成数据的测试说明了所有这些修改的有效性，其在精确地处理期望的信号的同时抑制不期望的到达情况下相当好地执行。
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2.发明授权公开(公告)号：US08902701B2
公开(公告)日：2014-12-02
申请号：US12634623
申请日：2009-12-09
申请人： Toshihiro Kinoshita , Alain Dumont
发明人： Toshihiro Kinoshita , Alain Dumont
CPC分类号： G01V1/48 , G01V2210/626
摘要： Example methods, apparatus and articles of manufacture to determine anisotropy indicators for subterranean formations are disclosed. A disclosed example method includes computing a first shear slowness value from measured quadrupole waves, computing a second shear slowness value from measured Stoneley waves, and comparing the first and second shear slowness values to determine an anisotropy indicator representative of anisotropy of a subterranean formation.
摘要翻译： 公开了用于确定地下地层的各向异性指标的示例性方法，装置和制品。 所公开的示例性方法包括从测量的四极波计算第一剪切慢度值，从测量的斯通利波计算第二剪切慢度值，以及比较第一和第二剪切慢度值以确定代表地层的各向异性的各向异性指示符。
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公开(公告)号：US07382135B2
公开(公告)日：2008-06-03
申请号：US10709212
申请日：2004-04-21
申请人： Qiming Li , Lawrence Chou , Dzevat Omeragic , Libo Yang , Alain Dumont , Lingyun Hu
发明人： Qiming Li , Lawrence Chou , Dzevat Omeragic , Libo Yang , Alain Dumont , Lingyun Hu
IPC分类号： G01B3/08
摘要： A novel on-the-fly data processing technique is useful for extracting signals from the azimuthal variation of the directional measurements acquired by a logging tool within a borehole. The relevant boundary, anisotropy and fracture signals are extracted from the formation response through fitting of the azimuthal variation of the measured voltages to some sinusoidal functions. The orientation of the bedding is also obtained as a result. The extracted directional signals are useful for obtaining boundary distances and making geosteering decisions. Two techniques involving inversion and cross-plotting may be employed, depending on the nature of the boundary. A Graphical User Interface (GUI) is part of a system to facilitate flexible definition of inversion objectives, for improving the inversion results, and for visualization of the formation model as well as inversion measurements.
摘要翻译： 一种新颖的实时数据处理技术可用于从钻孔内的测井工具获取的方向测量的方位角变化中提取信号。 通过将测量电压的方位角变化拟合到某些正弦函数，从形成响应中提取相关边界，各向异性和断裂信号。 因此也获得了床上用品的取向。 提取的方向信号对于获得边界距离和进行地理转向决定是有用的。 取决于边界的性质，可以采用涉及倒置和交叉绘图的两种技术。 图形用户界面（GUI）是系统的一部分，以便于灵活地定义反演目标，改善反演结果，以及形成模型的可视化以及反演测量。
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公开(公告)号：US20050140373A1
公开(公告)日：2005-06-30
申请号：US10709212
申请日：2004-04-21
申请人： Qiming Li , Lawrence Chou , Dzevat Omeragic , Libo Yang , Alain Dumont , Lingyun Hu
发明人： Qiming Li , Lawrence Chou , Dzevat Omeragic , Libo Yang , Alain Dumont , Lingyun Hu
摘要： A novel on-the-fly data processing technique is useful for extracting signals from the azimuthal variation of the directional measurements acquired by a logging tool within a borehole. The relevant boundary, anisotropy and fracture signals are extracted from the formation response through fitting of the azimuthal variation of the measured voltages to some sinusoidal functions. The orientation of the bedding is also obtained as a result. The extracted directional signals are useful for obtaining boundary distances and making geosteering decisions. Two techniques involving inversion and cross-plotting may be employed, depending on the nature of the boundary. A Graphical User Interface (GUI) is part of a system to facilitate flexible definition of inversion objectives, for improving the inversion results, and for visualization of the formation model as well as inversion measurements.
摘要翻译： 一种新颖的实时数据处理技术可用于从钻孔内的测井工具获取的方向测量的方位角变化中提取信号。 通过将测量电压的方位角变化拟合到某些正弦函数，从形成响应中提取相关边界，各向异性和断裂信号。 因此也获得了床上用品的取向。 提取的方向信号对于获得边界距离和进行地理转向决定是有用的。 取决于边界的性质，可以采用涉及倒置和交叉绘图的两种技术。 图形用户界面（GUI）是系统的一部分，以便于灵活地定义反演目标，改善反演结果，以及形成模型的可视化以及反演测量。
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5.发明授权公开(公告)号：US06894499B2
公开(公告)日：2005-05-17
申请号：US10363838
申请日：2001-09-05
申请人： Alain Dumont , Nicolas Renoux , Philippe Salamitou
发明人： Alain Dumont , Nicolas Renoux , Philippe Salamitou
CPC分类号： G01V3/20
摘要： The invention relates to a device for measuring an electrical parameter through electrically-conductive casing, said device including a current injection electrode (3) and a measurement electrode (7) on one side of the wall of the casing (1). According to the invention, the injection electrode (3) is associated via a first magnetic coupler (4) with a current source (2) and the measurement electrode (7) is associated via a second magnetic coupler (6) with a measurement device (5) situated on the other side of the wall.
摘要翻译： 本发明涉及一种用于通过导电壳体测量电参数的装置，所述装置包括在壳体（1）的壁的一侧上的电流注入电极（3）和测量电极（7）。 根据本发明，注射电极（3）经由第一磁耦合器（4）与电流源（2）相关联，并且测量电极（7）经由第二磁耦合器（6）与测量装置（ 5）位于墙的另一侧。
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公开(公告)号：US09823375B2
公开(公告)日：2017-11-21
申请号：US13499909
申请日：2010-10-26
IPC分类号： G01V1/44
CPC分类号： G01V1/44
摘要： Apparatus for acoustic measurement in a downhole environment to enable high quality measurements to be obtained in difficult logging conditions are disclosed. An example apparatus includes a downhole tool having a body with a plurality of transmitters located on the body. A receiver is located on the body a distance from the transmitters and an attenuator section is integrally formed on the body between at least one transmitter and the receiver.
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公开(公告)号：US08553493B2
公开(公告)日：2013-10-08
申请号：US11964736
申请日：2007-12-27
IPC分类号： G01V1/40
CPC分类号： G01V1/50
摘要： A method for estimating formation permeability from measured sonic wave Stoneley attributes and particularly the Stoneley attributes of slowness (DTst) and attenuation (ATTst), taking into consideration the existence of a heavy walled drill collar at the end of the drill string and the relative lack of borehole mud cake during a drilling operation. In the subject LWD application a real-time qualitative indication for fracture and permeable zones is estimated from Stoneley measurements. This information is useful to a driller to make important timely decisions about drilling and completion programs.
摘要翻译： 考虑到钻柱末端存在厚壁钻铤，相对缺乏的方法，用于估计测量声波斯通利属性，特别是斯通利度量（DTst）和衰减（ATTst）的地层渗透率 在钻井作业期间钻孔泥饼。 在主题LWD应用中，从Stoneley测量估计了断裂和渗透区域的实时定性指示。 这些信息对于钻井者对钻井和完井计划作出重要的及时决定是有用的。
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公开(公告)号：US07367392B2
公开(公告)日：2008-05-06
申请号：US10904809
申请日：2004-11-30
申请人： Khanh Duong , Jean Pierre Masson , Fernando Garcia-Osuna , Harold Pfutzner , Alain Dumont , Tetsuya Tanaka
发明人： Khanh Duong , Jean Pierre Masson , Fernando Garcia-Osuna , Harold Pfutzner , Alain Dumont , Tetsuya Tanaka
CPC分类号： E21B47/01
摘要： Wellbore apparatus including an elongated tubular adapted for disposal within the wellbore. The tubular having an elongated recess formed on its exterior surface along the longitudinal axis. The recess is adapted to accept and house a component therein. A shield disposed within the recess and adapted to slide to a selected position therein, covering a housed component. The sliding shield and housed component are retained within the recess by a retainer system using minimal fasteners.
摘要翻译： 井眼设备包括适于在井筒内处理的细长管状物。 该管状物具有沿其纵向轴线形成在其外表面上的细长凹部。 该凹槽适于在其中接纳和容纳部件。 设置在所述凹部内并适于滑动到其中的选定位置的屏蔽物，覆盖被容纳的部件。 滑动屏蔽和容纳部件通过使用最小紧固件的保持器系统保持在凹部内。
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公开(公告)号：US07317990B2
公开(公告)日：2008-01-08
申请号：US11163209
申请日：2005-10-10
申请人： Anshuman Sinha , Alain Dumont
发明人： Anshuman Sinha , Alain Dumont
IPC分类号： G01V11/00
CPC分类号： G06F9/547
摘要： A method for distributed processing in a subsurface environment includes running a local program on a local computation unit, wherein the local program is configured to call a remote procedure to be executed by a remote computation unit, wherein the local computation unit and the remote computation unit are disposed in a subsurface environment; initiating a remote procedure call; executing the remote procedure on the remote computation unit, while the local computation unit performs another operation; and returning a result from the executing the remote procedure to the local computation unit.
摘要翻译： 一种在地下环境中进行分布式处理的方法，包括在本地计算单元上运行本地程序，其中，本地程序被配置为调用由远程计算单元执行的远程过程，其中本地计算单元和远程计算单元 处于地下环境中; 启动远程过程调用; 在远程计算单元执行远程过程，而本地计算单元执行另一操作; 并将执行远程过程的结果返回到本地计算单元。
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公开(公告)号：US20050150655A1
公开(公告)日：2005-07-14
申请号：US10904809
申请日：2004-11-30
申请人： Khanh Duong , Jean Masson , Fernando Garcia-Osuna , Harold Pfutzner , Alain Dumont , Tetsuya Tanaka
发明人： Khanh Duong , Jean Masson , Fernando Garcia-Osuna , Harold Pfutzner , Alain Dumont , Tetsuya Tanaka
CPC分类号： E21B47/01
摘要： Wellbore apparatus including an elongated tubular adapted for disposal within the wellbore. The tubular having an elongated recess formed on its exterior surface along the longitudinal axis. The recess is adapted to accept and house a component therein. A shield disposed within the recess and adapted to slide to a selected position therein, covering a housed component. The sliding shield and housed component are retained within the recess by a retainer system using minimal fasteners.
摘要翻译： 井眼设备包括适于在井筒内处理的细长管状物。 该管状物具有沿其纵向轴线形成在其外表面上的细长凹部。 该凹槽适于在其中接纳和容纳部件。 设置在所述凹部内并适于滑动到其中的选定位置的屏蔽物，覆盖被容纳的部件。 滑动屏蔽和容纳部件通过使用最小紧固件的保持器系统保持在凹部内。
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