公开(公告)号：US20050275404A1

公开(公告)日：2005-12-15

申请号：US10867598

申请日：2004-06-15

申请人： Juan Sabate ,  Richard Zhang ,  Luis Garces ,  Paul Szczesny ,  Qiming Li ,  William Wirth

发明人： Juan Sabate ,  Richard Zhang ,  Luis Garces ,  Paul Szczesny ,  Qiming Li ,  William Wirth

IPC分类号： G01R33/385 ,  G01V3/00 ,  H03F1/02 ,  H03F3/21 ,  H03F3/217 ,  H03F3/72

CPC分类号： G01R33/3852 ,  H03F1/0277 ,  H03F3/211 ,  H03F3/2173 ,  H03F3/2178 ,  H03F3/72

摘要： A gradient amplifier arrangement is described that comprises a gradient amplifier power stage. The device may be employed to provide a current to a gradient coil, as in a MRI system. The circuitry disclosed includes a series coupling of a first bridge amplifier operating at a first voltage, a second bridge amplifier operating at a second voltage, a third bridge amplifier operating at a third voltage, and a gradient amplifier control stage. The amplifiers may provide output voltages at different levels, and may be switched at different times and frequencies to provide a range of output voltage and current levels.

摘要翻译： 描述了包括梯度放大器功率级的梯度放大器布置。 该装置可用于向梯度线圈提供电流，如在MRI系统中。 所公开的电路包括以第一电压工作的第一桥式放大器，以第二电压工作的第二桥式放大器，以第三电压工作的第三桥式放大器和梯度放大器控制级的串联耦合。 放大器可以提供不同电平的输出电压，并且可以在不同的时间和频率下切换以提供输出电压和电流水平的范围。

公开(公告)号：US20130038463A1

公开(公告)日：2013-02-14

申请号：US13205869

申请日：2011-08-09

申请人： Denis Heliot ,  Nicholas N. Bennett ,  Georgi Kutiev ,  Emmanuel Legandre ,  Roger Griffiths ,  Jean-Michel Denichou ,  Jean Seydoux ,  Qiming Li ,  Koji Ito

发明人： Denis Heliot ,  Nicholas N. Bennett ,  Georgi Kutiev ,  Emmanuel Legandre ,  Roger Griffiths ,  Jean-Michel Denichou ,  Jean Seydoux ,  Qiming Li ,  Koji Ito

IPC分类号： G06T11/20 ,  G01V3/00 ,  G09G5/02

CPC分类号： G01V3/38 ,  G01V3/18

摘要： An interactive display of results obtained from the inversion of logging data is produced by obtaining and inverting the logging data using a Monte-Carlo inversion. An interactive plot having a percentile scale plotted against a location parameter is produced and a particular percentile is selected using the interactive plot. A cross-section plot for the particular percentile using the results of the Monte-Carlo inversion is produced. The particular percentile can be a curve representing a best-fit solution or a polyline representing selected solutions. Background color/shading can be displayed on the interactive plot to indicate user-defined constraints have been applied. Uncertain features can be plotted on a corresponding cross-section display using fading. Clusters of solutions that are substantially equally likely, given the measurements at a particular drill location, can be identified and plotted. A cross-section constructed from the layered models belonging to a particular cluster can be overlaid on another cross-section.

摘要翻译： 通过采用Monte-Carlo反演获得和反转记录数据，产生从记录数据的反演获得的结果的交互式显示。 产生具有相对于位置参数绘制的百分位数比例的交互图，并使用交互图选择特定百分位数。 产生使用蒙特卡罗反演结果的特定百分位数的横截面图。 特定百分位数可以是表示最佳拟合解或代表所选解的折线的曲线。 背景颜色/阴影可以显示在交互式图上，以指示已应用用户定义的约束。 可以使用衰落在相应的横截面显示上绘制不确定的特征。 给定在特定钻头位置的测量值基本上同样可能的解决方案群集可以被识别和绘制。 从属于特定群集的分层模型构建的横截面可以覆盖在另一横截面上。

公开(公告)号：US08129993B2

公开(公告)日：2012-03-06

申请号：US11775435

申请日：2007-07-10

申请人： Jian Yang ,  Qiming Li ,  Jean Seydoux

发明人： Jian Yang ,  Qiming Li ,  Jean Seydoux

IPC分类号： G01V3/10

CPC分类号： G01V3/28

摘要： A method to determine one or more parameters of a formation traversed by a borehole, at least a portion of the formation having substantially parallel boundaries, the method comprising disposing a tool in the borehole, wherein the tool includes a transmitter having a dipole moment at an angle θT with respect to a longitudinal axis of the tool and a receiver having a dipole moment at an angle θR with respect to the longitudinal axis of the tool, the transmitter and receiver comprising a transmitter-receiver pair; transmitting an electromagnetic signal while rotating the tool; receiving the electromagnetic signal to produce a measured signal from the transmitter-receiver pair; and determining the one or more formation parameters for the portion of the formation having substantially parallel boundaries based on the measured signal from the transmitter-receiver pair. A tool disposed in a borehole penetrating a formation, at least a portion of the formation having substantially parallel boundaries, the tool comprising a single transmitter having a transmitter dipole moment at an angle θT with respect to a longitudinal axis of the tool; a single receiver having a receiver dipole moment at an angle θR with respect to the longitudinal axis of the tool; and a rotational position indicator.

摘要翻译： 一种用于确定由钻孔穿过的地层的一个或多个参数的方法，所述地层的至少一部分具有基本上平行的边界，所述方法包括在所述钻孔中布置工具，其中所述工具包括在所述钻孔中具有偶极矩 角度和角度; T相对于工具的纵向轴线;以及接收器，其具有角度角度的偶极矩; R相对于工具的纵向轴线，发射器和接收器包括发射器 - 接收器对; 在旋转刀具的同时传输电磁信号; 接收电磁信号以产生来自发射机 - 接收机对的测量信号; 并且基于来自发射机 - 接收机对的测量信号，确定具有基本平行边界的地层部分的一个或多个地层参数。 一种工具，其设置在钻孔中，穿透地层，所述地层的至少一部分具有基本上平行的边界，所述工具包括单个发射器，所述单个发射器具有相对于所述工具的纵向轴线的角度θ的发射器偶极矩; 具有相对于工具的纵向轴线的角度为角度的接收器偶极矩的单个接收器; 和旋转位置指示器。

公开(公告)号：US07593340B2

公开(公告)日：2009-09-22

申请号：US11809409

申请日：2007-06-01

申请人： Qiming Li ,  Huiying Xu

发明人： Qiming Li ,  Huiying Xu

IPC分类号： G06F15/173 ,  H04L12/24 ,  H04L12/56

CPC分类号： H04L45/04

摘要： A method and system for multi-domain route computation. In the invention, Path Computation Elements (PCEs) are placed in different layers and computation domains between upper and lower layer PCEs are mapped so that a computation task is divided into multiple computation tasks layer by layer and that the multi-domain route computation is finally fulfilled. The invention separates route computation from signaling and runs route computation tasks in parallel. Route establishment is done by signaling after route computation. The present invention may realize route computation based on complex Traffic Engineering (TE) constraints and enable end-to-end diverse route computation. The invention places PCEs in layers, allowing good scalability and high computation efficiency. The present invention is applicable to the Automatically Switched Optical Network (ASON) and the Multi-Protocol Label Switched Network Traffic Engineering (MPLS-TE) network.

摘要翻译： 一种多域路由计算的方法和系统。 在本发明中，将路径计算元素（PCE）放置在不同的层中，映射上层PC层和下层PCE之间的计算域，使得计算任务逐层分为多个计算任务，多域路由计算终于 实现了。 本发明将路由计算与信令分离，并行运行路由计算任务。 路由建立通过路由计算后的信令完成。 本发明可以实现基于复杂流量工程（TE）约束的路由计算，并实现端对端多种路由计算。 本发明将PCE放置在层中，具有良好的可扩展性和高的计算效率。 本发明适用于自动交换光网络（ASON）和多协议标签交换网络流量工程（MPLS-TE）网络。

公开(公告)号：US20080002664A1

公开(公告)日：2008-01-03

申请号：US11809409

申请日：2007-06-01

申请人： Qiming Li ,  Huiying Xu

发明人： Qiming Li ,  Huiying Xu

IPC分类号： H04L12/28

CPC分类号： H04L45/04

摘要： A method and system for multi-domain route computation. In the invention, Path Computation Elements (PCEs) are placed in different layers and computation domains between upper and lower layer PCEs are mapped so that a computation task is divided into multiple computation tasks layer by layer and that the multi-domain route computation is finally fulfilled. The invention separates route computation from signaling and runs route computation tasks in parallel. Route establishment is done by signaling after route computation. The present invention may realize route computation based on complex Traffic Engineering (TE) constraints and enable end-to-end diverse route computation. The invention places PCEs in layers, allowing good scalability and high computation efficiency. The present invention is applicable to the Automatically Switched Optical Network (ASON) and the Multi-Protocol Label Switched Network Traffic Engineering (MPLS-TE) network.

摘要翻译： 一种多域路由计算的方法和系统。 在本发明中，将路径计算元素（PCE）放置在不同的层中，映射上层PC层和下层PCE之间的计算域，使得计算任务逐层分为多个计算任务，多域路由计算终于 实现了。 本发明将路由计算与信令分离，并行运行路由计算任务。 路由建立通过路由计算后的信令完成。 本发明可以实现基于复杂流量工程（TE）约束的路由计算，并实现端对端多种路由计算。 本发明将PCE放置在层中，具有良好的可扩展性和高的计算效率。 本发明适用于自动交换光网络（ASON）和多协议标签交换网络流量工程（MPLS-TE）网络。

公开(公告)号：US20070030167A1

公开(公告)日：2007-02-08

申请号：US11498847

申请日：2006-08-03

申请人： Qiming Li ,  David Santoso ,  Mark Sherman ,  Raghu Madhavan ,  Randall LeBlanc ,  John Thomas ,  Joseph Montero

发明人： Qiming Li ,  David Santoso ,  Mark Sherman ,  Raghu Madhavan ,  Randall LeBlanc ,  John Thomas ,  Joseph Montero

IPC分类号： G01V3/00

CPC分类号： G01V11/002 ,  E21B17/003 ,  E21B17/028 ,  E21B47/12 ,  E21B47/122

摘要： A system for bidirectional communication between the downhole equipment and a processor subsystem at the earth's surface, including: a section of wired drill pipes comprising at least the upper portion of a string of drill pipes, and forming at least a portion of a bidirectional communication link between downhole equipment and the top of the string of drill pipes; a drive string portion of the drill string, mechanically coupleable with the topmost wired drill pipe; a drive mechanism mechanically coupleable with said drive string portion, for rotating the drill string; a first wireless transceiver subsystem mounted on the drive string portion of the drill string, for rotation in conjunction with the drill string; a cable, electrically coupled between the top joint of the topmost wired drill pipe and the first transceiver subsystem; and a second wireless transceiver subsystem coupled with the uphole processor subsystem, the second wireless transceiver subsystem communicating bidirectionally with the first wireless transceiver subsystem.

摘要翻译： 一种用于井下设备与地球表面处理器子系统之间的双向通信的系统，包括：至少包括钻杆串的上部的有线钻杆的一部分，并且形成双向通信链路的至少一部分 井下设备与钻杆之间的顶部; 钻柱的驱动弦部分，与最上面的有线钻杆机械地联接; 驱动机构，其与所述驱动串部分机械地联接，用于旋转所述钻柱; 安装在钻柱的驱动串部分上的第一无线收发器子系统，用于与钻柱一起旋转; 电缆，电耦合在最上面的有线钻杆的顶部接头和第一收发器子系统之间; 以及与所述井上处理器子系统耦合的第二无线收发器子系统，所述第二无线收发器子系统与所述第一无线收发器子系统双向通信。

公开(公告)号：US06832159B2

公开(公告)日：2004-12-14

申请号：US10249612

申请日：2003-04-23

申请人： Jan W. Smits ,  Peter T. Wu ,  Qiming Li ,  Cheng Bing Liu

发明人： Jan W. Smits ,  Peter T. Wu ,  Qiming Li ,  Cheng Bing Liu

IPC分类号： G01V1100

CPC分类号： G01V11/00 ,  G01V1/50

摘要： A method for identifying environmental effects in well log data includes selecting a plurality of models, each of the plurality of models including at least one parameter to be optimized; fitting the models to the well log data by optimizing the at least one parameter, the fitting producing a plurality of optimized models; determining an indicator of goodness of fit for each of the plurality of optimized models; and selecting a model representing a best fit of the well log data based on the indicator.

摘要翻译： 用于识别测井数据中的环境影响的方法包括选择多个模型，所述多个模型中的每个模型包括要优化的至少一个参数; 通过优化所述至少一个参数将所述模型拟合到所述测井数据，所述拟合产生多个优化模型; 确定所述多个优化模型中的每一个的适合度的指标; 并根据该指标选择表示井测井数据的最佳拟合的模型。

公开(公告)号：US06671623B1

公开(公告)日：2003-12-30

申请号：US09619570

申请日：2000-07-19

申请人： Qiming Li

发明人： Qiming Li

IPC分类号： G01V318

CPC分类号： G01V3/20

摘要： Methods and systems are disclosed for characterizing the response of a subsurface resistivity measurement to determine a characteristic of a borehole within the subsurface and/or a characteristic of a formation surrounding the borehole. Generally the methods include obtaining subsurface resistivity measurement data with a well tool disposed within the borehole and fitting the obtained resistivity measurement data to an equivalent electric circuit model to determine the borehole and/or formation characteristic. The circuit model of these embodiments is representative of a response of the well tool to borehole and formation parameters. The systems generally include a well tool and an apparatus adapted to be coupled to the well tool. The apparatus includes means for receiving measurement data generated by the well tool, means for storing model parameters representative of a response of the well tool to borehole and formation properties, and means for comparing the received measurement data to the stored model parameters to determine the borehole and/or formation characteristic. The disclosed equivalent circuit model is characterized by an electric circuit having at least one resistor-in-parallel component.

摘要翻译： 公开了用于表征地下电阻率测量的响应以确定地下井眼的特征和/或围绕钻孔的地层的特征的方法和系统。 通常，所述方法包括利用设置在钻孔内的井工具获得地下电阻率测量数据，并将获得的电阻率测量数据拟合到等效电路模型以确定井眼和/或地层特征。 这些实施例的电路模型代表井工具对钻孔和地层参数的响应。 这些系统通常包括井工具和适于联接到井具的设备。 该装置包括用于接收由井工具产生的测量数据的装置，用于存储表示井工具对钻孔和地层特性的响应的模型参数的装置，以及用于将接收到的测量数据与存储的模型参数进行比较以确定钻孔的装置 和/或地层特征。 所公开的等效电路模型的特征在于具有至少一个并联电阻器的电路。

公开(公告)号：US06405136B1

公开(公告)日：2002-06-11

申请号：US09602860

申请日：2000-06-23

申请人： Qiming Li ,  John Lovell ,  Mark Fredette

发明人： Qiming Li ,  John Lovell ,  Mark Fredette

IPC分类号： G01V318

CPC分类号： E21B47/04 ,  H03M7/30

摘要： A method is disclosed for compressing a frame of data representing parameter values, a time at which each parameter value was recorded, and an orientation of a sensor at the time each parameter value was recorded. Generally the method includes performing a two-dimensional transform on the data in the orientation domain and in a domain related to the recording time. In one embodiment, the method includes calculating a logarithm of each parameter value. In one embodiment, the 2-D transform includes generating a Fourier transform of the logarithm of the parameter values in the azimuthal domain, generating a discrete cosine transform of the transform coefficients in the time domain. This embodiment includes quantizing the coefficients of the Fourier transform and the discrete cosine transform. One embodiment of the method is adapted to transmit resistivity measurements made by an LWD instrument in pressure modulation telemetry so that while-drilling images of a wellbore can be generated. The one embodiment includes encoding the quantized coefficients, error encoding the encoded coefficients, and applying the error encoded coefficients to the pressure modulation telemetry.

摘要翻译： 公开了一种用于压缩表示参数值的数据帧，记录每个参数值的时间以及在记录每个参数值时传感器的方位的方法。 通常，该方法包括对取向域中的数据和与记录时间有关的域中的数据执行二维变换。 在一个实施例中，该方法包括计算每个参数值的对数。 在一个实施例中，2-D变换包括在方位域中产生参数值的对数的傅里叶变换，产生时域中的变换系数的离散余弦变换。 该实施例包括量化傅立叶变换和离散余弦变换的系数。 该方法的一个实施例适用于在压力调制遥测中传输由LWD仪器进行的电阻率测量，从而可以产生钻井图像。 一个实施例包括对量化系数进行编码，对编码系数进行差错编码，以及将误差编码系数应用于压力调制遥测。

公开(公告)号：US09846256B2

公开(公告)日：2017-12-19

申请号：US13205869

申请日：2011-08-09

申请人： Denis Heliot ,  Nicholas N. Bennett ,  Georgi Kutiev ,  Emmanuel Legandre ,  Roger Griffiths ,  Jean-Michel Denichou ,  Jean Seydoux ,  Qiming Li ,  Koji Ito

发明人： Denis Heliot ,  Nicholas N. Bennett ,  Georgi Kutiev ,  Emmanuel Legandre ,  Roger Griffiths ,  Jean-Michel Denichou ,  Jean Seydoux ,  Qiming Li ,  Koji Ito

IPC分类号： G01V3/00 ,  G01V3/38 ,  G01V3/18

CPC分类号： G01V3/38 ,  G01V3/18

摘要： An interactive display of results obtained from the inversion of logging data is produced by obtaining and inverting the logging data using a Monte-Carlo inversion. An interactive plot having a percentile scale plotted against a location parameter is produced and a particular percentile is selected using the interactive plot. A cross-section plot for the particular percentile using the results of the Monte-Carlo inversion is produced. The particular percentile can be a curve representing a best-fit solution or a polyline representing selected solutions. Background color/shading can be displayed on the interactive plot to indicate user-defined constraints have been applied. Uncertain features can be plotted on a corresponding cross-section display using fading. Clusters of solutions that are substantially equally likely, given the measurements at a particular drill location, can be identified and plotted. A cross-section constructed from the layered models belonging to a particular cluster can be overlaid on another cross-section.