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：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

IPC分类号： G01V3/28 ,  G01V3/30 ,  G01V3/18

CPC分类号： G01V3/28 ,  G01V3/30

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。

公开(公告)号：US20050083063A1

公开(公告)日：2005-04-21

申请号：US10710188

申请日：2004-06-24

申请人： Dzevat Omeragic ,  Qiming Li ,  Lawrence Chou ,  Libo Yang ,  Chengbing Liu ,  Jan Smits

发明人： Dzevat Omeragic ,  Qiming Li ,  Lawrence Chou ,  Libo Yang ,  Chengbing Liu ,  Jan Smits

IPC分类号： G01V3/18 ,  G01V3/28 ,  G01V3/08

CPC分类号： G01V3/28

摘要： A method employs an apparatus for generating a directional signal associated with the electromagnetic energy response of a subsurface formation. The method is useful to derive both the strike angle of formation boundary and the relative dip. The true dip and azimuth can be computed from the relative dip information coupled with borehole orientation. Other applications of the method are also described.

摘要翻译： 一种方法采用一种用于产生与地下地层的电磁能量响应相关联的方向信号的装置。 该方法有助于导出地层边界的撞击角和相对倾角。 真实的倾角和方位角可以从与钻孔方向相关的相对倾角信息计算出来。 还描述了该方法的其他应用。

公开(公告)号：US06384605B1

公开(公告)日：2002-05-07

申请号：US09393559

申请日：1999-09-10

申请人： Qiming Li

发明人： Qiming Li

IPC分类号： G01V318

CPC分类号： G01V3/30 ,  E21B47/082

摘要： A method and apparatus for determining the size or diameter of boreholes extending to a wide range of dimensions and/or the resistivity of the surrounding earth formations utilizing a well tool disposed in the borehole. The method involves generating model data representative of the well tool responses to different borehole diameters contrasted with formation and borehole fluid resistivity values, determining the borehole fluid resistivity, transmitting electromagnetic energy into the formation, measuring the energy shed back into the borehole at arbitrary sensor stations on the tool and generating resistivity signal data associated with the measured energy, and matching the signal data and the fluid resistivity against the modeled response data to determine the borehole caliper and/or formation resistivity. The apparatus forms part of a system for calculating a borehole caliper and/or the surrounding formation resistivity. The apparatus being coupled to a multi-sensor well tool and adapted to respond to signal data generated by the tool. The apparatus further adapted to receive the signal data; to receive a borehole fluid parameter; to store modeled well tool response data; and to process the signal data, the fluid parameter, and the modeled data to determine the borehole caliper and/or formation resistivity.

摘要翻译： 一种用于利用设置在钻孔中的井具来确定延伸到宽范围尺寸和/或周围地层的电阻率的钻孔尺寸或直径的方法和装置。 该方法包括生成模型数据，其代表对不同钻孔直径与不同钻孔直径对比的井工具响应的模型数据，与形成和钻孔流体电阻率值相对应，确定井眼流体电阻率，将电磁能传输到地层中，测量在任意传感器站回到井眼的能量 并且产生与所测量的能量相关联的电阻率信号数据，并且根据建模的响应数据匹配信号数据和流体电阻率以确定钻孔厚度和/或地层电阻率。 该装置形成用于计算井眼卡尺和/或周围地层电阻率的系统的一部分。 该装置耦合到多传感器井工具并且适于响应由该工具产生的信号数据。 该装置还适于接收信号数据; 接收井眼流体参数; 存储模型井工具响应数据; 并处理信号数据，流体参数和建模数据，以确定钻孔厚度和/或地层电阻率。

公开(公告)号：US06373254B1

公开(公告)日：2002-04-16

申请号：US09320367

申请日：1999-05-25

申请人： Dominique Dion ,  Mark T. Frey ,  James Stephen Hall ,  Qiming Li ,  Richard A. Rosthal ,  Mark A. Fredette

发明人： Dominique Dion ,  Mark T. Frey ,  James Stephen Hall ,  Qiming Li ,  Richard A. Rosthal ,  Mark A. Fredette

IPC分类号： G01V320

CPC分类号： G01V3/20

摘要： The present invention describes a method and apparatus to control the effect of contact impedance on a formation resistivity measurement during a logging-while-drilling operation. The control of contact impedance is accomplished by maintaining a substantially zero difference in potential between two monitor electrodes positioned on the resistivity logging tool near a current electrode. The tool can employ a ring electrode configuration and/or a button electrode, configuration. The ring electrode configuration incorporates two pairs of ring monitor electrodes on each side of a ring current electrode. The button electrode configuration incorporates. a monitor electrode, surrounded by a current electrode, surrounded by a second monitor electrode. Insulation gaps are positioned between each electrode to separate the electrodes. A variable current is supplied to the current electrode in each configuration to maintain the same potential at each monitor electrode. The effect of contact impedance is controlled through maintaining the same potential at each monitor electrode.

摘要翻译： 本发明描述了一种在钻井操作期间控制接触阻抗对地层电阻率测量的影响的方法和装置。 接触阻抗的控制通过在位于当前电极附近的电阻率测井工具上的两个监视电极之间保持基本上零电位差来实现。 该工具可以采用环形电极配置和/或按钮电极的配置。 环形电极结构在环形电流电极的每一侧都包含两对环形监测电极。 按钮电极配置结合。 由电流电极包围的监视电极，被第二监视电极包围。 绝缘间隙位于每个电极之间以分离电极。 在每个配置中，向当前电极提供可变电流以在每个监视器电极处保持相同的电位。 通过在每个监测电极处保持相同的电位来控制接触阻抗的影响。

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.

公开(公告)号：US08841913B2

公开(公告)日：2014-09-23

申请号：US13412942

申请日：2012-03-06

申请人： Jian Yang ,  Qiming Li ,  Jean Seydoux

发明人： Jian Yang ,  Qiming Li ,  Jean Seydoux

IPC分类号： G01V3/10 ,  G01V3/28

CPC分类号： G01V3/28

摘要： A method and a downhole tool determine one or more parameters of a formation traversed by a borehole where at least a portion of the formation has substantially parallel boundaries. A tool is disposed in the borehole that includes a transmitter having a dipole moment at an angle θT with respect to a longitudinal axis of the tool, a receiver having a dipole moment at an angle θR with respect to the longitudinal axis of the tool and a rotational position indicator. The transmitter-receiver pair transmits an electromagnetic signal while rotating the tool, receives the electromagnetic signal to produce a measured signal, and determine(s) the formation parameters for the portion of the formation having substantially parallel boundaries based on the measured signal.

摘要翻译： 方法和井下工具确定由钻孔穿过的地层的一个或多个参数，其中地层的至少一部分具有基本上平行的边界。 一种工具设置在钻孔中，该工具包括具有角度角度的偶极矩的发射器;相对于工具的纵向轴线的T;具有角度角度的偶极矩的接收器;相对于 工具和旋转位置指示器。 发射机 - 接收机对在旋转工具的同时传输电磁信号，接收电磁信号以产生测量信号，并且基于测量的信号确定具有基本上平行边界的地层部分的地层参数。

公开(公告)号：US08629782B2

公开(公告)日：2014-01-14

申请号：US12538961

申请日：2009-08-11

申请人： Qiming Li ,  Desheng Zhang ,  Yi Zhang ,  Lili Zhong ,  Tang Xueyan ,  Brian Clark

发明人： Qiming Li ,  Desheng Zhang ,  Yi Zhang ,  Lili Zhong ,  Tang Xueyan ,  Brian Clark

IPC分类号： G01V3/00 ,  E21B47/14 ,  G01V1/40 ,  E21B47/18

CPC分类号： G01V3/18 ,  E21B47/12 ,  E21B47/122 ,  E21B47/18 ,  G01V11/002

摘要： A system and a method use dual telemetry for tools located in a wellbore. A first telemetry system and a second telemetry system coordinate communication with the tools. Both the first telemetry system and the second telemetry system may transmit data regarding the tools and/or drilling conditions from the tools to a surface location simultaneously. The first telemetry system or the second telemetry system may communicate with the surface location if communication using the other telemetry system is interrupted. The first telemetry system and the second telemetry system may have a master/slave relationship so that data requests from a specific telemetry system do not interfere with data requests from the other telemetry system.

摘要翻译： 一种系统和方法使用双重遥测来测量位于井眼中的工具。 第一遥测系统和第二遥测系统与工具协调通信。 第一遥测系统和第二遥测系统都可以将工具和/或钻井条件的数据从工具传送到地面位置。 如果使用其他遥测系统的通信中断，第一遥测系统或第二遥测系统可以与地面位置通信。 第一遥测系统和第二遥测系统可以具有主/从关系，使得来自特定遥测系统的数据请求不会干扰来自另一遥测系统的数据请求。

公开(公告)号：US08466683B2

公开(公告)日：2013-06-18

申请号：US12639123

申请日：2009-12-16

申请人： Emmanuel Legendre ,  Jean Seydoux ,  Reza Taherian ,  Jian Yang ,  Qiming Li

发明人： Emmanuel Legendre ,  Jean Seydoux ,  Reza Taherian ,  Jian Yang ,  Qiming Li

IPC分类号： G01V3/18

CPC分类号： G01V3/28

摘要： A system and method to determine earth formation properties by positioning a logging tool within a wellbore in the earth formation, the logging tool having a tool rotation axis and a first, a second, and a third tilted transmitter coil, and a tilted receiver coil; rotating the logging tool about the tool rotation axis; energizing each transmitter coil; measuring a coupling signal between each transmitter coil and the receiver coil for a plurality of angles of rotation; determining a coupling tensor; and determining the earth formation properties using the coupling tensor.

摘要翻译： 一种用于通过将测井工具放置在地层中的井筒内，测井工具具有工具旋转轴和第一，第二和第三倾斜发射器线圈以及倾斜的接收器线圈来确定地球形成特性的系统和方法; 围绕刀具旋转轴旋转测井工具; 为每个发射器线圈通电; 测量多个旋转角度的每个发射器线圈和接收器线圈之间的耦合信号; 确定耦合张量; 并使用耦合张量来确定地层的形成特性。

公开(公告)号：US08433518B2

公开(公告)日：2013-04-30

申请号：US12888232

申请日：2010-09-22

申请人： Dzevat Omeragic ,  Keli Sun ,  Qiming Li ,  Tarek Habashy

发明人： Dzevat Omeragic ,  Keli Sun ,  Qiming Li ,  Tarek Habashy

IPC分类号： G01V1/40 ,  G01V3/10 ,  G06G7/48

CPC分类号： G01V3/20 ,  G01V3/28

摘要： A method is provided for determining formation resistivity, anisotropy and dip from wellbore measurements includes moving a well logging instrument through subsurface formations. The instrument includes longitudinal magnetic dipoles and at least one of tilted and transverse magnetic dipoles. Formation layer boundaries and horizontal resistivities of the formation layers are determined from longitudinal magnetic dipole measurements. Vertical resistivities of the formation layers are determined by inversion of anisotropy sensitive measurements. Improved vertical resistivities of the formation layers and dips are determined by inverting symmetrized and anti-symmetrized measurements. Improved vertical resistivities, improved boundaries and improved dips are determined by inversion of the all dipole measurements. Improved horizontal resistivities, further improved layer boundaries and further improved dips are determined by inversion of all dipole measurements.

摘要翻译： 提供了一种用于确定井眼测量的地层电阻率，各向异性和倾角的方法，包括通过地下地层移动测井仪器。 仪器包括纵向磁偶极子和倾斜和横向磁偶极子中的至少一个。 由纵向磁偶极子测量确定地层的形成层边界和水平电阻率。 通过各向异性敏感测量的反演确定形成层的垂直电阻率。 通过反转对称和反对称测量来确定形成层和浸渍层的垂直电阻率的改善。 通过所有偶极子测量的反演来确定改善的垂直电阻率，改善的边界和改善的倾角。 通过所有偶极子测量的反演来确定改进的水平电阻率，进一步改善的层边界和进一步改善的下降。