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    Method and apparatus for determining the magnitude of components of measurements made from inside a borehole
    21.
    发明授权
    Method and apparatus for determining the magnitude of components of measurements made from inside a borehole 失效
    用于确定钻孔内部测量的部件的大小的方法和装置

    公开(公告)号：US4809236A

    公开(公告)日：1989-02-28

    申请号：US919091

    申请日：1986-10-15

    申请人： Kai Hsu ,  Ralphe Wiggins

    发明人： Kai Hsu ,  Ralphe Wiggins

    IPC分类号： G01V1/48 ,  G01V1/40

    CPC分类号： G01V1/48

    摘要： Techniques are described whereby measurements derived from acoustic investigations made from inside a borehole penetraing an earth formation are factorized into components with high depth resolution. In one embodiment travel times of an acoustic wave such as the compressional is factored into mud travel time and interval travel times through the earth formation. In another embodiment amplitude measurements of an acoustic wave are factored into components such as receiver gain, earth formation attenuation, and coupling effectiveness at the boundary between the borehole and the earth formation. In both embodiments an additional component can be factored out that is a function of transmitter to receiver spacings. A modified Gauss-Seidel iteration technique is described whereby iterations can rapidly converge with less sensitivity to large variations in the measurements. Factorization of receiver gains effectively enables calibration of the receivers during well logging.

    摘要翻译： 描述了技术，其中从穿透地层的钻孔内部进行的声学研究得出的测量被分解成具有高深度分辨率的部件。 在一个实施例中，诸如压缩的声波的行进时间被考虑到通过地层的泥浆行进时间和间隔行进时间。 在另一个实施例中，声波的幅度测量被分解成诸如接收机增益，地球衰减以及在钻孔和地层之间的边界处的耦合效应的组件。 在两个实施例中，可以将附加组件分解为发射机到接收机间隔的函数。 描述了改进的高斯 - 塞德尔迭代技术，其中迭代可以以较小的灵敏度收敛到测量中的大变化。 接收机增益的因式分解有助于在测井期间对接收机进行校准。

    Methods, apparatus and articles of manufacture to process measurements of wires vibrating in fluids
    22.
    发明授权
    Methods, apparatus and articles of manufacture to process measurements of wires vibrating in fluids 有权
    用于处理在流体中振动的线的测量的方法，装置和制品

    公开(公告)号：US08484003B2

    公开(公告)日：2013-07-09

    申请号：US12553967

    申请日：2009-09-03

    申请人： Kai Hsu ,  Christopher Harrison ,  Matthew T. Sullivan ,  Michael Stangeland ,  Anthony Smits ,  Anthony Robert Holmes Goodwin

    发明人： Kai Hsu ,  Christopher Harrison ,  Matthew T. Sullivan ,  Michael Stangeland ,  Anthony Smits ,  Anthony Robert Holmes Goodwin

    IPC分类号： G06G7/48

    CPC分类号： G01V11/002 ,  G01N11/16

    摘要： Example methods, apparatus and articles of manufacture to process measurements of wires vibrating in fluids are disclosed. A disclosed example apparatus includes a downhole assembly and a surface assembly. The downhole assembly including a sensor to measure a waveform representative of a motion of a wire vibrating within a fluid at a downhole location in a wellbore, a waveform modeler to compute a model parameter from the measured waveform, and a first telemetry module to transmit the computed model parameter to a surface location. The surface assembly including a second telemetry module to receive the computed model parameter from the downhole assembly, and a viscosity analyzer to estimate a viscosity of the fluid from the computed model parameter.

    摘要翻译： 公开了用于处理在流体中振动的线的测量的示例性方法，装置和制品。 所公开的示例性设备包括井下组件和表面组件。 所述井下组件包括传感器，用于测量表示在井眼中井下位置处的流体内振动的钢丝的运动的波形，波形建模器，用于根据所测量的波形计算模型参数;以及第一遥测模块， 计算模型参数到表面位置。 所述表面组件包括用于从所述井下组件接收所计算的模型参数的第二遥测模块和从所计算的模型参数估计所述流体粘度的粘度分析器。

    Job monitoring methods and apparatus for logging-while-drilling equipment
    23.
    发明授权
    Job monitoring methods and apparatus for logging-while-drilling equipment 有权
    井下钻井设备的作业监控方法和装置

    公开(公告)号：US08433520B2

    公开(公告)日：2013-04-30

    申请号：US13252899

    申请日：2011-10-04

    申请人： Sylvain Ramshaw ,  Julian J. Pop ,  Peter Swinburne ,  Kai Hsu ,  Steven G. Villareal

    发明人： Sylvain Ramshaw ,  Julian J. Pop ,  Peter Swinburne ,  Kai Hsu ,  Steven G. Villareal

    IPC分类号： E21B47/12

    CPC分类号： E21B49/08 ,  E21B44/00 ,  E21B47/00 ,  E21B47/12

    摘要： Job monitoring methods and apparatus for logging-while-drilling equipment are disclosed. A disclosed example method includes obtaining a fluid associated with an underground geological formation, analyzing the fluid with one or more sensors to form respective ones of sensor outputs, identifying a downhole scenario associated with the fluid based on the sensor outputs, the identifying being performed while the sensors are within the underground geological formation, and selecting a telemetry frame type based on the identified downhole scenario.

    摘要翻译： 披露了采伐钻井设备的作业监控方法和装置。 所公开的示例性方法包括获得与地下地质层相关联的流体，用一个或多个传感器分析流体以形成相应的传感器输出，基于传感器输出识别与流体相关联的井下情景， 传感器位于地下地质层内，并根据识别的井下情景选择遥测框架类型。

    System and methods for well data compression
    24.
    发明授权
    System and methods for well data compression 有权
    井数据压缩的系统和方法

    公开(公告)号：US07805247B2

    公开(公告)日：2010-09-28

    申请号：US11682023

    申请日：2007-03-05

    申请人： Kai Hsu ,  Julian J. Pop

    发明人： Kai Hsu ,  Julian J. Pop

    IPC分类号： E21B47/12

    CPC分类号： G01V11/002 ,  E21B47/12 ,  H03M7/30 ,  H04L67/12

    摘要： Systems and methods in which data compression techniques are utilized to fill a predetermined channel capacity are shown. According to one configuration, event data points within test data are selected for communication via the data communication channel and a data decimator is utilized to identify other data points within the test data to fill or substantially fill the predetermined channel capacity. The foregoing data decimator may employ one or more variables for selecting data for communication, wherein one or more of the variables are preferably adjusted in decimator iterations to select an optimum or otherwise desirable subset of data for communication. Data decimators may additionally or alternatively implement a suitable “growth” function to select the particular data for communication and/or the amount of data communicated.

    摘要翻译： 示出了利用数据压缩技术来填充预定信道容量的系统和方法。 根据一种配置，经由数据通信信道选择测试数据内的事件数据点进行通信，并且使用数据抽取器来识别测试数据内的其他数据点以填充或基本上填充预定信道容量。 上述数据抽取器可以采用用于选择用于通信的数据的一个或多个变量，其中优选地在抽取器迭代中调整一个或多个变量，以选择用于通信的最佳或其他期望的数据子集。 数据抽取器可以附加地或替代地实现适当的“增长”功能来选择用于通信的特定数据和/或传送的数据量。

    METHODS AND APPARATUS TO MONITOR CONTAMINATION LEVELS IN A FORMATION FLUID
    25.
    发明申请
    METHODS AND APPARATUS TO MONITOR CONTAMINATION LEVELS IN A FORMATION FLUID 有权
    监测污染物形成流体的方法和装置

    公开(公告)号：US20090150079A1

    公开(公告)日：2009-06-11

    申请号：US12362602

    申请日：2009-01-30

    申请人： Kai Hsu ,  Peter S. Hegeman ,  Chengli Dong ,  Ricardo Vasques

    发明人： Kai Hsu ,  Peter S. Hegeman ,  Chengli Dong ,  Ricardo Vasques

    IPC分类号： G01V9/00 ,  E21B47/00

    CPC分类号： G01N21/5907 ,  E21B49/10 ,  E21B2049/085 ,  G01N21/8507 ,  G01N21/94 ,  G01N2021/3129

    摘要： Apparatus and methods to monitor contamination levels in a formation fluid are disclosed. An example method involves obtaining first property data indicative of a first fluid property of a formation fluid and second property data indicative of a second fluid property of the formation fluid. A correlation between the first and second property data is generated and third data is fitted to the correlation. A fitting parameter is determined based on the third data indicative of an amount of change of the first property data relative to an amount of change of the second property data.

    摘要翻译： 公开了一种用于监测地层流体中污染水平的装置和方法。 示例性方法包括获得指示地层流体的第一流体特性的第一属性数据和指示地层流体的第二流体性质的第二特性数据。 生成第一和第二属性数据之间的相关性，并且将第三数据拟合到相关性。 基于指示第一属性数据相对于第二属性数据的变化量的变化量的第三数据来确定拟合参数。

    Methods and Apparatus to Monitor Contamination Levels in a Formation Fluid
    27.
    发明申请
    Methods and Apparatus to Monitor Contamination Levels in a Formation Fluid 有权
    监测地层液体污染水平的方法和装置

    公开(公告)号：US20080156088A1

    公开(公告)日：2008-07-03

    申请号：US11764284

    申请日：2007-06-18

    申请人： Kai Hsu ,  Peter S. Hegeman ,  Chengli Dong ,  Ricardo Vasques

    发明人： Kai Hsu ,  Peter S. Hegeman ,  Chengli Dong ,  Ricardo Vasques

    IPC分类号： G01V9/00 ,  G01V8/00

    CPC分类号： G01N21/5907 ,  E21B49/10 ,  E21B2049/085 ,  G01N21/8507 ,  G01N21/94 ,  G01N2021/3129

    摘要： Apparatus and methods to monitor contamination levels in a formation fluid arc disclosed. An example method involves obtaining first property data indicative of a first fluid property of a formation fluid and second property data indicative of a second fluid property of the formation fluid. A correlation between the first and second property data is generated and third data is fitted to the correlation. A fitting parameter is determined based on the third data indicative of an amount of change of the first property data relative to an amount of change of the second property data.

    摘要翻译： 公开了用于监测地层流体中的污染水平的装置和方法。 示例性方法包括获得指示地层流体的第一流体特性的第一属性数据和指示地层流体的第二流体性质的第二特性数据。 生成第一和第二属性数据之间的相关性，并且将第三数据拟合到相关性。 基于指示第一属性数据相对于第二属性数据的变化量的变化量的第三数据来确定拟合参数。

    System and method for determining formation slowness
    28.
    发明授权
    System and method for determining formation slowness 失效
    确定地层缓慢的系统和方法

    公开(公告)号：US07013217B2

    公开(公告)日：2006-03-14

    申请号：US10604034

    申请日：2003-06-23

    申请人： Kai Hsu ,  Dominique Dion

    发明人： Kai Hsu ,  Dominique Dion

    IPC分类号： G01V1/40 ,  G01V1/00

    CPC分类号： G01V1/48

    摘要： The invention provides techniques for calculating velocity from sonic signals with an improved signal to noise ratio, accuracy and certainty of result. Multichannel coherence measures are calculated from sonic transmitter signals and averaged to produce an average coherence measure. The formation slowness is determined from the averaged coherence measure.

    摘要翻译： 本发明提供了用于从声音信号计算速度的技术，其具有改善的信噪比，准确性和结果的确定性。 多声道相干测量由声发射机信号计算并平均以产生平均相干测量。 从平均相干性测量值确定形成缓慢。

    Vibrating wire viscometers
    29.
    发明授权
    Vibrating wire viscometers 有权
    振动丝粘度计

    公开(公告)号：US08166812B2

    公开(公告)日：2012-05-01

    申请号：US12578587

    申请日：2009-10-14

    申请人： Emmanuel Desroques ,  Sophie Nazik Godefroy ,  Anthony Robert Holmes Goodwin ,  Christopher Harrison ,  Kai Hsu ,  Noriyuki Matsumoto

    发明人： Emmanuel Desroques ,  Sophie Nazik Godefroy ,  Anthony Robert Holmes Goodwin ,  Christopher Harrison ,  Kai Hsu ,  Noriyuki Matsumoto

    IPC分类号： E21B49/08 ,  G01N11/10 ,  G01N29/00

    CPC分类号： G01N11/16 ,  E21B2049/085

    摘要： Vibrating wire viscometers are disclosed. An example apparatus to determine the viscosity of a downhole fluid is described, the apparatus including a wire to be immersed in a downhole fluid, to vibrate when an alternating current is applied to the wire within a magnetic field, and to generate an electromotive force when vibrating within the magnetic field, the wire comprising a first resistance. The apparatus further includes a nulling circuit coupled to the wire, wherein the nulling circuit comprises a second resistance that is selectable to be substantially equal to the first resistance, and an analyzer coupled to the wire and the nulling circuit to determine the first resistance, the second resistance, and a viscosity of the downhole fluid based on the first and second resistances, at least one characteristic of the wire, and the electromotive force.

    摘要翻译： 公开了振动丝粘度计。 描述了一种用于确定井下流体的粘度的示例性装置，该装置包括要浸入井下流体中的线，以在交变电流施加到磁场内的线时振动，并产生电动势， 在磁场内振动，线包括第一电阻。 所述装置还包括耦合到所述导线的归零电路，其中所述归零电路包括可选择为基本上等于所述第一电阻的第二电阻，以及耦合到所述导线和所述归零电路以确定所述第一电阻的分析器， 第二阻力和基于第一和第二电阻的井下流体的粘度，线的至少一个特性和电动势。