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    Methods, apparatus and articles of manufacture to process measurements of wires vibrating in fluids
    4.
    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。

    Vibrating wire viscometers
    5.
    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。

    Determining fluid composition downhole from optical spectra
    6.
    发明授权
    Determining fluid composition downhole from optical spectra 有权
    从光谱确定井下的流体组成

    公开(公告)号：US09334729B2

    公开(公告)日：2016-05-10

    申请号：US13644772

    申请日：2012-10-04

    申请人： Kentaro Indo ,  Kai Hsu ,  Julian Pop

    发明人： Kentaro Indo ,  Kai Hsu ,  Julian Pop

    IPC分类号： G01F7/00 ,  E21B49/10

    CPC分类号： E21B49/10 ,  E21B49/08

    摘要： Obtaining in-situ optical spectral data associated with a formation fluid flowing through a downhole formation fluid sampling apparatus, and predicting a parameter of the formation fluid flowing through the downhole formation fluid sampling apparatus based on projection of the obtained spectral data onto a matrix that corresponds to a predominant fluid type of the formation fluid.

    摘要翻译： 获得与流经井下地层流体采样装置的地层流体相关联的原位光谱数据，以及基于所获得的光谱数据投影到相应的矩阵上，预测流经井下地层流体取样装置的地层流体的参数 到地层流体的主要流体类型。

    METHODS AND APPARATUS TO DETERMINE PHASE-CHANGE PRESSURES
    7.
    发明申请
    METHODS AND APPARATUS TO DETERMINE PHASE-CHANGE PRESSURES 有权
    确定相变压力的方法和装置

    公开(公告)号：US20110093200A1

    公开(公告)日：2011-04-21

    申请号：US12582243

    申请日：2009-10-20

    申请人： Kai Hsu ,  Kentaro Indo ,  Peter S. Hegeman ,  Carsten Sonne

    发明人： Kai Hsu ,  Kentaro Indo ,  Peter S. Hegeman ,  Carsten Sonne

    IPC分类号： G01V5/04

    CPC分类号： G01N33/2823 ,  E21B47/10 ,  E21B49/082 ,  G01N7/14

    摘要： Example methods and apparatus to determine phase-change pressures are disclosed. A disclosed example method includes capturing a fluid in a chamber, pressurizing the fluid at a plurality of pressures, measuring a plurality of transmittances of a signal through the fluid at respective ones of the plurality of pressures, computing a first magnitude of a first subset of the plurality of transmittances, computing a second magnitude of a second subset of the plurality of transmittances, comparing the first and second magnitudes to determine a phase-change pressure for the fluid.

    摘要翻译： 公开了用于确定相变压力的示例性方法和装置。 所公开的示例性方法包括捕获腔室中的流体，在多个压力下对流体加压，在多个压力中的相应压力下测量通过流体的信号的多个透射率，计算第一子集的第一子集 所述多个透射率，计算所述多个透射率的第二子集的第二大小，比较所述第一和第二幅度以确定所述流体的相变压力。

    METHODS AND APPARATUS FOR DOWNHOLE CHARACTERIZATION OF EMULSION STABILITY
    8.
    发明申请
    METHODS AND APPARATUS FOR DOWNHOLE CHARACTERIZATION OF EMULSION STABILITY 有权
    用于乳化稳定性的井下特征的方法和装置

    公开(公告)号：US20110083842A1

    公开(公告)日：2011-04-14

    申请号：US12578425

    申请日：2009-10-13

    申请人： Kentaro Indo ,  Kai Hsu

    发明人： Kentaro Indo ,  Kai Hsu

    IPC分类号： E21B47/00 ,  G06F19/00

    CPC分类号： G01N33/2823 ,  E21B49/10 ,  E21B2049/085 ,  G01N21/534

    摘要： A method (and corresponding apparatus) for downhole fluid analysis of petroleum formation fluids. The method includes capturing in a chamber of a downhole tool at least two immiscible formation fluids in a generally segregated state (the fluids including petroleum), activating a fluid mixing means to mix the fluids in the chamber to create an emulsion therefrom, and allowing the emulsified fluids to segregate while measuring light transmittance through the segregating fluids in order to calculate a transition time period based on the light transmittance through the fluids in the chamber. The transition time period is preferably bounded by the time required for the light transmittance values measured by the light detector to reach a baseline light transmittance. The transition time period characterizes the stability of an emulsion formed by the captured fluids. The methods and apparatus can also be used for other fluid testing applications beyond downhole formation fluid testing.

    摘要翻译： 用于石油地层流体的井下流体分析的方法（和相应的装置）。 该方法包括在井下工具的腔室中捕获处于大体分离状态的至少两种不混溶的地层流体（包括石油的流体），激活流体混合装置以混合室中的流体以从其中产生乳液，并允许 乳化流体在通过分离流体测量透光率的同时分离，以便基于通过室中的流体的透光率来计算过渡时间段。 过渡时间段优选地由光检测器测量的光透射率值达到基线透光率所需的时间限制。 过渡时间表征由捕获的流体形成的乳液的稳定性。 该方法和装置也可以用于井下地层流体测试之外的其他流体测试应用。

    Method and apparatus for downhole spectroscopy processing
    10.
    发明申请
    Method and apparatus for downhole spectroscopy processing 有权
    用于井下光谱处理的方法和装置

    公开(公告)号：US20060091307A1

    公开(公告)日：2006-05-04

    申请号：US10541091

    申请日：2003-11-21

    申请人： Roger Griffiths ,  Jack Horkowitz ,  Kai Hsu

    发明人： Roger Griffiths ,  Jack Horkowitz ,  Kai Hsu

    IPC分类号： G01V5/00

    CPC分类号： G01V5/045

    摘要： A method for downhole spectroscopy processing is described. The method includes: obtaining raw spectroscopy data using a downhole tool; processing the raw spectroscopy data using the downhole tool to obtain a downhole processed solution; transmitting the downhole processed solution to a surface processing system; and using the surface processing system to determine lithology information from the downhole processed solution. A downhole tool for processing raw spectroscopy data is also described. The tool includes: a neutron source; at least one detector for detecting the raw spectroscopy data; processing means for processing the raw spectroscopy data to produce a downhole processed solution; and means for transmitting the downhole processed solution to a surface location.

    摘要翻译： 描述了井下光谱处理的方法。 该方法包括：使用井下工具获得原始光谱数据; 使用井下工具处理原始光谱数据以获得井下处理溶液; 将井下处理的溶液传送到表面处理系统; 并使用表面处理系统从井下处理溶液中确定岩性信息。 还描述了用于处理原始光谱数据的井下工具。 该工具包括：中子源; 用于检测原始光谱数据的至少一个检测器; 用于处理原始光谱数据以产生井下处理溶液的处理装置; 以及用于将井下处理的溶液传送到表面位置的装置。