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    VIBRATING WIRE VISCOMETERS
    1.
    发明申请
    VIBRATING WIRE VISCOMETERS 有权
    振动线测光仪

    公开(公告)号：US20110030455A1

    公开(公告)日：2011-02-10

    申请号：US12537257

    申请日：2009-08-07

    申请人： NORIYUKI MATSUMOTO ,  SOPHIE NAZIK GODEFROY ,  KAZUMASA KATO ,  GO FUJISAWA

    发明人： NORIYUKI MATSUMOTO ,  SOPHIE NAZIK GODEFROY ,  KAZUMASA KATO ,  GO FUJISAWA

    IPC分类号： G01N11/16

    CPC分类号： G01N11/16

    摘要： Vibrating wire viscometers are disclosed. An example vibrating wire viscometer includes first and second electrically conductive tubes, where the first tube is at least partially inserted into the second tube, and where the first and second tubes are coupled via an electrically insulating bonding agent. The example viscometer further includes first and second electrically conductive pins inserted into respective ones of the first and second tubes, and an electrically conductive wire fastened to the first and second pins to vibrate in a downhole fluid to determine a viscosity of the downhole fluid.

    摘要翻译： 公开了振动丝粘度计。 示例性振动丝粘度计包括第一和第二导电管，其中第一管至少部分地插入第二管中，并且其中第一和第二管经由电绝缘粘合剂耦合。 该示例性粘度计还包括插入到第一和第二管中的相应管中的第一和第二导电针，以及固定到第一和第二销以在井下流体中振动以确定井下流体的粘度的导电线。

    VIBRATING WIRE VISCOMETERS
    2.
    发明申请
    VIBRATING WIRE VISCOMETERS 有权
    振动线测光仪

    公开(公告)号：US20110023587A1

    公开(公告)日：2011-02-03

    申请号：US12534151

    申请日：2009-08-02

    申请人： RAGHU MADHAVAN ,  YU HATORI ,  MAMI NISHIDA ,  SOPHIE NAZIK GODEFROY ,  MICHAEL STANGELAND ,  GO FUJISAWA

    发明人： RAGHU MADHAVAN ,  YU HATORI ,  MAMI NISHIDA ,  SOPHIE NAZIK GODEFROY ,  MICHAEL STANGELAND ,  GO FUJISAWA

    IPC分类号： G01N11/16

    CPC分类号： E21B47/10 ,  G01N11/16 ,  G01N33/2823

    摘要： Vibrating wire viscometers are described. Some example vibrating wire viscometer housings include a flowline through the housing to expose a first wire to a downhole fluid, a cavity in the housing to hold a magnet and to conduct one or more additional wires from the flowline to a signal generator, first and second electrically conductive posts mechanically coupled to the housing to hold the first wire in tension within the flowline, and a seal mechanically coupled to the housing to prevent access to the magnet by the downhole fluid.

    摘要翻译： 描述了振动丝粘度计。 一些示例性振动丝粘度计壳体包括通过壳体的流线，以将第一线暴露于井下流体，壳体中的空腔以保持磁体并且将一条或多条额外的导线从流线引导到信号发生器，第一和第二 导电柱机械联接到壳体以将第一线材保持在流线内的张力，以及机械地联接到壳体的密封件，以防止井下流体进入磁体。

    METHODS AND APPARATUS TO USE MULTIPLE SENSORS TO MEASURE DOWNHOLE FLUID PROPERTIES
    5.
    发明申请
    METHODS AND APPARATUS TO USE MULTIPLE SENSORS TO MEASURE DOWNHOLE FLUID PROPERTIES 有权
    使用多个传感器测量井下流体特性的方法和设备

    公开(公告)号：US20100206063A1

    公开(公告)日：2010-08-19

    申请号：US12371628

    申请日：2009-02-16

    申请人： GO FUJISAWA ,  SOPHIE NAZIK GODEFROY

    发明人： GO FUJISAWA ,  SOPHIE NAZIK GODEFROY

    IPC分类号： E21B49/10

    CPC分类号： E21B49/10

    摘要： Methods and apparatus to use multiple sensors to measure downhole fluid properties are described. An example method of measuring a property of a downhole fluid involves obtaining a plurality of measurements for each of a plurality of sensors. Each of the measurements corresponds to a same property of the downhole fluid, and each of the sensors is differently configured to measure the property. Additionally, the example method involves obtaining a plurality of weighting values, each of which corresponds to one of the sensors. The example method also involves applying the weighting values to the respective measurements obtained by each of the corresponding sensors to generate a weight-corrected measurement for each of the sensors. Further still, the example method involves generating a value representative of a measurement of the property of the downhole fluid based on the weight-corrected measurements and outputting the value representative of the measurement of the property.

    摘要翻译： 描述了使用多个传感器来测量井下流体特性的方法和装置。 测量井下流体性质的示例性方法包括为多个传感器中的每一个获得多个测量。 每个测量对应于井下流体的相同特性，并且每个传感器被不同地配置以测量该性质。 此外，示例性方法涉及获得多个加权值，每个加权值对应于传感器之一。 示例性方法还包括将加权值应用于由每个相应传感器获得的相应测量值，以生成每个传感器的加权校正测量值。 此外，示例性方法包括基于权重校正的测量值生成表示井下流体的属性的值的值，并输出表示该属性的测量的值。

    METHODS AND APPARATUS TO ESTIMATE FLUID COMPONENT VOLUMES
    6.
    发明申请
    METHODS AND APPARATUS TO ESTIMATE FLUID COMPONENT VOLUMES 有权
    估计流体成分体积的方法和装置

    公开(公告)号：US20120304757A1

    公开(公告)日：2012-12-06

    申请号：US13149901

    申请日：2011-06-01

    申请人： GO FUJISAWA ,  ANDREW J. CARNEGIE ,  JACK H. HARFOUSHIAN ,  SAIFON DAUNGKAEW SIRIMONGKOLKITTI ,  OLIVER C. MULLINS

    发明人： GO FUJISAWA ,  ANDREW J. CARNEGIE ,  JACK H. HARFOUSHIAN ,  SAIFON DAUNGKAEW SIRIMONGKOLKITTI ,  OLIVER C. MULLINS

    IPC分类号： E21B47/06 ,  E21B47/00

    CPC分类号： E21B49/081

    摘要： Methods of and apparatus to estimate one or more volumes of one or more components of a fluid in a sample chamber of a downhole tool are described. An example method includes obtaining a sample chamber volume measurement, a flowline volume measurement and a supplemental volume measurement. The example method includes drawing the fluid into the sample chamber until the sample chamber is substantially full and measuring a characteristic of the fluid in the sample chamber at a first time to obtain a first characteristic measurement. The example method also includes adding a supplemental volume corresponding to the supplemental volume measurement to over-pressurize the sample chamber after measuring the characteristic at the first time and measuring the characteristic of the fluid in the sample chamber at a second time to obtain a second characteristic measurement. The second time is after the sample chamber is over-pressurized. In addition, the example method includes calculating a first volume of a first component of the one or more components of the fluid based on the first characteristic measurement, the second characteristic measurement, the sample chamber volume measurement, the flowline volume measurement and the supplemental volume measurement.

    摘要翻译： 描述了用于估计井下工具的样品室中的一种或多种流体的一种或多种组分的方法和装置。 示例性方法包括获得样品室体积测量，流线体积测量和补充体积测量。 该示例性方法包括将流体抽入样品室，直到样品室基本上满，并且在第一次测量样品室中的流体的特性以获得第一特征测量。 该示例方法还包括在第一次测量特征之后添加与补充体积测量相对应的补充体积，以在第二次测量样品室中的特性之后对样品室进行过压以获得第二特性 测量。 样品室第二次过压后。 此外，该示例性方法包括基于第一特征测量，第二特征测量，样本室体积测量，流量线测量和补充体积来计算流体的一个或多个分量的第一分量的第一体积 测量。

    METHODS AND APPARATUS TO DETERMINE A CONCENTRATION OF NITROGEN IN A DOWNHOLE FLUID
    7.
    发明申请
    METHODS AND APPARATUS TO DETERMINE A CONCENTRATION OF NITROGEN IN A DOWNHOLE FLUID 有权
    测定井底液中硝酸浓度的方法和装置

    公开(公告)号：US20090143992A1

    公开(公告)日：2009-06-04

    申请号：US12277262

    申请日：2008-11-24

    申请人： GO FUJISAWA ,  CHEE KIN KHONG ,  OLIVER C. MULLINS

    发明人： GO FUJISAWA ,  CHEE KIN KHONG ,  OLIVER C. MULLINS

    IPC分类号： G01V1/40

    CPC分类号： G01N33/2823

    摘要： Methods and apparatus to determine a concentration of nitrogen in a downhole fluid are described. An example apparatus to determine a concentration of nitrogen in a downhole fluid includes a fluid measurement unit to measure a first fluid composition and a density of at least a hydrocarbon and carbon dioxide in a sample of the downhole fluid. Additionally, the example apparatus includes one or more sensors to measure at least a pressure and a temperature of the sample. Further, the example apparatus includes a processing unit to determine a first theoretical density based on at least the first fluid composition, the temperature, and the pressure the sample. Further still, the example apparatus includes an analyzer to determine a first difference between the density of at least the hydrocarbon and the carbon dioxide in the sample and the first theoretical density. The first difference is associated with a concentration of nitrogen in the sample.

    摘要翻译： 描述了确定井下流体中的氮浓度的方法和装置。 确定井下流体中的氮浓度的示例性装置包括测量井下流体样品中的第一流体组成和至少一种烃和二氧化碳的密度的流体测量单元。 另外，该示例性装置包括用于测量样品的至少压力和温度的一个或多个传感器。 此外，该示例性装置包括处理单元，该处理单元至少基于第一流体组成，温度和样品的压力确定第一理论密度。 此外，示例性装置包括分析器，用于确定样品中至少烃和二氧化碳的密度与第一理论密度之间的第一差异。 第一个差异与样品中的氮浓度有关。

    METHODS AND APPARATUS TO PERFORM DOWNHOLE X-RAY FLUORESCENCE
    8.
    发明申请
    METHODS AND APPARATUS TO PERFORM DOWNHOLE X-RAY FLUORESCENCE 审中-公开
    执行井下X射线荧光的方法和装置

    公开(公告)号：US20100124313A1

    公开(公告)日：2010-05-20

    申请号：US12271921

    申请日：2008-11-16

    申请人： GO FUJISAWA

    发明人： GO FUJISAWA

    IPC分类号： G01N23/223

    CPC分类号： G01V5/12 ,  G01N23/223 ,  G01N2223/076 ,  G01V5/00

    摘要： Example methods and apparatus to perform downhole x-ray fluorescence to detect sulfur in formation fluids are disclosed. A disclosed example downhole x-ray fluorescence apparatus comprises a flowline comprising a flowline wall, an x-ray source, a boron carbide crystal window in the flowline wall to allow x-rays emitted by the x-ray source to pass into a formation fluid in the flowline, and a detector to measure a value representative of a fluorescence of the formation fluid in response to the emitted x-rays.

    摘要翻译： 公开了用于执行井底X射线荧光以检测地层流体中的硫的示例性方法和装置。 公开的示例性井下X射线荧光装置包括流线，其包括流线壁，x射线源，流线壁中的碳化硼晶体窗，以允许x射线源发射的X射线进入地层流体 以及检测器，以响应于所发射的x射线来测量代表地层流体的荧光的值。