Method and Apparatus for Downhole Spectral Analysis of Fluids
    11.
    发明申请
    Method and Apparatus for Downhole Spectral Analysis of Fluids 有权
    液体井下光谱分析方法与装置

    公开(公告)号:US20070171413A1

    公开(公告)日:2007-07-26

    申请号:US11307171

    申请日:2006-01-26

    IPC分类号: G01J3/28 G01N21/25

    摘要: A fluid analysis system for use downhole comprises an input light signal that is directed through a fluid sample housed in a sample cell. The input light signal may originate from a plurality of light sources. An output light signal from the sample cell is then routed to one or more spectrometers for measurement of the represented wavelengths in the output light signal. The output of the spectrometers is then compared to known values for hydrocarbons typically encountered downhole. This provides insight into the composition of the sample fluid. Additionally, the light from the light sources can be routed directly to the one or more spectrometers to be used in calibration of the system in the high temperature and noise environment downhole.

    摘要翻译: 用于井下的流体分析系统包括被引导通过容纳在样品池中的流体样品的输入光信号。 输入光信号可以来自多个光源。 然后将来自采样单元的输出光信号路由到一个或多个光谱仪,以测量输出光信号中所表示的波长。 然后将光谱仪的输出与通常在井下遇到的烃的已知值进行比较。 这提供了对样品流体的组成的了解。 此外,来自光源的光可以直接路由到一个或多个光谱仪,以在井下的高温和噪声环境中校准系统。

    Method and Apparatus for Downhole Spectral Analysis of Fluids
    15.
    发明申请
    Method and Apparatus for Downhole Spectral Analysis of Fluids 有权
    液体井下光谱分析方法与装置

    公开(公告)号:US20070171412A1

    公开(公告)日:2007-07-26

    申请号:US11307170

    申请日:2006-01-26

    IPC分类号: G01J3/28 G01N21/25

    摘要: A downhole fluid analysis system comprises an input light signal that is directed through a fluid sample housed in a sample cell. The input light signal may originate from a plurality of light sources. A light signal output from the sample cell is then routed to two or more spectrometers for measurement of the represented wavelengths in the output light signal. The output of the spectrometers is then compared to known values for hydrocarbons typically encountered downhole. This provides insight into the composition of the sample fluid. Additionally, the input light can be routed directly to the two or more spectrometers to be used in calibration of the system in the high temperature and noise environment downhole.

    摘要翻译: 井下流体分析系统包括被引导通过容纳在样品池中的流体样品的输入光信号。 输入光信号可以来自多个光源。 然后将从样品池输出的光信号路由到两个或更多个光谱仪,以测量输出光信号中所表示的波长。 然后将光谱仪的输出与通常在井下遇到的烃的已知值进行比较。 这提供了对样品流体的组成的了解。 此外,输入光可以直接路由到两个或更多个光谱仪,以在井下的高温和噪声环境中校准系统。

    Methods and apparatus of downhole fluid analysis
    18.
    发明申请
    Methods and apparatus of downhole fluid analysis 有权
    井下液分析方法与装置

    公开(公告)号:US20060243047A1

    公开(公告)日:2006-11-02

    申请号:US11203932

    申请日:2005-08-15

    IPC分类号: E21B47/08

    摘要: Methods and apparatus for downhole analysis of formation fluids by isolating the fluids from the formation and/or borehole in a pressure and volume control unit that is integrated with a flowline of a fluid analysis module and determining fluid characteristics of the isolated fluids. Parameters of interest may be derived for formation fluids in a static state and undesirable formation fluids may be drained and replaced with formation fluids that are suitable for downhole characterization or surface sample extraction. Isolated formation fluids may be circulated in a loop of the flowline for phase behavior characterization. Real-time analysis of the fluids may be performed at or near downhole conditions.

    摘要翻译: 通过将压力和体积控制单元中的流体从地层和/或钻孔中分离出来并与流体分析模块的流线集成并确定分离流体的流体特性,来对地层流体进行井下分析的方法和装置。 可以为处于静态的地层流体导出感兴趣的参数,并且可以排出不希望的地层流体并用适于井下表征或表面样品提取的地层流体替代。 隔离的地层流体可以在流动管线的环路中循环以进行相位行为表征。 流体的实时分析可以在井下或近井条件下进行。

    Methods and apparatus for mechanically enhancing the sensitivity of transversely loaded fiber optic sensors
    19.
    发明授权
    Methods and apparatus for mechanically enhancing the sensitivity of transversely loaded fiber optic sensors 有权
    用于机械增强横向负载光纤传感器灵敏度的方法和装置

    公开(公告)号:US06218661B1

    公开(公告)日:2001-04-17

    申请号:US09179146

    申请日:1998-10-26

    IPC分类号: G01J104

    摘要: The apparatus of the present invention include an optical fiber with a Bragg grating formed along a portion of its core and a mechanical structure arranged adjacent to the Bragg grating for amplifying transverse strain on the fiber in the vicinity of the grating. In particular, the mechanical structure is designed to convert ambient pressure into transverse strain on the fiber in the vicinity of the grating. The methods of the invention include converting pressure into transverse strain on an optical fiber, amplifying the effect of pressure on the transverse strain, measuring pressure by determining the spacing between spectral locations related to peaks (or minimums) of light reflected from an optical grating subjected to transverse strain, and measuring the temperature of the grating by determining the locations of the spectral locations related to the peaks (or minimums) of light reflected from the grating. According to one embodiment, the mechanical structure includes a piston mounted in a transducer body through which the optical fiber passes.

    摘要翻译: 本发明的装置包括具有沿其芯部的一部分形成的布拉格光栅的光纤和布置于布拉格光栅附近的用于放大光栅附近的光纤上的横向应变的机械结构。 特别地,机械结构被设计成在光栅附近将环境压力转换成光纤上的横向应变。 本发明的方法包括将压力转换成光纤上的横向应变,通过确定与从受光纤光栅所反射的光的峰值(或最小值)相关的光谱位置之间的距离来确定压力对横向应变的影响,测量压力 通过确定与从光栅反射的光的峰值(或最小值)相关的光谱位置的位置来测量光栅的温度。 根据一个实施例,机械结构包括安装在光纤通过的换能器主体中的活塞。

    Microfluidic methods and apparatus to perform in situ chemical detection
    20.
    发明授权
    Microfluidic methods and apparatus to perform in situ chemical detection 有权
    微流体方法和装置进行原位化学检测

    公开(公告)号:US09051821B2

    公开(公告)日:2015-06-09

    申请号:US12334522

    申请日:2008-12-15

    摘要: Example microfluidic methods and apparatus to perform in situ chemical detection are disclosed. A disclosed example downhole apparatus comprises a microfluidic chamber to introduce a microfluidic-scale drop of a reagent into a formation fluid to form a mixed fluid, a flowline to fluidly couple the formation fluid from a geologic formation to the microfluidic chamber, and a detector to measure a property of the mixed fluid, the property representative of a presence of a chemical in the formation fluid.

    摘要翻译: 公开了实施原位化学检测的微流体方法和装置。 所公开的示例性井下装置包括微流体室,以将微流体尺度的试剂液滴引入地层流体中以形成混合流体,将地层流体从地质层流体耦合到微流体室的流线,以及检测器 测量混合流体的性质,代表地层流体中化学物质存在的性质。