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    Multi-Channel Detector Assembly for Downhole Spectroscopy
    4.
    发明申请
    Multi-Channel Detector Assembly for Downhole Spectroscopy 有权
    用于井下光谱的多通道检测器组件

    公开(公告)号：US20110108720A1

    公开(公告)日：2011-05-12

    申请号：US12613808

    申请日：2009-11-06

    申请人： Jess V. Ford ,  Thomas Blankinship ,  Bryan W. Kasperski ,  Margaret C. Waid ,  Sean M. Christian

    发明人： Jess V. Ford ,  Thomas Blankinship ,  Bryan W. Kasperski ,  Margaret C. Waid ,  Sean M. Christian

    IPC分类号： G01V8/10 ,  G01J3/42

    CPC分类号： G01N21/255 ,  E21B49/08 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/027 ,  G01J3/0297 ,  G01J3/10 ,  G01J3/28 ,  G01J3/36 ,  G01J3/433 ,  G01N21/274 ,  G01N2201/0696

    摘要： A multi-channel detector assembly for downhole spectroscopy has a reference detector unit optically coupled to a reference channel of a source and has a measurement detector unit optically coupled to a measurement channel of the source. The reference and measurement detectors detect spectral signals across a spectral range of wavelengths from the reference and measurement channels. Conversion circuitry converts the detected spectral signals into reference signals and measurement signals, and control circuitry processes the reference and measurements signals based on a form of encoding used by the source. Then, the control circuitry can control the output of spectral signals from the source based on the processed signals or scale the measurement signal to correct for source fluctuations or changes in environmental conditions.

    摘要翻译： 用于井下光谱的多通道检测器组件具有光学耦合到源的参考通道的参考检测器单元，并且具有光学耦合到源的测量通道的测量检测器单元。 参考和测量检测器检测来自参考和测量通道的波长范围内的光谱信号。 转换电路将检测到的频谱信号转换为参考信号和测量信号，并且控制电路基于源使用的编码形式处理参考和测量信号。 然后，控制电路可以基于经处理的信号来控制来自源的频谱信号的输出，或者缩放测量信号以校正源波动或环境条件的变化。

    Quaternary Photodetector for Downhole Optical Sensing
    7.
    发明申请
    Quaternary Photodetector for Downhole Optical Sensing 审中-公开
    用于井下光学感测的第四纪光电探测器

    公开(公告)号：US20130175438A9

    公开(公告)日：2013-07-11

    申请号：US13113359

    申请日：2011-05-23

    申请人： Jess V. Ford ,  Bryan W. Kasperski ,  Sean M. Christian ,  Tom Haslett ,  Dave Demmer ,  Joseph Dallas ,  Dave Winick

    发明人： Jess V. Ford ,  Bryan W. Kasperski ,  Sean M. Christian ,  Tom Haslett ,  Dave Demmer ,  Joseph Dallas ,  Dave Winick

    IPC分类号： G01V5/00

    CPC分类号： G01N21/255 ,  G01N21/3577 ,  G01N21/359

    摘要： Detector assembly for downhole spectroscopy includes a near-infra-red quaternary photodiode that can operate at high temperatures without cooling it to the standard operation temperature range of the photodiode. High temperature operation of the photodiode right shifts the detector assembly's responsivity curve to include wavelengths of up to 2400-nm. The photodiode has manageable dark current at temperatures even at 200° C., and it can be packaged using high temperature construction. The photodiode is operated in photovoltaic mode at high temperatures but can be operated at photoconductive mode at lower temperatures. At least partial cooling can be provided above a predetermined temperature.

    摘要翻译： 用于井下光谱的检测器组件包括近红外四分之一光电二极管，其可在高温下操作而不将其冷却至光电二极管的标准工作温度范围。 光电二极管的高温操作使检测器组件的响应曲线偏移，包括高达2400 nm的波长。 光电二极管在即使在200°C的温度下仍具有可管理的暗电流，并且可以使用高温结构进行封装。 光电二极管在高温下以光伏模式工作，但可在较低温度下以光导模式工作。 可以在预定温度以上提供至少部分冷却。

    Downhole gas breakout sensor
    8.
    发明授权
    Downhole gas breakout sensor 有权
    井下气体爆破传感器

    公开(公告)号：US08411262B2

    公开(公告)日：2013-04-02

    申请号：US12894342

    申请日：2010-09-30

    申请人： Jess V. Ford ,  Sean M. Christian ,  Bryan W. Kasperski ,  Tom Haslett ,  Dave Demmer ,  Margaret C. Waid ,  Mike Yuratich

    发明人： Jess V. Ford ,  Sean M. Christian ,  Bryan W. Kasperski ,  Tom Haslett ,  Dave Demmer ,  Margaret C. Waid ,  Mike Yuratich

    IPC分类号： G01N21/41

    CPC分类号： E21B49/08 ,  E21B47/102 ,  G01N21/431 ,  G01N2021/054 ,  G01N2021/434 ,  G01N2021/8405

    摘要： A downhole fluid analysis tool has a housing and a flow passage for downhole fluid. A device disposed in the tool housing relative to the flow passage has a one or more sources, one or more sensing optics, one or more detectors, and control circuitry. The source generates an input signal. The sensing optic has a refractive index (RI) higher than crude oil and other expected constituents. A sensing surface of the optic optically coupled to the source interfaces with a downhole fluid. When the variable RI of the downhole fluid reaches a defined relationship to the optic's RI, the input signal interacting with the sensing surface experiences total internal reflection, and the reflected signal from the sensing surface remains in the sensing optic and reflects to a detector. The control circuitry monitors the detector's response and indicates gas break out if the response is above a threshold.

    摘要翻译： 井下流体分析工具具有用于井下流体的壳体和流动通道。 相对于流动通道设置在工具壳体中的装置具有一个或多个源，一个或多个感测光学器件，一个或多个检测器和控制电路。 源产生一个输入信号。 感测光学元件的折射率（RI）高于原油和其他预期成分。 光学传感表面光学耦合到源接口与井下流体。 当井下流体的变量RI达到与光学元件RI的限定关系时，与感测表面相互作用的输入信号经受全内反射，并且来自感测表面的反射信号保留在感测光学元件中并反射到检测器。 控制电路监控检测器的响应，如果响应高于阈值，则指示气体中断。