Downhole Gas Breakout Sensor
    1.
    发明申请
    Downhole Gas Breakout Sensor 有权
    井下气体爆破传感器

    公开(公告)号:US20120081699A1

    公开(公告)日:2012-04-05

    申请号:US12894342

    申请日:2010-09-30

    IPC分类号: G01N21/41

    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。

    Downhole gas breakout sensor
    2.
    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

    IPC分类号: G01N21/41

    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。

    Quaternary Photodetector for Downhole Optical Sensing
    3.
    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

    IPC分类号: G01V5/00

    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。

    Quaternary Photodetector for Downhole Optical Sensing
    4.
    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:US20120298850A1

    公开(公告)日:2012-11-29

    申请号:US13113359

    申请日:2011-05-23

    IPC分类号: G01V5/00

    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。