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    • 1. 发明申请
    • Downhole Optical Radiometry Tool
    • 井下光学辐射测量工具
    • US20120211650A1
    • 2012-08-23
    • US13502805
    • 2010-11-18
    • Christopher M. JonesStephen A. ZannoniMichael T. PelletierRaj PaiWei ZhangMarina L. Morys
    • Christopher M. JonesStephen A. ZannoniMichael T. PelletierRaj PaiWei ZhangMarina L. Morys
    • G01V8/02
    • E21B47/102E21B49/10
    • Various methods and tools optically analyze downhole fluid properties in situ. Some disclosed downhole optical radiometry tools include a tool body having a sample cell for fluid flow. A light beam passes through the sample cell and a spectral operation unit (SOU) such as a prism, filter, interferometer, or multivariate optical element (MOE). The resulting light provides a signal indicative of one or more properties of the fluid. A sensor configuration using electrically balanced thermopiles offers a high sensitivity over a wide temperature range. Further sensitivity is achieved by modulating the light beam and/or by providing a reference light beam that does not interact with the fluid flow. To provide a wide spectral range, some embodiments include multiple filaments in the light source, each filament having a different emission spectrum. Moreover, some embodiments include a second light source, sample cell, SOU, and detector to provide increased range, flexibility, and reliability.
    • 各种方法和工具可以原位分析井下流体性质。 一些公开的井下光学辐射测量工具包括具有用于流体流动的样品池的工具主体。 光束通过样品池和诸如棱镜,滤光器,干涉仪或多元光学元件(MOE)的光谱操作单元(SOU)。 所得到的光提供指示流体的一个或多个特性的信号。 使用电平衡热电堆的传感器配置在宽温度范围内提供高灵敏度。 通过调制光束和/或通过提供不与流体流相互作用的参考光束来实现进一步的灵敏度。 为了提供宽的光谱范围,一些实施例包括光源中的多个细丝,每个细丝具有不同的发射光谱。 此外,一些实施例包括第二光源,样品池,SOU和检测器,以提供更大的范围,灵活性和可靠性。
    • 3. 发明申请
    • DOWNHOLE SOURCES HAVING ENHANCED IR EMISSION
    • 具有增强红外发射的井底源
    • US20130087723A1
    • 2013-04-11
    • US13510231
    • 2010-06-16
    • Michael T. PelletierChristopher M. JonesMarina L. Morys
    • Michael T. PelletierChristopher M. JonesMarina L. Morys
    • G21K5/00
    • G21K5/00G01N21/314G01N21/35G01N21/3577G01N21/359H01J63/00H01J63/02H01K1/32H01K7/00H01K11/00
    • Light sources are provided with enhanced low-frequency (e.g., near infrared) emission. Some disclosed embodiments include a filament and at least one re-radiator element. The filament heats the re-radiator element to a steady-state temperature that is at least one quarter of the filament's absolute temperature. As disclosed herein, the increased surface area provided by the re-radiator element provides enhanced IR radiation from the light source. Patterning or texturing of the surface can further increase the re-radiator element's surface area. Various shapes such as disks, collars, tubes are illustrated and can be combined to customize the spectral emission profile of the light source. Some specific embodiments employ a coating on the bulb as the re-radiator element. The coating can be positioned to occlude light from the filament or to augment light from the filament, depending on the particular application. The various re-radiator elements can be positioned inside or outside the bulb.
    • 光源具有增强的低频(例如近红外)发射。 一些公开的实施例包括灯丝和至少一个再辐射器元件。 灯丝将再散热器元件加热到至少是灯丝绝对温度四分之一的稳态温度。 如本文所公开的,由再散热器元件提供的增加的表面积提供来自光源的增强的IR辐射。 表面的图案化或纹理化可以进一步增加再散热器元件的表面积。 示出了诸如盘,套环,管的各种形状,并且可以组合以定制光源的光谱发射轮廓。 一些具体实施例在灯泡上采用涂层作为再辐射器元件。 根据具体应用,可以将涂层定位成阻挡来自灯丝的光或者增加灯丝的光。 各种再散热器元件可以位于灯泡内部或外部。