Method and apparatus for a high resolution downhole spectrometer
    271.
    发明申请
    Method and apparatus for a high resolution downhole spectrometer 有权
    高分辨率井下光谱仪的方法和装置

    公开(公告)号:US20050018192A1

    公开(公告)日:2005-01-27

    申请号:US10827948

    申请日:2004-04-20

    Abstract: The present invention provides a simple, robust, and versatile high-resolution spectrometer that is suitable for downhole use. The present invention provides a method and apparatus incorporating a spinning, oscillating or stepping optical interference filter to change the angle at which light passes through the filters after passing through a sample under analysis downhole. As each filter is tilted, the color or wavelength of light passed by the filter changes. Black plates are placed between the filters to isolate each filter's photodiode. The spectrometer of the present invention is suitable for use with a wire line formation tester, such as the Baker Atlas Reservation Characterization Instrument to provide supplemental analysis and monitoring of sample clean up. The present invention is also suitable for deployment in a monitoring while drilling environment. The present invention provides a high resolution spectometer which enables quantification of a crude oil's percentage of aromatics, olefins, and saturates to estimate a sample's gas oil ratio (GOR). Gases such as CO2 are also detectable. The percentage of oil-based mud filtrate contamination in a crude oil sample can be estimated with the present invention by using a suitable training set and chemometrics, a neural network, or other type of correlation method.

    Abstract translation: 本发明提供了一种适用于井下使用的简单,坚固且通用的高分辨率光谱仪。 本发明提供了一种包括旋转,振荡或步进光学干涉滤光器的方法和装置,以改变在通过井下分析的样品之后光通过滤光器的角度。 当每个滤光片倾斜时,由滤光片传出的光线的颜色或波长发生变化。 过滤器之间放置黑色板,以隔离每个过滤器的光电二极管。 本发明的光谱仪适合与线形成测试仪一起使用,例如Baker Atlas Reservation Characterization Instrument,以提供对样品清理的补充分析和监测。 本发明也适用于在钻井环境中进行监视。 本发明提供了一种高分辨率光谱仪,其能够定量原油的芳烃,烯烃和饱和物的百分比,以估计样品的瓦斯油比(GOR)。 气体如二氧化碳也是可以检测的。 通过使用合适的训练集和化学计量学,神经网络或其他类型的相关方法,可以用本发明估算原油样品中油基泥浆滤液污染物的百分比。

    Method and apparatus for analyzing the phases of a multi-phase mixture
    272.
    发明授权
    Method and apparatus for analyzing the phases of a multi-phase mixture 失效
    用于分析多相混合物相的方法和装置

    公开(公告)号:US5783826A

    公开(公告)日:1998-07-21

    申请号:US737575

    申请日:1996-11-15

    Applicant: Gerard Meunier

    Inventor: Gerard Meunier

    CPC classification number: G01N21/532

    Abstract: An apparatus and method of analyzing phases of a multi-phase mixture allows an analysis of a mixture that has great turbidity or is opaque. An emission device emits electromagnetic radiation in a direction of a measurement cell. The electromagnetic radiation is back scattered by the mixture and is detected by a primary detection device. A secondary detection device may detect electromagnetic radiation that is transmitted but is not back scattered by the mixture. A moving device displaces the primary detection device in order to carry out a plurality of detections at a predetermined step over the length of the measurement cell. The scanning of the cell allows one to obtain a cycle of measurements that produces a phase profile of the mixture.

    Abstract translation: PCT No.PCT / FR95 / 00599 Sec。 371日期1996年11月15日 102(e)日期1996年11月15日PCT 1995年5月9日PCT PCT。 出版物WO95 / 31712 PCT 日期:1995年11月23日。分析多相混合相的装置和方法可以分析浊度大或不透明的混合物。 发射装置沿测量单元的方向发射电磁辐射。 电磁辐射由混合物反向散射,并由主要检测装置检测。 二次检测装置可以检测被传输但不被混合物背散射的电磁辐射。 移动装置使主检测装置移位,以便在测量单元的长度上以预定步长执行多个检测。 单元的扫描允许获得产生混合物的相位曲线的测量循环。

    Rapid-scanning monochromator with moving intermediate slit
    274.
    发明授权
    Rapid-scanning monochromator with moving intermediate slit 失效
    具有移动中间狭缝的快速扫描单色仪

    公开(公告)号:US5285254A

    公开(公告)日:1994-02-08

    申请号:US858899

    申请日:1992-03-27

    Inventor: Richard J. De Sa

    Abstract: The present invention is a scanning monochromator for producing a light beam which rapidly and repetitively varies in wavelength. The device is a subtractive double monochromator in which an intermediate slit is moved to effect wavelength scanning; the intermediate slit fitted in a rotating disk positioned at the intermediate focal plane of the monochromator. Two forms of the device are disclosed.

    Abstract translation: 本发明是用于产生在波长上快速且重复变化的光束的扫描单色仪。 该装置是一种减色双色器,其中中间狭缝移动以实现波长扫描; 中间狭缝装配在位于单色仪的中间焦平面处的旋转盘中。 公开了两种形式的装置。

    Dispersive spectrometry installation with multi-channel detection
    276.
    发明授权
    Dispersive spectrometry installation with multi-channel detection 失效
    具有多通道检测功能的分光光度仪安装

    公开(公告)号:US5164786A

    公开(公告)日:1992-11-17

    申请号:US720708

    申请日:1991-06-25

    Abstract: The invention relates to a spectrometry installation comprising an inlet, optical fiber means suitable for receiving an inlet beam and delivering a spectrally dispersed image of the beam which image is limited to a selected spectral band, a multi-channel detection module receiving said spectral image, and processor means. The optical filter means are provided with a deflector stage. Control means are associated with the optical deflector means to define the spectral band in terms of center frequency and band width, and control means are associated therewith for displacing the spectral image over the detection module. An electronic control unit is provided to control the control means and to control the processor means in a plurality of operating modes, each of which comprises joint control of the selected spectral band, of the displacement of the spectral image, and of the processor means, for the purpose of selectively using a particular set of detector components.

    Abstract translation: 本发明涉及一种光谱测量装置,其包括入口,适于接收入射光束的光纤装置,并将该光束的光谱分散图像传送到所选择的光谱带,多通道检测模块接收所述光谱图像, 和处理器装置。 滤光器装置设置有偏转器级。 控制装置与光学偏转器装置相关联以根据中心频率和带宽限定光谱带,并且控制装置与其相关联,用于使检测模块上的光谱图像移位。 提供电子控制单元以控制控制装置并且以多个操作模式来控制处理器装置,每个操作模式包括所选频谱带的联合控制,频谱图像的位移以及处理器装置, 以便选择性地使用特定的一组检测器部件。

    Scanning monochromator
    277.
    发明授权
    Scanning monochromator 失效
    扫描单色仪

    公开(公告)号:US5096295A

    公开(公告)日:1992-03-17

    申请号:US664592

    申请日:1991-03-01

    CPC classification number: G01J3/06 G01J2003/063 G01J2003/066

    Abstract: In its preferred embodiment, a scanning monochromator uses a pulse-driven micro-stepping motor to drive a spectral-dispersion element via a reduction-gear harmonic drive. The motor is directly coupled to the input hub of the reduction-gear drive, and the output hub of the reduction-gear drive directly supports the spectral-dispersion element. By selecting a motor with a great number of steps per revolution, and a harmonic drive with a great reduction ratio, a resolution of 5 million pulsed steps is available, per single rotation of the output hub of the reduction-gear drive. This translates into more than 600,000 incremental angular-displacement steps over a usable 45.degree. range of dispersion-element rotation.

    Abstract translation: 在其优选实施例中,扫描单色仪使用脉冲驱动微步进电机经由减速齿轮谐波驱动来驱动频谱色散元件。 电机直接连接在减速齿轮传动装置的输入轮毂上,减速齿轮传动装置的输出轮毂直接支撑分光元件。 通过选择每转数很多的电机,以及减速比大的谐波驱动器,减速齿轮传动的输出轮毂每旋转一次就可以获得500万次脉冲步进的分辨率。 这在可用的45°范围的分散体旋转中转化为超过60万个增量角位移步长。

    Apparatus for converting the wavelength resolution of a spectrophotometer
    278.
    发明授权
    Apparatus for converting the wavelength resolution of a spectrophotometer 失效
    用于转换分光光度计的波长分辨率的装置

    公开(公告)号:US4669880A

    公开(公告)日:1987-06-02

    申请号:US704357

    申请日:1985-02-21

    CPC classification number: G01J3/2803 G01J3/027

    Abstract: Output data from a spectrophotometer may be presented as a series of data values representative of the intensity amplitude of pass bands having equal bandwidths (resolution) and spaced at wavelength intervals equal to the bandwidth. For some purposes it is desirable to increase the bandwidth of said data, and this invention discloses method and apparatus for converting such data to equivalent data having a selected greater bandwidth.

    Abstract translation: 来自分光光度计的输出数据可以表示为表示具有相等带宽(分辨率)并且等于带宽的波长间隔的通带的强度幅度的一系列数据值。 为了某些目的,期望增加所述数据的带宽,并且本发明公开了用于将这些数据转换成具有所选更大带宽的等效数据的方法和装置。

    Optical waveguide spectrum analyzer and method
    279.
    发明授权
    Optical waveguide spectrum analyzer and method 失效
    光波导频谱分析仪及方法

    公开(公告)号:US4664522A

    公开(公告)日:1987-05-12

    申请号:US644325

    申请日:1984-08-24

    Inventor: David A. LeFebre

    CPC classification number: G01J3/28 G01J2003/062 G01J2003/064 G01J2003/2866

    Abstract: System and method for analyzing spectral data from an optical fiber waveguide. Light from the waveguide is directed to a diffraction grating which separates the light into its spectral components and directs these components toward a light responsive detector. The grating is rotated to cause spectral components of different wavelengths to sweep across the detector, and a sensor provides a signal corresponding to the angular position of the grating. A table of calibration data is generated by introducing monochromatic light of known wavelength into the waveguide, positioning the grating to cause the light at two known points in the spectrum of the monochromatic light to impinge upon the detector, and utilizing the wavelength of the monochromatic light and the values of the sensor signal at the two known points to define the relationship between the sensor signal and the detected wavelength for a plurality of grating positions. The calibaration data and the sensor signal are utilized to determine the wavelength of light peaks produced by a sample, and they are also utilized to generate a control signal for positioning the grating very accurately to detect light of a given wavelength. In one disclosed embodiment, two detectors having different spectral responses are employed, and light in different portions of the spectrum is detected by respective ones of the detectors.

    Abstract translation: 用于分析来自光纤波导的光谱数据的系统和方法。 来自波导的光被引导到衍射光栅,其将光分离成其光谱分量并将这些分量指向光响应检测器。 旋转光栅以使不同波长的光谱分量扫过检测器,并且传感器提供对应于光栅的角位置的信号。 通过将已知波长的单色光引入到波导中来产生校准数据表,定位光栅以使单色光谱中的两个已知点处的光照射到检测器上,并利用单色光的波长 以及两个已知点处的传感器信号的值,以限定多个光栅位置的传感器信号和检测到的波长之间的关系。 使用校准数据和传感器信号来确定由样品产生的光峰的波长,并且它们还用于产生用于非常精确地定位光栅的控制信号,以检测给定波长的光。 在一个公开的实施例中,采用具有不同光谱响应的两个检测器,并且通过相应的检测器检测光谱的不同部分中的光。

    Controlling light beam spectrum
    280.
    发明授权
    Controlling light beam spectrum 失效
    控制光束光谱

    公开(公告)号:US4660975A

    公开(公告)日:1987-04-28

    申请号:US630605

    申请日:1984-07-13

    Inventor: John E. Aughton

    CPC classification number: G01J3/14 G01J3/46 G01J2003/1278 G01J3/501

    Abstract: A method and apparatus for controlling the spectral components of a light beam are described. The apparatus comprises means (3-7) for generating a collimated light beam; means (9) for dispersing the collimated beam; a mask (1) including an aperture (2) the size of which is such that a portion of the dispersed beam passes through the aperture in use; and movement means (not shown) for causing relative transverse movement between the light beam and the aperture. A memory (not shown) is provided for storing in use a profile of the relative transverse movement between the light beam and the aperture (2) required to obtain a desired spectral response in the transmitted light beam, the movement means being responsive to the stored profile to cause relative transverse movement in accordance with the predetermined profile.

    Abstract translation: 描述了用于控制光束的光谱分量的方法和装置。 该装置包括用于产生准直光束的装置(3-7) 用于分散准直光束的装置(9); 包括孔(2)的面罩(1),其尺寸使得分散束的一部分在使用中通过所述孔; 以及用于在光束和孔之间引起相对横向移动的移动装置(未示出)。 提供存储器(未示出),用于在使用中存储光束与在透射光束中获得期望的光谱响应所需的光圈(2)之间的相对横向移动的轮廓,该移动装置响应于所存储的 轮廓以根据预定轮廓引起相对横向移动。

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