公开(公告)号：US20070171412A1

公开(公告)日：2007-07-26

申请号：US11307170

申请日：2006-01-26

Applicant: Stephane Vannuffelen ,  Kentaro Indo ,  Go Fujisawa ,  Toru Terabayashi ,  Tsutomu Yamate

Inventor： Stephane Vannuffelen ,  Kentaro Indo ,  Go Fujisawa ,  Toru Terabayashi ,  Tsutomu Yamate

IPC: G01J3/28 ,  G01N21/25

CPC classification number: G01J3/36 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/0294 ,  G01J3/10 ,  G01J3/42 ,  G01N21/274 ,  G01N21/31 ,  G01N2021/317 ,  G01N2201/08

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070109537A1

公开(公告)日：2007-05-17

申请号：US11273893

申请日：2005-11-14

Applicant: Stephane Vannuffelen ,  Takeaki Nakayama ,  Tsutomu Yamate ,  Toru Terabayashi ,  Akira Otsuka ,  Kentaro Indo

Inventor： Stephane Vannuffelen ,  Takeaki Nakayama ,  Tsutomu Yamate ,  Toru Terabayashi ,  Akira Otsuka ,  Kentaro Indo

IPC: G01J3/28

CPC classification number: G01N21/31 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/433 ,  G01J2001/4242 ,  G01N21/274 ,  G01N33/2823 ,  G01N2021/317 ,  G01N2201/0218 ,  G01N2201/1211 ,  G01N2201/12723 ,  G01N2201/12792

Abstract: An apparatus for performing real-time analysis of a subterranean formation fluid includes a light source configured to transmit at least a sample signal through a sample of the subterranean formation fluid and a reference signal, at least one photodetector configured to continuously detect the sample and reference signals, and an electronics assembly configured to compensate for drift in the detected sample signal in real-time based on the value of the detected reference signal.

Abstract translation: 一种用于对地下地层流体进行实时分析的装置包括配置成至少透过地下地层流体样本和参考信号的样品信号的光源，至少一个被配置为连续检测样品和参考的光电检测器 信号和电子组件，其被配置为基于检测到的参考信号的值实时地补偿检测到的采样信号中的漂移。

公开(公告)号：US06606915B2

公开(公告)日：2003-08-19

申请号：US10111990

申请日：2002-08-20

Applicant: Stephane Vannuffelen

Inventor： Stephane Vannuffelen

IPC: G01F132

CPC classification number: G01F1/3227 ,  F15C1/22 ,  G01F1/3272

Abstract: The oscillation frequency of a fluid jet in a fluidic oscillator is measured using a temperature sensor. The resistance of the temperature sensor varies as a function of the oscillation of frequency f0 of the jet. The method consists in feeding the temperature sensor with an AC voltage of frequency f, and then in determining the frequency components around the frequency 3×f in the output signal from the temperature sensor in order to determine the oscillation frequency f0 of the jet. The frequency components in the signal output by the temperature sensor are determined by measuring the measurement signal across the terminals of the temperature sensor, then by synchronously demodulating the measurement signal at the frequency 3×f, and finally by determining the frequency of the demodulated measurement signal, which frequency corresponds to the oscillation frequency f0 of the jet.

Abstract translation: 使用温度传感器测量流体振荡器中的流体射流的振荡频率。 温度传感器的电阻随射流频率f​​0的振荡的变化而变化。 该方法包括将温度传感器馈送到频率f的交流电压，然后确定来自温度传感器的输出信号中频率3xf周围的频率分量，以确定射流的振荡频率f0。 由温度传感器输出的信号中的频率分量通过测量温度传感器端子上的测量信号来确定，然后通过以3×f频率同步解调测量信号，最后通过确定解调测量信号的频率， 该频率对应于射流的振荡频率f0。