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    • 5. 发明授权
    • System and method for dual path length optical analysis of fluids downhole
    • 井下液体双路径光学分析的系统和方法
    • US07826050B2
    • 2010-11-02
    • US11850434
    • 2007-09-05
    • Rocco DiFoggioPaul A. BergrenFrancisco Galvan-SanchezDaniel T. Georgi
    • Rocco DiFoggioPaul A. BergrenFrancisco Galvan-SanchezDaniel T. Georgi
    • G01N21/00
    • G01N21/0303G01N2021/0307G02B2207/117
    • A method is disclosed for changing an optical path length through a fluid downhole, comprising interspersing an optically transmissive member into a first optical path through the fluid, thereby creating a second shorter optical path through the fluid. In another embodiment, the method further comprises measuring an intensity of light, I1 transmitted through the first optical path; measuring an intensity of light, I2 transmitted through the second optical path; and estimating an optical property for the second optical path from the ratio, I1/I2. A system is disclosed for changing an optical path length through a fluid downhole, comprising a fluid passage between two optically transmissive windows for the fluid downhole, the fluid passage having a first optical path through the fluid; and an optically transmissive member for insertion into the first optical path, thereby creating a second shorter optical path through the fluid.
    • 公开了一种用于通过井下流体改变光路长度的方法,其包括将透光构件分散到通过流体的第一光路中,从而产生通过流体的第二较短光路。 在另一个实施例中,该方法还包括测量通过第一光路传输的光的强度; 测量通过第二光路传输的光的强度; 并从该比率I1 / I2估计第二光路的光学特性。 公开了一种用于通过井下流体改变光路长度的系统,包括用于流体井下的两个光学透射窗之间的流体通道,流体通道具有穿过流体的第一光路; 以及用于插入到第一光路中的透光构件,从而产生通过流体的第二较短光路。
    • 8. 发明申请
    • HIGH RESOLUTION CAPACITANCE HIGH CONDUCTIVITY FLUID SENSOR
    • 高分辨率电容高电导率流体传感器
    • US20090107666A1
    • 2009-04-30
    • US11924940
    • 2007-10-26
    • Borislav J. TchakarovPeter W. ReittingerFrancisco Galvan-Sanchez
    • Borislav J. TchakarovPeter W. ReittingerFrancisco Galvan-Sanchez
    • E21B47/12
    • G01V3/20
    • In a method and apparatus for estimating a downhole fluid parameter include a body having an elongated cavity defined by an electrically conductive inner surface, an central electrical conductor located coaxially within the cavity, wherein an annular region is defined by the cavity inner surface and an outer surface of the electrical conductor. A fluid is conveyed to the annular region. A first electrode is coupled to the central electrode, a second electrode coupled to the central electrode, and at least one intermediate electrode coupled to the central electrode between the first electrode and the second electrode. An input signal is applied to the central electrode and first and second output signals are emitted from the second electrode intermediate electrode. The output signals are used in part to estimate the fluid property of the fluid existing in the annular region.
    • 在用于估计井下流体参数的方法和装置中包括具有由导电内表面限定的细长空腔的主体,同轴地位于空腔内的中心电导体,其中环形区域由空腔内表面和外部空间 电导体表面。 流体被传送到环形区域。 第一电极耦合到中心电极,耦合到中心电极的第二电极和耦合到第一电极和第二电极之间的中心电极的至少一个中间电极。 输入信号施加到中心电极,第一和第二输出信号从第二电极中间电极发射。 输出信号被部分地用于估计存在于环形区域中的流体的流体特性。
    • 10. 发明授权
    • High resolution capacitance high conductivity fluid sensor
    • 高分辨率电容高电导率液体传感器
    • US07716978B2
    • 2010-05-18
    • US11924940
    • 2007-10-26
    • Borislav J. TchakarovPeter W. ReittingerFrancisco Galvan-Sanchez
    • Borislav J. TchakarovPeter W. ReittingerFrancisco Galvan-Sanchez
    • E21B47/00G01V3/18
    • G01V3/20
    • In a method and apparatus for estimating a downhole fluid parameter include a body having an elongated cavity defined by an electrically conductive inner surface, an central electrical conductor located coaxially within the cavity, wherein an annular region is defined by the cavity inner surface and an outer surface of the electrical conductor. A fluid is conveyed to the annular region. A first electrode is coupled to the central electrode, a second electrode coupled to the central electrode, and at least one intermediate electrode coupled to the central electrode between the first electrode and the second electrode. An input signal is applied to the central electrode and first and second output signals are emitted from the second electrode intermediate electrode. The output signals are used in part to estimate the fluid property of the fluid existing in the annular region.
    • 在用于估计井下流体参数的方法和装置中包括具有由导电内表面限定的细长空腔的主体,同轴地位于空腔内的中心电导体,其中环形区域由空腔内表面和外部空间 电导体表面。 将流体输送到环形区域。 第一电极耦合到中心电极,耦合到中心电极的第二电极和耦合到第一电极和第二电极之间的中心电极的至少一个中间电极。 输入信号施加到中心电极,第一和第二输出信号从第二电极中间电极发射。 输出信号被部分地用于估计存在于环形区域中的流体的流体特性。