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15 条记录 (耗时 0.013 秒)

    MULTIPHASE FLUID CHARACTERIZATION SYSTEM
    1.
    发明公开
    MULTIPHASE FLUID CHARACTERIZATION SYSTEM 审中-公开
    系统ZUR CHARAKTERISIERUNG VONMEHRPHASENFLÜSSIGKEITEN

    公开(公告)号：EP2612139A1

    公开(公告)日：2013-07-10

    申请号：EP11822781.8

    申请日：2011-09-06

    申请人： Los Alamos National Security LLC

    发明人： SINHA, Dipen N.

    IPC分类号： G01N29/02

    CPC分类号： G01N29/024 ,  G01F1/66 ,  G01F1/74 ,  G01F1/84 ,  G01F25/0007 ,  G01N29/032 ,  G01N29/222 ,  G01N29/348 ,  G01N2291/017 ,  G01N2291/0222 ,  G01N2291/0224 ,  G01N2291/02433 ,  G01N2291/0289 ,  G01N2291/048 ,  G01N2291/105

    摘要： A measurement system and method for permitting multiple independent measurements of several physical parameters of multiphase fluids flowing through pipes are described. Multiple acoustic transducers are placed in acoustic communication with or attached to the outside surface of a section of existing spool (metal pipe), typically less than 3 feet in length, for noninvasive measurements. Sound speed, sound attenuation, fluid density, fluid flow, container wall resonance characteristics, and Doppler measurements for gas volume fraction may be measured simultaneously by the system. Temperature measurements are made using a temperature sensor for oil-cut correction.

    摘要翻译： 描述了一种用于允许多个独立测量流过管道的多相流体的多个物理参数的测量系统和方法。 多个声学传感器被放置在与现有卷轴（金属管）的一段的外部表面声学连通或者连接到一个小于3英尺长度的现有卷轴（金属管）上，用于非侵入式测量。 声速，声音衰减，流体密度，流体流量，容器壁共振特性和气体体积分数的多普勒测量可以由系统同时测量。 使用温度传感器对油切割校正进行温度测量。

    APPARATUS AND METHOD FOR NONINVASIVE PARTICLE DETECTION USING DOPPLER SPECTROSCOPY
    3.
    发明公开
    APPARATUS AND METHOD FOR NONINVASIVE PARTICLE DETECTION USING DOPPLER SPECTROSCOPY 审中-公开
    VORRICHTUNG UND VERFAHRENFÜRNICHTINVASIVE PARTIKELDETEKTION MITHILFE EINER DOPPLERSPEKTROSKOPIE

    公开(公告)号：EP2612143A1

    公开(公告)日：2013-07-10

    申请号：EP11822772.7

    申请日：2011-09-06

    申请人： Los Alamos National Security LLC

    发明人： SINHA, Dipen N.

    IPC分类号： G01N29/34

    CPC分类号： G01F1/663 ,  G01F1/704 ,  G01F1/74 ,  G01N15/02 ,  G01N29/036 ,  G01N2015/0053 ,  G01N2291/017 ,  G01N2291/02416

    摘要： An apparatus and method for detecting the presence of solid particulates suspended in a fluid flowing through a pipe or an oil and gas wellbore are described. A volume of fluid flowing through a conduit containing the particulate solids is exposed to a fixed frequency of ultrasonic vibrations from a transducer attached to the outside of the pipe. The returning Doppler frequency shifted signal derived from the scattering of sound from the moving solid particles is detected by a transducer. The high frequencies used are above external and ambient noise present in production locations, and sound transmission through the conduit wall is maximized by selecting frequencies that correspond to the thickness mode resonance of the wall. The transmitted signal and the Doppler signal are combined to provide sensitive particulate detection. The magnitude of the signal and the Doppler frequency shift are used to determine the particle size distribution and the velocity of the particles.

    摘要翻译： 描述了用于非侵入性地检测悬浮在流过管道或油气井的流体中的固体颗粒物质的存在的装置和方法。 流过包含颗粒固体的管道的流体暴露于来自连接到管外部的传感器的超声振动的固定频率（> 1MHz）。 从移动的固体颗粒的声音散射得到的返回多普勒频移信号由相邻的换能器检测。 传输的信号和多普勒信号被组合以提供敏感的微粒检测。 信号的幅度和多普勒频移用于确定粒子的粒度分布和粒子的速度。 所施加的频率与所检测的多普勒频移之间的相移的测量可以用于确定颗粒的运动方向。

    DETECTION AND MONITORING OF CHANGES IN METALLIC STRUCTURES USING MULTIMODE ACOUSTIC SIGNALS
    8.
    发明公开
    DETECTION AND MONITORING OF CHANGES IN METALLIC STRUCTURES USING MULTIMODE ACOUSTIC SIGNALS 审中-公开

    公开(公告)号：EP3335036A1

    公开(公告)日：2018-06-20

    申请号：EP16873503.3

    申请日：2016-08-12

    申请人： Los Alamos National Security, LLC ,  Chevron U.S.A. Inc.

    发明人： FINDIKOGLU, Alp T. ,  SINHA, Dipen N. ,  CHAPMAN, Daniel R.

    IPC分类号： G01N29/024 ,  G01N29/34 ,  G01F1/66 ,  G01F1/708 ,  G01F1/74

    摘要： Methods for detecting and monitoring changes in mechanical structures and in walls of pipes, vessels and storage tanks, using muitimode acoustic signal propagation and detection, are described. Acoustic signals having chosen amplitude-time-frequency characteristics excite multiple modes in the structure under investigation, are generated and received at a small number of accessible locations, such as the ends of pipes and the tops and bottoms of vessels and storage tanks, with the inspection region between transmit and receive transducers. Small mechanical changes lead to acoustic scattering and attenuation among the various modes, which are detectable as changes in received signal intensity. Such changes may include material loss, material conversion and material addition. Once the structure is characterized in a known condition, the present method may be used to monitor the structure at a later time to determine whether changes have taken place. Methods for effective temperature compensation are also described. In addition, various pipe geometries and complex pipe geometries involving elbows, flanges, and the like can be monitored.

    DEVICE AND METHOD FOR GENERATING A COLLIMATED BEAM OF ACOUSTIC ENERGY IN A BOREHOLE
    10.
    发明公开
    DEVICE AND METHOD FOR GENERATING A COLLIMATED BEAM OF ACOUSTIC ENERGY IN A BOREHOLE 有权
    装置和方法，用于产生准直声能量束的孔

    公开(公告)号：EP2577357A2

    公开(公告)日：2013-04-10

    申请号：EP11727347.4

    申请日：2011-05-06

    申请人： Chevron U.S.A. Incorporated ,  Los Alamos National Security LLC

    发明人： VU, Cung Khac ,  SINHA, Dipen N. ,  PANTEA, Cristian ,  NIHEI, Kurt T. ,  SCHMITT, Denis P. ,  SKELT, Christopher

    IPC分类号： G01V1/42 ,  G01V1/46

    CPC分类号： G01V1/00 ,  G01V1/006 ,  G01V1/46

    摘要： In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first acoustic wave at a first frequency; generating a second acoustic wave at a second frequency different than the first frequency, wherein the first acoustic wave and second acoustic wave are generated by at least one transducer carried by a tool located within the borehole; transmitting the first and the second acoustic waves into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated beam by a non-linear mixing of the first and second acoustic waves, wherein the collimated beam has a frequency based upon a difference between the first frequency and the second frequency; and transmitting the collimated beam through a diverging acoustic lens to compensate for a refractive effect caused by the curvature of the borehole.