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1. 发明授权

US10331025B2 Acoustic imaging of objects in optically opaque fluids 有权
公开(公告)号：US10331025B2
公开(公告)日：2019-06-25
申请号：US14062731
申请日：2013-10-24
申请人： LOS ALAMOS NATIONAL SECURITY, LLC
发明人： Dipen N. Sinha , Curtis F. Osterhoudt , Cristian Pantea
IPC分类号： G03B42/06 , G01S15/89
摘要： The present invention is a method and an apparatus that can image objects immersed in optically opaque fluids using ultrasound in a confined space and in a harsh environment. If the fluid is not highly attenuating at frequencies above 1 MHz, where commercial ultrasound scanners are available, such scanners can be adapted for imaging in these fluids. In the case of highly attenuating fluids, such as drilling mud, then a low frequency collimated sound source is used.

2. 发明申请

US20160356744A1 APPARATUS AND METHOD FOR ACOUSTIC MONITORING OF STEAM QUALITY AND FLOW 审中-公开
公开(公告)号：US20160356744A1
公开(公告)日：2016-12-08
申请号：US15237522
申请日：2016-08-15
申请人： Los Alamos National Security, LLC
发明人： Dipen N. Sinha , Cristian Pantea
IPC分类号： G01N29/036 , G01F1/66
CPC分类号： G01N29/036 , G01F1/666
摘要： An apparatus and method for noninvasively monitoring steam quality and flow and in pipes or conduits bearing flowing steam, are described. By measuring the acoustic vibrations generated in steam-carrying conduits by the flowing steam either by direct contact with the pipe or remotely thereto, converting the measured acoustic vibrations into a frequency spectrum characteristic of the natural resonance vibrations of the pipe, and monitoring the amplitude and/or the frequency of one or more chosen resonance frequencies, changes in the steam quality in the pipe are determined. The steam flow rate and the steam quality are inversely related, and changes in the steam flow rate are calculated from changes in the steam quality once suitable calibration curves are obtained.

3. 发明申请

US20140050046A1 ACOUSTIC IMAGING OF OBJECTS IN OPTICALLY OPAQUE FLUIDS 审中-公开
标题翻译：在OPENQUE OPTIQUE FLUIDS中的对象的声学成像
公开(公告)号：US20140050046A1
公开(公告)日：2014-02-20
申请号：US14062731
申请日：2013-10-24
申请人： LOS ALAMOS NATIONAL SECURITY, LLC
发明人： Dipen N. Sinha , Curtis F. Osterhoudt , Cristian Pantea
IPC分类号： G03B42/06
CPC分类号： G03B42/06 , G01S15/8913 , G01S15/8934 , G01S15/895
摘要： The present invention is a method and an apparatus that can image objects immersed in optically opaque fluids using ultrasound in a confined space and in a harsh environment. If the fluid is not highly attenuating at frequencies above 1 MHz, where commercial ultrasound scanners are available, such scanners can be adapted for imaging in these fluids. In the case of highly attenuating fluids, such as drilling mud, then a low frequency collimated sound source is used.
摘要翻译：本发明是一种方法和装置，其可以在狭窄的空间和恶劣的环境中使用超声波对浸入光学不透明流体中的物体进行成像。如果流体在1MHz以上的频率下没有高度衰减，商业超声波扫描仪可用，这些扫描仪可适应于这些流体中的成像。在高度衰减的液体如钻井泥浆的情况下，则使用低频准直声源。

4. 发明授权

US10088590B2 Methods for measuring properties of multiphase oil-water-gas mixtures 有权
公开(公告)号：US10088590B2
公开(公告)日：2018-10-02
申请号：US14782090
申请日：2014-04-04
申请人： Los Alamos National Security, LLC , Dipen N. Sinha , Anirban Chaudhuri , Cristian Pantea
发明人： Dipen N. Sinha , Anirban Chaudhuri , Cristian Pantea
IPC分类号： G01V1/44 , G01F1/66 , G01F1/74 , E21B49/08
摘要： Methods for real-time, continuous measurements of the composition and other properties of individual phases of petroleum, water and gas mixtures during the oil production process, without requiring test separators, test lines, with associated valving and instrumentation, are described. Embodiments of the present invention direct ultrasonic sound transmission through a flowing multiphase fluid in three frequency ranges: low frequencies, gas bubble resonance frequencies, and high frequencies, wherein certain sound propagation measurements, including sound speed, sound attenuation and sound scattering, are made in one or more of the three separate frequency regions, from which the multiphase composition and other properties are extracted without having to separate the multiphase fluid or the gas from the flowing stream.

5. 发明申请

US20180088083A1 ULTRASONIC IN-SITU WATER-CUT MEASUREMENT USING ULTRASONIC OIL-WATER SEPARATION FOR AFFECTING SOUND SPEED CALIBRATION 审中-公开
公开(公告)号：US20180088083A1
公开(公告)日：2018-03-29
申请号：US15563603
申请日：2016-04-01
申请人： Los Alamos National Security, LLC
发明人： Dipen N. Sinha , Cristian Pantea
IPC分类号： G01N29/024
CPC分类号： G01N29/024 , G01F1/74 , G01N2291/0222 , G01N2291/0226 , G01N2291/105 , G01N2291/2634
摘要： An apparatus and method for the separation of an oil-water mixture into its components are described. An acoustic radiation force moves oil droplets to the nodes of an acoustic standing wave generated in a vertical column containing the oil-water mixture. Once the droplets are sufficiently close together, attractive forces become dominant and the droplets may coalesce to form larger droplets, which have greater buoyancy, and separation of the mixture into a layer of oil and a layer of water occurs, not possible by simple gravitational separation. Acoustically-driven oil-water separation may be used for water-cut measurements in oil production wells, since separation of the oil from the water permits accurate sound speed measurements to be made for both the oil and the water, thereby allowing frequent in situ calibrations of the apparatus to determine whether sound speed measurements on the mixture are accurate in the event that one or both of the mixture constituents is changing.

6. 发明申请

US20160013871A1 BROADBAND UNIDIRECTIONAL ULTRASOUND PROPAGATION 有权
标题翻译：宽带无源超声波传播
公开(公告)号：US20160013871A1
公开(公告)日：2016-01-14
申请号：US14680031
申请日：2015-04-06
申请人： Los Alamos National Security, LLC
发明人： Dipen N. Sinha , Cristian Pantea
IPC分类号： H04B11/00
CPC分类号： H04B11/00 , G10K11/04
摘要： A passive, linear arrangement of a sonic crystal-based apparatus and method including a 1D sonic crystal, a nonlinear medium, and an acoustic low-pass filter, for permitting unidirectional broadband ultrasound propagation as a collimated beam for underwater, air or other fluid communication, are described. The signal to be transmitted is first used to modulate a high-frequency ultrasonic carrier wave which is directed into the sonic crystal side of the apparatus. The apparatus processes the modulated signal, whereby the original low-frequency signal exits the apparatus as a collimated beam on the side of the apparatus opposite the sonic crystal. The sonic crystal provides a bandpass acoustic filter through which the modulated high-frequency ultrasonic signal passes, and the nonlinear medium demodulates the modulated signal and recovers the low-frequency sound beam. The low-pass filter removes remaining high-frequency components, and contributes to the unidirectional property of the apparatus.
摘要翻译：一种基于声波晶体的装置和包括1D声波晶体，非线性介质和声学低通滤波器的无源线性布置，用于允许单向宽带超声波传播作为用于水下，空气或其它流体通信的准直波束，被描述。要发送的信号首先用于调制被引导到装置的声音晶体侧的高频超声波载波。该装置处理调制信号，由此原始低频信号作为与声波晶体相对的设备侧的准直光束离开设备。声波晶体提供了一个带通滤波器，调制后的高频超声波信号通过该滤波器，非线性介质解调调制信号并恢复低频声束。低通滤波器去除剩余的高频分量，并有助于设备的单向特性。

7. 发明授权

US10887682B1 Resonance-enhanced compact nonlinear acoustic source of low frequency collimated beam for imaging applications in highly attenuating media 有权
公开(公告)号：US10887682B1
公开(公告)日：2021-01-05
申请号：US15902939
申请日：2018-02-22
申请人： Los Alamos National Security, LLC
发明人： Cristian Pantea , Dipen N. Sinha
IPC分类号： H04R1/28 , H04R3/04
摘要： Acoustic signal sources include acoustic resonators that include acoustic nonlinear materials. Acoustic signals at higher frequencies are mixed in the nonlinear materials to produce a lower frequency acoustic signal. Resonance provides increased efficiency in producing acoustic signals at difference frequencies corresponding to resonance frequencies. Higher frequency acoustic signals used in nonlinear mixing are preferably at frequencies corresponding to resonance frequencies as well.

8. 发明授权

US09843400B2 Broadband unidirectional ultrasound propagation 有权
公开(公告)号：US09843400B2
公开(公告)日：2017-12-12
申请号：US14680031
申请日：2015-04-06
申请人： Los Alamos National Security, LLC
发明人： Dipen N. Sinha , Cristian Pantea
IPC分类号： H04B11/00 , G10K11/04
CPC分类号： H04B11/00 , G10K11/04
摘要： A passive, linear arrangement of a sonic crystal-based apparatus and method including a 1D sonic crystal, a nonlinear medium, and an acoustic low-pass filter, for permitting unidirectional broadband ultrasound propagation as a collimated beam for underwater, air or other fluid communication, are described. The signal to be transmitted is first used to modulate a high-frequency ultrasonic carrier wave which is directed into the sonic crystal side of the apparatus. The apparatus processes the modulated signal, whereby the original low-frequency signal exits the apparatus as a collimated beam on the side of the apparatus opposite the sonic crystal. The sonic crystal provides a bandpass acoustic filter through which the modulated high-frequency ultrasonic signal passes, and the nonlinear medium demodulates the modulated signal and recovers the low-frequency sound beam. The low-pass filter removes remaining high-frequency components, and contributes to the unidirectional property of the apparatus.

9. 发明申请

US20160041286A1 METHODS FOR MEASURING PROPERTIES OF MULTIPHASE OIL-WATER-GAS MIXTURES 审中-公开
标题翻译：用于测量多相油 - 水 - 气体混合物性质的方法
公开(公告)号：US20160041286A1
公开(公告)日：2016-02-11
申请号：US14782090
申请日：2014-04-04
申请人： Dipen N. SINHA , Anirban CHAUDHURI , Cristian PANTEA , LOS ALAMOS NATIONAL SECURITY, LLC
发明人： Dipen N. Sinha , Anirban Chaudhuri , Cristian Pantea
IPC分类号： G01V1/44 , E21B49/08
CPC分类号： G01V1/44 , E21B49/087 , G01F1/667 , G01F1/668 , G01F1/74
摘要： Methods for real-time, continuous measurements of the composition and other properties of individual phases of petroleum, water and gas mixtures during the oil production process, without requiring test separators, test lines, with associated valving and instrumentation, are described. Embodiments of the present invention direct ultrasonic sound transmission through a flowing multiphase fluid in three frequency ranges: low frequencies, gas bubble resonance frequencies, and high frequencies, wherein certain sound propagation measurements, including sound speed, sound attenuation and sound scattering, are made in one or more of the three separate frequency regions, from which the multiphase composition and other properties are extracted without having to separate the multiphase fluid or the gas from the flowing stream.
摘要翻译：描述了在油生产过程中实时，连续测量石油，水和气体混合物的各个阶段的组成和其他性能的方法，而不需要测试分离器，测试线以及相关的阀门和仪器。本发明的实施例通过流动的多相流体在三个频率范围内直接超声波传播：低频，气泡共振频率和高频率，其中某些声音传播测量包括声速，声音衰减和声音散射在三个分开的频率区域中的一个或多个，多相组合物和其它性质从中提取，而不必将多相流体或气体与流动流分离。

10. 发明申请

US20180120269A1 ACOUSTIC GAS VOLUME FRACTION MEASUREMENT IN A MULTIPHASE FLOWING LIQUID 审中-公开
公开(公告)号：US20180120269A1
公开(公告)日：2018-05-03
申请号：US15563606
申请日：2016-04-04
申请人： Los Alamos National Security, LLC
发明人： Dipen N. Sinha , Anirban Chaudhuri , Cristian Pantea
IPC分类号： G01N29/34 , G01N29/036 , H04R1/42
CPC分类号： G01N29/343 , G01N29/036 , G01N2291/014 , G01N2291/0222 , G01N2291/02433 , G01N2291/2634 , H04R1/42
摘要： Apparatus and methods for the measurement of gas volume fraction of produced oil are described. A first method measures the response of a pipe containing the produced oil excited by a source of vibration in the form of an acoustic frequency chirp containing a linearly varying range of frequencies in the tens of kilohertz range encompassing at least one resonant mode of the pipe. As the gas volume fraction increases, the location of the peak maximum of the measured frequency spectrum responsive to the excitation increases in frequency, and the height of the peak maximum increases, thereby permitting a linear calibration curve to be obtained. A second method measures the response of a pipe containing the produced oil to excitation by a continuous source of vibration having a chosen frequency above those which excite flexural vibrations in the pipe and simultaneously excite acoustic waves in the fluid contained in the pipe, known as the coincidence frequency. Gas present in the fluid will interrupt sound propagation or reverberation, thereby generating fluctuations in the amplitude of the measured vibrations of the pipe. The amplitude fluctuation level provides a measure of the gas volume present inside the pipe. A third method measures the response of a pipe containing the produced oil to excitation by a high-bandwidth, short pulse having a chosen center frequency above the coincidence frequency. Gas present in the fluid will interrupt pulse propagation, thereby generating fluctuations in the amplitude of the measured vibrations of the pipe.

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