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公开(公告)号：US10162026B2
公开(公告)日：2018-12-25
申请号：US14286382
申请日：2014-05-23
申请人： VISTA CLARA INC.
发明人： David O. Walsh
IPC分类号： G01R33/341 , G01R33/36 , G01V3/32 , G01V3/38 , G01N24/08 , G01R33/28 , G01R33/38 , G01R33/565
摘要： Technologies applicable to noise canceling in-situ NMR detection and imaging are disclosed. An example noise canceling in-situ NMR detection apparatus may comprise one or more of a static magnetic field generator, an alternating magnetic field generator, an in-situ NMR detection device, an auxiliary noise detection device, and a computer.
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公开(公告)号：US10145915B2
公开(公告)日：2018-12-04
申请号：US14023033
申请日：2013-09-10
申请人： VISTA CLARA, INC.
摘要： Technologies applicable to SNMR pulse sequencing are disclosed, including SNMR acquisition apparatus and methods, SNMR processing apparatus and methods, and combinations thereof. SNMR acquisition may include transmitting SNMR pulse sequences according to any of a variety of techniques. SNMR processing may include combining SNMR from a plurality of pulse sequences.
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公开(公告)号：US20170219675A1
公开(公告)日：2017-08-03
申请号：US15383840
申请日：2016-12-19
申请人： VISTA CLARA INC.
发明人： DAVID O. WALSH
CPC分类号： G01R33/583 , G01N24/081 , G01R33/441 , G01R33/448 , G01R33/4625
摘要： Technologies applicable to NMR spin-echo amplitude estimation are disclosed. Example methods may calibrate for distortion of a shape and estimated amplitude of measured NMR spin or gradient echoes. NMR spin or gradient echo measurements may be performed on a sample. The measured NMR spin or gradient echoes may be used to calculate an echo-shape calibration factor. The echo-shape calibration factor may estimate an effect of echo shape on estimated spin or gradient echo amplitude(s) of the NMR spin or gradient echoes. The echo-shape calibration factor may be used to correct for underestimation or overestimation of the spin or gradient echo amplitude(s).
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公开(公告)号：US09429673B2
公开(公告)日：2016-08-30
申请号：US14034110
申请日：2013-09-23
申请人： VISTA CLARA INC.
发明人： David O. Walsh , Elliot D. Grunewald , Hong Zhang
CPC分类号： G01V3/14 , G01N24/081 , G01R33/3808
摘要： Technologies applicable to surface-based NMR measurement are disclosed. A surface probe is positionable at or above a surface of the Earth and adapted to make NMR measurements of shallow or very shallow subsurface volumes. NMR spectrometer components connected to the surface probe are configured to control electromagnetic pulses produced by the surface probe and to record resulting detected NMR signals from the subsurface volume.
摘要翻译： 公开了适用于表面NMR测量的技术。 表面探针位于地球表面或其上方，适于对浅层或非常浅的地下体积进行NMR测量。 连接到表面探针的NMR光谱仪组件被配置为控制由表面探针产生的电磁脉冲并记录从地下体积得到的检测到的NMR信号。
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公开(公告)号：US10113982B2
公开(公告)日：2018-10-30
申请号：US14054361
申请日：2013-10-15
申请人： VISTA CLARA INC.
发明人： David O. Walsh , Peter Turner
IPC分类号： G01V3/32 , G01N24/08 , G01R33/36 , G01R33/341 , G01R33/38
摘要： Technologies including NMR logging apparatus and methods are disclosed. Example NMR logging apparatus may include surface instrumentation and one or more downhole probes configured to fit within an earth borehole. The surface instrumentation may comprise a power amplifier, which may be coupled to the downhole probes via one or more transmission lines, and a controller configured to cause the power amplifier to generate a NMR activating pulse or sequence of pulses. Impedance matching means may be configured to match an output impedance of the power amplifier through a transmission line to a load impedance of a downhole probe. Methods may include deploying the various elements of disclosed NMR logging apparatus and using the apparatus to perform NMR measurements.
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公开(公告)号：US09599688B2
公开(公告)日：2017-03-21
申请号：US13750984
申请日：2013-01-25
申请人： VISTA CLARA INC.
IPC分类号： G01R33/44 , G01R33/32 , G01N24/08 , G01V3/14 , G01R33/341
CPC分类号： G01R33/448 , G01N24/081 , G01R33/32 , G01R33/341 , G01R33/445 , G01V3/14
摘要： NMR relaxation time estimation methods and corresponding apparatus generate two or more alternating current transmit pulses with arbitrary amplitudes, time delays, and relative phases; apply a surface NMR acquisition scheme in which initial preparatory pulses, the properties of which may be fixed across a set of multiple acquisition sequence, are transmitted at the start of each acquisition sequence and are followed by one or more depth sensitive pulses, the pulse moments of which are varied across the set of multiple acquisition sequences; and apply processing techniques in which recorded NMR response data are used to estimate NMR properties and the relaxation times T1 and T2* as a function of position as well as one-dimensional and two-dimension distributions of T1 versus T2* as a function of subsurface position.
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公开(公告)号：US09588068B2
公开(公告)日：2017-03-07
申请号：US14160243
申请日：2014-01-21
申请人： VISTA CLARA INC.
CPC分类号： G01N24/084 , G01N24/081 , G01V3/32
摘要： Technologies applicable to detection and characterization of subsurface contaminants by NMR and dielectric measurements are disclosed. The disclosed technologies include methods for obtaining and combining data from NMR and dielectric measurements to detect, quantify, and characterize non-native non-aqueous phase liquid (NAPL) contaminants located in geologic materials.
摘要翻译： 公开了通过NMR和介电测量技术检测和表征地下污染物的技术。 所公开的技术包括用于获得和组合来自NMR和介电测量的数据以检测，量化和表征位于地质材料中的非天然非水相液体（NAPL）污染物的方法。
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公开(公告)号：US20140253119A1
公开(公告)日：2014-09-11
申请号：US14286382
申请日：2014-05-23
申请人： Vista Clara Inc.
发明人： DAVID O. WALSH
IPC分类号： G01R33/46 , G01R33/341
CPC分类号： G01R33/341 , G01N24/081 , G01R33/285 , G01R33/36 , G01R33/3664 , G01R33/3808 , G01R33/5659 , G01V3/32 , G01V3/38
摘要： Technologies applicable to noise canceling in-situ NMR detection and imaging are disclosed. An example noise canceling in-situ NMR detection apparatus may comprise one or more of a static magnetic field generator, an alternating magnetic field generator, an in-situ NMR detection device, an auxiliary noise detection device, and a computer.
摘要翻译： 公开了适用于噪声消除原位NMR检测和成像技术。 示例性降噪原位NMR检测装置可以包括静态磁场发生器，交变磁场发生器，原位NMR检测装置，辅助噪声检测装置和计算机中的一个或多个。
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公开(公告)号：US20140203806A1
公开(公告)日：2014-07-24
申请号：US14160243
申请日：2014-01-21
申请人： VISTA CLARA INC.
IPC分类号： G01N24/08
CPC分类号： G01N24/084 , G01N24/081 , G01V3/32
摘要： Technologies applicable to detection and characterization of subsurface contaminants by NMR and dielectric measurements are disclosed. The disclosed technologies include methods for obtaining and combining data from NMR and dielectric measurements to detect, quantify, and characterize non-native non-aqueous phase liquid (NAPL) contaminants located in geologic materials.
摘要翻译： 公开了通过NMR和介电测量技术检测和表征地下污染物的技术。 所公开的技术包括用于获得和组合来自NMR和介电测量的数据以检测，量化和表征位于地质材料中的非天然非水相液体（NAPL）污染物的方法。
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公开(公告)号：US10302733B2
公开(公告)日：2019-05-28
申请号：US15383840
申请日：2016-12-19
申请人： VISTA CLARA INC.
发明人： David O. Walsh
摘要： Technologies applicable to NMR spin-echo amplitude estimation are disclosed. Example methods may calibrate for distortion of a shape and estimated amplitude of measured NMR spin or gradient echoes. NMR spin or gradient echo measurements may be performed on a sample. The measured NMR spin or gradient echoes may be used to calculate an echo-shape calibration factor. The echo-shape calibration factor may estimate an effect of echo shape on estimated spin or gradient echo amplitude(s) of the NMR spin or gradient echoes. The echo-shape calibration factor may be used to correct for underestimation or overestimation of the spin or gradient echo amplitude(s).
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