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

IPC分类号： G01R33/58 ,  G01R33/46 ,  G01N24/08 ,  G01R33/44

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).

公开(公告)号：US20140009158A1

公开(公告)日：2014-01-09

申请号：US14023033

申请日：2013-09-10

申请人： VISTA CLARA, INC.

发明人： DAVID O. WALSH ,  ELLIOT D. GRUNEWALD

IPC分类号： G01R33/44

CPC分类号： G01R33/44 ,  G01N24/081 ,  G01R33/4608

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.

摘要翻译： 公开了适用于SNMR脉冲排序的技术，包括SNMR采集装置和方法，SNMR处理装置和方法及其组合。 SNMR获取可以包括根据各种技术中的任何一种传输SNMR脉冲序列。 SNMR处理可以包括从多个脉冲序列组合SNMR。

公开(公告)号：US20130193969A1

公开(公告)日：2013-08-01

申请号：US13750984

申请日：2013-01-25

申请人： VISTA CLARA INC.

发明人： ELLIOT D. GRUNEWALD ,  DAVID O. WALSH

IPC分类号： G01R33/44 ,  G01R33/32

CPC分类号： G01R33/448 ,  G01N24/081 ,  G01R33/32 ,  G01R33/341 ,  G01R33/445 ,  G01V3/14

摘要： Technologies including NMR relaxation time estimation methods and corresponding apparatus are disclosed. Example techniques may 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.

摘要翻译： 公开了包括NMR松弛时间估计方法和相应装置在内的技术。 示例性技术可以产生具有任意幅度，时间延迟和相对相位的两个或多个交流发射脉冲; 应用表面NMR采集方案，其中其性质可以在多个采集序列的集合上固定的初始准备脉冲在每个采集序列的开始处被传送，并且之后是一个或多个深度敏感脉冲，脉冲时刻 在多个采集序列的集合中是不同的; 并应用其中使用记录的NMR响应数据来估计NMR性质和弛豫时间T1和T2 *的处理技术作为位置的函数以及T1与T2 *的一维和二维分布作为地下的函数 位置。

公开(公告)号：US20140084927A1

公开(公告)日：2014-03-27

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

IPC分类号： G01V3/14

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。

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。

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.

发明人： ELLIOT D. GRUNEWALD ,  DAVID O. WALSH

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。