MULTICOIL NMR DATA ACQUISITION AND PROCESSING METHODS
    6.
    发明授权
    MULTICOIL NMR DATA ACQUISITION AND PROCESSING METHODS 有权
    多核磁共振数据采集和处理方法

    公开(公告)号:EP1651974B8

    公开(公告)日:2011-11-02

    申请号:EP04777777.6

    申请日:2004-07-09

    申请人: Vista Clara, Inc.

    发明人: Vista Clara, Inc.

    IPC分类号: G01R33/483

    摘要: A multicoil NMR data acquisition apparatus and processing method for performing three-dimensional magnetic resonance imaging in a static magnetic field without the application of controlled static magnetic field gradients. A preferred application relates specifically to the detection and localization of groundwater using the Earth's magnetic field. Multicoil arrays are used in both transmit and receive modes, and coherent data processing algorithms applied to the data to generate three-dimensional NMR spin density estimates. Disclosed are methods for acquiring NMR data using an array of at least two transmit and receive coils, and for processing such multicoil data to estimate the three-dimensional NMR spin density distributions.

    摘要翻译: 一种多微管NMR数据采集装置和处理方法,用于在静态磁场中执行三维磁共振成像而不施加受控的静态磁场梯度。 一个优选的应用具体涉及利用地球磁场检测和定位地下水。 Multicoil阵列用于发送和接收模式,并将相干数据处理算法应用于数据以生成三维NMR自旋密度估计。 公开了使用至少两个发射和接收线圈阵列采集NMR数据并且处理这种多线性数据以估计三维NMR自旋密度分布的方法。

    CHARACTERIZATION OF AN OIL AND GAS INDUSTRY SAMPLE
    10.
    发明公开
    CHARACTERIZATION OF AN OIL AND GAS INDUSTRY SAMPLE 审中-公开
    表征石油和天然气工业探头

    公开(公告)号:EP3028037A1

    公开(公告)日:2016-06-08

    申请号:EP14753297.2

    申请日:2014-07-31

    申请人: Salunda Limited

    IPC分类号: G01N24/08 G01V3/32

    摘要: A sample acquired during hydrocarbon exploration or production, and comprising at least one of water, hydrocarbons or solids, is sensed by performing continuous wave nuclear magnetic resonance measurements of the amount of a relevant type of nucleus from which a measure of the composition of the sample is derived. During a scan through resonance of the one or more types of nuclei, there is detected an absorption measurement of the absorbed energy of the electromagnetic field, that may be an integrated measure of instantaneous absorption. Hydrogen nuclei may be measured to derive a measure of the amount of water in the sample. Chlorine nuclei and/or sodium nuclei may be measured to derive a measure of the salinity of the sample.