OBTAINING A PROTON DENSITY DISTRIBUTION FROM NUCLEAR MAGNETIC RESONANCE DATA
    1.
    发明申请
    OBTAINING A PROTON DENSITY DISTRIBUTION FROM NUCLEAR MAGNETIC RESONANCE DATA 审中-公开
    从核磁共振数据获得原子密度分布

    公开(公告)号:US20090157350A1

    公开(公告)日:2009-06-18

    申请号:US11954556

    申请日:2007-12-12

    IPC分类号: G06F17/18 G01R33/20

    摘要: A computer-implemented method enables a proton density distribution to be obtained. In one embodiment, the method comprises acquiring nuclear magnetic resonance data from porous media; inverting the nuclear magnetic resonance data via a global optimization algorithm to determine a proton density distribution within the porous media; and outputting the determined proton density distribution.

    摘要翻译: 计算机实现的方法能够获得质子密度分布。 在一个实施例中,该方法包括从多孔介质获取核磁共振数据; 通过全局优化算法反转核磁共振数据,以确定多孔介质内的质子密度分布; 并输出确定的质子密度分布。

    METHOD FOR CREATING A 3D ROCK REPRESENTATION USING PETROPHYSICAL DATA
    2.
    发明申请
    METHOD FOR CREATING A 3D ROCK REPRESENTATION USING PETROPHYSICAL DATA 有权
    使用PETROPHYSICAL数据创建3D岩石表示的方法

    公开(公告)号:US20110066404A1

    公开(公告)日:2011-03-17

    申请号:US12561083

    申请日:2009-09-16

    IPC分类号: G06F17/50 G06F17/14

    CPC分类号: G01V11/00

    摘要: The present invention enables the use of a global optimization method for performing joint-inversion of multiple petrophysical data sets, using forward models based on first principle of physics, to generate a 3D rock representation of a subsurface rock structure. The resulting 3D rock representation captures the internal structure, and honors the measured petrophysical properties, of the subsurface rock structure. The 3D rock representation can then be used to predict additional properties not considered in the inversion, to further characterize the subsurface rock structure.

    摘要翻译: 本发明能够使用全局优化方法来使用基于物理学的第一原理的前向模型来执行多个岩石物理数据集的联合反演,以产生地下岩石结构的3D岩石表示。 所得到的3D岩石表征捕获了地下岩石结构的内部结构,并且证明了测量的岩石物理性质。 然后可以使用3D岩石表示来预测反演中未考虑的附加属性,以进一步表征地下岩石结构。

    System and method for multi-phase segmentation of density images representing porous media
    3.
    发明授权
    System and method for multi-phase segmentation of density images representing porous media 有权
    表示多孔介质的密度图像的多相分割系统和方法

    公开(公告)号:US08861814B2

    公开(公告)日:2014-10-14

    申请号:US12976947

    申请日:2010-12-22

    IPC分类号: G06K9/00 G01N23/04 G01N15/08

    摘要: A system and method for multi-phase segmentation of noisy 3D x-ray tomography images representative of porous material minimizing data smoothing which processes 3D x-ray tomography images to obtain a standardized intensity image, segments the standardized intensity image into at least 3 phases, calculates volumetric fractions and spatial distributions of the segmented phases and compares them with target values, and if the calculated fractions are not close enough to the target values, repeats the necessary segmentation steps until the calculated volumetric fractions are within a given tolerance to the target values. The segmentation steps include computing a median/mean-filtered-gradient image of the standardized intensity image, creating an intensity vs. gradient graph from the median/mean-filtered-gradient image and the standardized intensity image, partitioning the intensity vs. gradient graph into at least 3 regions, using thresholds defining the regions to segment the standardized grey scale image to create a segmented image, and applying a despeckler filter to remove noise in the segmented image.

    摘要翻译: 一种用于多阶段分割噪声的3D X射线断层摄影图像的系统和方法,其代表多孔材料最小化数据平滑,其处理3D X射线断层摄影图像以获得标准化强度图像,将标准化强度图像分割成至少3个阶段, 计算分段相的体积分数和空间分布,并将其与目标值进行比较,如果计算的分数不足够接近目标值,则重复必要的分段步骤,直到计算的体积分数在给定的目标值的公差内 。 分割步骤包括计算标准化强度图像的中值/平均滤波梯度图像,从中值/平均滤波梯度图像和标准化强度图像创建强度对梯度图,分割强度与梯度图 进入至少3个区域,使用限定区域的阈值来分割标准化灰度图像以产生分割图像,以及应用去斑滤波器以去除分割图像中的噪声。

    Method for creating a 3D rock representation using petrophysical data
    4.
    发明授权
    Method for creating a 3D rock representation using petrophysical data 有权
    使用岩石物理数据创建3D岩石表征的方法

    公开(公告)号:US08818778B2

    公开(公告)日:2014-08-26

    申请号:US12561083

    申请日:2009-09-16

    IPC分类号: G06G7/48 G01V11/00

    CPC分类号: G01V11/00

    摘要: The present invention enables the use of a global optimization method for performing joint-inversion of multiple petrophysical data sets, using forward models based on first principle of physics, to generate a 3D rock representation of a subsurface rock structure. The resulting 3D rock representation captures the internal structure, and honors the measured petrophysical properties, of the subsurface rock structure. The 3D rock representation can then be used to predict additional properties not considered in the inversion, to further characterize the subsurface rock structure.

    摘要翻译: 本发明能够使用全局优化方法来使用基于物理学的第一原理的前向模型来执行多个岩石物理数据集的联合反演,以产生地下岩石结构的3D岩石表示。 所得到的3D岩石表征捕获了地下岩石结构的内部结构,并且证明了测量的岩石物理性质。 然后可以使用3D岩石表示来预测反演中未考虑的附加属性,以进一步表征地下岩石结构。

    SYSTEM AND METHOD FOR MULTI-PHASE SEGMENTATION OF DENSITY IMAGES REPRESENTING POROUS MEDIA
    5.
    发明申请
    SYSTEM AND METHOD FOR MULTI-PHASE SEGMENTATION OF DENSITY IMAGES REPRESENTING POROUS MEDIA 有权
    用于表示多媒体的密度图像的多相分段的系统和方法

    公开(公告)号:US20120163688A1

    公开(公告)日:2012-06-28

    申请号:US12976947

    申请日:2010-12-22

    IPC分类号: G06K9/40

    摘要: A system and method for multi-phase segmentation of noisy 3D x-ray tomography images representative of porous material minimizing data smoothing which processes 3D x-ray tomography images to obtain a standardized intensity image, segments the standardized intensity image into at least 3 phases, calculates volumetric fractions and spatial distributions of the segmented phases and compares them with target values, and if the calculated fractions are not close enough to the target values, repeats the necessary segmentation steps until the calculated volumetric fractions are within a given tolerance to the target values. The segmentation steps include computing a median/mean-filtered-gradient image of the standardized intensity image, creating an intensity vs. gradient graph from the median/mean-filtered-gradient image and the standardized intensity image, partitioning the intensity vs. gradient graph into at least 3 regions, using thresholds defining the regions to segment the standardized grey scale image to create a segmented image, and applying a despeckler filter to remove noise in the segmented image.

    摘要翻译: 一种用于多阶段分割噪声的3D X射线断层摄影图像的系统和方法,其代表多孔材料最小化数据平滑,其处理3D X射线断层摄影图像以获得标准化强度图像,将标准化强度图像分割成至少3个阶段, 计算分段相的体积分数和空间分布,并将其与目标值进行比较,如果计算的分数不足够接近目标值,则重复必要的分段步骤,直到计算的体积分数在给定的目标值的公差内 。 分割步骤包括计算标准化强度图像的中值/平均滤波梯度图像,从中值/平均滤波梯度图像和标准化强度图像创建强度对梯度图,分割强度与梯度图 进入至少3个区域,使用限定区域的阈值来分割标准化灰度图像以产生分割图像,以及应用去斑滤波器以去除分割图像中的噪声。