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    • 9. 发明申请
    • METHOD AND SYSTEM FOR ESTIMATING ROCK PROPERTIES FROM ROCK SAMPLES USING DIGITAL ROCK PHYSICS IMAGING
    • 使用数字岩石物理成像从岩石样品估算岩石性质的方法和系统
    • WO2013173540A1
    • 2013-11-21
    • PCT/US2013/041276
    • 2013-05-16
    • INGRAIN, INC.
    • DVORKIN, JackDERZHI, Naum
    • G06T7/00
    • G01N33/24E21B47/00G01N33/241G06T7/0004
    • A method is provided for efficiently characterizing rock traversed while drilling a borehole for hydrocarbon reservoir development. A rock sample can be obtained having a provenance of collection linked to a specific region of the borehole, which is scanned to obtain a 2D digital image that is segmented to pixels characterized as pore space and as mineral matrix and defining a boundary between them. A transform relationship, for example, a form of the Kozeny-Carman equation adapted for application to a 2D segmented image environment, can be applied to calculate the estimated value for a target rock property, which can be absolute permeability, relative permeability, formation factor, elasticity, bulk modulus, shear modulus, compressional velocity, shear velocity, electrical resistivity, or capillary pressure, and the estimated value is used to characterize the rock at that region of the borehole. This affords an opportunity to quickly and efficiently develop massive data directly characterizing extended regions of rock, whether traversed by the borehole in this or a related well. Computerized systems, computer readable media, and programs for performing the methods are also provided.
    • 提供了一种用于有效地表征在钻出用于油气藏开发的钻孔的岩石横穿的方法。 可以获得具有与钻孔的特定区域相关联的收集起源的岩石样品,其被扫描以获得被分割成以孔隙为特征的像素并且定义它们之间的边界的像素的2D数字图像。 可以应用变换关系,例如适用于2D分割图像环境的Kozeny-Carman方程的形式,以计算目标岩石属性的估计值,其可以是绝对磁导率,相对磁导率,形成因子 ,弹性,体积弹性模量,剪切模量,压缩速度,剪切速度,电阻率或毛细管压力,并且估计值用于表征钻孔该区域的岩石。 这提供了一个快速有效地开发大量数据的机会,直接表征岩石的延伸区域,无论是通过这个井还是相关井的钻孔。 还提供了计算机化系统,计算机可读介质和用于执行方法的程序。