Modelling characteristic properties of sandstones
Modelling characteristic properties of sandstones
复制标题
砂岩特性建模
DOI：
--
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
G. Matthews
中科院分区：
文献类型：
--
作者：
M. Spearing;G. Matthews
描述了多孔介质的计算机模型。它是用FORTRAN编写的，由立方体和圆柱体组成的三维阵列，分别代表孔隙和喉道。裂隙砂岩是一种相对无粘土、特征较好的岩石，其孔隙尺寸分布（p.s.d）是根据裂隙砂岩的汞孔测量曲线计算的。从程序中计算表面积和孔隙度，并模拟原始孔隙度曲线作为p.s.d的检查。然后通过加权随机遍历模型模拟砂岩的扭曲系数的50个值。然后将扭曲度定义为结果分布的中位数。对假设势场的两种不同情况下的扭曲度进行了模拟。
A computer model of a porous medium is described. Written in FORTRAN, it consists of a three-dimensional array of cubes and cylinders representing pores and throats, respectively. The pore-size distribution (p.s.d.) is calculated from the mercury porosimetry curve of Clashac outcrop sandstone, a relatively clay-free, well characterised rock. Surface area and porosity are calculated from the program and the original porosimetry curve is simulated as a check of the p.s.d. Fifty values of the tortuosity factor of the sandstone are then simulated via a weighted random walk through the model. The tortuosity is then defined as the median of the resulting distribution. The tortuosity is simulated for two different cases of an assumed potential field.