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论文类型：会议论文

发表时间：2014-04-26

收录刊物：EI、Scopus

卷号：960-961

页面范围：254-257

摘要：In this paper, firstly, the X-ray micro computed tomography (micro-CT) is used for the analysis of internal structure of sand-packed beds. Binary data which are able to describe the pore structures of these beds were obtained from a series of imaging processing of rescaling, media filtering, and thresholding. Then a Maximal Ball (MB) algorithm is applied to these binary data to extract the equivalent pore networks. The parameters of the pore networks, such as radius, coordination number and shape factors of pore and throat are computed. The results demonstrate that the MB method can extract reasonable and faithful pore network of the different sand packed samples. Finally, the relative permeability and capillary pressure of drainage and imbibition cycle of water and oil are predicated. The numerical simulation results demonstrated good accordance with that of the experiments. Pore network simulation shows good results for two phase flow in porous media. ? (2014) Trans Tech Publications, Switzerland.