气候变化领域集成服务门户(CCPortal): Comparison of various 3D pore space reconstruction methods and implications on transport properties of nanoporous rocks

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DOI	10.1016/j.advwatres.2020.103615
	Comparison of various 3D pore space reconstruction methods and implications on transport properties of nanoporous rocks
	Tinet A.-J.; Corlay Q.; Collon P.; Golfier F.; Kalo K.
发表日期	2020
ISSN	0309-1708
卷号	141
英文摘要	Understanding fluid flow and transport within clay rock is essential for predicting caprock integrity in underground gas storage or as host rock in deep radioactive waste storage. The connectivity and topology of the nanopore space, which drive the transfer mechanisms of these materials, are still poorly known and direct 3D imaging is particularly challenging. In this work, we investigate and compare different stochastic reconstruction approaches based on two-point and multiple-point statistics (MPS) methods and using information from 2D training images for 3D volume rendering at submicron scale. A particular emphasis is given to the maximal critical distance of sampling between two consecutive 2D images which is necessary to obtain a coherent 3D reconstruction of the nanopore structure. We assess how these realizations honour various crucial transport properties of material, namely permeability, effective diffusion and longitudinal dispersion. Morphological features such as pore volume, specific surface, Euler characteristic and tortuosity are used to analyze the results. The methods are employed on a synthetic clay of nanometric porosity for which FIB-SEM images are available. Results indicate that the 3DA-MPS and weighted-3DA-MPS approaches are the most suited for preserving pore space features and transport properties, the choice depending on the level of conditioning data available. © 2020
关键词	Digital storage Flow of fluids Image reconstruction Nanopores Radioactive waste transportation Stochastic systems Underground gas storage Volume rendering 3d volume renderings Effective diffusion Euler characteristic Longitudinal dispersions Morphological features Multiple-point statistics Stochastic reconstruction Transfer mechanisms Transport properties comparative study connectivity fluid flow permeability pore space reconstruction rock mechanics topology transport process
语种	英语
来源机构	Advances in Water Resources
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131784
推荐引用方式 GB/T 7714	Tinet A.-J.,Corlay Q.,Collon P.,et al. Comparison of various 3D pore space reconstruction methods and implications on transport properties of nanoporous rocks[J]. Advances in Water Resources,2020,141.
APA	Tinet A.-J.,Corlay Q.,Collon P.,Golfier F.,&Kalo K..(2020).Comparison of various 3D pore space reconstruction methods and implications on transport properties of nanoporous rocks.,141.
MLA	Tinet A.-J.,et al."Comparison of various 3D pore space reconstruction methods and implications on transport properties of nanoporous rocks".141(2020).