论文名称：A rapid method for the measurement and estimation of CO2 diffusivity in liquid hydrocarbon-saturated porous media using MRI
论文类型：期刊论文
发表刊物：MAGNETIC RESONANCE IMAGING
收录刊物：SCIE、PubMed
卷号：34
期号：4
页面范围：437-441
ISSN号：0730-725X
关键字：Diffusivity; CO2; Porous media; Magnetic resonance imaging
摘要：In this study, magnetic resonance imaging (MRI) was used to dynamically visualize the diffusion process of CO2 in porous media saturated with liquid hydrocarbon. Based on the assumption of semi-infinite media, effective CO2 diffusivity was obtained directly by the nonlinear fitting of one MR profile during the diffusion process. These experimental findings obtained based on MRI method showed a close agreement with the conventional pressure-volume-temperature method. The novel MRI-based technique is a time-saving approach that can reduce the duration of CO2 diffusivity measurement more than 90%, and realize rapid and accurate measurement and estimation of CO2 diffusivity. (C) 2015 Elsevier Inc. All rights reserved.
发表时间：2016-05-01