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A rapid method for the measurement and estimation of CO2 diffusivity in liquid hydrocarbon-saturated porous media using MRI.

Abstract：

: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.

journal_name

Magn Reson Imaging

journal_title

Magnetic resonance imaging

authors

Zhao Y,Chen J,Yang M,Liu Y,Song Y

doi

10.1016/j.mri.2015.12.024

subject

Has Abstract

pub_date

2016-05-01 00:00:00

pages

437-41

issue

4

eissn

0730-725X

issn

1873-5894

pii

S0730-725X(15)00319-7

journal_volume

34

pub_type

杂志文章

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