Journal
MAGNETIC RESONANCE IMAGING
Volume 56, Issue -, Pages 19-23Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.mri.2018.10.008
Keywords
Pore size; Surface relaxivity; Porous media
Funding
- Beijing Natural Science Foundation [8184084]
- National Natural Science Foundation of China [21427812]
- Science Foundation of China University of Petroleum, Beijing [2462015YJRC003]
- 111 Program [B13010]
Ask authors/readers for more resources
Pore size distribution and surface relaxivity are two important properties of porous media such as rock samples and can be obtained by NMR methods. However, it is difficult to obtain these information beyond the fast diffusion limit. Here we present a new method to directly characterize the averaged pore size of a porous sample with a narrow pore size distribution. This method is based on the parallel plates pore model and the T-2-T-2 correlation sequence. The pore size (a) - surface relaxivity (rho) correlation maps were obtained using the non-negative least squares method. Three kinds of glass bead samples were measured and the averaged pore size and surface relaxivity were extracted.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available