Real-time 3D imaging of Haines jumps in porous media flow.
Détails
ID Serval
serval:BIB_49F30214261D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Real-time 3D imaging of Haines jumps in porous media flow.
Périodique
Proceedings of the National Academy of Sciences of the United States of America
ISSN
1091-6490 (Electronic)
ISSN-L
0027-8424
Statut éditorial
Publié
Date de publication
2013
Volume
110
Numéro
10
Pages
3755-3759
Langue
anglais
Notes
Publication types: Journal ArticlePublication Status: ppublish
Résumé
Newly developed high-speed, synchrotron-based X-ray computed microtomography enabled us to directly image pore-scale displacement events in porous rock in real time. Common approaches to modeling macroscopic fluid behavior are phenomenological, have many shortcomings, and lack consistent links to elementary pore-scale displacement processes, such as Haines jumps and snap-off. Unlike the common singular pore jump paradigm based on observations of restricted artificial capillaries, we found that Haines jumps typically cascade through 10-20 geometrically defined pores per event, accounting for 64% of the energy dissipation. Real-time imaging provided a more detailed fundamental understanding of the elementary processes in porous media, such as hysteresis, snap-off, and nonwetting phase entrapment, and it opens the way for a rigorous process for upscaling based on thermodynamic models.
Pubmed
Web of science
Open Access
Oui
Création de la notice
21/04/2013 8:34
Dernière modification de la notice
20/08/2019 13:57