title: Real-time 3D imaging of Haines jumps in porous media flow.
abstract: 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.
authors: Shell Global Solutions International B.V., 2288 GS Rijswijk, The Netherlands. steffen.berg@shell.com
authors: Steffen
authors: S
authors: Berg
authors: Holger
authors: H
authors: Ott
authors: Stephan A
authors: SA
authors: Klapp
authors: Alex
authors: A
authors: Schwing
authors: Rob
authors: R
authors: Neiteler
authors: Niels
authors: N
authors: Brussee
authors: Axel
authors: A
authors: Makurat
authors: Leon
authors: L
authors: Leu
authors: Frieder
authors: F
authors: Enzmann
authors: Jens-Oliver
authors: JO
authors: Schwarz
authors: Michael
authors: M
authors: Kersten
authors: Sarah
authors: S
authors: Irvine
authors: Marco
authors: M
authors: Stampanoni