Proceedings of the National Academy of Sciences· 2013Q1
Real-time 3D imaging of Haines jumps in porous media flow
- 661citations
- Q1SCImago
- 2013year
Short summary
Direct 3D imaging reveals Haines jumps cascade through 10-20 pores, accounting for 64% of energy dissipation in porous media flow.
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Key points
- High-speed X-ray computed microtomography enabled real-time 3D imaging of pore-scale fluid displacement in porous rock.
- Haines jumps were observed to cascade through 10-20 pores per event, not just a single pore.
- These cascading Haines jumps account for 64% of the total energy dissipation.
- The findings provide a more detailed understanding of hysteresis, snap-off, and nonwetting phase entrapment.
AI-generated from the title and abstract; the full text is not read.
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.
The authors' abstract, as published at the source. Proceedings of the National Academy of Sciences, 2013 · DOI ↗
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Field: Ocean Engineering
Ocean EngineeringEngineering