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DOE OSTI · 1978733

Avalanches in strong imbibition

Primkulov, Bauyrzhan K.·Zhao, Benzhong·MacMinn, Christopher W.·Juanes, Ruben
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Abstract

Slow injection of non-wetting fluids (drainage) and strongly wetting fluids (strong imbibition) into porous media are two contrasting processes in many respects: the former must be forced into the pore space, while the latter imbibe spontaneously; the former occupy pore bodies, while the latter coat crevices and corners. These two processes also produce distinctly different displacement patterns. However, both processes evolve via a series of avalanche-like invasion events punctuated by quiescent periods. Here, we show that, despite their mechanistic differences, avalanches in strong imbibition exhibit all the features of self-organized criticality previously documented for drainage, including the correlation scaling describing the space-time statistics of invasion at the pore scale.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICSapplied physicsfluid dynamics

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Primkulov, Bauyrzhan K., Zhao, Benzhong, MacMinn, Christopher W., Juanes, Ruben. 2022-03-11. Avalanches in strong imbibition. https://doi.org/10.1038/s42005-022-00826-1

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