On instability during immiscible displacement in fractures and porous media

Existing linear theories for the onset of instability during immiscible fluid displacement in fractures and porous media are generalized to account for arbitrary fracture, mean flow, and fluid interface orientations. The generalized analysis shows that contrary to common belief, the interface is not...

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Veröffentlicht in:Water resources research 1996-06, Vol.32 (6), p.1891-1894
Hauptverfasser: Neuman, Shlomo P., Chen, Guoliang
Format: Artikel
Sprache:eng
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Zusammenfassung:Existing linear theories for the onset of instability during immiscible fluid displacement in fractures and porous media are generalized to account for arbitrary fracture, mean flow, and fluid interface orientations. The generalized analysis shows that contrary to common belief, the interface is not perpendicular (and hence incipient fingers do not extend in parallel) to the mean direction of displacement except in special cases.
ISSN:0043-1397
1944-7973
DOI:10.1029/96WR00789