Determination of Water Saturation in Relatively Dry Porous Media Using Gas-Phase Tracer Tests

2011 ◽  
Vol 10 (2) ◽  
pp. 634-641 ◽  
Author(s):  
M. Oostrom ◽  
G. D. Tartakovsky ◽  
T. W. Wietsma ◽  
M. J. Truex ◽  
J. H. Dane
Keyword(s):  
Porous Media ◽  
Gas Phase ◽  
Water Saturation ◽  
Tracer Tests

X-ray Microtomography Determination of Air−Water Interfacial Area−Water Saturation Relationships in Sandy Porous Media

2008 ◽  
Vol 42 (8) ◽  
pp. 2949-2956 ◽  
Author(s):  
Molly S. Costanza-Robinson ◽  
Katherine H. Harrold ◽  
Ross M. Lieb-Lappen
Keyword(s):  
Porous Media ◽  
Water Saturation ◽  
Interfacial Area ◽  
X Ray

Imaging and Resistivity Studies of Saturation Gradients in Two-Phase Flow in 3-D Porous Media

1996 ◽  
Vol 464 ◽  
Author(s):  
E. H. Kawamoto ◽  
Po-Zen Wong
Keyword(s):  
Computed Tomography ◽  
Porous Media ◽  
Two Phase Flow ◽  
Water Saturation ◽  
Glass Beads ◽  
Water Phase ◽  
Phase Flow ◽  
Two Phase ◽  
Vertical Column ◽  
X Ray

ABSTRACTWe have carried out x-ray radiography and computed tomography (CT) to study two-phase flow in 3-D porous media. Air-brine displacement was imaged for drainage and imbibition experiments in a vertical column of glass beads. By correlating water saturation Sw with resistance R, we find that there is a threshold saturation S* ≈ 0.2, above which R(SW) ∼ Sw−2, in agreement with the empirical Archie relation. This holds true for both drainage and imbibition with littlehysteresis, provided that Sw remains above S*. Should Sw drop below S* during drainage, R(Sw) rises above the Archie prediction, exhibiting strong hysteresis upon reimbibition. This behavior suggests a transition in the connectivity of the water phase near S*, possibly due to percolation effects.

New method for determination of heats of thermal gas-phase reactions yielding intermediates

1996 ◽  
Vol 45 (1) ◽  
pp. 56-59
Author(s):  
N. N. Buravtsev ◽  
Yu. A. Kolbanovskii ◽  
A. A. Ovsyannikov
Keyword(s):  
Gas Phase ◽  
New Method ◽  
Gas Phase Reactions
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