Transport of volatile compounds in porous media in the presence of a trapped gas phase

摘要

the presence of an immobile gaseous phase in an otherwise-saturated porous medium affects the transport of volatile compounds. The linear theory of partitioning tracers suggests that a volatile tracer introduced into such a system should be retarded with a constant retardation factor, Using high concentrations, however, the saturation of the gaseous phase will change as an effect Of the tracer test itself.