ISSN:
1745-6584
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Geosciences
Notes:
In this paper we describe governing equations for fluid recovery processes in a monitoring well. The proposed formulation is based on volumetric equilibrium and multiphase Darcy flow assumptions and may be used in the analysis of bail-down tests. Through the numerical solution of the mathematical model, we demonstrate that the measurements made at the inflection point of the recovery curve, at which the water/LNAPL interface in the monitoring well changes from a rising level to a falling level, may depend on several parameters. Thus, present methods that use only the LNAPL thickness in the monitoring well at the inflection point to estimate the LNAPL thickness in the aquifer may not yield adequate estimates. Based on our analysis, we propose a new approach to estimate the LNAPL thickness in the aquifer, which relies on information on the LNAPL recovery rate in a monitoring well. In addition to the measurement of the rate of fluid recovery in a monitoring well, the proposed approach also requires information on monitoring well parameters.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1745-6584.2000.tb02705.x
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