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Temperature distribution around a well during thermal injection and a graphical determination of thermal properties of the aquifer

Book ·
OSTI ID:6140248
Analytic models of hot water injection into ground-water aquifers were developed in this study. Available analytic models of this problem assume that the caprock overlying the aquifer is of infinite thickness. However, many ground water aquifers have caprock thicknesses of only a few meters. This work shows 2 mathematical models which were developed to examine the influence of a caprock with finite thickness on the thermal response of an aquifer. In both models, the horizontal heat conduction and heat convection in the aquifer plus the vertical heat conduction in the caprock are considered. A graphical technique was developed for determining 4 pertinent aquifer thermal properties: (1) the horizontal thermal conductivity of the aquifer, (2) the thermal capacity of the aquifer, (3) the vertical thermal conductivity of the caprock, and (4) the thermal capacity of the caprock.
OSTI ID:
6140248
Country of Publication:
United States
Language:
English