Istituto di Geoscienze e Georisorse     
Tsypkin G., Calore C. Influence of capillary forces on water injection into hot rock, saturated with superheated vapour. In: International Journal of Heat and Mass Transfer, vol. 50 (15-16) pp. 3195 - 3202. Elsevier, 2007.
The results of a theoretical study and numerical analysis of the role of capillary pressure of cold water injection into depleted geothermal reservoirs are presented. A simplified 1-D mathematical model is developed, that describes the motion of a sharp vaporization front. Some asymptotic estimates for a wide range of parameters are given and a similarity solution is derived. Analytical results are then compared with those obtained from the numerical reservoir simulator TOUGH2, showing a good agreement between the two.
URL: http://https://www.journals.elsevier.com/international-journal-of-heat-and-mass-transfer/
Subject water injection
capillary pressure
analytical solution
numerical simulation
geothermal studies

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