Title:

Some Effects of Non-Condensable Gas in Geothermal Reservoirs with Steam-Water Counterflow

Authors:

R. McKibbin, Karsten Pruess

Conference:

Stanford Geothermal Workshop

Year:

1988

Session:

Modelling with Non-Condensable Gases

Language:

English

File Size:

497KB

View File:

Abstract:

A mathematical model is developed for fluid and heat flow in two-phase geothermal reservoirs containing noncondensible gas (CO2). Vertical profiles of temperature, pressures and phase saturations in steady-state conditions are obtained by numerically integrating the coupled ordinary differential equations describing conserm tion of water, CO2, and energy. Solutions including binary diffusion effects in the gas phase are generated for cases with net mass throughflow as well as for balanced liquid-vapor counterflow. Calculated examples illustrate some fundamental characteristics of two-phase heat transmission systems with non-condensible gas.


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