A preliminary conceptual model of the East Mesa hydrothermal system is developed and a subregion selected for quantitative modeling. An axisymetric model approximating the data available within the subregion is used together with a reservoir simulator to develop a computer model simulating the natural flow of heat and fluid mass within this geometric constraint. The axisymmetric calculations demonstrate that the balance between the convective and conductive modes of heat transport required to match the temperature and heat flow data implies a very low effective formation vertical permeability throughout the system.

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Copyright 1979, Stanford Geothermal Program: Readers who download papers from this site should honor the copyright of the original authors and may not copy or distribute the work further without the permission of the original publisher.