Rock thermal conductivity at the cap rock and initial conditions in two-phase volcanic hydrothermal systems

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Numerical experiments are performed to investigate the rock thermal conductivity influence in the formation of the thermodynamic initial conditions of two-phase systems located in volcanic rocks. These systems exhibit pressure and temperature profiles characterized by a sudden change or discontinuity in their vertical gradients. Vapor dominated, two-phase fluids are found at the upper reservoir's levels. Liquid is the dominated phase within the layers below some critical point. Numerical results presented in this paper, suggest that the vertical location of this point of discontinuity be controlled by the thermal conductivity existing between the limit of the reservoir and the caprock. Too ... continued below

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147-152

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Arriaga, Mario Cesar Suarez January 28, 1993.

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Description

Numerical experiments are performed to investigate the rock thermal conductivity influence in the formation of the thermodynamic initial conditions of two-phase systems located in volcanic rocks. These systems exhibit pressure and temperature profiles characterized by a sudden change or discontinuity in their vertical gradients. Vapor dominated, two-phase fluids are found at the upper reservoir's levels. Liquid is the dominated phase within the layers below some critical point. Numerical results presented in this paper, suggest that the vertical location of this point of discontinuity be controlled by the thermal conductivity existing between the limit of the reservoir and the caprock. Too high values could originate liquid dominated reservoirs. Small values would be at the origin of vapor dominated reservoirs. A characteristic middle value could be responsible for the formation of a counter flow mechanism originating the initial conditions observed at some locations of the Los Azufres, Mexico, geothermal field.

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147-152

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  • Proceedings, eighteenth workshop on geothermal reservoir engineering, Stanford University, Stanford, CA, January 26-28, 1993

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  • Report No.: SGP-TR-145-21
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 888918
  • Archival Resource Key: ark:/67531/metadc885062

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  • January 28, 1993

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 7, 2016, 8:43 p.m.

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Arriaga, Mario Cesar Suarez. Rock thermal conductivity at the cap rock and initial conditions in two-phase volcanic hydrothermal systems, article, January 28, 1993; United States. (digital.library.unt.edu/ark:/67531/metadc885062/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.