One-Dimensional Convective and Conductive Geothermal Heat Flow

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A number of research workers have investigated two- and three-dimensional natural convective heat flow in porous media containing a single-phase fluid. Results indicate that convective heat flow in geothermal reservoirs can be high with low geothermal gradients within the convection cells. Single-phase convection can occur only in two or three dimensions; however, it is evident that steam and hot water sometimes exist simultaneously in geothermal areas. The large difference in density between steam and hot water provides a driving force that tends to segregate the two phases, making countercurrent vertical one-dimensional fluid flow theoretically possible. This paper presents the results ... continued below

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251-262

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Martin, J.C.; Wegner, R.E. & Kelsey, F.J. December 1, 1976.

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Description

A number of research workers have investigated two- and three-dimensional natural convective heat flow in porous media containing a single-phase fluid. Results indicate that convective heat flow in geothermal reservoirs can be high with low geothermal gradients within the convection cells. Single-phase convection can occur only in two or three dimensions; however, it is evident that steam and hot water sometimes exist simultaneously in geothermal areas. The large difference in density between steam and hot water provides a driving force that tends to segregate the two phases, making countercurrent vertical one-dimensional fluid flow theoretically possible. This paper presents the results of a study of one-dimensional, vertical, two phase, steady-state, geothermal fluid and heat flow. The object of the investigation was to understand the one-dimensional convective heat flow that may occur where conditions have been stable long enough for the flow to approach steady-state. Results presented herein apply to unfractured porous media. Similar results should apply to fractured reservoirs and permeable fault zones. 3 refs., 8 figs.

Physical Description

251-262

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  • Proceedings Second Workshop Geothermal Reservoir Engineering, Stanford University, Stanford, Calif., December 1-3, 1976

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  • Report No.: SGP-TR-20-36
  • Grant Number: E043-326-PA-50
  • Office of Scientific & Technical Information Report Number: 887406
  • Archival Resource Key: ark:/67531/metadc885899

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  • December 1, 1976

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 8, 2016, 8:51 p.m.

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Martin, J.C.; Wegner, R.E. & Kelsey, F.J. One-Dimensional Convective and Conductive Geothermal Heat Flow, article, December 1, 1976; United States. (digital.library.unt.edu/ark:/67531/metadc885899/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.