Application of Thermal Depletion Model to Geothermal Reservoirs with Fracture and Pore Permeability

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The useful lifetime of a geothermal resource is usually calculated by assuming fluid will be produced from and reinjected into a uniform porous medium. However, most geothermal systems are found in fractured rock. If the reinjection and production wells intersect connected fractures, then reinjected fluid may cool the production wells much sooner than would be predicted from calculations of flow in a porous medium. We have developed a “quick and dirty” method for calculating how much sooner that cooling will occur (Kasameyer and Schroeder, 1975, 1976). In this paper, we discuss the basic assumptions of the method, and show how ... continued below

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290-298

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Kasameyer, P.W. & Schroeder, R.C. December 1, 1976.

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The useful lifetime of a geothermal resource is usually calculated by assuming fluid will be produced from and reinjected into a uniform porous medium. However, most geothermal systems are found in fractured rock. If the reinjection and production wells intersect connected fractures, then reinjected fluid may cool the production wells much sooner than would be predicted from calculations of flow in a porous medium. We have developed a “quick and dirty” method for calculating how much sooner that cooling will occur (Kasameyer and Schroeder, 1975, 1976). In this paper, we discuss the basic assumptions of the method, and show how it can be applied to the Salton Geothermal Field, the Raft River System, and to reinjection of supersaturated fluids. 6 refs., 6 figs.

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290-298

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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-20-39
  • Grant Number: E043-326-PA-50
  • Office of Scientific & Technical Information Report Number: 887410
  • Archival Resource Key: ark:/67531/metadc885737

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  • December 1, 1976

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 2, 2016, 8:18 p.m.

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Kasameyer, P.W. & Schroeder, R.C. Application of Thermal Depletion Model to Geothermal Reservoirs with Fracture and Pore Permeability, article, December 1, 1976; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc885737/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.