Insight from modelling discrete fractures using GEOCRACK

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This work analyzes the behavior of a numerical geothermal reservoir simulation with flow only in discrete fractures. GEOCRACK is a 2-D finite element model developed at Kansas State University for the Hot Dry Rock (HDR) research at Los Alamos National Laboratory. Its numerical simulations couple the mechanics of discrete fracture behavior with the state of earth stress, fluid flow, and heat transfer. This coupled model could also be of value for modeling reinjection and other reservoir operating strategies for liquid dominated fractured reservoirs. Because fracture surfaces cool quickly by fluid convection, and heat does not conduct quickly from the interior ... continued below

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287-293

Creation Information

DuTeaux, Robert; Swenson, Daniel & Hardeman, Brian January 24, 1996.

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Description

This work analyzes the behavior of a numerical geothermal reservoir simulation with flow only in discrete fractures. GEOCRACK is a 2-D finite element model developed at Kansas State University for the Hot Dry Rock (HDR) research at Los Alamos National Laboratory. Its numerical simulations couple the mechanics of discrete fracture behavior with the state of earth stress, fluid flow, and heat transfer. This coupled model could also be of value for modeling reinjection and other reservoir operating strategies for liquid dominated fractured reservoirs. Because fracture surfaces cool quickly by fluid convection, and heat does not conduct quickly from the interior of reservoir rock, modeling the injection of cold fluid into a fractured reservoir is better simulated by a model with discrete fractures. This work contains knowledge gained from HDR reservoir simulation and continues to develop the general concept of heat mining, reservoir optimization. and the sensitivity of simulation to the uncertainties of fracture spacing and dynamic flow dispersion.

Physical Description

287-293

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  • Proceedings, Twenty-first Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, CA, January 22-24, 1996

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  • Report No.: SGP-TR-151-40
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 889825
  • Archival Resource Key: ark:/67531/metadc875930

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 24, 1996

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 29, 2016, 3:58 p.m.

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DuTeaux, Robert; Swenson, Daniel & Hardeman, Brian. Insight from modelling discrete fractures using GEOCRACK, article, January 24, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc875930/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.