Insight from Modelling Discrete Fractures Using GEOCRACK

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Conference Paper: Insight from Modelling Discrete Fractures Using GEOCRACK

Abstract
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.

Authors 
Robert DuTeaux, Daniel Swenson and Brian Hardeman






Conference 
21st Workshop on Geothermal Reservoir Engineering; Stanford, CA; 1996


Published 
Stanford University, 1996





DOI 
Not Provided
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Online 
Internet link for Insight from Modelling Discrete Fractures Using GEOCRACK

Citation

Robert DuTeaux,Daniel Swenson,Brian Hardeman. 1996. Insight from Modelling Discrete Fractures Using GEOCRACK. In: Proceedings. 21st Workshop on Geothermal Reservoir Engineering; 1996; Stanford, CA. Stanford, CA: Stanford University; p. 287-293


Related Geothermal Exploration Activities
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