Fully Coupled Geomechanics and Discrete Flow Network Modeling of Hydraulic Fracturing for Geothermal Applications

Abstract

The primary objective of our current research is to develop a computational test bed for evaluating borehole techniques to enhance fluid flow and heat transfer in enhanced geothermal systems (EGS). Simulating processes resulting in hydraulic fracturing and/or the remobilization of existing fractures, especially the interaction between propagating fractures and existing fractures, represents a critical goal of our project. This paper details the basic methodology of our approach. Two numerical examples showing the capability and effectiveness of our simulator are also presented.

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Additional Info

DOE Project Name: Stimulation of Complex Fracture Systems in Low Pressure Reservoirs for Development of Enhanced Geothermal Systems
DOE Project Number: AID 19979
DOE Project Lead: Eric Hass
Last Updated: over a year ago
Jan
2011
Data from January, 2011
Submitted Feb 7, 2013

Contact

Lawrence Livermore National Laboratory


Status

Publicly accessible License 

Authors

Pengcheng Fu
Lawrence Livermore National Laboratory
Scott M. Johnson
Lawrence Livermore National Laboratory
Yue Hao
Lawrence Livermore National Laboratory
Charles R. Carrigan
Lawrence Livermore National Laboratory

Keywords

geothermal, geothermal reservoir modeling, hydraulic fracturing, discrete flow network, fluid flow, heat transfer, enhanced geothermal system, egs, non-isothermal unsaturated flow and transport, nuft code

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