Towards an integrated simulator for enhanced geothermal reservoirs

Xing, H.L., Gao, J., Zhang, J. and Liu, Y. (2010). Towards an integrated simulator for enhanced geothermal reservoirs. In: , Proceedings World Geothermal Congress 2010. World Geothermal Congress 2010, Bali, Indonesia, (3224-3234). 25-29 April 2010.

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Author Xing, H.L.
Gao, J.
Zhang, J.
Liu, Y.
Title of paper Towards an integrated simulator for enhanced geothermal reservoirs
Conference name World Geothermal Congress 2010
Conference location Bali, Indonesia
Conference dates 25-29 April 2010
Proceedings title Proceedings World Geothermal Congress 2010
Place of Publication Italy
Publisher ICS UNIDO
Publication Year 2010
Sub-type Fully published paper
Start page 3224
End page 3234
Total pages 11
Collection year 2011
Language eng
Abstract/Summary This paper introduces the current state in computer modelling of geothermal reservoir system and then focuses on our research efforts in high performance simulation of enhanced geothermal reservoir system. PANDAS - Parallel Adaptive static/dynamic Nonlinear Deformation Analysis System - a novel supercomputer simulation tool has been developing for simulating the highly non-linear coupled geomechanical-fluid flow-thermal systems involving heterogeneously fractured geomaterials at different spatial and temporal scales. It is applied to simulate and visualise the enhanced geothermal system (EGS), such as (1) visualisation of the microseismic events to monitor and determine where/how the underground rupture proceeds during a hydraulic stimulation, to generate the mesh using the recorded data for determining the domain of the ruptured zone and to evaluate the material parameters (i.e. the permeability) for the further numerical analysis; (2) converting the available fractured rock image/fracture data to lattice grid and further simulating the fluid flow in the complicated fractures involving the detailed description of fracture dimension and geometry by the Lattice Boltzmann method; (3) interacting fault system simulation to determine the relevant complicated dynamic rupture process; (4) multiphase coupled thermo-fluid flow analysis of a geothermal reservoir system. A few of benchmark and application examples are presented to show its accuracy, stability and usefulness in simulating the enhanced geothermal reservoir system.
Subjects 040404 Geothermics and Radiometrics
040402 Geodynamics
850502 Geothermal Energy
Keyword Integrated reservoir simulation
High performance computing
Finite element method
Lattice Boltzmann method
Microseismicity
Permeability
Enhanced geothermal reservoirs
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Presented in session 32. Software for Geothermal Applications

 
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Created: Mon, 21 Mar 2011, 11:03:22 EST by Ashleigh Paroz on behalf of Earth Systems Science Computational Centre