Abstract
In the present work, fully coupled dynamic thermo-hydro-mechanical (THM) model was employed to investigate the advantage and disadvantages of supercritical CO2 (SCCO2) over water as geofluids. Low-temperature zone was found in both SCCO2-enhanced geothermal system (EGS) and water-EGS systems, but spatial expansion is higher in water-EGS. Although, the spatial expansion of SCCO2 into the rock matrix will help in the geo-sequestration, the expansion of stress and strain invaded zones were identified significantly in the vicinity of fracture and injection well. SCCO2-EGS system is giving better thermal breakthrough and geothermal life conditions compared to the water-EGS system. Reservoir flow impedance (RFI) and heat power are examined, and heat power is high in the water-EGS system. Minimum RFI is found in the SCCO2-EGS system at 45 °C and 0.05 m/s. Maximum heat power for SCCO2-EGS was observed at 35 °C, 20 MPa, and 0.15 m/s. Therefore, the developed dynamic THM model is having greater ability to examine the behavior of SCCO2-EGS and water-EGS systems effectively. The variations occur in the rock matrix, and the performance indicators are dependent on the type of fluid, injection/production velocities, initial reservoir pressure, and injection temperature. The advantages of SCCO2-EGS system over the water-EGS system provide a promising result to the geothermal industry as a geofluid.
References
1.
Zhao
, Y.
, Feng
, Z.
, Feng
, Z.
, Yang
, D.
, and Liang
, W.
, 2015
, “THM (Thermo-hydro-mechanical) Coupled Mathematical Model of Fractured Media and Numerical Simulation of a 3D Enhanced Geothermal System at 573 K and Buried Depth 6000 e 7000 M
,” Energy
, 82
, pp. 193
–205
. 2.
Sonnenthal
, E. L.
, Smith
, J. T.
, Cladouhos
, T.
, Kim
, J.
, Yang
, L.
, Division
, E. S.
, Berkeley
, L.
, Ms-c
, C. R.
, and Day
, J.
, 2015
, “Thermal-Hydrological-Mechanical-Chemical Modeling of the 2014 EGS Stimulation Experiment at Newberry Volcano, Oregon
,” 1(2012), pp. 1
–5
.3.
Vallier
, B.
, Magnenet
, V.
, Schmittbuhl
, J.
, and Fond
, C.
, 2018
, “THM Modeling of Hydrothermal Circulation at Rittershoffen Geothermal Site, France
,” Geotherm. Energy
, 6
(1
), pp. 1
–26
. 4.
Babaei
, M.
, and Nick
, H. M.
, 2019
, “Performance of Low-Enthalpy Geothermal Systems: Interplay of Spatially Correlated Heterogeneity and Well-Doublet Spacings
,” Appl. Energy
, 253
, p. 113569
. 5.
Rabemanana
, V.
, Durst
, P.
, Bächler
, D.
, Vuataz
, F. D.
, and Kohl
, T.
, 2003
, “Geochemical Modelling of the Soultz-Sous-Forêts Hot Fractured Rock System Comparison of Two Reservoirs at 3.8 and 5 Km Depth
,” Geothermics
, 32
(4
), pp. 645
–653
. 6.
Zeng
, Y.
, Tang
, L.
, Wu
, N.
, and Cao
, Y.
, 2017
, “Analysis of Influencing Factors of Production Performance of Enhanced Geothermal System: A Case Study at Yangbajing Geothermal Field
,” Energy
, 127
, pp. 218
–235
. 7.
Brown
, D.
, 2000
, “A Hot Dry Rock Geothermal Energy Concept Utilizing Supercritical CO2 Instead of Water
,” Twenty-Fifth Workshop on Geothermal Reservoir Engineering
, pp.
1
–
6
.8.
Biagi
, J.
, Agarwal
, R.
, and Zhang
, Z.
, 2015
, “Simulation and Optimization of Enhanced Geothermal Systems Using CO2 as a Working Fluid
,” Energy
, 86
, pp. 627
–637
. 9.
Zhang
, F. Z.
, Xu
, R. N.
, and Jiang
, P. X.
, 2016
, “Thermodynamic Analysis of Enhanced Geothermal Systems Using Impure CO2 as the Geofluid
,” Appl. Therm. Eng.
, 99
, pp. 1277
–1285
. 10.
Pan
, C.
, Chávez
, O.
, Romero
, C. E.
, Levy
, E. K.
, Aguilar Corona
, A.
, and Rubio-Maya
, C.
, 2016
, “Heat Mining Assessment for Geothermal Reservoirs in Mexico Using Supercritical CO2 Injection
,” Energy
, 102
, pp. 148
–160
. 11.
Zhang
, L.
, Li
, X.
, Zhang
, Y.
, Cui
, G.
, Tan
, C.
, and Ren
, S.
, 2017
, “CO2 Injection for Geothermal Development Associated With EGR and Geological Storage in Depleted High-Temperature Gas Reservoirs
,” Energy
, 123
, pp. 139
–148
. 12.
Pan
, L.
, Freifeld
, B.
, Doughty
, C.
, Zakem
, S.
, Sheu
, M.
, Cutright
, B.
, and Terrall
, T.
, 2015
, “Fully Coupled Wellbore-Reservoir Modeling of Geothermal Heat Extraction Using CO2 as the Working Fluid
,” Geothermics
, 53
, pp. 100
–113
. 13.
Olasolo
, P.
, Juárez
, M. C.
, Morales
, M. P.
, D’Amico
, S.
, and Liarte
, I. A.
, 2016
, “Enhanced Geothermal Systems (EGS): A Review
,” Renewable Sustainable Energy Rev.
, 56
, pp. 133
–144
. 14.
Liu
, S.
, Agarwal
, R.
, and Sun
, B.
, 2022
, “Numerical Simulation and Optimization of CO2 Enhanced Gas Recovery in Homogeneous and Vertical Heterogeneous Reservoir Models
,” ASME J. Energy Resour. Technol.
, 144
(3
), p. 033009
. 15.
Pandey
, S. N.
, Vishal
, V.
, and Chaudhuri
, A.
, 2018
, “Geothermal Reservoir Modeling in a Coupled Thermo-Hydro-Mechanical- Chemical Approach : A Review
,” Earth Sci. Rev.
, 185
, pp. 1157
–1169
. 16.
Pandey
, S. N.
, and Chaudhuri
, A.
, 2017
, “The Effect of Heterogeneity on Heat Extraction and Transmissivity Evolution in a Carbonate Reservoir : A Thermo-Hydro-Chemical Study
,” Geothermics
, 69
, pp. 45
–54
. 17.
Zhang
, J.
, Xie
, J.
, and Liu
, X.
, 2019
, “Numerical Evaluation of Heat Extraction for EGS With Tree-Shaped Wells
,” Int. J. Heat Mass Transfer
, 134
, pp. 296
–310
. 18.
Gläser
, D.
, Flemisch
, B.
, Helmig
, R.
, and Class
, H.
, 2019
, “A Hybrid-Dimensional Discrete Fracture Model for Non-Isothermal Two-Phase Flow in Fractured Porous Media
,” GEM - Int. J. Geomath.
, 10
(1
), pp. 5-1
–5-25
.19.
Sun
, Z.
, Xin
, Y.
, Yao
, J.
, Zhang
, K.
, Zhuang
, L.
, Zhu
, X.
, Wang
, T.
, and Jiang
, C.
, 2018
, “Numerical Investigation on the Heat Extraction Capacity of Dual Horizontal Wells in Enhanced Geothermal Systems Based on the 3-D THM Model
,” Energies
, 11
(2
), pp. 1
–19
.20.
Ghassemi
, A.
, and Suresh Kumar
, G.
, 2007
, “Changes in Fracture Aperture and Fluid Pressure Due to Thermal Stress and Silica Dissolution/Precipitation Induced by Heat Extraction From Subsurface Rocks
,” Geothermics
, 36
(2
), pp. 115
–140
. 21.
Guo
, T.
, Tang
, S.
, Sun
, J.
, Gong
, F.
, Liu
, X.
, Qu
, Z.
, and Zhang
, W.
, 2019
, “A Coupled Thermal-Hydraulic-Mechanical Modeling and Evaluation of Geothermal Extraction in the Enhanced Geothermal System Based on Analytic Hierarchy Process and Fuzzy Comprehensive Evaluation
,” Appl. Energy
, 258
, p. 113981
.22.
Watanabe
, N.
, Wang
, W.
, McDermott
, C. I.
, Taniguchi
, T.
, and Kolditz
, O.
, 2010
, “Uncertainty Analysis of Thermo-Hydro-Mechanical Coupled Processes in Heterogeneous Porous Media
,” Comput. Mech.
, 45
(4
), pp. 263
–280
. 23.
Jansen
, G.
, Valley
, B.
, and Miller
, S. A.
, 2018
, “THERMAID—A Matlab Package for Thermo-Hydraulic Modeling and Fracture Stability Analysis in Fractured Reservoirs
.”24.
Wang
, S.
, Huang
, Z.
, Wu
, Y. S.
, Winterfeld
, P. H.
, and Zerpa
, L. E.
, 2016
, “A Semi-Analytical Correlation of Thermal-Hydraulic-Mechanical Behavior of Fractures and Its Application to Modeling Reservoir Scale Cold Water Injection Problems in Enhanced Geothermal Reservoirs
,” Geothermics
, 64
, pp. 81
–95
. 25.
Lepillier
, B.
, Daniilidis
, A.
, Doonechaly Gholizadeh
, N.
, Bruna
, P. O.
, Kummerow
, J.
, and Bruhn
, D.
, 2019
, “A Fracture Flow Permeability and Stress Dependency Simulation Applied to Multi-Reservoirs, Multi-Production Scenarios Analysis
,” Geotherm. Energy
, 7
(1
), pp. 24-1
–24-16
. 26.
Dobson
, P. F.
, Kneafsey
, T. J.
, Nakagawa
, S.
, Sonnenthal
, E. L.
, Voltolini
, M.
, Smith
, J. T.
, and Borglin
, S. E.
, 2021
, “Fracture Sustainability in Enhanced Geothermal Systems: Experimental and Modeling Constraints
,” ASME J. Energy Resour. Technol.
, 143
(10
), p. 100901
. 27.
Zeng
, Y. C.
, Wu
, N. Y.
, Su
, Z.
, Wang
, X. X.
, and Hu
, J.
, 2013
, “Numerical Simulation of Heat Production Potential From Hot Dry Rock by Water Circulating Through a Novel Single Vertical Fracture at Desert Peak Geothermal Field
,” Energy
, 63
, pp. 268
–282
. 28.
Fox
, D. B.
, Sutter
, D.
, Beckers
, K. F.
, Lukawski
, M. Z.
, Koch
, D. L.
, Anderson
, B. J.
, and Tester
, J. W.
, 2013
, “Sustainable Heat Farming: Modeling Extraction and Recovery in Discretely Fractured Geothermal Reservoirs
,” Geothermics
, 46
, pp. 42
–54
. 29.
Suzuki
, A.
, Fomin
, S. A.
, Chugunov
, V. A.
, Niibori
, Y.
, and Hashida
, T.
, 2016
, “Fractional Diffusion Modeling of Heat Transfer in Porous and Fractured Media
,” Int. J. Heat Mass Transfer
, 103
, pp. 611
–618
. 30.
Pandey
, S. N.
, and Vishal
, V.
, 2017
, “Sensitivity Analysis of Coupled Processes and Parameters on the Performance of Enhanced Geothermal Systems
,” Sci. Rep.
, 7
(1
), pp. 1
–14
. 31.
Dahi Taleghani
, A.
, 2013
, “An Improved Closed-Loop Heat Extraction Method From Geothermal Resources
,” ASME J. Energy Resour. Technol.
, 135
(4
), p. 042904
. 32.
Taleghani
, A. D.
, and Ahmadi
, M.
, 2020
, “Thermoporoelastic Analysis of Artificially Fractured Geothermal Reservoirs: A Multiphysics Problem
,” ASME J. Energy Resour. Technol.
, 142
(8
), p. 081302
. 33.
Zhang
, L.
, Cui
, G.
, Zhang
, Y.
, Ren
, B.
, Ren
, S.
, and Wang
, X.
, 2016
, “Influence of Pore Water on the Heat Mining Performance of Supercritical CO2 Injected for Geothermal Development
,” J. CO2 Util.
, 16
, pp. 287
–300
. 34.
Pan
, C.
, Romero
, C. E.
, Levy
, E. K.
, Wang
, X.
, Rubio-Maya
, C.
, and Pan
, L.
, 2018
, “Fully Coupled Wellbore-Reservoir Simulation of Supercritical CO2 Injection From Fossil Fuel Power Plant for Heat Mining From Geothermal Reservoirs
,” J. CO2 Util.
, 27
, pp. 480
–492
. 35.
Qu
, Z. Q.
, Zhang
, W.
, and Guo
, T. K.
, 2017
, “Influence of Different Fracture Morphology on Heat Mining Performance of Enhanced Geothermal Systems Based on COMSOL
,” Int. J. Hydrogen Energy
, 42
(29
), pp. 18263
–18278
. 36.
Yin
, S.
, Dusseault
, M. B.
, and Rothenburg
, L.
, 2011
, “Coupled THMC Modeling of CO 2 Injection by Finite Element Methods
,” J. Pet. Sci. Eng.
, 80
(1
), pp. 53
–60
. 37.
Zhang
, F. Z.
, Jiang
, P. X.
, and Xu
, R. N.
, 2013
, “System Thermodynamic Performance Comparison of CO2-EGS and Water-EGS Systems
,” Appl. Therm. Eng.
, 61
(2
), pp. 236
–244
. 38.
Garapati
, N.
, Randolph
, J. B.
, and Saar
, M. O.
, 2015
, “Brine Displacement by CO2, Energy Extraction Rates, and Lifespan of a CO2-Limited CO2-Plume Geothermal (CPG) System With a Horizontal Production Well
,” Geothermics
, 55
, pp. 182
–194
. 39.
Chen
, Z.
, Huan
, G.
, and Ma
, Y.
, 2006
, Computational Methods for Multiphase Flows in Porous Media
, Society for Industrial and Applied Mathematics
, Philadelphia, PA
.40.
Biot
, M. A.
, 1941
, “General Theory of Three-Dimensional Consolidation
,” J. Appl. Phys.
, 12
(2
), pp. 155
–164
. 41.
Biot
, M. A.
, 1955
, “Theory of Elasticity and Consolidation for a Porous Anisotropic Solid
,” J. Appl. Phys.
, 26
(2
), pp. 182
–185
. 42.
Li
, S.
, Feng
, X. T.
, Zhang
, D.
, and Tang
, H.
, 2019
, “Coupled Thermo-Hydro-Mechanical Analysis of Stimulation and Production for Fractured Geothermal Reservoirs
,” Appl. Energy
, 247
, pp. 40
–59
. 43.
Liu
, G.
, Pu
, H.
, Zhao
, Z.
, and Liu
, Y.
, 2019
, “Coupled Thermo-Hydro-Mechanical Modeling on Well Pairs in Heterogeneous Porous Geothermal Reservoirs
,” Energy
, 171
, pp. 631
–653
. 44.
Freeman
, T. T.
, Chalaturnyk
, R. J.
, and Bogdanov
, I. I.
, 2008
, “Fully Coupled Thermo-Hydro-Mechanical Modeling by COMSOL Multiphysics, With Applications in Reservoir Geomechanical Characterization
,” COMSOL Conference
, Boston, MA
, pp. 1
–12
.45.
Freeman
, T. T.
, Chalaturnyk
, R. J.
, and Bogdanov
, I. I.
, 2008
, “THM Modeling for Reservoir Geomechanical Applications
,” Comsol Conference
, Boston, MA
.46.
Liu
, J.
, 2009
, “A Porosity-Based Model for Coupled Thermal-Hydraulic-Mechanical Processes
.”47.
Miller
, S. A.
, 2015
, “Modeling Enhanced Geothermal Systems and the Essential Nature of Large-Scale Changes in Permeability at the Onset of Slip
,” Geofluids
, 15
(1–2
), pp. 338
–349
. 48.
Touhidi-Baghini
, A.
, 1998
, “Absolute Permeability of McMurray For- Mation Oil Sands at Low Confining Stresses
.”49.
Gudala
, M.
, and Govindarajan
, S. K.
, 2021
, “Numerical Investigations on a Geothermal Reservoir Using Fully Coupled Thermo-Hydro-Geomechanics With Integrated RSM-Machine Learning and ARIMA Models
,” Geothermics
, 96
, p. 102174
. 50.
COMSOL
, 2018
, “Subsurface Flow Module User Guide (Version 5.4)
,” pp. 1
–256
.51.
Fokker
, P. A.
, 2015
, “Thermo-hydro-mechanical Modeling of EGS Using COMSOL Multiphysics
,” Proceedings of the 40th Stanford Geothermal Workshop
, Stanford, CA
, Vol. 1, pp. 1
–10
.52.
Sanaee
, R.
, Oluyemi
, G. F.
, Hossain
, M.
, and Oyeneyin
, M. B.
, 2012
, “Fracture-Matrix Flow Partitioning and Cross Flow : Numerical Modeling of Laboratory Fractured Core Flood
,” COMSOL Conference.
53.
Norouzi
, M.
, Dorrani
, S.
, Shokri
, H.
, and Anwar Bég
, O.
, 2019
, “Effects of Viscous Dissipation on Miscible Thermo-viscous Fingering Instability in Porous Media
,” Int. J. Heat Mass Transfer
, 129
, pp. 212
–223
. 54.
Gudala
, M.
, and Govindarajan
, S. K.
, 2020
, “Numerical Modelling of Coupled Single-Phase Fluid Flow and Geomechanics in a Fractured Porous Media
,” J. Pet. Sci. Eng.
, 191
, p. 107215
. 55.
Gudala
, M.
, and Govindarajan
, S. K.
, 2020
, “Numerical Modeling of Coupled Fluid Flow and Geomechanical Stresses in a Petroleum Reservoir
,” ASME J. Energy Resour. Technol.
, 142
(6
), p. 063006
. 56.
Gudala
, M.
, and Govindarajan
, S. K.
, 2021
, “Numerical Investigations on Two-Phase Fluid Flow in a Fractured Porous Medium Fully Coupled With Geomechanics
,” J. Pet. Sci. Eng.
, 199
, p. 108328
. 57.
Van Rijn
, S.
, 2018
, “Breakthrough Time of a Geothermal Reservoir (Estimating the Impact of Well Spacing, Reservoir and Operational Inputs on the Breakthrough Time of a Geothermal Doublet)
.58.
Zeng
, Y. C.
, Su
, Z.
, and Wu
, N. Y.
, 2013
, “Numerical Simulation of Heat Production Potential From Hot Dry Rock by Water Circulating Through Two Horizontal Wells at Desert Peak Geothermal Field
,” Energy
, 56
, pp. 92
–107
. 59.
Evans
, K.
, 2010
, “Enhanced/Engineered Geothermal System: An Introduction with Overviews of Deep Systems Built and Circulated to Date
,” Geothermal Energy in China: Past and Future, Geological Publishing House
, pp. 395
–418
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