Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir

Norihiro Watanabe; Björn Zehner; Wenqing Wang; Christopher I. McDermott; Takeo Taniguchi; Olaf Kolditz

Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir

Norihiro Watanabe, Björn Zehner, Wenqing Wang, Christopher I. McDermott, Takeo Taniguchi, Olaf Kolditz

Center for Safe and Disaster-Resistant Society

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

We present an uncertainty analysis of thermo-hydro-mechanical (THM) coupled processes in a typical hot-dry-rock reservoir in crystalline rock. The conceptual model is an equivalent porous media approach which is adequate for available data from the Urach Spa and Falkenberg sites (Germany). The finite element method (FEM) is used for the numerical analysis or fully coupled THM processes, including thermal water flow, advective-diffusive heat transport, and thermo-poro-elasticity. Reservoir parameters are considered as spatial random variables and their realizations are generated using conditional Gaussian simulation. The results show the influence of parameter ranges on the reservoir evolution during long-term heat extraction taking into account fully coupled THM processes. We found that the most significant factors are permeability and heat capacity variations. The study demonstrates the importance of taking parameter uncertainties into account for geothermal reservoir evaluation in order to assess the predictability of numerical modelling.

Original language	English
Title of host publication	Calibration and Reliability in Groundwater Modelling
Subtitle of host publication	Managing Groundwater and the Environment, ModelCARE 2009
Pages	57-62
Number of pages	6
Publication status	Published - Dec 1 2011
Event	7th International Conference on Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009 - Wuhan, China Duration: Sep 20 2009 → Sep 23 2009

Publication series

Name	IAHS-AISH Publication
Volume	341
ISSN (Print)	0144-7815

Other

Other	7th International Conference on Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009
Country	China
City	Wuhan
Period	9/20/09 → 9/23/09

Keywords

Hot-dry-rock geothermal reservoir
Monte-Carlo simulation
Thermo-hydro- mechanical coupled processes
Uncertainty analysis
Visualization

ASJC Scopus subject areas

Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir'. Together they form a unique fingerprint.

Cite this

Watanabe, N., Zehner, B., Wang, W., McDermott, C. I., Taniguchi, T., & Kolditz, O. (2011). Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir. In Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009 (pp. 57-62). (IAHS-AISH Publication; Vol. 341).

Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir. / Watanabe, Norihiro; Zehner, Björn; Wang, Wenqing; McDermott, Christopher I.; Taniguchi, Takeo; Kolditz, Olaf.

Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009. 2011. p. 57-62 (IAHS-AISH Publication; Vol. 341).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Watanabe, N, Zehner, B, Wang, W, McDermott, CI, Taniguchi, T & Kolditz, O 2011, Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir. in Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009. IAHS-AISH Publication, vol. 341, pp. 57-62, 7th International Conference on Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009, Wuhan, China, 9/20/09.

Watanabe, Norihiro ; Zehner, Björn ; Wang, Wenqing ; McDermott, Christopher I. ; Taniguchi, Takeo ; Kolditz, Olaf. / Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir. Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009. 2011. pp. 57-62 (IAHS-AISH Publication).

@inproceedings{5bd949e380e945fda0c48e6c5881f616,

title = "Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir",

abstract = "We present an uncertainty analysis of thermo-hydro-mechanical (THM) coupled processes in a typical hot-dry-rock reservoir in crystalline rock. The conceptual model is an equivalent porous media approach which is adequate for available data from the Urach Spa and Falkenberg sites (Germany). The finite element method (FEM) is used for the numerical analysis or fully coupled THM processes, including thermal water flow, advective-diffusive heat transport, and thermo-poro-elasticity. Reservoir parameters are considered as spatial random variables and their realizations are generated using conditional Gaussian simulation. The results show the influence of parameter ranges on the reservoir evolution during long-term heat extraction taking into account fully coupled THM processes. We found that the most significant factors are permeability and heat capacity variations. The study demonstrates the importance of taking parameter uncertainties into account for geothermal reservoir evaluation in order to assess the predictability of numerical modelling.",

keywords = "Hot-dry-rock geothermal reservoir, Monte-Carlo simulation, Thermo-hydro- mechanical coupled processes, Uncertainty analysis, Visualization",

author = "Norihiro Watanabe and Bj{\"o}rn Zehner and Wenqing Wang and McDermott, {Christopher I.} and Takeo Taniguchi and Olaf Kolditz",

year = "2011",

month = dec,

day = "1",

language = "English",

isbn = "9781907161155",

series = "IAHS-AISH Publication",

pages = "57--62",

booktitle = "Calibration and Reliability in Groundwater Modelling",

note = "7th International Conference on Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009 ; Conference date: 20-09-2009 Through 23-09-2009",

}

TY - GEN

T1 - Numerical analysis and visualization of uncertainty effects in thermo-hydro-mechanical coupled processes in a hot-dry-rock geothermal reservoir

AU - Watanabe, Norihiro

AU - Zehner, Björn

AU - Wang, Wenqing

AU - McDermott, Christopher I.

AU - Taniguchi, Takeo

AU - Kolditz, Olaf

PY - 2011/12/1

Y1 - 2011/12/1

N2 - We present an uncertainty analysis of thermo-hydro-mechanical (THM) coupled processes in a typical hot-dry-rock reservoir in crystalline rock. The conceptual model is an equivalent porous media approach which is adequate for available data from the Urach Spa and Falkenberg sites (Germany). The finite element method (FEM) is used for the numerical analysis or fully coupled THM processes, including thermal water flow, advective-diffusive heat transport, and thermo-poro-elasticity. Reservoir parameters are considered as spatial random variables and their realizations are generated using conditional Gaussian simulation. The results show the influence of parameter ranges on the reservoir evolution during long-term heat extraction taking into account fully coupled THM processes. We found that the most significant factors are permeability and heat capacity variations. The study demonstrates the importance of taking parameter uncertainties into account for geothermal reservoir evaluation in order to assess the predictability of numerical modelling.

AB - We present an uncertainty analysis of thermo-hydro-mechanical (THM) coupled processes in a typical hot-dry-rock reservoir in crystalline rock. The conceptual model is an equivalent porous media approach which is adequate for available data from the Urach Spa and Falkenberg sites (Germany). The finite element method (FEM) is used for the numerical analysis or fully coupled THM processes, including thermal water flow, advective-diffusive heat transport, and thermo-poro-elasticity. Reservoir parameters are considered as spatial random variables and their realizations are generated using conditional Gaussian simulation. The results show the influence of parameter ranges on the reservoir evolution during long-term heat extraction taking into account fully coupled THM processes. We found that the most significant factors are permeability and heat capacity variations. The study demonstrates the importance of taking parameter uncertainties into account for geothermal reservoir evaluation in order to assess the predictability of numerical modelling.

KW - Hot-dry-rock geothermal reservoir

KW - Monte-Carlo simulation

KW - Thermo-hydro- mechanical coupled processes

KW - Uncertainty analysis

KW - Visualization

UR - http://www.scopus.com/inward/record.url?scp=84860548585&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84860548585&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84860548585

SN - 9781907161155

T3 - IAHS-AISH Publication

SP - 57

EP - 62

BT - Calibration and Reliability in Groundwater Modelling

T2 - 7th International Conference on Calibration and Reliability in Groundwater Modelling: Managing Groundwater and the Environment, ModelCARE 2009

Y2 - 20 September 2009 through 23 September 2009

ER -