Stress analysis of a borehole in saturated rocks under in situ mechanical, hydrological and thermal interactions

J. C. Sheng; J. Liu; W. C. Zhu; D. Elsworth; J. X. Liu

doi:10.1080/00908310600712356

Stress analysis of a borehole in saturated rocks under in situ mechanical, hydrological and thermal interactions

J. C. Sheng, J. Liu, W. C. Zhu, D. Elsworth, J. X. Liu

Research output: Contribution to journal › Article › peer-review

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Abstract

A novel approach is developed to represent coupled thermal-hydraulic- mechanical (THM) behavior of porous systems that incorporates the non-isothermal free and forced convection of a single component fluid in a non-boiling thermoelastic medium. The three-way simultaneous coupling between the THM triplet is currently linear, but no restriction is placed on incorporating material nonlinearities. The coupled PDEs are solved in space by grid-adaptive finite elements. The model is validated against solutions for linear non-isothermal consolidation of a column. We demonstrate the utility of the model by analyzing the behavior of a deep wellbore in a themoelastic medium circulated by a pressurized, but chilled fluid. Model results illustrate the significant importance of the cross-couplings between individual THM processes for the evaluation of wellbore stability.

Original language	English (US)
Pages (from-to)	157-169
Number of pages	13
Journal	Energy Sources, Part A: Recovery, Utilization and Environmental Effects
Volume	30
Issue number	2
DOIs	https://doi.org/10.1080/00908310600712356
State	Published - Jan 2008

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Fuel Technology
Energy Engineering and Power Technology

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/00908310600712356

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title = "Stress analysis of a borehole in saturated rocks under in situ mechanical, hydrological and thermal interactions",

abstract = "A novel approach is developed to represent coupled thermal-hydraulic- mechanical (THM) behavior of porous systems that incorporates the non-isothermal free and forced convection of a single component fluid in a non-boiling thermoelastic medium. The three-way simultaneous coupling between the THM triplet is currently linear, but no restriction is placed on incorporating material nonlinearities. The coupled PDEs are solved in space by grid-adaptive finite elements. The model is validated against solutions for linear non-isothermal consolidation of a column. We demonstrate the utility of the model by analyzing the behavior of a deep wellbore in a themoelastic medium circulated by a pressurized, but chilled fluid. Model results illustrate the significant importance of the cross-couplings between individual THM processes for the evaluation of wellbore stability.",

author = "Sheng, {J. C.} and J. Liu and Zhu, {W. C.} and D. Elsworth and Liu, {J. X.}",

note = "Funding Information: This work is supported by ARC-DP0209425, ARC-LX0242407 and ARC-DP0342446, and also supported by the National Natural Science Foundation of China (50779012) and open fund of the national laboratory of geological hazard prevention and geological environment protection, Chengdu University of Technology (GZ2005-02). These supports are gratefully acknowledged.",

year = "2008",

month = jan,

doi = "10.1080/00908310600712356",

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volume = "30",

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T1 - Stress analysis of a borehole in saturated rocks under in situ mechanical, hydrological and thermal interactions

AU - Sheng, J. C.

AU - Liu, J.

AU - Zhu, W. C.

AU - Elsworth, D.

AU - Liu, J. X.

N1 - Funding Information: This work is supported by ARC-DP0209425, ARC-LX0242407 and ARC-DP0342446, and also supported by the National Natural Science Foundation of China (50779012) and open fund of the national laboratory of geological hazard prevention and geological environment protection, Chengdu University of Technology (GZ2005-02). These supports are gratefully acknowledged.

PY - 2008/1

Y1 - 2008/1

N2 - A novel approach is developed to represent coupled thermal-hydraulic- mechanical (THM) behavior of porous systems that incorporates the non-isothermal free and forced convection of a single component fluid in a non-boiling thermoelastic medium. The three-way simultaneous coupling between the THM triplet is currently linear, but no restriction is placed on incorporating material nonlinearities. The coupled PDEs are solved in space by grid-adaptive finite elements. The model is validated against solutions for linear non-isothermal consolidation of a column. We demonstrate the utility of the model by analyzing the behavior of a deep wellbore in a themoelastic medium circulated by a pressurized, but chilled fluid. Model results illustrate the significant importance of the cross-couplings between individual THM processes for the evaluation of wellbore stability.

AB - A novel approach is developed to represent coupled thermal-hydraulic- mechanical (THM) behavior of porous systems that incorporates the non-isothermal free and forced convection of a single component fluid in a non-boiling thermoelastic medium. The three-way simultaneous coupling between the THM triplet is currently linear, but no restriction is placed on incorporating material nonlinearities. The coupled PDEs are solved in space by grid-adaptive finite elements. The model is validated against solutions for linear non-isothermal consolidation of a column. We demonstrate the utility of the model by analyzing the behavior of a deep wellbore in a themoelastic medium circulated by a pressurized, but chilled fluid. Model results illustrate the significant importance of the cross-couplings between individual THM processes for the evaluation of wellbore stability.

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JO - Energy Sources, Part A: Recovery, Utilization and Environmental Effects

JF - Energy Sources, Part A: Recovery, Utilization and Environmental Effects

IS - 2

ER -

Stress analysis of a borehole in saturated rocks under in situ mechanical, hydrological and thermal interactions

Abstract

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