Abstract
In case of a wellbore drilled in poro-thermo-elastic rock, the process of wellbore drilling will result in thermic, hydraulic and mechanical phenomena which occur simultaneously and interact with each other. This study presents the analysis of the stress state around the wellbore located in the saturated rock at depth based on a fully coupling thermo-hydro-mechanical behavior model of the rock mass by the finite element method. Two scenarios related to thermal condition at well wall are taken into account, i.e., the drilling fluid temperature is inferior or superior to the temperature of the rock mass corresponding to the cases of “cooling” and “heating” the wellbore. The obtained results indicate that the thermic, hydraulic and mechanical phenomena in interaction with each other occurring in the material produce a large change in the stress state around the wellbore through the cases of cooling and heating. Effect of some thermic and hydraulic parameters of the rock mass on the stress state around the wellbore is also highlighted in this work.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Sayers C, Dewhurst D (2008) Introduction to this special section - Shale geophysics. Lead Edge 27(6):736–737
Zhu Z, Wang C, Guan Z, Lei W (2021) Thermal characteristics of borehole stability drilling in hot dry rock, ACS Omega, ACS Publications, pp 19026–19037
Bradley WB (1979) Failure of inclined boreholes. J Energy Resour Technol Trans AIME 102:232–239
Aadnoy BS, Ong S (2003) Introduction to special issue on borehole stability. J Petrol Sci Eng 38:79–82
Kanfar MF, Chen Z, Rahman SS (2015) Effect of material anisotropy on time-dependent wellbore stability. Int J Rock Mech Min Sci 78:36–45
Do DP, Tran NH, Hoxha D, Dang HL (2017) Assessment of the influence of hydraulic and mechanical anisotropy on the fracture initiation pressure in permeable rocks using a complex potential approach. Int J Rock Mech Min Sci 100:108–123
Tran NH, Do DP, Vu MN, Nguyen TTN, Pham DT, Trieu HT (2022) Combined effect of anisotropy and uncertainty on the safe mud pressure window of horizontal wellbore drilled in anisotropic saturated rock. Int J Rock Mech Min Sci 152(105061):1–20
Ghassemi A, Diek A (2002) Porothermoelasticity for swelling shales. J Pet Sci Eng 34:123–135
Kanfar MF, Chen Z, Rhaman SS (2016) Fully coupled 3D anisotropic conductive-convective porothermoelasticity modeling for inclined boreholes. Geothermics 61:135–148
Abousleiman Y, Ekbote S (2005) Solutions for the inclined borehole in a porothermoelastic transversely isotropic medium. J Appl Mech 72:102–114
Roland WL, Perumal N, Seetharamu KN (2004) Fundamentals of the finite element method for heat and fluid flow, vol 3. John Wiley & Sons
Granet S (2014) Modelings THHM. Gen Inf Algorithms. https://code-aster.org/V2/doc/default/en/man_r/r7/r7.01.10.pdf
Acknowledgements
This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED), under grant number 105.99-2020.21.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Tran, N.H., Nguyen, T.T.N., Pham, D.T., Pham, D.T. (2024). Thermo-Hydro-Mechanical Behavior of the Rock Mass Surrounding Wellbore in Deep Saturated Geological Layer. In: Nguyen-Xuan, T., Nguyen-Viet, T., Bui-Tien, T., Nguyen-Quang, T., De Roeck, G. (eds) Proceedings of the 4th International Conference on Sustainability in Civil Engineering. ICSCE 2022. Lecture Notes in Civil Engineering, vol 344. Springer, Singapore. https://doi.org/10.1007/978-981-99-2345-8_39
Download citation
DOI: https://doi.org/10.1007/978-981-99-2345-8_39
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-99-2344-1
Online ISBN: 978-981-99-2345-8
eBook Packages: EngineeringEngineering (R0)