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Thermophysical and Mechanical Properties of Granite and Its Effects on Borehole Stability in High Temperature and Three-Dimensional Stress
Joint Authors
Yan, Chuanliang
Liu, Baolin
Yu, Wang
Zhi-jun, Li
Zhi-qiao, Wang
Hai-Yan, Zhu
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-20
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
When exploiting the deep resources, the surrounding rock readily undergoes the hole shrinkage, borehole collapse, and loss of circulation under high temperature and high pressure.
A series of experiments were conducted to discuss the compressional wave velocity, triaxial strength, and permeability of granite cored from 3500 meters borehole under high temperature and three-dimensional stress.
In light of the coupling of temperature, fluid, and stress, we get the thermo-fluid-solid model and governing equation.
ANSYS-APDL was also used to stimulate the temperature influence on elastic modulus, Poisson ratio, uniaxial compressive strength, and permeability.
In light of the results, we establish a temperature-fluid-stress model to illustrate the granite’s stability.
The compressional wave velocity and elastic modulus, decrease as the temperature rises, while poisson ratio and permeability of granite increase.
The threshold pressure and temperature are 15 MPa and 200°C, respectively.
The temperature affects the fracture pressure more than the collapse pressure, but both parameters rise with the increase of temperature.
The coupling of thermo-fluid-solid, greatly impacting the borehole stability, proves to be a good method to analyze similar problems of other formations.
American Psychological Association (APA)
Yu, Wang& Liu, Baolin& Hai-Yan, Zhu& Yan, Chuanliang& Zhi-jun, Li& Zhi-qiao, Wang. 2014. Thermophysical and Mechanical Properties of Granite and Its Effects on Borehole Stability in High Temperature and Three-Dimensional Stress. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1050510
Modern Language Association (MLA)
Yu, Wang…[et al.]. Thermophysical and Mechanical Properties of Granite and Its Effects on Borehole Stability in High Temperature and Three-Dimensional Stress. The Scientific World Journal No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1050510
American Medical Association (AMA)
Yu, Wang& Liu, Baolin& Hai-Yan, Zhu& Yan, Chuanliang& Zhi-jun, Li& Zhi-qiao, Wang. Thermophysical and Mechanical Properties of Granite and Its Effects on Borehole Stability in High Temperature and Three-Dimensional Stress. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1050510
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1050510