An in-situ thermo-hydraulic experiment in a saturated granite I: design and results

Berchenko, Ilya; Detournay, Emmanuel; Chandler, N.; Martino, J.B.

doi:10.1016/j.ijrmms.2004.09.006

Cited by 20 publications

(9 citation statements)

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“…New approaches to discrete element modelling of rock behaviour showed that the timedependent Particle Flow Code (PFC) [9] stress-corrosion model, calibrated to laboratory test data, can provide a good simulation of the excavation response of rock [10][11][12]. Back-analysis of the thermally induced pore pressure field demonstrated that the pore pressure could be modelled using the theory of thermoporoelasticity [13], requiring several thermoporoelastic parameters to be measured in the laboratory.…”

Section: Introductionmentioning

confidence: 99%

Innovative laboratory testing

Lau¹,

Chandler

2004

International Journal of Rock Mechanics and Mining Sciences

108

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Section: Introductionmentioning

confidence: 99%

Innovative laboratory testing

Lau¹,

Chandler

2004

International Journal of Rock Mechanics and Mining Sciences

108

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“…(28) are taken t 0 =20, s=0.25 and N=1000 in this paper. Some computational parameters of the soil medium are cited directly from the references [29,31] and are listed in Table 1.…”

Section: Numerical Results and Analysismentioning

confidence: 99%

“…Assuming the soil to be linear elastic isotropic saturated porous medium and considering the effect of deformation on the balance of mass and heat, the constitutive relations of an isotropic linear poroelastic medium can be expressed in terms of the effective stress and temperature change θ ( 0 T T θ = − , T is the current temperature and T 0 the initial temperature) as [30][31][32] 2 ,…”

Section: Equation Of Motionmentioning

confidence: 99%

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Model of nonlinear coupled thermo-hydro-elastodynamics response for a saturated poroelastic medium

Liu

Xie

Zheng

2008

Sci. China Ser. E-Technol. Sci.

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Based on the Biot's wave equation and theory of thermodynamic, Darcy law of fluid and the modified Fourier law of heat conduction, a nonlinear fully coupled thermo-hydro-elastodynamic response model (THMD) for saturated porous medium is derived. The compressibility of the medium, the influence of fluid flux on the heat flux, and the influence of change of temperature on the fluid flux are considered in this model. With some simplification, the coupled nonlinear thermo-hydro-elastodynamic response model can be reduced to the thermo-elastodynamic (TMD) model based on the traditional Fourier law and, further more, to the Biot's wave equation without considering the heat phase. At last, the problem of one dimensional cylindrical cavity subjected to a time-dependent thermal/mechanical shock is analyzed by using the Laplace technique, the numerical results are used to discuss the influence of Biot's modulus M and coefficient of thermo-osmosis on displacement and to compare with the results of thermo-elastodynamic response to ascertain the validity of this model. nonlinear, thermo-hydro-elastodynamic, dynamic response, laplace transform

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“…In the past, scaling laws for performing proper hydraulic fracture experiments were derived [30][31][32]. These laws scale the experiments in terms of energy rates associated with fluid flow, fracture opening and rock separation.…”

Section: Experiments Conditionsmentioning

confidence: 99%

A Laboratory Study of the Effects of Interbeds on Hydraulic Fracture Propagation in Shale Formation

Zhao

Wang

et al. 2016

Energies

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Abstract:To investigate how the characteristics of interbeds affect hydraulic fracture propagation in the continental shale formation, a series of 300 mmˆ300 mmˆ300 mm concrete blocks with varying interbeds, based on outcrop observation and core measurement of Chang 7-2 shale formation, were prepared to conduct the hydraulic fracturing experiments. The results reveal that the breakdown pressure increases with the rise of thickness and strength of interbeds under the same in-situ field stress and injection rate. In addition, for the model blocks with thick and high strength interbeds, the hydraulic fracture has difficulty crossing the interbeds and is prone to divert along the bedding faces, and the fracturing effectiveness is not good. However, for the model blocks with thin and low strength interbeds, more long branches are generated along the main fracture, which is beneficial to the formation of the fracture network. What is more, combining the macroscopic descriptions with microscopic observations, the blocks with thinner and lower strength interbeds tend to generate more micro-fractures, and the width of the fractures is relatively larger on the main fracture planes. Based on the experiments, it is indicated that the propagation of hydraulic fractures is strongly influenced by the characteristics of interbeds, and the results are instructive to the understanding and evaluation of the fracability in the continental shale formation.

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An in-situ thermo-hydraulic experiment in a saturated granite I: design and results

Cited by 20 publications

References 20 publications

Innovative laboratory testing

Innovative laboratory testing

Model of nonlinear coupled thermo-hydro-elastodynamics response for a saturated poroelastic medium

A Laboratory Study of the Effects of Interbeds on Hydraulic Fracture Propagation in Shale Formation

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