A method for 3-D hydraulic fracturing simulation

Secchi, Stefano; Schrefler, Bernhard A.

doi:10.1007/s10704-012-9742-y

Cited by 124 publications

(64 citation statements)

References 33 publications

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“…The fluid flow in the crack was solved using a finite difference method. Schrefler and co-workers [10][11][12] modelled a cohesive fracture using the FEM but included a mesh adaptation scheme so that propagating fractures in arbitrary directions can be modelled in two-and three-dimensional situations. Hydraulic fracturing was investigated in a permeable material by Sarris and Papanastasiou [13] with a finite element analysis including cohesive zone elements.…”

Section: Introductionmentioning

confidence: 99%

The enhanced local pressure model for the accurate analysis of fluid pressure driven fracture in porous materials

Remij

Remmers

Huyghe

et al. 2015

Computer Methods in Applied Mechanics and Engineering

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Section: Introductionmentioning

confidence: 99%

The enhanced local pressure model for the accurate analysis of fluid pressure driven fracture in porous materials

Remij

Remmers

Huyghe

et al. 2015

Computer Methods in Applied Mechanics and Engineering

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“…Should gas pressures increase and fracturing occur at a late stage, a number of models for pressure-induced fracturing exist, although they have not yet been applied to buffer materials for radioactive waste materials (e.g. Boone and Ingraffea, 1990;Réthoré et al, 2008;Secchi and Schrefler, 2012).…”

Section: Introductionmentioning

confidence: 99%

Simulation of repository gas migration in a bentonite buffer

Thomas¹,

Masum²,

Chen³

et al. 2014

Proceedings of the Institution of Civil Engineers - Engineering

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The inventory of high-level radioactive waste in the UK is likely to be disposed of in a geological disposal facility, which will generate gases due to processes such as anoxic metal corrosion and water radiolysis. Such gases have the potential to migrate through the repository system and may be detrimental to the engineered barrier system by damaging the physical fabric of the buffer material through the build-up of pressure. An investigation into the migration of gases and the ranges of gas pressures expected in such a repository is presented. A model of gas transport is presented to simulate the transport of gases in conjunction with coupled thermo-hydro-chemical-mechanical processes. This model includes a boundary condition linking the corrosion behaviour to gas generation and water supply. A realistic range of gas generation rates has been established from available data alongside realistic ranges of material properties of a bentonite buffer. Numerical simulations were then undertaken for a range of realistic scenarios considering the corrosion processes and buffer properties.It was found that in all realistic cases, including realistic maxima and minima considered, the risk of pneumatic fracture was negligible.

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“…Boone & Ingraffea (1990) developed a numerical model based on the finite element method (FEM) for the poroelastic material where a cohesive zone description was used for the fracture. Using a mesh adaptation scheme in a poroelastic FEM, Schreffler and co-workers (Schrefler et al 2006, Secchi et al 2007, Secchi and Schrefler 2012) simulated propagating hydraulic fractures in a arbitrary directions. Carrier & Granet (2012) used a similar approach with a priori placed interface elements that contained an additional degree of freedom for the pressure in the fracture.…”

Section: Introductionmentioning

confidence: 99%

Numerical modelling of hydraulic fracturing

Remij¹,

Remmers²,

Huyghe³

et al. 2014

Computer Methods and Recent Advances in Geomechanics

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In this paper we present a numerical model for hydraulic fracturing purposes. The rock formation is modelled as a poroelastic material based on Biot's Theory. A fracture is represented in a discrete manner using the eXtended Finite Element Method (X-FEM). The fluid flow is governed by a local mass balance. This means that there is an equilibrium between the opening of the fracture, the tangential fluid flow, and the fluid leakage. The mass balance in the fracture is solved with a separate equation by including an additional degree of freedom for the pressure in the fracture. The fracture can grow in arbitrary directions by using an average stress criterion. We show a result of hydraulic fracture propagation for a 2D circular borehole. The fracture direction is consistent with the expected direction.

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A method for 3-D hydraulic fracturing simulation

Cited by 124 publications

References 33 publications

The enhanced local pressure model for the accurate analysis of fluid pressure driven fracture in porous materials

The enhanced local pressure model for the accurate analysis of fluid pressure driven fracture in porous materials

Simulation of repository gas migration in a bentonite buffer

Numerical modelling of hydraulic fracturing

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