Fundamentals of rock joint deformation

Bandis, S. C.; Lumsden, A.C.; Barton, Nick

doi:10.1016/0148-9062(83)90595-8

Cited by 1,460 publications

(711 citation statements)

References 8 publications

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“…The flow characteristics of fractures are significantly affected by effective normal stress exerted on the fractures. In spite of extensive experimental and field studies demonstrating the dynamic behavior of fractures (Bandis et al, 1983;Barton et al, 1985;Lorenz, 1999), fracture properties have often been treated as static parameters in the simulations of naturally fractured reservoirs.…”

Section: List Ofmentioning

confidence: 99%

“…Goodman (1974) explained the basic mechanics of joint normal deformation and performed experiments to show that the joint closure under increasing normal stress varies in a non-linear manner resembling a hyperbola. Later, Bandis et al (1983) and Barton et al (1985) used a large number of experimental data on interlocked block samples with natural unfilled joints. They conducted experiments on fresh and weathered joint samples from five rock types, namely slate, dolerite, limestone, siltstone, and sandstone.…”

Section: Deformation Of Natural Fracturesmentioning

confidence: 99%

“…The interlocked joint samples were subjected to a sequence of loading/unloading cycles. .1: Normal stress (σ n ) vs. closure (ΔV j ) curves for a range of (a) fresh joints and (b) weathered joints in different rock types, under repeated loading cycles (from Bandis et al, 1983).…”

Section: Deformation Of Natural Fracturesmentioning

confidence: 99%

“…Based on their experimental data, Bandis et al (1983) and Barton et al (1985) suggested a hyperbolic model for the normal deformation of fractures as given below:…”

Section: Deformation Of Natural Fracturesmentioning

confidence: 99%

“…The flow characteristics of fractures are significantly affected by effective normal stress acting on them. Bandis et al (1983) and Barton et al (1985) presented laboratory experiments on fractured cores to propose an unfilled joint deformation model. Also, experiments conducted by Wilbur and Amedei (1990) and Makurat and Gutierrez (1996) showed that the transmissivity of a fracture depends on the stress acting on that fracture.…”

Section: Introductionmentioning

confidence: 99%

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Development of an Efficient Embedded Discrete Fracture Model for 3D Compositional Reservoir Simulation in Fractured Reservoirs

et al. 2013

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Summary Many naturally fractured reservoirs around the world have depleted significantly, and improved-oil-recovery (IOR) processes are necessary for further development. Hence, the modeling of fractured reservoirs has received increased attention recently. Accurate modeling and simulation of naturally fractured reservoirs (NFRs) is still challenging because of permeability anisotropies and contrasts. Nonphysical abstractions inherent in conventional dual-porosity and dual-permeability models make them inadequate for solving different fluid-flow problems in fractured reservoirs. Also, recent technologies for discrete fracture modeling may suffer from large simulation run times, and the industry has not used such approaches widely, even though they give more-accurate representations of fractured reservoirs than dual-continuum models. We developed an embedded discrete fracture model (DFM) for an in-house compositional reservoir simulator that borrows the dual-medium concept from conventional dual-continuum models and also incorporates the effect of each fracture explicitly. The model is compatible with existing finite-difference reservoir simulators. In contrast to dual-continuum models, fractures have arbitrary orientations and can be oblique or vertical, honoring the complexity of a typical NFR. The accuracy of the embedded DFM is confirmed by comparing the results with the fine-grid, explicit-fracture simulations for a case study including orthogonal fractures and a case with a nonaligned fracture. We also perform a grid-sensitivity study to show the convergence of the method as the grid is refined. Our simulations indicate that to achieve accurate results, the embedded discrete fracture model may only require moderate mesh refinement around the fractures and hence offers a computationally efficient approach. Furthermore, examples of waterflooding, gas injection, and primary depletion are presented to demonstrate the performance and applicability of the developed method for simulating fluid flow in NFRs.

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Section: List Ofmentioning

confidence: 99%

Section: Deformation Of Natural Fracturesmentioning

confidence: 99%

Section: Deformation Of Natural Fracturesmentioning

confidence: 99%

“…Based on their experimental data, Bandis et al (1983) and Barton et al (1985) suggested a hyperbolic model for the normal deformation of fractures as given below:…”

Section: Deformation Of Natural Fracturesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of an Efficient Embedded Discrete Fracture Model for 3D Compositional Reservoir Simulation in Fractured Reservoirs

et al. 2013

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Dynamics of three-block assemblies with unilateral deformable contacts. Part 1: contact modelling

Andreaus

Casini

1999

Earthquake Engng. Struct. Dyn.

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Non-Linear Fault Behaviour Near Underground Excavations — A Boundary Element Approach

Fotoohi

Mitri

1996

Int. J. Numer. Anal. Methods Geomech.

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A boundary element model for stress/stability analysis of underground excavations in the vicinity of faults is presented. The boundary element formulation adopts the fictitious stress method for the simulation of excavation boundaries and the displacement discontinuity method for the representation of faults. The numerical model employs the Barton–Bandis non‐linear joint model for the modelling of the fault behaviour and linear elastic behaviour for the rock. An incremental‐iterative in situ stress relaxation algorithm is implemented for the non‐linear analysis of the faults. Both deformation and peak strength models of Barton–Bandis are incorporated for modelling the mechanical behaviour of the fault. The non‐linear deformation of fault considers the effects of coupling between shear and normal stresses and displacement, joint closure, joint separation, hardening followed by post‐peak or residual behaviour. The peak strength model employs a mobilized non‐linear shear strength envelope. The differences between linear and non‐linear simulation of the fault models are discussed. A comparison of model predictions with the classical Mohr–Coulomb peak strength model with constant joint stiffness is presented. The numerical model is used for a case study of Canadian hard rock underground mine. The shear and normal displacements along the fault during four mining sequences with backfill simulation are presented and discussed.

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Fundamentals of rock joint deformation

Cited by 1,460 publications

References 8 publications

Development of an Efficient Embedded Discrete Fracture Model for 3D Compositional Reservoir Simulation in Fractured Reservoirs

Development of an Efficient Embedded Discrete Fracture Model for 3D Compositional Reservoir Simulation in Fractured Reservoirs

Dynamics of three-block assemblies with unilateral deformable contacts. Part 1: contact modelling

Non-Linear Fault Behaviour Near Underground Excavations — A Boundary Element Approach

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