Three-dimensional poroelastic effects during hydraulic fracturing in permeable rocks

Salimzadeh, Saeed; Paluszny, Adriana; Zimmerman, Robert W.

doi:10.1016/j.ijsolstr.2016.12.008

Cited by 105 publications

(80 citation statements)

References 38 publications

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“…When modelling fracture growth, previous studies (Olson and Taleghani 2009;Bunger et al 2012;Wu and Olson 2015;Peirce and Bunger 2015) mostly assume that the fluid leakoff is negligible. The effect of the leakoff on the hydraulic fracturing of a single fracture has been shown in many studies (Carrier and Granet, 2012;Salimzadeh and Khalili, 2015;Salimzadeh et al, 2016). In the present study, the poroelastic effect of the leakoff on the interactions between multiple hydraulic fractures is shown.…”

Section: Simulation Results and Analysismentioning

confidence: 50%

“…The comparison of MF1, MF3, and MF5 reveal that the propagation path straightens as the Biot coefficient increases. The increase in permeability and Biot coefficient both contribute together to the increase in fluid leakoff (Salimzadeh et al 2016) which causes the aperture of the fracture to decrease, and the compressive stress in the direction perpendicular to the fracture plane to reduce. As shown in in Figure 5, the reduction of this compressive stress re-orientates the near-field principal stresses, which make the propagation paths straighter compared to the storage cases.…”

Section: Fracture Propagation Modelmentioning

confidence: 99%

“…To numerically model the hydro-mechanical evolution of fluid-driven fracturing with leakoff, it is essential to couple the fluid flow in the matrix with the mechanical deformation of the rock and the fluid flow inside the fracture (Carrier and Granet 2012;Salimzadeh and Khalili, 2015). Salimzadeh et al (2016) define separate flow models for rock matrix and fractures to capture the hydraulic loadings on the fractures surfaces, as well as the poroelastic deformations of rock matrix on the mesh-independent, finite elementbased framework. The mesh independent, finite element-based method decouples the crack propagation and the meshing, and performs each process separately to calculate the non-planar 3D fracture propagation in accurately and efficiently (Paluszny and Zimmerman 2011;Paluszny et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…The objective of this study is to numerically model the interaction of multiple hydraulic fractures initiated from penny-shaped cracks in a horizontal well in 3D, and to evaluate the effect of poroelasticity on the predicted growth such as the propagation paths or the growth speeds of the fractures, by using the techniques to build three dimensional fully coupled poroelastic models (Paluszny and Zimmerman 2011;Salimzadeh et al 2016). …”

Section: Introductionmentioning

confidence: 99%

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Effect of Poroelasticity on Hydraulic Fracture Interactions

et al. 2017

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This study investigates, by performing finite element-based simulations, the influence of fluid leak-off and poroelasticity on growth of multiple hydraulic fractures that initiate from a single horizontal well. In this research, poroelastic deformation of the matrix is coupled with fluid flow in the fractures, and fluid flow in the rock matrix, in three dimensions. Effects of the fluid leakoff and poroelasticity on the propagation of the neighboring fractures are studied by varying the matrix permeability, and the Biot coefficient. Simulation results show that the stress induced by the opening of the fractures, and the stress induced by the fluid leak-off, each have the effect of locally altering the magnitudes and orientations of the principal stresses, hence altering the propagation direction of the fractures. The stress induced by the opening of the fractures tends to propagate both of the fractures away from each other in a curved trajectory, whereas the effects of fluid leak-off and poroelasticity (i.e., a higher Biot coefficient) tend to straighten the curved trajectory.

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Section: Simulation Results and Analysismentioning

confidence: 50%

Section: Fracture Propagation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Poroelasticity on Hydraulic Fracture Interactions

et al. 2017

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“…Such a strategy is, of course, computationally expensive especially in 3D. The use of adaptive remeshing in the context of hydraulic fracturing simulation has recently received a renewed attention, see the recent work of Paluszny and Zimmerman (2011) for dry fracture, and Salimzadeh et al (2016) for planar 3D hydraulic fractures. A local remeshing approach (i.e.…”

Section: Fracture Growth With Re-meshingmentioning

confidence: 99%

Numerical methods for hydraulic fracture propagation: A review of recent trends

Lecampion

Bunger

Zhang

2018

Journal of Natural Gas Science and Engineering

350

172

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Quantification of Fracture Interaction Using Stress Intensity Factor Variation Maps

2017

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Accurate and flexible models of fracture interaction are sought after in the fields of mechanics and geology. Stress intensity factors (SIFs) quantify the energy concentrated at the fracture tips and are perturbed from their isolated values when two fractures are close to one another. Using a three‐dimensional finite element fracture mechanics code to simulate static fractures in tension and compression, interaction effects are examined. SIF perturbations are characterized by introducing three interaction measures: the circumferential and maximum SIF perturbation provide the “magnitude” of the effect of interaction, and the amplification to shielding ratio quantifies the balance between increased and decreased SIFs along the tip. These measures are used to demonstrate the change in interaction with fracture separation and to find the separation at which interaction becomes negligible. Interaction maps are constructed by plotting the values of the interaction measures for a static fracture as a second fracture is moved around it. These maps are presented for several common fracture orientations in tension. They explore interaction by highlighting regions in which growth is more likely to occur and where fractures will grow into nonplanar geometries. Interaction maps can be applied to fracture networks with multiple discontinuities to analyze the effect of geometric variations on fracture interaction.

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Three-dimensional poroelastic effects during hydraulic fracturing in permeable rocks

Cited by 105 publications

References 38 publications

Effect of Poroelasticity on Hydraulic Fracture Interactions

Effect of Poroelasticity on Hydraulic Fracture Interactions

Numerical methods for hydraulic fracture propagation: A review of recent trends

Quantification of Fracture Interaction Using Stress Intensity Factor Variation Maps

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